TI1 DRA78X Infotainment applications processor Datasheet

Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DRA78x Infotainment Applications Processor
1 Device Overview
1.1
Features
1
• Architecture Designed for Infotainment
Applications
• Up to 2 C66x Floating-Point VLIW DSP
– Fully Object-Code Compatible With C67x and
C64x+
– Up to Thirty-two 16 × 16-Bit Fixed-Point
Multiplies per Cycle
• Up to 512kB of On-Chip L3 RAM
• Level 3 (L3) and Level 4 (L4) Interconnects
• Memory Interface (EMIF) Module
– Supports DDR3/DDR3L up to DDR-1066
– Supports DDR2 up to DDR-800
– Up to 2GB Supported
• Dual ARM® Cortex®-M4 (IPU)
• Vision AccelerationPac
– Embedded Vision Engine (EVE)
• Display Subsystem
– Display Controller With DMA Engine
– CVIDEO / SD-DAC TV Analog Composite
Output
• On-chip Temperature Sensor That is Capable of
Generating Temperature Alerts
• General-Purpose Memory Controller (GPMC)
• Enhanced Direct Memory Access (EDMA)
Controller
• 3-Port (2 External) Gigabit Ethernet (GMAC)
Switch
• Controller Area Network (DCAN) Module
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
– CAN 2.0B Protocol
Modular Controller Area Network (MCAN) Module
– CAN 2.0B Protocol
Eight 32-Bit General-Purpose Timers
Three Configurable UART Modules
Four Multichannel Serial Peripheral Interfaces
(McSPI)
Quad SPI Interface
Two Inter-Integrated Circuit (I2C) Ports
Three Multichannel Audio Serial Port (McASP)
Modules
MultiMedia Card/Secure Digital/Secure Digital
Input Output Interface (MMC/SD/SDIO)
Up to 126 General-Purpose I/O (GPIO) Pins
Power, Reset, and Clock Management
On-Chip Debug With CTools Technology
Automotive AEC-Q100 Qualified
15 × 15mm, 0.65-mm Pitch, 367-Pin PBGA (ABF)
Five Instances of Real-Time Interrupt (RTI)
Modules That Can be Used as Watch Dog Timers
8-Channel 10-bit ADC
PWMSS
Video and Image Processing Support
– Full-HD Video (1920 × 1080p, 60 fps)
– Video Input and Video Output
– GPIOs when not used for video
Video Input Port (VIP) Module
– Support for up to 4 Multiplexed Input Ports
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
1.2
•
•
Applications
Digital and Analog Radio
Hybrid Radio
1.3
www.ti.com
•
•
DSP Audio Amplifier
Vehicle Connectivity Co-processor
Description
The DRA78x processor is offered in a 367-ball, 15×15-mm, 0.65-mm ball pitch (0.8mm spacing rules can
be used on signals) with Via Channel™ Array (VCA) technology, ball grid array (S-PBGA) package.
The architecture is designed to deliver high-performance concurrencies for automotive co-processor,
hybrid radio and amplifier applications in a cost-effective solution, providing full scalability from the
DRA75x ("Jacinto 6 EP" and "Jacinto 6 Ex"), DRA74x "Jacinto 6", DRA72x "Jacinto 6 Eco", and DRA71x
"Jacinto 6 Entry" family of infotainment processors.
Additionally, TI provides a complete set of development tools for the ARM, and DSP, including C
compilers and a debugging interface for visibility into source code execution.
The DRA78x Jacinto 6 RSP (Radio Sound Processor) device family is qualified according to the AECQ100 standard.
The device features a simplified power supply rail mapping which enables lower cost PMIC solutions.
Device Information
2
PART NUMBER
PACKAGE
BODY SIZE
DRA78x
S-PBGA (367)
15.0 mm × 15.0 mm
Device Overview
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
1.4
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Functional Block Diagram
Figure 1-1 is functional block diagram of the superset.
L1P 32KiB
2x Cortex-M4
16KiB ROM
L2
256KiB
Cache
C66x
Display
Subsystem
IPU with ECC
DSP Subsystem x2
DVOUT
L1D 32KiB
Vision
Accelerator
EDMA 2TC
SD-DAC
EVE 16MAC
Video Front End
OSD
Resizing
CSC
EDMA 2TC
Video Input Port
up to 512KiB RAM
with ECC
Radio Accelerator
Interconnect
HD ATL
DRA78x
Serial Interfaces
JTAG
Connectivity
I2C x2
GEMAC Switch
System
EDMA
Timer x8
McSPI x4
McASP x3
GPIO x4
Mailbox/Spinlock
QSPI x1
DCAN (with ECC)
PWMSS x1
10-bit ADC
SDIO x1
MCAN (CAN-FD)
with ECC
MMU x1
Control Module
PRCM
RTI x5
UART x3
PLLs
OSC
Memory Controllers
GPMC 8b/16b
with up to 16b ECC
DDR2/DDR3/DDR3L
32b with 8b ECC
func_sprs968-001
Copyright © 2016, Texas Instruments Incorporated
Figure 1-1. DRA78x Block Diagram
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Device Overview
3
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table of Contents
1
Device Overview ......................................... 1
6.6
Memory Subsystem ................................ 181
............................................. 1
1.2
Applications ........................................... 2
1.3
Description ............................................ 2
1.4
Functional Block Diagram ........................... 3
Revision History ......................................... 5
Device Comparison ..................................... 6
3.1
Device Comparison Table ............................ 6
Terminal Configuration and Functions .............. 8
4.1
Pin Diagram .......................................... 8
4.2
Pin Attributes ......................................... 8
4.3
Signal Descriptions .................................. 39
4.4
Pin Multiplexing ..................................... 65
4.5
Connections for Unused Pins ....................... 76
Specifications ........................................... 77
5.1
Absolute Maximum Ratings ......................... 77
5.2
ESD Ratings ........................................ 78
5.3
Power on Hour (POH) Limits........................ 78
5.4
Recommended Operating Conditions ............... 79
5.5
Operating Performance Points ...................... 80
5.6
Power Consumption Summary...................... 90
5.7
Electrical Characteristics ............................ 90
5.8
Thermal Characteristics ............................. 96
6.7
Interprocessor Communication
6.8
Interrupt Controller ................................. 185
1.1
2
3
4
5
6.9
EDMA .............................................. 185
6.10
Peripherals ......................................... 187
6.11
On-Chip Debug .................................... 199
Applications, Implementation, and Layout ...... 203
........................................
7.1
Introduction
7.2
Power Optimizations ............................... 204
7.3
Core Power Domains .............................. 215
7.4
Single-Ended Interfaces
7.5
Differential Interfaces
7.6
7.7
7.8
7.9
8
184
...........................
..............................
Clock Routing Guidelines ..........................
DDR2 Board Design and Layout Guidelines.......
DDR3 Board Design and Layout Guidelines.......
203
224
227
228
228
240
CVIDEO/SD-DAC Guidelines and Electrical
Data/Timing ........................................ 263
Device and Documentation Support .............. 265
Device Nomenclature .............................. 265
8.2
Tools and Software ................................ 267
8.3
Documentation Support ............................ 267
8.4
Receiving Notification of Documentation Updates. 268
8.5
Related Links
Timing Requirements and Switching
Characteristics....................................... 97
8.6
Community Resources............................. 269
8.7
Trademarks ........................................ 269
Detailed Description.................................. 172
8.8
Electrostatic Discharge Caution
6.1
Description ......................................... 172
8.9
Export Control Notice .............................. 269
6.2
Functional Block Diagram
172
8.10
Glossary............................................ 269
6.3
DSP Subsystem
173
6.4
6.5
4
7
....................
8.1
5.9
6
Features
.........................
...................................
IPU .................................................
EVE ................................................
Table of Contents
9
......................................
...................
268
269
178
Mechanical Packaging and Orderable
Information ............................................. 270
179
9.1
Mechanical Data ................................... 270
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
2 Revision History
Changes from May 6, 2017 to July 30, 2017 (from B Revision (May 2017) to C Revision)
•
•
•
•
•
•
Page
Updated descriptions for balls with single muxmode in Table 4-1 ............................................................ 10
Updated Voltage Domains Values Operating Performance Points in Table 5-3 ........................................... 81
Updated Source Clock Names for McASP in Table 5-5 ....................................................................... 82
Removed DPLLs Type A and Type B references from Section 5.9.4.3.1 .................................................. 108
Updated McASP Timing Requirements and Switching Characteristics tables in Section 5.9.6.11 ..................... 151
Removed McASP AHCLKR references from Section 5.9.6.11 .............................................................. 151
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Revision History
5
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
3 Device Comparison
3.1
Device Comparison Table
Table 3-1 shows a comparison between devices, highlighting the differences.
Table 3-1. Device Comparison
Features
Device
DRA780
DRA781
DRA782
DRA783
DRA786
DRA787
112 (0x70)
113 (0x71)
114 (0x72)
115 (0x73)
118 (0x76)
119 (0x77)
Features
CTRL_WKUP_STD_FUSE_DIE_ID_2 [31:24] Base PN
register bitfield value(3)
Processors/ Accelerators
Speed Grades
C66x VLIW DSP
DSP1
D
R
D
R
D
R
Yes
Yes
Yes
Yes
Yes
Yes
DSP2
No
No
Yes
Yes
Yes
Yes
VOUT1
Yes
Yes
Yes
Yes
Yes
Yes
SD_DAC
Yes
Yes
Yes
Yes
Yes
Yes
Embedded Vision Engine (EVE)
EVE1
No
No
No
No
Yes
Yes
Dual ARM Cortex-M4 Image
Processing Unit (IPU)
IPU1
Yes
Yes
Yes
Yes
Yes
Yes
Imaging Subsystem Processor (ISS)
with MIPI CSI-2 and CPI ports
ISP
No
No
No
No
No
No
WDR & Mesh
LDC(1)
No
No
No
No
No
No
CAL_A
No
No
No
No
No
No
CAL_B
No
No
No
No
No
No
LVDS-RX
No
No
No
No
No
No
CPI
No
No
No
No
No
No
vin1a
Yes
Yes
Yes
Yes
Yes
Yes
vin1b
Yes
Yes
Yes
Yes
Yes
Yes
vin2a
Yes
Yes
Yes
Yes
Yes
Yes
vin2b
Yes
Yes
Yes
Yes
Yes
Yes
512kB
512kB
512kB
512kB
512kB
512kB
Yes
Yes
Yes
Yes
Yes
Yes
up to 2GB
up to 2GB
up to 2GB
up to 2GB
up to 2GB
up to 2GB
ATL
Yes
Yes
Yes
Yes
Yes
Yes
DCAN1
Yes
Yes
Yes
Yes
Yes
Yes
MCAN
FD(2)
FD(2)
FD(2)
FD(2)
FD(2)
FD(2)
Enhanced DMA (EDMA)
EDMA
Yes
Yes
Yes
Yes
Yes
Yes
Embedded 8 channel ADC
ADC
Yes
Yes
Yes
Yes
Yes
Yes
Ethernet Subsystem (Ethernet SS)
GMAC_SW[0]
RGMII Only
RGMII
Only
RGMII Only
RGMII
Only
RGMII Only RGMII Only
GMAC_SW[1]
RGMII Only
RGMII
Only
RGMII Only
RGMII
Only
RGMII Only RGMII Only
Up to 126
Up to 126
Up to 126
Up to 126
Up to 126
Up to 126
2
2
2
2
2
2
Display Subsystem
Video Input
Port (VIP)
VIP1
Program/Data Storage
On-Chip Shared Memory (RAM)
OCMC_RAM1
General-Purpose Memory Controller
(GPMC)
GPMC
DDR2/DDR3/DDR3L Memory
Controller
EMIF1
(optional with
SECDED)
Radio Support
Audio Tracking Logic (ATL)
Peripherals
Controller Area Network Interface
(CAN)
General-Purpose IO (GPIO)
GPIO
Inter-Integrated Circuit Interface (I2C)
I2C
6
Device Comparison
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 3-1. Device Comparison (continued)
Features
Device
DRA780
DRA781
DRA782
DRA783
DRA786
DRA787
System Mailbox Module
MAILBOX
2
2
2
2
2
2
Multichannel Audio Serial Port
(McASP)
McASP1
16
serializers
16
serializers
16
serializers
16
serializers
16
serializers
16
serializers
McASP2
6 serializers
6
serializers
6 serializers
6
serializers
6 serializers 6 serializers
McASP3
6 serializers
6
serializers
6 serializers
6
serializers
6 serializers 6 serializers
1x SDIO 4b
1x SDIO
4b
1x SDIO 4b
1x SDIO
4b
1x SDIO 4b
1x SDIO 4b
MultiMedia Card/Secure Digital/Secure MMC
Digital Input Output Interface
(MMC/SD/SDIO)
Multichannel Serial Peripheral
Interface (McSPI)
McSPI
4
4
4
4
4
4
Quad SPI (QSPI)
QSPI
Yes
Yes
Yes
Yes
Yes
Yes
Spinlock Module
SPINLOCK
Yes
Yes
Yes
Yes
Yes
Yes
Timers, General-Purpose
TIMER
8
8
8
8
8
8
Dual Clock Comparators (DCC)
DCC
No
No
No
No
No
No
Pulse-Width Modulation Subsystem
(PWMSS)
PWMSS1
Yes
Yes
Yes
Yes
Yes
Yes
Universal Asynchronous
Receiver/Transmitter (UART)
UART
3
3
3
3
3
3
Memory Cyclic Redundancy Check
(CRC)
CRC
No
No
No
No
No
No
TESOC (LBIST/PBIST)
LBIST/PBIST
No
No
No
No
No
No
Error Signaling Module (ESM)
ESM
No
No
No
No
No
No
Real Time Interrupt (RTI)
RTI
5
5
5
5
5
5
(1) Wide Dynamic Range and Lens Distortion Correction.
(2) MCAN with available FD (Flexible Data Rate) functionality. Devices that show MCAN = Yes do not support the Flexible Data Rate (FD)
feature.
(3) For more details about the CTRL_WKUP_STD_FUSE_DIE_ID_2 register and Base PN bitfield, see the DRA78x Technical Reference
Manual.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Device Comparison
7
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
4 Terminal Configuration and Functions
4.1
Pin Diagram
Figure 4-1 shows the ball locations for the 367 plastic ball grid array (PBGA) package and are used in
conjunction with Table 4-1 through Table 4-28 to locate signal names and ball grid numbers.
AB
AA
Y
W
V
U
T
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
1
5
3
2
4
9
7
6
8
11 13 15 17 19 21
10 12 14 16 18 20 22
SPRS916_BALL_01
Figure 4-1. ABF S-PBGA-N367 Package (Bottom View)
NOTE
The following bottom balls are not connected: C4 / C7 / C9 / C11 / C13 / C15 / C19 / D4 / D5
/ D9 / D11 / D13 / D17 / D18 / D19 / D20 / E4 / E5 / E6 / E9 / E11 / E13 / E15 / E18 / E19 /
F5 / F9 / F11 / F18 / G13 / G15 / G17 / G20 / H3 / H4 / H5 / H6 / J8 / J9 / J12 / J13 / J14 /
J18 / J19 / J20 / K3 / K4 / K5 / K6 / L9 / L10 / L11 / L13 / L14 / L17 / L18 / L19 / L20 / M3 /
M4 / M5 / M6 / N9 / N11 / N13 / N14 / N17 / N18 / N19 / N20 / P3 / P4 / P5 / P6 / R8 / R10 /
R11 / R13 / R14 / R15 / R17 / R18 / R19 / R20 / T3 / T6 / U5 / U10 / U12 / U14 / U18 / V4 /
V5 / V6 / V8 / V10 / V12 / V14 / V17 / V18 / V19 / W3 / W4 / W5 / W10 / W12 / W14 / W18 /
W19 / W20 / Y4 / Y7 / Y10 / Y12 / Y14 / Y16 / Y19.
These balls do not exist on the package.
4.2
Pin Attributes
Table 4-1 describes the terminal characteristics and the signals multiplexed on each ball. The following list
describes the table column headers:
1. BALL NUMBER: Ball number(s) on the bottom side associated with each signal on the bottom.
2. BALL NAME: Mechanical name from package device (name is taken from muxmode 0).
3. SIGNAL NAME: Names of signals multiplexed on each ball (also notice that the name of the ball is the
signal name in muxmode 0).
NOTE
Table 4-1 does not take into account the subsystem multiplexing signals. Subsystem
multiplexing signals are described in Section 4.3, Signal Descriptions.
NOTE
In the Driver off mode, the buffer is configured in high-impedance.
8
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
4. MUXMODE: Multiplexing mode number:
(a) MUXMODE 0 is the primary mode; this means that when MUXMODE=0 is set, the function
mapped on the pin corresponds to the name of the pin. The primary muxmode is not necessarily
the default muxmode.
NOTE
The default mode is the mode at the release of the reset; also see the RESET REL.
MUXMODE column.
(b) MUXMODE 1 through 15 are possible muxmodes for alternate functions. On each pin, some
muxmodes are effectively used for alternate functions, while some muxmodes are not used. Only
MUXMODE values which correspond to defined functions should be used.
5. TYPE: Signal type and direction:
– I = Input
– O = Output
– IO = Input or Output
– D = Open drain
– DS = Differential Signaling
– A = Analog
– PWR = Power
– GND = Ground
– CAP = LDO Capacitor
6. BALL RESET STATE: The state of the terminal at power-on reset:
– drive 0 (OFF): The buffer drives VOL (pulldown or pullup resistor not activated).
– drive 1 (OFF): The buffer drives VOH (pulldown or pullup resistor not activated).
– OFF: High-impedance
– PD: High-impedance with an active pulldown resistor
– PU: High-impedance with an active pullup resistor
7. BALL RESET REL. STATE: The state of the terminal at the deactivation of the rstoutn signal (also
mapped to the PRCM SYS_WARM_OUT_RST signal).
– drive 0 (OFF): The buffer drives VOL (pulldown or pullup resistor not activated).
– drive clk (OFF): The buffer drives a toggling clock (pulldown or pullup resistor not activated).
– drive 1 (OFF): The buffer drives VOH (pulldown or pullup resistor not activated).
– OFF: High-impedance
– PD: High-impedance with an active pulldown resistor
– PU: High-impedance with an active pullup resistor
NOTE
For more information on the CORE_PWRON_RET_RST reset signal and its reset sources,
see the Power, Reset, and Clock Management / Reset Management Functional Description
section of the Device TRM.
8. BALL RESET REL. MUXMODE: This muxmode is automatically configured at the release of the
rstoutn signal (also mapped to the PRCM SYS_WARM_OUT_RST signal).
9. IO VOLTAGE VALUE: This column describes the IO voltage value (the corresponding power supply).
10. POWER: The voltage supply that powers the terminal IO buffers.
11. HYS: Indicates if the input buffer is with hysteresis:
– Yes: With hysteresis
– No: Without hysteresis
An empty box means "Yes".
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
9
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
NOTE
For more information, see the hysteresis values in Section 5.7, DC Electrical Characteristics.
12. BUFFER TYPE: Drive strength of the associated output buffer.
NOTE
For programmable buffer strength:
– The default value is given in Table 4-1.
– A note describes all possible values according to the selected muxmode.
13. PULL UP / DOWN TYPE: Denotes the presence of an internal pullup or pulldown resistor. Pullup and
pulldown resistors can be enabled or disabled via software.
14. DSIS: The deselected input state (DSIS) indicates the state driven on the peripheral input (logic "0" or
logic "1") when the peripheral pin function is not selected by any of the CTRL_CORE_PADx registers.
– 0: Logic 0 driven on the peripheral's input signal port.
– 1: Logic 1 driven on the peripheral's input signal port.
– blank: Pin state driven on the peripheral's input signal port.
NOTE
Configuring two pins to the same input signal is not supported as it can yield unexpected
results. This can be easily prevented with the proper software configuration (Hi-Z mode is not
an input signal).
NOTE
When a pad is set into a multiplexing mode which is not defined by pin multiplexing, that
pad’s behavior is undefined. This should be avoided.
10
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
M19
adc_in0
adc_in0
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
M20
adc_in1
adc_in1
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
M21
adc_in2
adc_in2
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
M22
adc_in3
adc_in3
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
N22
adc_in4
adc_in4
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
N21
adc_in5
adc_in5
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
P19
adc_in6
adc_in6
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
P18
adc_in7
adc_in7
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
P20
adc_vrefp
adc_vrefp
0
A
OFF
OFF
0
1.8
vdda_adc
NA
GPADC
NA
N15
cap_vddram_core1
cap_vddram_core1
CAP
M15
cap_vddram_core2
cap_vddram_core2
CAP
M14
cap_vddram_dspeve
cap_vddram_dspeve
A11
csi2_0_dx0
csi2_0_dx0
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
A12
csi2_0_dx1
csi2_0_dx1
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
A13
csi2_0_dx2
csi2_0_dx2
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
A15
csi2_0_dx3
csi2_0_dx3
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
A16
csi2_0_dx4
csi2_0_dx4
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
B11
csi2_0_dy0
csi2_0_dy0
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
B12
csi2_0_dy1
csi2_0_dy1
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
B13
csi2_0_dy2
csi2_0_dy2
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
B15
csi2_0_dy3
csi2_0_dy3
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
B16
csi2_0_dy4
csi2_0_dy4
0
I
OFF
OFF
0
1.8
vdda_csi
Yes
LVCMOS
CSI2
PU/PD
T18
cvideo_rset
cvideo_rset
0
A
OFF
OFF
0
1.8
vdda_dac
NA
AVDAC
NA
T17
cvideo_tvout
cvideo_tvout
0
A
OFF
OFF
0
1.8
vdda_dac
NA
AVDAC
NA
P17
cvideo_vfb
cvideo_vfb
0
A
OFF
OFF
0
1.8
vdda_dac
NA
AVDAC
NA
N6
dcan1_rx
dcan1_rx
0
IO
PU
PU
15
1.8/3.3
vddshv1
Yes
gpio4_10
14
IO
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
dcan1_tx
0
IO
PU
PU
15
1.8/3.3
vddshv1
Yes
gpio4_9
14
IO
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
N5
dcan1_tx
DSIS [14]
CAP
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
11
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
F2
ddr1_casn
ddr1_casn
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
G1
ddr1_ck
ddr1_ck
0
O
PD
drive clk
(OFF)
0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
AB13
ddr1_dqm_ecc
ddr1_dqm_ecc
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AB10
ddr1_dqsn_ecc
ddr1_dqsn_ecc
0
IO
PU
PU
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA10
ddr1_dqs_ecc
ddr1_dqs_ecc
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
G2
ddr1_nck
ddr1_nck
0
O
PD
drive clk
(OFF)
0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
F1
ddr1_rasn
ddr1_rasn
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
N1
ddr1_rst
ddr1_rst
0
O
PD
drive 0 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
E3
ddr1_wen
ddr1_wen
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
U4
ddr1_a0
ddr1_a0
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
C1
ddr1_a1
ddr1_a1
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
D3
ddr1_a2
ddr1_a2
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
R4
ddr1_a3
ddr1_a3
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
T4
ddr1_a4
ddr1_a4
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
N3
ddr1_a5
ddr1_a5
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
T2
ddr1_a6
ddr1_a6
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
N2
ddr1_a7
ddr1_a7
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
T1
ddr1_a8
ddr1_a8
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
U1
ddr1_a9
ddr1_a9
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
D1
ddr1_a10
ddr1_a10
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
R3
ddr1_a11
ddr1_a11
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
U2
ddr1_a12
ddr1_a12
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
C3
ddr1_a13
ddr1_a13
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
12
Terminal Configuration and Functions
DSIS [14]
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
R2
ddr1_a14
ddr1_a14
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
V1
ddr1_a15
ddr1_a15
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
B3
ddr1_ba0
ddr1_ba0
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
A3
ddr1_ba1
ddr1_ba1
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
D2
ddr1_ba2
ddr1_ba2
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
F3
ddr1_cke0
ddr1_cke0
0
O
PD
drive 0 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
B2
ddr1_csn0
ddr1_csn0
0
O
PD
drive 1 (OFF) 0
1.35/1.5/1.8
vdds_ddr2
NA
LVCMOS
DDR
PUx/PDy
AA6
ddr1_d0
ddr1_d0
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA8
ddr1_d1
ddr1_d1
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y8
ddr1_d2
ddr1_d2
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA7
ddr1_d3
ddr1_d3
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AB4
ddr1_d4
ddr1_d4
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y5
ddr1_d5
ddr1_d5
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA4
ddr1_d6
ddr1_d6
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y6
ddr1_d7
ddr1_d7
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA18
ddr1_d8
ddr1_d8
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
Y21
ddr1_d9
ddr1_d9
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AA21
ddr1_d10
ddr1_d10
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
Y22
ddr1_d11
ddr1_d11
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AA19
ddr1_d12
ddr1_d12
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AB20
ddr1_d13
ddr1_d13
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
Y17
ddr1_d14
ddr1_d14
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AB18
ddr1_d15
ddr1_d15
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
DSIS [14]
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
13
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
AA3
ddr1_d16
ddr1_d16
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA2
ddr1_d17
ddr1_d17
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y3
ddr1_d18
ddr1_d18
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
V2
ddr1_d19
ddr1_d19
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
U3
ddr1_d20
ddr1_d20
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
V3
ddr1_d21
ddr1_d21
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y2
ddr1_d22
ddr1_d22
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y1
ddr1_d23
ddr1_d23
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
U21
ddr1_d24
ddr1_d24
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
T20
ddr1_d25
ddr1_d25
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
R21
ddr1_d26
ddr1_d26
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
U20
ddr1_d27
ddr1_d27
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
R22
ddr1_d28
ddr1_d28
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
V20
ddr1_d29
ddr1_d29
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
W22
ddr1_d30
ddr1_d30
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
U22
ddr1_d31
ddr1_d31
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AB8
ddr1_dqm0
ddr1_dqm0
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y18
ddr1_dqm1
ddr1_dqm1
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AB3
ddr1_dqm2
ddr1_dqm2
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
W21
ddr1_dqm3
ddr1_dqm3
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AA5
ddr1_dqs0
ddr1_dqs0
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA20
ddr1_dqs1
ddr1_dqs1
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
W1
ddr1_dqs2
ddr1_dqs2
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
14
Terminal Configuration and Functions
DSIS [14]
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
T21
ddr1_dqs3
ddr1_dqs3
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
AB5
ddr1_dqsn0
ddr1_dqsn0
0
IO
PU
PU
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y20
ddr1_dqsn1
ddr1_dqsn1
0
IO
PU
PU
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
W2
ddr1_dqsn2
ddr1_dqsn2
0
IO
PU
PU
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
T22
ddr1_dqsn3
ddr1_dqsn3
0
IO
PU
PU
0
1.35/1.5/1.8
vdds_ddr3
NA
LVCMOS
DDR
PUx/PDy
Y11
ddr1_ecc_d0
ddr1_ecc_d0
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA12
ddr1_ecc_d1
ddr1_ecc_d1
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA11
ddr1_ecc_d2
ddr1_ecc_d2
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
Y9
ddr1_ecc_d3
ddr1_ecc_d3
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA13
ddr1_ecc_d4
ddr1_ecc_d4
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AB11
ddr1_ecc_d5
ddr1_ecc_d5
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AA9
ddr1_ecc_d6
ddr1_ecc_d6
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
AB9
ddr1_ecc_d7
ddr1_ecc_d7
0
IO
PD
PD
0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
P2
ddr1_odt0
ddr1_odt0
0
O
PD
drive 0 (OFF) 0
1.35/1.5/1.8
vdds_ddr1
NA
LVCMOS
DDR
PUx/PDy
H1
emu0
emu0
0
IO
PU
PU
0
1.8/3.3
vddshv1
Yes
gpio4_28
14
IO
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
emu1
0
IO
PU
PU
0
1.8/3.3
vddshv1
Yes
gpio4_29
14
IO
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
gpmc_ad0
0
IO
OFF
OFF
15
1.8/3.3
vddshv2
Yes
1
I
Dual Voltage PU/PD
LVCMOS
0
rgmii1_rxd2
gpio1_14
14
IO
sysboot0
15
I
gpmc_ad1
0
IO
1
I
Dual Voltage PU/PD
LVCMOS
0
rgmii1_rxd1
gpio1_15
14
IO
sysboot1
15
I
H2
E8
A7
emu1
gpmc_ad0
gpmc_ad1
OFF
OFF
15
1.8/3.3
vddshv2
Yes
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
15
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
F8
B7
A6
F7
E7
C6
16
BALL NAME [2]
gpmc_ad2
gpmc_ad3
gpmc_ad4
gpmc_ad5
gpmc_ad6
gpmc_ad7
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
gpmc_ad2
0
IO
rgmii1_rxd0
1
I
gpio1_16
14
IO
sysboot2
15
I
gpmc_ad3
0
IO
qspi1_rtclk
1
I
gpio1_17
14
IO
sysboot3
15
I
gpmc_ad4
0
IO
cam_strobe
1
O
gpio1_18
14
IO
sysboot4
15
I
gpmc_ad5
0
IO
uart2_txd
2
O
timer6
3
IO
spi3_d1
4
IO
gpio1_19
14
IO
sysboot5
mcasp2_aclkx
15
I
mcasp2_aclkx
16
IO
gpmc_ad6
0
IO
uart2_rxd
2
I
timer5
3
IO
spi3_d0
4
IO
gpio1_20
14
IO
sysboot6
mcasp2_fsx
15
I
mcasp2_fsx
16
IO
gpmc_ad7
0
IO
cam_shutter
1
O
timer4
3
IO
spi3_sclk
4
IO
gpio1_21
14
IO
Driver off
mcasp2_ahclkx
15
I
mcasp2_ahclkx
16
O
BALL
RESET
STATE [6]
OFF
OFF
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
OFF
OFF
15
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
1.8/3.3
POWER [10]
vddshv2
vddshv2
HYS [11]
Yes
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
0
0
0
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
1
0
0
OFF
OFF
15
1.8/3.3
Terminal Configuration and Functions
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
B6
A5
D6
C5
B5
D7
BALL NAME [2]
gpmc_ad8
gpmc_ad9
gpmc_ad10
gpmc_ad11
gpmc_ad12
gpmc_ad13
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
gpmc_ad8
0
IO
timer7
3
IO
spi3_cs0
4
IO
gpio1_22
14
IO
sysboot8
mcasp2_aclkr
15
I
mcasp2_aclkr
16
IO
gpmc_ad9
0
IO
eCAP1_in_PWM1_out
3
IO
spi3_cs1
4
IO
gpio1_23
14
IO
sysboot9
mcasp2_fsr
15
I
mcasp2_fsr
16
IO
gpmc_ad10
0
IO
timer2
3
IO
gpio1_24
14
IO
sysboot10
mcasp2_axr0
15
I
mcasp2_axr0
16
IO
gpmc_ad11
0
IO
timer3
3
IO
gpio1_25
14
IO
sysboot11
mcasp2_axr1
15
I
mcasp2_axr1
16
IO
gpmc_ad12
0
IO
gpio1_26
14
IO
sysboot12
mcasp2_axr2
15
I
mcasp2_axr2
16
IO
gpmc_ad13
0
IO
rgmii1_rxc
1
I
gpio1_27
14
IO
sysboot13
mcasp2_axr3
15
I
mcasp2_axr3
16
IO
BALL
RESET
STATE [6]
OFF
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
OFF
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv2
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
1
0
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
0
1
0
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
0
0
0
0
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
17
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
B4
A4
F12
D12
E12
C12
18
BALL NAME [2]
gpmc_ad14
gpmc_ad15
gpmc_advn_ale
gpmc_ben0
gpmc_ben1
gpmc_clk
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
gpmc_ad14
0
IO
spi2_cs1
4
IO
gpio1_28
14
IO
sysboot14
mcasp2_axr4
15
I
mcasp2_axr4
16
IO
gpmc_ad15
0
IO
spi2_cs0
4
IO
gpio1_29
14
IO
sysboot15
mcasp2_axr5
15
I
mcasp2_axr5
16
IO
gpmc_advn_ale
0
O
rgmii1_txd2
1
O
ehrpwm1_tripzone_input
4
IO
clkout1
5
O
dma_evt4
6
I
gpio1_3
14
IO
Driver off
15
I
gpmc_ben0
0
O
rgmii1_txctl
1
O
ehrpwm1A
4
O
dma_evt2
6
I
gpio1_1
14
IO
Driver off
15
I
gpmc_ben1
0
O
rgmii1_txd3
1
O
ehrpwm1B
4
O
dma_evt3
6
I
gpio1_2
14
IO
Driver off
15
I
gpmc_clk
0
IO
rgmii1_txc
1
O
clkout0
5
O
dma_evt1
6
I
gpio1_0
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
OFF
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
OFF
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv2
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
1
0
OFF
OFF
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
1
0
PD
PD
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
0
PD
PD
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
PD
PD
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
PD
PD
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
Terminal Configuration and Functions
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
C10
E10
D10
A9
B9
F10
C8
A10
BALL NAME [2]
gpmc_cs0
gpmc_cs1
gpmc_cs2
gpmc_cs3
gpmc_cs4
gpmc_cs5
gpmc_cs6
gpmc_oen_ren
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
gpmc_cs0
0
O
rgmii1_rxctl
1
I
gpio1_6
14
IO
Driver off
15
I
gpmc_cs1
0
O
qspi1_cs0
1
IO
gpio1_7
14
IO
Driver off
15
I
gpmc_cs2
0
O
qspi1_d3
1
IO
gpio1_8
14
IO
Driver off
15
I
gpmc_cs3
0
O
qspi1_d2
1
IO
gpio1_9
14
IO
Driver off
15
I
gpmc_cs4
0
O
qspi1_d0
1
IO
gpio1_10
14
IO
Driver off
15
I
gpmc_cs5
0
O
qspi1_d1
1
IO
gpio1_11
14
IO
Driver off
15
I
gpmc_cs6
0
O
qspi1_sclk
1
O
gpio1_12
14
IO
Driver off
15
I
gpmc_oen_ren
0
O
rgmii1_txd1
1
O
ehrpwm1_synci
4
I
clkout2
5
O
gpio1_4
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
PU
PU
PU
PU
PU
PU
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PU
PU
PU
PU
PU
PU
15
15
15
15
15
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
POWER [10]
vddshv2
vddshv2
vddshv2
vddshv2
vddshv2
vddshv2
HYS [11]
Yes
Yes
Yes
Yes
Yes
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
PU
PU
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
PD
PD
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
1
0
0
0
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
19
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
D8
B10
BALL NAME [2]
gpmc_wait0
gpmc_wen
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
gpmc_wait0
0
I
rgmii1_rxd3
1
I
qspi1_rtclk
2
I
dma_evt4
6
I
gpio1_13
14
IO
Driver off
15
I
gpmc_wen
0
O
rgmii1_txd0
1
O
ehrpwm1_synco
4
O
gpio1_5
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
PU
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PU
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv2
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
1
0
0
PD
PD
15
1.8/3.3
vddshv2
Yes
Dual Voltage PU/PD
LVCMOS
L3
i2c1_scl
i2c1_scl
0
IO
OFF
OFF
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU
LVCMOS I2C
L4
i2c1_sda
i2c1_sda
0
IO
OFF
OFF
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU
LVCMOS I2C
L6
i2c2_scl
i2c2_scl
0
IO
OFF
OFF
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU
LVCMOS I2C
L5
i2c2_sda
i2c2_sda
0
IO
OFF
OFF
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU
LVCMOS I2C
W6
mcan_rx
mcan_rx
0
IO
PU
PU
15
1.8/3.3
vddshv6
Yes
cam_nreset
1
IO
Dual Voltage PU/PD
LVCMOS
vin2a_vsync0
2
I
spi1_cs3
3
IO
uart3_txd
4
O
gpmc_cs7
5
O
vin1b_vsync1
7
I
gpio4_12
14
IO
Driver off
15
I
mcan_tx
0
IO
vin2a_de0
1
I
vin2a_hsync0
2
I
spi1_cs2
3
IO
1
uart3_rxd
4
I
1
gpmc_wait1
6
I
1
vin1b_hsync1
7
I
0
vin1b_de1
8
I
0
gpio4_11
14
IO
Driver off
15
I
W7
20
mcan_tx
1
1
0
PU
PU
15
1.8/3.3
Terminal Configuration and Functions
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
1
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
B17
B19
BALL NAME [2]
mdio_d
mdio_mclk
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
mdio_d
0
IO
spi4_d0
4
IO
gpio3_18
14
IO
Driver off
15
I
mdio_mclk
0
O
spi4_d1
4
IO
gpio3_17
14
IO
BALL
RESET
STATE [6]
PU
PU
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PU
PU
15
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
1.8/3.3
POWER [10]
vddshv4
vddshv4
HYS [11]
Yes
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
Dual Voltage PU/PD
LVCMOS
1
Dual Voltage PU/PD
LVCMOS
1
1
0
0
Driver off
15
I
G5
nmin
nmin
0
I
PU
PU
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
G3
porz
porz
0
I
OFF
OFF
0
1.8/3.3
vddshv1
Yes
IHHV1833
G4
resetn
resetn
0
I
PU
PU
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
B18
rgmii0_rxc
rgmii0_rxc
0
I
PD
PD
15
1.8/3.3
vddshv4
Yes
cam_strobe
3
O
Dual Voltage PU/PD
LVCMOS
mmc_clk
5
IO
gpio3_25
14
IO
Driver off
15
I
rgmii0_rxctl
0
I
cam_shutter
3
O
mmc_cmd
5
IO
gpio3_26
14
IO
Driver off
15
I
rgmii0_txc
0
O
cam_strobe
3
O
spi4_sclk
4
IO
0
mmc_clk
5
IO
1
gpio3_19
14
IO
Driver off
15
I
rgmii0_txctl
0
O
cam_shutter
3
O
spi4_cs0
4
IO
1
mmc_cmd
5
IO
1
gpio3_20
14
IO
Driver off
15
I
C18
C16
C17
rgmii0_rxctl
rgmii0_txc
rgmii0_txctl
PU/PD
0
1
PD
PD
15
1.8/3.3
vddshv4
Yes
Dual Voltage PU/PD
LVCMOS
0
1
PD
PD
PD
PD
15
15
1.8/3.3
1.8/3.3
vddshv4
vddshv4
Yes
Yes
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
21
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
A20
C20
B20
A19
F17
E17
D16
E16
BALL NAME [2]
rgmii0_rxd0
rgmii0_rxd1
rgmii0_rxd2
rgmii0_rxd3
rgmii0_txd0
rgmii0_txd1
rgmii0_txd2
rgmii0_txd3
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
rgmii0_rxd0
0
I
mmc_dat3
5
IO
gpio3_30
14
IO
Driver off
15
I
rgmii0_rxd1
0
I
mmc_dat2
5
IO
gpio3_29
14
IO
Driver off
15
I
rgmii0_rxd2
0
I
mmc_dat1
5
IO
gpio3_28
14
IO
Driver off
15
I
rgmii0_rxd3
0
I
mmc_dat0
5
IO
gpio3_27
14
IO
Driver off
15
I
rgmii0_txd0
0
O
mmc_dat3
5
IO
gpio3_24
14
IO
Driver off
15
I
rgmii0_txd1
0
O
mmc_dat2
5
IO
gpio3_23
14
IO
Driver off
15
I
rgmii0_txd2
0
O
eCAP1_in_PWM1_out
3
IO
mmc_dat1
5
IO
gpio3_22
14
IO
Driver off
15
I
rgmii0_txd3
0
O
mmc_dat0
5
IO
gpio3_21
14
IO
BALL
RESET
STATE [6]
PD
PD
PD
PD
PD
PD
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
PD
PD
PD
PD
PD
PD
15
15
15
15
15
15
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
1.8/3.3
POWER [10]
vddshv4
vddshv4
vddshv4
vddshv4
vddshv4
vddshv4
vddshv4
HYS [11]
Yes
Yes
Yes
Yes
Yes
Yes
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
1
1
1
1
1
1
0
1
PD
PD
15
1.8/3.3
vddshv4
Yes
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
F4
rstoutn
rstoutn
0
O
PD
drive 1 (OFF) 0
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
J6
rtck
rtck
0
O
PU
vddshv1
Yes
14
IO
drive clk
(OFF)
1.8/3.3
gpio4_27
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
22
DSIS [14]
0
Terminal Configuration and Functions
1
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
M2
L1
R6
R5
T5
U6
L2
BALL NAME [2]
spi1_sclk
spi2_sclk
spi1_cs0
spi1_cs1
spi1_d0
spi1_d1
spi2_cs0
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
spi1_sclk
0
IO
uart3_rxd
1
I
gpio4_0
14
IO
Driver off
15
I
spi2_sclk
0
IO
uart3_rxd
1
I
ehrpwm1A
2
O
timer3
3
IO
gpio4_5
14
IO
Driver off
15
I
spi1_cs0
0
IO
uart3_txd
1
O
gpio4_3
14
IO
Driver off
15
I
spi1_cs1
0
IO
spi3_cs1
1
IO
timer6
4
IO
ehrpwm1_tripzone_input
7
IO
gpio4_4
14
IO
Driver off
15
I
spi1_d0
0
IO
uart3_rtsn
1
O
gpio4_2
14
IO
Driver off
15
I
spi1_d1
0
IO
uart3_ctsn
1
I
gpio4_1
14
IO
Driver off
15
I
spi2_cs0
0
IO
uart3_txd
1
O
ehrpwm1B
2
O
timer4
3
IO
gpio4_8
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
PD
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
PD
15
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
1.8/3.3
POWER [10]
vddshv1
vddshv1
HYS [11]
Yes
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
0
1
1
PU
PU
15
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
1
PU
PU
15
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
1
1
0
OFF
OFF
15
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
0
OFF
OFF
15
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
1
PU
PU
15
1.8/3.3
vddshv1
Yes
1
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
23
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
R7
N4
BALL NAME [2]
spi2_d0
spi2_d1
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
spi2_d0
0
IO
uart3_rtsn
1
O
timer1
3
IO
gpio4_7
14
IO
sysboot7
15
I
spi2_d1
0
IO
uart3_ctsn
1
I
timer5
3
IO
eCAP1_in_PWM1_out
7
IO
gpio4_6
14
IO
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
OFF
OFF
15
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
0
OFF
OFF
15
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
0
Driver off
15
I
tclk
tclk
0
I
PU
PU
0
1.8/3.3
vddshv1
Yes
IQ1833
J1
tdi
tdi
0
I
PU
PU
0
1.8/3.3
vddshv1
Yes
gpio4_25
14
IO
Dual Voltage PU/PD
LVCMOS
Driver off
15
I
tdo
0
O
PU
PU
0
1.8/3.3
vddshv1
Yes
gpio4_26
14
IO
Dual Voltage PU/PD
LVCMOS
tdo
1
0
J2
J4
DSIS [14]
PU/PD
Driver off
15
I
J3
tms
tms
0
IO
OFF
OFF
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
J5
trstn
trstn
0
I
PD
PD
0
1.8/3.3
vddshv1
Yes
Dual Voltage PU/PD
LVCMOS
F14
uart1_ctsn
uart1_ctsn
0
I
PU
PU
15
1.8/3.3
vddshv3
Yes
xref_clk1
1
I
Dual Voltage PU/PD
LVCMOS
uart3_rxd
2
I
gpmc_a16
3
O
spi4_sclk
4
IO
0
spi1_cs2
5
IO
1
timer3
6
IO
ehrpwm1_synci
7
I
clkout0
8
O
vin2a_hsync0
9
I
gpmc_a12
10
O
gpmc_clk
11
IO
dcan1_tx
12
IO
gpio4_15
14
IO
Driver off
15
I
24
Terminal Configuration and Functions
1
1
0
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
C14
F13
E14
F15
BALL NAME [2]
uart1_rtsn
uart1_rxd
uart1_txd
uart2_ctsn
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PU
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PU
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv3
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
uart1_rtsn
0
O
uart3_txd
2
O
Dual Voltage PU/PD
LVCMOS
gpmc_a17
3
O
spi4_cs0
4
IO
1
spi1_cs3
5
IO
1
timer4
6
IO
ehrpwm1_synco
7
O
qspi1_rtclk
8
I
vin2a_vsync0
9
I
gpmc_a13
10
O
dcan1_rx
12
IO
gpio4_16
14
IO
Driver off
15
I
uart1_rxd
0
I
spi4_d1
4
IO
qspi1_rtclk
5
I
gpmc_a12
10
O
mcan_tx
12
IO
gpio4_13
14
IO
Driver off
15
I
uart1_txd
0
O
spi4_d0
4
IO
gpmc_a13
10
O
mcan_rx
12
IO
gpio4_14
14
IO
Driver off
15
I
uart2_ctsn
0
I
xref_clk1
2
I
gpmc_a18
3
O
spi3_sclk
4
IO
0
qspi1_cs1
5
IO
1
timer7
6
IO
vin2a_hsync0
9
I
gpmc_clk
10
IO
0
mcan_tx
12
IO
1
gpio4_19
14
IO
Driver off
15
I
0
PU
PU
15
1.8/3.3
vddshv3
Yes
Dual Voltage PU/PD
LVCMOS
1
0
0
1
PU
PU
15
1.8/3.3
vddshv3
Yes
Dual Voltage PU/PD
LVCMOS
0
1
OFF
OFF
15
1.8/3.3
vddshv3
Yes
Dual Voltage PU/PD
LVCMOS
1
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
25
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
F16
BALL NAME [2]
uart2_rtsn
D14
uart2_rxd
D15
uart2_txd
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
uart2_rtsn
0
O
eCAP1_in_PWM1_out
1
IO
gpmc_a19
3
O
spi3_cs0
4
IO
timer8
6
IO
vin2a_vsync0
9
I
mcan_rx
12
IO
gpio4_20
14
IO
Driver off
15
I
uart2_rxd
0
I
spi3_d1
4
IO
timer1
6
IO
ehrpwm1A
7
O
gpmc_clk
10
IO
gpmc_a12
11
O
dcan1_tx
12
IO
gpio4_17
14
IO
Driver off
15
I
uart2_txd
0
O
spi3_d0
4
IO
timer2
6
IO
ehrpwm1B
7
O
gpmc_a13
11
O
dcan1_rx
12
IO
gpio4_18
14
IO
Driver off
15
I
H12, H13, H7,
J10, J11, J15,
K12, L12, L15,
N12, N16, P10,
P14
vdd
vdd
PWR
P22
vdda_adc
vdda_adc
PWR
A14
vdda_csi
vdda_csi
PWR
U19
vdda_dac
vdda_dac
PWR
N8
vdda_ddr_dsp
vdda_ddr_dsp
PWR
M8
vdda_gmac_core
vdda_gmac_core
PWR
E21
vdda_osc
vdda_osc
PWR
H14
vdda_per
vdda_per
PWR
G12, J7, L16,
P13, T11
vdds18v
vdds18v
PWR
26
BALL
RESET
STATE [6]
PU
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PU
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv3
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
1
1
PU
PU
15
1.8/3.3
vddshv3
Yes
Dual Voltage PU/PD
LVCMOS
1
0
0
PU
PU
15
1.8/3.3
Terminal Configuration and Functions
vddshv3
Yes
Dual Voltage PU/PD
LVCMOS
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
P7, T9
vdds18v_ddr1
vdds18v_ddr1
PWR
G7
vdds18v_ddr2
vdds18v_ddr2
PWR
T16, V21
vdds18v_ddr3
vdds18v_ddr3
PWR
K2, K7, L7, M7
vddshv1
vddshv1
PWR
B8, G11, G8, G9
vddshv2
vddshv2
PWR
G14
vddshv3
vddshv3
PWR
A18, E20
vddshv4
vddshv4
PWR
H17, J16, J21
vddshv5
vddshv5
PWR
AA16, T10, T12,
T13
vddshv6
vddshv6
PWR
AA1, AB6, R1, T7, vdds_ddr1
T8
vdds_ddr1
PWR
C2, E2, G6
vdds_ddr2
vdds_ddr2
PWR
AA22, AB19, T15 vdds_ddr3
vdds_ddr3
PWR
K8, L8, M9, P11,
P12, P8, P9
vdd_dspeve
vdd_dspeve
PWR
F22
vin1a_clk0
vin1a_clk0
0
I
cpi_pclk
1
I
clkout0
4
O
gpio1_30
14
IO
Driver off
mcasp3_aclkx
15
I
mcasp3_aclkx
16
IO
vin1a_d0
0
I
cpi_data2
1
I
gpio2_3
14
IO
Driver off
mcasp3_axr1
15
I
mcasp3_axr1
16
IO
vin1a_d1
0
I
cpi_data3
1
I
gpio2_4
14
IO
Driver off
mcasp3_axr2
15
I
mcasp3_axr2
16
IO
G18
G21
vin1a_d0
vin1a_d1
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv5
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
27
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
G22
H18
H20
H19
H22
H21
28
BALL NAME [2]
vin1a_d2
vin1a_d3
vin1a_d4
vin1a_d5
vin1a_d6
vin1a_d7
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
vin1a_d2
0
I
cpi_data4
1
I
gpio2_5
14
IO
Driver off
mcasp3_axr3
15
I
mcasp3_axr3
16
IO
vin1a_d3
0
I
cpi_data5
1
I
gpio2_6
14
IO
Driver off
mcasp3_axr4
15
I
mcasp3_axr4
16
IO
vin1a_d4
0
I
cpi_data6
1
I
gpio2_7
14
IO
Driver off
mcasp3_axr5
15
I
mcasp3_axr5
16
IO
vin1a_d5
0
I
cpi_data7
1
I
gpio2_8
14
IO
xref_clk2
mcasp3_ahclkx
15
I
mcasp3_ahclkx
16
O
vin1a_d6
0
I
cpi_data8
1
I
gpio2_9
14
IO
Driver off
mcasp3_fsx
15
I
mcasp3_fsx
16
IO
vin1a_d7
0
I
cpi_data9
1
I
gpio2_10
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv5
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
PD
PD
15
15
1.8/3.3
1.8/3.3
vddshv5
vddshv5
Yes
Yes
Dual Voltage PU/PD
LVCMOS
0
Dual Voltage PU/PD
LVCMOS
0
0
0
0
PD
PD
15
1.8/3.3
Terminal Configuration and Functions
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
J17
K22
K21
K18
K17
BALL NAME [2]
vin1a_d8
vin1a_d9
vin1a_d10
vin1a_d11
vin1a_d12
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
vin1a_d8
0
I
cpi_data10
1
I
vin1b_d0
2
I
gpmc_a8
3
O
sys_nirq2
7
I
gpio2_11
14
IO
Driver off
15
I
vin1a_d9
0
I
cpi_data11
1
I
vin1b_d1
2
I
gpmc_a9
3
O
sys_nirq1
7
I
gpio2_12
14
IO
Driver off
15
I
vin1a_d10
0
I
cpi_data12
1
I
vin1b_d2
2
I
gpmc_a10
3
O
sys_nirq2
7
I
gpio2_13
14
IO
Driver off
15
I
vin1a_d11
0
I
cpi_data13
1
I
vin1b_d3
2
I
gpmc_a11
3
O
sys_nirq1
7
I
gpio2_14
14
IO
Driver off
15
I
vin1a_d12
0
I
cpi_data14
1
I
vin1b_d4
2
I
gpmc_a12
3
O
dma_evt1
6
I
gpio2_15
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv5
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
29
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
K19
K20
L21
F21
F20
30
BALL NAME [2]
vin1a_d13
vin1a_d14
vin1a_d15
vin1a_de0
vin1a_fld0
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
vin1a_d13
0
I
cpi_wen
1
I
vin1b_d5
2
I
gpmc_a13
3
O
dma_evt2
6
I
gpio2_16
14
IO
Driver off
15
I
vin1a_d14
0
I
cpi_fid
1
IO
vin1b_d6
2
I
gpmc_a14
3
O
gpio2_17
14
IO
Driver off
15
I
vin1a_d15
0
I
cpi_data15
1
I
vin1b_d7
2
I
gpmc_a15
3
O
gpio2_18
14
IO
Driver off
15
I
vin1a_de0
0
I
cpi_hsync
1
IO
vin1b_clk1
2
I
clkout1
4
O
gpio1_31
14
IO
Driver off
atl_clk1
15
I
atl_clk1
16
O
vin1a_fld0
0
I
cpi_vsync
1
IO
vin2b_clk1
2
I
clkout2
4
O
gpio2_0
14
IO
Driver off
mcasp3_aclkr
15
I
mcasp3_aclkr
16
IO
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv5
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
Terminal Configuration and Functions
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
F19
G19
L22
M17
M18
AB17
BALL NAME [2]
vin1a_hsync0
vin1a_vsync0
vin2a_clk0
vin2a_de0
vin2a_fld0
vout1_clk
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv5
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
vin1a_hsync0
0
I
cpi_data0
1
I
0
vin1a_de0
2
I
gpio2_1
14
IO
Driver off
mcasp3_fsr
15
I
mcasp3_fsr
16
IO
vin1a_vsync0
0
I
cpi_data1
1
I
gpio2_2
14
IO
Driver off
mcasp3_axr0
15
I
mcasp3_axr0
16
IO
vin2a_clk0
0
I
gpio2_19
14
IO
Driver off
15
I
vin2a_de0
0
I
cam_strobe
1
O
vin2b_hsync1
2
I
0
vin2b_de1
5
I
0
gpio4_21
14
IO
Driver off
15
I
vin2a_fld0
0
I
cam_shutter
1
O
vin2b_vsync1
2
I
gpio4_22
14
IO
Driver off
15
I
vout1_clk
0
O
vin1a_d12
2
I
clkout0
4
O
vin2a_clk0
9
I
gpio2_20
14
IO
Driver off
15
I
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
PD
PD
15
1.8/3.3
vddshv5
Yes
Dual Voltage PU/PD
LVCMOS
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
31
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
U17
W17
AA17
U16
W16
V16
32
BALL NAME [2]
vout1_de
vout1_fld
vout1_hsync
vout1_vsync
vout1_d0
vout1_d1
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
vout1_de
0
O
mcasp1_aclkx
1
IO
vin1a_d13
2
I
clkout1
4
O
gpio2_21
14
IO
Driver off
15
I
vout1_fld
0
O
mcasp1_fsx
1
IO
vin1a_d14
2
I
clkout2
4
O
gpio2_22
14
IO
Driver off
15
I
vout1_hsync
0
O
mcasp1_aclkr
1
IO
vin1a_d15
2
I
vin2a_de0
9
I
gpio2_23
14
IO
Driver off
15
I
vout1_vsync
0
O
mcasp1_fsr
1
IO
vin2a_fld0
9
I
gpio2_24
14
IO
Driver off
15
I
vout1_d0
0
O
mcasp1_axr0
1
IO
mmc_clk
5
IO
gpio2_25
14
IO
Driver off
15
I
vout1_d1
0
O
mcasp1_axr1
1
IO
mmc_cmd
5
IO
gpio2_26
14
IO
Driver off
15
I
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv6
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
PD
PD
PD
PD
15
15
1.8/3.3
1.8/3.3
vddshv6
vddshv6
Yes
Yes
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
0
0
1
PD
PD
15
1.8/3.3
Terminal Configuration and Functions
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
1
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
U15
V15
Y15
W15
AA15
BALL NAME [2]
vout1_d2
vout1_d3
vout1_d4
vout1_d5
vout1_d6
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
IO
mcasp1_axr8
4
IO
0
mmc_dat0
5
IO
1
gpio2_27
14
IO
Driver off
15
I
vout1_d3
0
O
mcasp1_axr3
1
IO
mcasp1_axr9
4
IO
0
mmc_dat1
5
IO
1
gpio2_28
14
IO
Driver off
15
I
vout1_d4
0
O
mcasp1_axr4
1
IO
mcasp1_axr10
4
IO
0
mmc_dat2
5
IO
1
gpio2_29
14
IO
Driver off
15
I
vout1_d5
0
O
mcasp1_axr5
1
IO
mcasp1_axr11
4
IO
0
mmc_dat3
5
IO
1
vin2a_clk0
9
I
gpio2_30
14
IO
Driver off
15
I
vout1_d6
0
O
mcasp1_axr6
1
IO
mcasp1_axr12
4
IO
emu2
6
O
vin2a_de0
9
I
gpio2_31
14
IO
Driver off
15
I
PD
PD
PD
PD
PD
PD
15
15
15
1.8/3.3
1.8/3.3
1.8/3.3
vddshv6
vddshv6
vddshv6
Yes
Yes
Yes
Yes
Dual Voltage PU/PD
LVCMOS
DSIS [14]
O
vddshv6
Yes
PULL
UP/DOWN
TYPE [13]
1
1.8/3.3
vddshv6
BUFFER
TYPE [12]
0
15
1.8/3.3
HYS [11]
mcasp1_axr2
PD
15
POWER [10]
vout1_d2
PD
PD
I/O
VOLTAGE
VALUE [9]
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
Dual Voltage PU/PD
LVCMOS
0
0
0
0
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
33
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
AB15
AA14
AB14
U13
V13
34
BALL NAME [2]
vout1_d7
vout1_d8
vout1_d9
vout1_d10
vout1_d11
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
IO
eCAP1_in_PWM1_out
3
IO
0
mcasp1_axr13
4
IO
0
emu3
6
O
vin2a_fld0
9
I
gpio3_0
14
IO
Driver off
15
I
vout1_d8
0
O
mcasp1_axr8
1
IO
vin2a_d0
2
I
gpmc_a20
3
O
emu4
6
O
gpio3_1
14
IO
Driver off
15
I
vout1_d9
0
O
mcasp1_axr9
1
IO
vin2a_d1
2
I
gpmc_a21
3
O
emu5
6
O
gpio3_2
14
IO
Driver off
15
I
vout1_d10
0
O
mcasp1_axr10
1
IO
vin2a_d2
2
I
gpmc_a22
3
O
emu6
6
O
gpio3_3
14
IO
Driver off
15
I
vout1_d11
0
O
mcasp1_axr11
1
IO
vin2a_d3
2
I
gpmc_a23
3
O
emu7
6
O
gpio3_4
14
IO
Driver off
15
I
Yes
Dual Voltage PU/PD
LVCMOS
DSIS [14]
O
vddshv6
Yes
PULL
UP/DOWN
TYPE [13]
1
1.8/3.3
vddshv6
BUFFER
TYPE [12]
0
15
1.8/3.3
HYS [11]
mcasp1_axr7
PD
15
POWER [10]
vout1_d7
PD
PD
I/O
VOLTAGE
VALUE [9]
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
PD
PD
15
1.8/3.3
Terminal Configuration and Functions
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
Y13
W13
U11
V11
BALL NAME [2]
vout1_d12
vout1_d13
vout1_d14
vout1_d15
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
vout1_d12
0
O
mcasp1_axr12
1
IO
vin2a_d4
2
I
gpmc_a24
3
O
emu8
6
O
gpio3_5
14
IO
Driver off
mcasp2_ahclkx
15
I
mcasp2_ahclkx
16
O
vout1_d13
0
O
mcasp1_axr13
1
IO
vin2a_d5
2
I
gpmc_a25
3
O
emu9
6
O
gpio3_6
14
IO
Driver off
mcasp2_aclkr
15
I
mcasp2_aclkr
16
IO
vout1_d14
0
O
mcasp1_axr14
1
IO
vin2a_d6
2
I
gpmc_a26
3
O
emu10
6
O
gpio3_7
14
IO
Driver off
mcasp2_aclkx
15
I
mcasp2_aclkx
16
IO
vout1_d15
0
O
mcasp1_axr15
1
IO
vin2a_d7
2
I
gpmc_a27
3
O
emu11
6
O
gpio3_8
14
IO
Driver off
mcasp2_fsx
15
I
mcasp2_fsx
16
IO
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv6
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
35
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
U9
W11
V9
36
BALL NAME [2]
vout1_d16
vout1_d17
vout1_d18
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv6
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
vout1_d16
0
O
mcasp1_ahclkx
1
O
Dual Voltage PU/PD
LVCMOS
vin2a_d8
2
I
gpmc_a0
3
O
mcasp1_axr8
4
IO
0
vin2b_d0
5
I
0
emu12
6
O
gpio3_9
14
IO
Driver off
atl_clk0
15
I
atl_clk0
16
O
vout1_d17
0
O
vin2a_d9
2
I
gpmc_a1
3
O
mcasp1_axr9
4
IO
0
vin2b_d1
5
I
0
emu13
6
O
gpio3_10
14
IO
Driver off
mcasp2_fsr
15
I
mcasp2_fsr
16
IO
vout1_d18
0
O
vin2a_d10
2
I
gpmc_a2
3
O
mcasp1_axr10
4
IO
0
vin2b_d2
5
I
0
emu14
6
O
gpio3_11
14
IO
Driver off
mcasp2_axr0
15
I
mcasp2_axr0
16
IO
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
PD
PD
15
1.8/3.3
Terminal Configuration and Functions
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
W9
U8
W8
BALL NAME [2]
vout1_d19
vout1_d20
vout1_d21
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv6
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
DSIS [14]
vout1_d19
0
O
vin2a_d11
2
I
gpmc_a3
3
O
mcasp1_axr11
4
IO
0
vin2b_d3
5
I
0
emu15
6
O
gpio3_12
14
IO
Driver off
mcasp2_axr1
15
I
mcasp2_axr1
16
IO
vout1_d20
0
O
vin2a_d12
2
I
gpmc_a4
3
O
mcasp1_axr12
4
IO
0
vin2b_d4
5
I
0
emu16
6
O
gpio3_13
14
IO
Driver off
mcasp2_axr2
15
I
mcasp2_axr2
16
IO
vout1_d21
0
O
vin2a_d13
2
I
gpmc_a5
3
O
mcasp1_axr13
4
IO
0
vin2b_d5
5
I
0
emu17
6
O
gpio3_14
14
IO
Driver off
mcasp2_axr3
15
I
mcasp2_axr3
16
IO
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
37
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
U7
V7
BALL NAME [2]
vout1_d22
vout1_d23
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
PD
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
PD
15
I/O
VOLTAGE
VALUE [9]
1.8/3.3
POWER [10]
vddshv6
HYS [11]
Yes
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
Dual Voltage PU/PD
LVCMOS
vout1_d22
0
O
vin2a_d14
2
I
gpmc_a6
3
O
mcasp1_axr14
4
IO
0
vin2b_d6
5
I
0
emu18
6
O
gpio3_15
14
IO
Driver off
mcasp2_axr4
15
I
mcasp2_axr4
16
IO
vout1_d23
0
O
vin2a_d15
2
I
gpmc_a7
3
O
mcasp1_axr15
4
IO
0
vin2b_d7
5
I
0
emu19
6
O
gpio3_16
14
IO
Driver off
mcasp2_axr5
15
I
mcasp2_axr5
16
IO
0
0
PD
PD
15
1.8/3.3
vddshv6
Yes
Dual Voltage PU/PD
LVCMOS
0
0
A1, A17, A22, A8, vss
AB1, AB12, AB16,
AB2, AB21, AB22,
AB7, B22, E1,
G10, G16, H10,
H11, H15, H16,
H8, H9, J22, K1,
K10, K11, K13,
K14, K15, K16,
K9, M10, M11,
M12, M13, M16,
N10, N7, P1, P15,
P16, R12, R16,
R9, T14, V22
vss
GND
P21
vssa_adc
vssa_adc
GND
B14
vssa_csi
vssa_csi
GND
T19
vssa_dac
vssa_dac
GND
D21
vssa_osc0
vssa_osc0
GND
C22
vssa_osc1
vssa_osc1
E22
xi_osc0
xi_osc0
0
I
0
1.8
vdda_osc
Yes
LVCMOS
Analog
PD
B21
xi_osc1
xi_osc1
0
I
0
1.8
vdda_osc
Yes
LVCMOS
Analog
PD
38
DSIS [14]
GND
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-1. Pin Attributes(1) (continued)
BALL NUMBER
[1]
BALL NAME [2]
SIGNAL NAME [3]
MUXMODE
[4]
TYPE [5]
BALL
RESET
STATE [6]
BALL
BALL
RESET REL.
RESET REL.
MUXMODE
STATE [7]
[8]
I/O
VOLTAGE
VALUE [9]
POWER [10]
HYS [11]
BUFFER
TYPE [12]
PULL
UP/DOWN
TYPE [13]
DSIS [14]
D22
xo_osc0
xo_osc0
0
O
0
1.8
vdda_osc
Yes
LVCMOS
Analog
PD
C21
xo_osc1
xo_osc1
0
A
0
1.8
vdda_osc
Yes
LVCMOS
Analog
PD
M1
xref_clk0
xref_clk0
0
I
15
1.8/3.3
vddshv1
Yes
clkout0
1
O
Dual Voltage PU/PD
LVCMOS
spi3_cs0
4
IO
1
spi2_cs1
5
IO
1
spi1_cs0
6
IO
1
spi1_cs1
7
IO
1
gpio3_31
14
IO
Driver off
15
I
PD
PD
(1) NA in this table stands for Not Applicable.
(2) For more information on recommended operating conditions, see Section 5.4, Recommended Operating Conditions.
(3) The pullup or pulldown block strength is equal to: minimum = 50 μA, typical = 100 μA, maximum = 250 μA.
(4) The output impedance settings of this IO cell are programmable; by default, the value is DS[1:0] = 10, this means 40 Ω. For more information on DS[1:0] register configuration, see the
Device TRM.
(5) In PUx / PDy, x and y = 60 to 300 μA.
The output impedance settings (or drive strengths) of this IO are programmable (60 Ω, 80 Ω, 120 Ω) depending on the values of the I[2:0] registers.
4.3
Signal Descriptions
Many signals are available on multiple pins, according to the software configuration of the pin multiplexing options.
1. SIGNAL NAME: The name of the signal passing through the pin.
NOTE
The subsystem multiplexing signals are not described in Table 4-1 and Table 4-29.
2. DESCRIPTION: Description of the signal
3. TYPE: Signal direction and type:
– I = Input
– O = Output
– IO = Input or output
– D = Open Drain
– DS = Differential
– A = Analog
– PWR = Power
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
39
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
– GND = Ground
4. BALL: Associated ball(s) bottom
NOTE
For more information, see the Control Module / Control Module Register Manual section of the device TRM.
4.3.1
VIP
NOTE
For more information, see the Video Input Port (VIP) section of the device TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching Characteristics are only valid for VIN1 and
VIN2 if signals within a single IOSET are used. The IOSETs are defined in Table 5-28 and Table 5-29.
Table 4-2. VIP Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
Video Input 1 Port A Clock input. Input clock for 8-bit 16-bit or 24-bit Port A video capture. Input data is sampled on
the CLK0 edge.
I
F22
vin1a_d0
Video Input 1 Port A Data input
I
G18
vin1a_d1
Video Input 1 Port A Data input
I
G21
vin1a_d2
Video Input 1 Port A Data input
I
G22
vin1a_d3
Video Input 1 Port A Data input
I
H18
vin1a_d4
Video Input 1 Port A Data input
I
H20
vin1a_d5
Video Input 1 Port A Data input
I
H19
vin1a_d6
Video Input 1 Port A Data input
I
H22
vin1a_d7
Video Input 1 Port A Data input
I
H21
vin1a_d8
Video Input 1 Port A Data input
I
J17
vin1a_d9
Video Input 1 Port A Data input
I
K22
vin1a_d10
Video Input 1 Port A Data input
I
K21
vin1a_d11
Video Input 1 Port A Data input
I
K18
vin1a_d12
Video Input 1 Port A Data input
I
AB17, K17
Video Input 1
vin1a_clk0
40
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-2. VIP Signal Descriptions (continued)
SIGNAL NAME
DESCRIPTION
TYPE
BALL
vin1a_d13
Video Input 1 Port A Data input
I
K19, U17
vin1a_d14
Video Input 1 Port A Data input
I
K20, W17
vin1a_d15
Video Input 1 Port A Data input
I
AA17, L21
vin1a_de0
Video Input 1 Port A Field ID input
I
F19, F21
vin1a_fld0
Video Input 1 Port A Field ID input
I
F20
vin1a_hsync0
Video Input 1 Port A Horizontal Sync input
I
F19
vin1a_vsync0
Video Input 1 Port A Vertical Sync input
I
G19
vin1b_clk1
Video Input 1 Port B Clock input
I
F21
vin1b_d0
Video Input 1 Port B Data input
I
J17
vin1b_d1
Video Input 1 Port B Data input
I
K22
vin1b_d2
Video Input 1 Port B Data input
I
K21
vin1b_d3
Video Input 1 Port B Data input
I
K18
vin1b_d4
Video Input 1 Port B Data input
I
K17
vin1b_d5
Video Input 1 Port B Data input
I
K19
vin1b_d6
Video Input 1 Port B Data input
I
K20
vin1b_d7
Video Input 1 Port B Data input
I
L21
vin1b_de1
Video Input 1 Port B Field ID input
I
W7
vin1b_hsync1
Video Input 1 Port B Horizontal Sync input
I
W7
vin1b_vsync1
Video Input 1 Port B Vertical Sync input
I
W6
vin2a_clk0
Video Input 2 Port A Clock input
I
AB17, L22, W15
vin2a_d0
Video Input 2 Port A Data input
I
AA14
vin2a_d1
Video Input 2 Port A Data input
I
AB14
vin2a_d2
Video Input 2 Port A Data input
I
U13
vin2a_d3
Video Input 2 Port A Data input
I
V13
vin2a_d4
Video Input 2 Port A Data input
I
Y13
vin2a_d5
Video Input 2 Port A Data input
I
W13
vin2a_d6
Video Input 2 Port A Data input
I
U11
vin2a_d7
Video Input 2 Port A Data input
I
V11
vin2a_d8
Video Input 2 Port A Data input
I
U9
W11
Video Input 2
vin2a_d9
Video Input 2 Port A Data input
I
vin2a_d10
Video Input 2 Port A Data input
I
V9
vin2a_d11
Video Input 2 Port A Data input
I
W9
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
41
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-2. VIP Signal Descriptions (continued)
SIGNAL NAME
42
DESCRIPTION
TYPE
BALL
vin2a_d12
Video Input 2 Port A Data input
I
U8
vin2a_d13
Video Input 2 Port A Data input
I
W8
vin2a_d14
Video Input 2 Port A Data input
I
U7
vin2a_d15
Video Input 2 Port A Data input
I
V7
vin2a_de0
Video Input 2 Port A Field ID input
I
AA15, AA17, M17, W7
vin2a_fld0
Video Input 2 Port A Field ID input
I
AB15, M18, U16
vin2a_hsync0
Video Input 2 Port A Horizontal Sync input
I
F14, F15, W7
vin2a_vsync0
Video Input 2 Port A Vertical Sync input
I
C14, F16, W6
vin2b_clk1
Video Input 2 Port B Clock input
I
F20
vin2b_d0
Video Input 2 Port B Data input
I
U9
vin2b_d1
Video Input 2 Port B Data input
I
W11
vin2b_d2
Video Input 2 Port B Data input
I
V9
vin2b_d3
Video Input 2 Port B Data input
I
W9
vin2b_d4
Video Input 2 Port B Data input
I
U8
vin2b_d5
Video Input 2 Port B Data input
I
W8
vin2b_d6
Video Input 2 Port B Data input
I
U7
vin2b_d7
Video Input 2 Port B Data input
I
V7
vin2b_de1
Video Input 2 Port B Field ID input
I
M17
vin2b_hsync1
Video Input 2 Port B Horizontal Sync input
I
M17
vin2b_vsync1
Video Input 2 Port B Vertical Sync input
I
M18
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
4.3.2
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DSS
Table 4-3. DSS Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
DPI Video Output 1
vout1_clk
Video Output 1 Clock output
O
AB17
vout1_d0
Video Output 1 Data output
O
W16
vout1_d1
Video Output 1 Data output
O
V16
vout1_d2
Video Output 1 Data output
O
U15
vout1_d3
Video Output 1 Data output
O
V15
vout1_d4
Video Output 1 Data output
O
Y15
vout1_d5
Video Output 1 Data output
O
W15
vout1_d6
Video Output 1 Data output
O
AA15
vout1_d7
Video Output 1 Data output
O
AB15
vout1_d8
Video Output 1 Data output
O
AA14
vout1_d9
Video Output 1 Data output
O
AB14
vout1_d10
Video Output 1 Data output
O
U13
vout1_d11
Video Output 1 Data output
O
V13
vout1_d12
Video Output 1 Data output
O
Y13
vout1_d13
Video Output 1 Data output
O
W13
vout1_d14
Video Output 1 Data output
O
U11
vout1_d15
Video Output 1 Data output
O
V11
vout1_d16
Video Output 1 Data output
O
U9
vout1_d17
Video Output 1 Data output
O
W11
vout1_d18
Video Output 1 Data output
O
V9
vout1_d19
Video Output 1 Data output
O
W9
vout1_d20
Video Output 1 Data output
O
U8
vout1_d21
Video Output 1 Data output
O
W8
vout1_d22
Video Output 1 Data output
O
U7
vout1_d23
Video Output 1 Data output
O
V7
vout1_de
Video Output 1 Data Enable output
O
U17
vout1_fld
Video Output 1 Field ID output.This signal is not used for embedded sync modes.
O
W17
vout1_hsync
Video Output 1 Horizontal Sync output.This signal is not used for embedded sync
modes.
O
AA17
vout1_vsync
Video Output 1 Vertical Sync output.This signal is not used for embedded sync modes.
O
U16
4.3.3
SD_DAC
NOTE
For more information, see theVideo Encoder / Video Encoder Overview of the device TRM.
Table 4-4. CVIDEO SD_DAC Signal Descriptions
SIGNAL NAME
cvideo_tvout
DESCRIPTION
TYPE
BALL
SD_DAC TV analog composite output
A
T17
cvideo_vfb
SD_DAC input feedback thru resistor to out
A
P17
cvideo_rset
SD_DAC input reference current resistor setting
A
T18
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
43
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
4.3.4
www.ti.com
ADC
NOTE
For more information, see the ADC / ADC Overview of the device TRM.
Table 4-5. ADC Signal Descriptions
SIGNAL NAME
TYPE
BALL
adc_in0
ADC analog channel input 0
A
M19
adc_in1
ADC analog channel input 1
A
M20
adc_in2
ADC analog channel input 2
A
M21
adc_in3
ADC analog channel input 3
A
M22
adc_in4
ADC analog channel input 4
A
N22
adc_in5
ADC analog channel input 5
A
N21
adc_in6
ADC analog channel input 6
A
P19
adc_in7
ADC analog channel input 7
A
P18
ADC positive reference voltage
A
P20
adc_vrefp
4.3.5
DESCRIPTION
Camera Control
NOTE
Camera Control is not available on this device, and must be left unconnected.
NOTE
For more information, see the Imaging Subsystem (ISS) section of the device TRM.
Table 4-6. Camera Control Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
cam_strobe
Camera flash activation trigger
O
A6, B18, C16, M17
cam_shutter
Camera mechanical shutter control
O
C6, C18, C17, M18
cam_nreset
Camera sensor reset
IO
W6
TYPE
BALL
I
F22
4.3.6
CPI
NOTE
CPI is not available on this device, and must be left unconnected.
Table 4-7. CPI Signal Descriptions
SIGNAL NAME
cpi_pclk
44
DESCRIPTION
Camera pixel clock
cpi_hsync
Camera horizontal synchonization
IO
F21
cpi_vsync
Camera vertical synchonization
IO
F20
cpi_data0
Camera parallel data 0
I
F19
cpi_data1
Camera parallel data 1
I
G19
cpi_data2
Camera parallel data 2
I
G18
cpi_data3
Camera parallel data 3
I
G21
cpi_data4
Camera parallel data 4
I
G22
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-7. CPI Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
cpi_data5
DESCRIPTION
Camera parallel data 5
I
H18
cpi_data6
Camera parallel data 6
I
H20
cpi_data7
Camera parallel data 7
I
H19
cpi_data8
Camera parallel data 8
I
H22
H21
cpi_data9
Camera parallel data 9
I
cpi_data10
Camera parallel data 10
I
J17
cpi_data11
Camera parallel data 11
I
K22
cpi_data12
Camera parallel data 12
I
K21
cpi_data13
Camera parallel data 13
I
K18
cpi_data14
Camera parallel data 14
I
K17
cpi_data15
Camera parallel data 15
I
L21
I
K19
IO
K20
cpi_wen
cpi_fid
Camera parallel external write enable
Camera parallel field identification for interlaced sensors (i mode)
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
45
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
4.3.7
www.ti.com
CSI2
NOTE
ISS is not available on this device, and must be left unconnected.
NOTE
For more information, see the Imaging Subsystem of the device TRM.
Table 4-8. CSI 2 Signal Descriptions
SIGNAL NAME
TYPE
BALL
csi2_0_dx0
Serial Differential data/clock positive input - lane 0 (position 1)
I
A11
csi2_0_dy0
Serial Differential data/clock negative input - lane 0 (position 1)
I
B11
csi2_0_dx1
Serial Differential data/clock positive input - lane 1 (position 2)
I
A12
csi2_0_dy1
Serial Differential data/clock negative input - lane 1 (position 2)
I
B12
csi2_0_dx2
Serial Differential data/clock positive input - lane 2 (position 3)
I
A13
csi2_0_dy2
Serial Differential data/clock negative input - lane 2 (position 3)
I
B13
csi2_0_dx3
Serial Differential data/clock positive input - lane 3 (position 4)
I
A15
csi2_0_dy3
Serial Differential data/clock negative input - lane 3 (position 4)
I
B15
csi2_0_dx4
Serial Differential data positive input only - lane 4 (position 5) (1)
I
A16
I
B16
csi2_0_dy4
DESCRIPTION
Serial Differential data negative input only - lane 4 (position 5)
(1)
(1) Lane 4 (position 5) supports only data. For more information see Imaging Subsystem of the device TRM.
4.3.8
EMIF
NOTE
For more information, see the Memory Subsystem / EMIF Controller section of the device
TRM.
NOTE
The index number 1 which is part of the EMIF1 signal prefixes (ddr1_*) listed in Table 4-9,
EMIF Signal Descriptions, column "SIGNAL NAME" is not to be confused with DDR1 type of
SDRAM memories.
Table 4-9. EMIF Signal Descriptions
SIGNAL NAME
TYPE
BALL
EMIF1 Clock Enable 0
O
F3
ddr1_nck
EMIF1 Negative Clock
O
G2
ddr1_odt0
EMIF1 On-Die Termination for Chip Select 0
O
P2
ddr1_rasn
EMIF1 Row Address Strobe
O
F1
ddr1_rst
EMIF1 Reset output
O
N1
ddr1_wen
EMIF1 Write Enable
O
E3
ddr1_csn0
EMIF1 Chip Select 0
O
B2
EMIF1 Clock
O
G1
ddr1_casn
EMIF1 Column Address Strobe
O
F2
ddr1_ba0
EMIF1 Bank Address
O
B3
ddr1_ba1
EMIF1 Bank Address
O
A3
ddr1_ba2
EMIF1 Bank Address
O
D2
ddr1_ck
46
DESCRIPTION
ddr1_cke0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-9. EMIF Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
ddr1_a0
DESCRIPTION
EMIF1 Address Bus
O
U4
ddr1_a1
EMIF1 Address Bus
O
C1
ddr1_a2
EMIF1 Address Bus
O
D3
ddr1_a3
EMIF1 Address Bus
O
R4
ddr1_a4
EMIF1 Address Bus
O
T4
ddr1_a5
EMIF1 Address Bus
O
N3
ddr1_a6
EMIF1 Address Bus
O
T2
ddr1_a7
EMIF1 Address Bus
O
N2
ddr1_a8
EMIF1 Address Bus
O
T1
ddr1_a9
EMIF1 Address Bus
O
U1
ddr1_a10
EMIF1 Address Bus
O
D1
ddr1_a11
EMIF1 Address Bus
O
R3
ddr1_a12
EMIF1 Address Bus
O
U2
ddr1_a13
EMIF1 Address Bus
O
C3
ddr1_a14
EMIF1 Address Bus
O
R2
ddr1_a15
EMIF1 Address Bus
O
V1
ddr1_d0
EMIF1 Data Bus
IO
AA6
ddr1_d1
EMIF1 Data Bus
IO
AA8
ddr1_d2
EMIF1 Data Bus
IO
Y8
ddr1_d3
EMIF1 Data Bus
IO
AA7
ddr1_d4
EMIF1 Data Bus
IO
AB4
ddr1_d5
EMIF1 Data Bus
IO
Y5
ddr1_d6
EMIF1 Data Bus
IO
AA4
ddr1_d7
EMIF1 Data Bus
IO
Y6
ddr1_d8
EMIF1 Data Bus
IO
AA18
ddr1_d9
EMIF1 Data Bus
IO
Y21
ddr1_d10
EMIF1 Data Bus
IO
AA21
ddr1_d11
EMIF1 Data Bus
IO
Y22
ddr1_d12
EMIF1 Data Bus
IO
AA19
ddr1_d13
EMIF1 Data Bus
IO
AB20
ddr1_d14
EMIF1 Data Bus
IO
Y17
ddr1_d15
EMIF1 Data Bus
IO
AB18
ddr1_d16
EMIF1 Data Bus
IO
AA3
ddr1_d17
EMIF1 Data Bus
IO
AA2
ddr1_d18
EMIF1 Data Bus
IO
Y3
ddr1_d19
EMIF1 Data Bus
IO
V2
ddr1_d20
EMIF1 Data Bus
IO
U3
ddr1_d21
EMIF1 Data Bus
IO
V3
ddr1_d22
EMIF1 Data Bus
IO
Y2
ddr1_d23
EMIF1 Data Bus
IO
Y1
ddr1_d24
EMIF1 Data Bus
IO
U21
ddr1_d25
EMIF1 Data Bus
IO
T20
ddr1_d26
EMIF1 Data Bus
IO
R21
ddr1_d27
EMIF1 Data Bus
IO
U20
ddr1_d28
EMIF1 Data Bus
IO
R22
ddr1_d29
EMIF1 Data Bus
IO
V20
ddr1_d30
EMIF1 Data Bus
IO
W22
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
47
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-9. EMIF Signal Descriptions (continued)
SIGNAL NAME
DESCRIPTION
TYPE
BALL
ddr1_d31
EMIF1 Data Bus
IO
U22
ddr1_ecc_d0
EMIF1 ECC Data Bus
IO
Y11
ddr1_ecc_d1
EMIF1 ECC Data Bus
IO
AA12
ddr1_ecc_d2
EMIF1 ECC Data Bus
IO
AA11
ddr1_ecc_d3
EMIF1 ECC Data Bus
IO
Y9
ddr1_ecc_d4
EMIF1 ECC Data Bus
IO
AA13
ddr1_ecc_d5
EMIF1 ECC Data Bus
IO
AB11
ddr1_ecc_d6
EMIF1 ECC Data Bus
IO
AA9
ddr1_ecc_d7
EMIF1 ECC Data Bus
IO
AB9
ddr1_dqm0
EMIF1 Data Mask
IO
AB8
ddr1_dqm1
EMIF1 Data Mask
IO
Y18
ddr1_dqm2
EMIF1 Data Mask
IO
AB3
ddr1_dqm3
EMIF1 Data Mask
IO
W21
EMIF1 ECC Data Mask
IO
AB13
ddr1_dqs0
Data strobe 0 input/output for byte 0 of the 32-bit data bus. This signal is output to the
EMIF1 memory when writing and input when reading.
IO
AA5
ddr1_dqs1
Data strobe 1 input/output for byte 1 of the 32-bit data bus. This signal is output to the
EMIF1 memory when writing and input when reading.
IO
AA20
ddr1_dqs2
Data strobe 2 input/output for byte 2 of the 32-bit data bus. This signal is output to the
EMIF1 memory when writing and input when reading.
IO
W1
ddr1_dqs3
Data strobe 3 input/output for byte 3 of the 32-bit data bus. This signal is output to the
EMIF1 memory when writing and input when reading.
IO
T21
ddr1_dqsn0
Data strobe 0 invert
IO
AB5
ddr1_dqsn1
Data strobe 1 invert
IO
Y20
ddr1_dqsn2
Data strobe 2 invert
IO
W2
ddr1_dqsn3
ddr1_dqm_ecc
Data strobe 3 invert
IO
T22
ddr1_dqsn_ecc
EMIF1 ECC Complementary Data strobe
IO
AB10
ddr1_dqs_ecc
EMIF1 ECC Data strobe input/output. This signal is output to the EMIF1 memory when
writing and input when reading.
IO
AA10
4.3.9
GPMC
NOTE
For more information, see the Memory Subsystem / General-Purpose Memory Controller
section of the device TRM.
Table 4-10. GPMC Signal Descriptions
SIGNAL NAME
48
TYPE
BALL
gpmc_ad0
DESCRIPTION
GPMC Data 0 in A/D nonmultiplexed mode and additionally Address 1
in A/D multiplexed mode
IO
E8
gpmc_ad1
GPMC Data 1 in A/D nonmultiplexed mode and additionally Address 2
in A/D multiplexed mode
IO
A7
gpmc_ad2
GPMC Data 2 in A/D nonmultiplexed mode and additionally Address 3
in A/D multiplexed mode
IO
F8
gpmc_ad3
GPMC Data 3 in A/D nonmultiplexed mode and additionally Address 4
in A/D multiplexed mode
IO
B7
gpmc_ad4
GPMC Data 4 in A/D nonmultiplexed mode and additionally Address 5
in A/D multiplexed mode
IO
A6
gpmc_ad5
GPMC Data 5 in A/D nonmultiplexed mode and additionally Address 6
in A/D multiplexed mode
IO
F7
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-10. GPMC Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
gpmc_ad6
DESCRIPTION
GPMC Data 6 in A/D nonmultiplexed mode and additionally Address 7
in A/D multiplexed mode
IO
E7
gpmc_ad7
GPMC Data 7 in A/D nonmultiplexed mode and additionally Address 8
in A/D multiplexed mode
IO
C6
gpmc_ad8
GPMC Data 8 in A/D nonmultiplexed mode and additionally Address 9
in A/D multiplexed mode
IO
B6
gpmc_ad9
GPMC Data 9 in A/D nonmultiplexed mode and additionally Address 10
in A/D multiplexed mode
IO
A5
gpmc_ad10
GPMC Data 10 in A/D nonmultiplexed mode and additionally Address
11 in A/D multiplexed mode
IO
D6
gpmc_ad11
GPMC Data 11 in A/D nonmultiplexed mode and additionally Address
12 in A/D multiplexed mode
IO
C5
gpmc_ad12
GPMC Data 12 in A/D nonmultiplexed mode and additionally Address
13 in A/D multiplexed mode
IO
B5
gpmc_ad13
GPMC Data 13 in A/D nonmultiplexed mode and additionally Address
14 in A/D multiplexed mode
IO
D7
gpmc_ad14
GPMC Data 14 in A/D nonmultiplexed mode and additionally Address
15 in A/D multiplexed mode
IO
B4
gpmc_ad15
GPMC Data 15 in A/D nonmultiplexed mode and additionally Address
16 in A/D multiplexed mode
IO
A4
gpmc_a0
GPMC Address 0. Only used to effectively address 8-bit data
nonmultiplexed memories
O
U9
gpmc_a1
GPMC address 1 in A/D nonmultiplexed mode and Address 17 in A/D
multiplexed mode
O
W11
gpmc_a2
GPMC address 2 in A/D nonmultiplexed mode and Address 18 in A/D
multiplexed mode
O
V9
gpmc_a3
GPMC address 3 in A/D nonmultiplexed mode and Address 19 in A/D
multiplexed mode
O
W9
gpmc_a4
GPMC address 4 in A/D nonmultiplexed mode and Address 20 in A/D
multiplexed mode
O
U8
gpmc_a5
GPMC address 5 in A/D nonmultiplexed mode and Address 21 in A/D
multiplexed mode
O
W8
gpmc_a6
GPMC address 6 in A/D nonmultiplexed mode and Address 22 in A/D
multiplexed mode
O
U7
gpmc_a7
GPMC address 7 in A/D nonmultiplexed mode and Address 23 in A/D
multiplexed mode
O
V7
gpmc_a8
GPMC address 8 in A/D nonmultiplexed mode and Address 24 in A/D
multiplexed mode
O
J17
gpmc_a9
GPMC address 9 in A/D nonmultiplexed mode and Address 25 in A/D
multiplexed mode
O
K22
gpmc_a10
GPMC address 10 in A/D nonmultiplexed mode and Address 26 in A/D
multiplexed mode
O
K21
gpmc_a11
GPMC address 11 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
K18
gpmc_a12
GPMC address 12 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
D14, F13, F14, K17
gpmc_a13
GPMC address 13 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
C14, D15, E14, K19
gpmc_a14
GPMC address 14 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
K20
gpmc_a15
GPMC address 15 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
L21
gpmc_a16
GPMC address 16 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
F14
gpmc_a17
GPMC address 17 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
C14
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
49
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-10. GPMC Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
gpmc_a18
GPMC address 18 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
F15
gpmc_a19
GPMC address 19 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
F16
gpmc_a20
GPMC address 20 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
AA14
gpmc_a21
GPMC address 21 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
AB14
gpmc_a22
GPMC address 22 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
U13
gpmc_a23
GPMC address 23 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
V13
gpmc_a24
GPMC address 24 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
Y13
gpmc_a25
GPMC address 25 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
W13
gpmc_a26
GPMC address 26 in A/D nonmultiplexed mode and unused in A/D
multiplexed mode
O
U11
gpmc_a27
GPMC address 27 in A/D nonmultiplexed mode and Address 27 in A/D
multiplexed mode
O
V11
gpmc_cs0
GPMC Chip Select 0 (active low)
O
C10
gpmc_cs1
GPMC Chip Select 1 (active low)
O
E10
gpmc_cs2
GPMC Chip Select 2 (active low)
O
D10
gpmc_cs3
GPMC Chip Select 3 (active low)
O
A9
gpmc_cs4
GPMC Chip Select 4 (active low)
O
B9
gpmc_cs5
GPMC Chip Select 5 (active low)
O
F10
gpmc_cs6
GPMC Chip Select 6 (active low)
O
C8
gpmc_cs7
GPMC Chip Select 7 (active low)
O
W6
GPMC Clock output
IO
C12, D14, F14, F15
gpmc_advn_ale
GPMC address valid active low or address latch enable
O
F12
gpmc_oen_ren
GPMC output enable active low or read enable
O
A10
gpmc_wen
GPMC write enable active low
O
B10
gpmc_ben0
GPMC lower-byte enable active low
O
D12
gpmc_ben1
GPMC upper-byte enable active low
O
E12
gpmc_wait0
GPMC external indication of wait 0
I
D8
gpmc_wait1
GPMC external indication of wait 1
I
W7
gpmc_clk(1)
DESCRIPTION
(1) The gpio6_16.clkout0 signal can be used as an “always-on” alternative to gpmc_clk provided that the external device can support the
associated timing. See Table 5-32 GPMC/NOR Flash Interface Switching Characteristics - Synchronous Mode - 1 Load and Table 5-34
GPMC/NOR Flash Interface Switching Characteristics - Synchronous Mode - 5 Loads for timing information.
4.3.10 Timers
NOTE
For more information, see the Timers section of the device TRM.
Table 4-11. Timers Signal Descriptions
SIGNAL NAME
50
DESCRIPTION
TYPE
BALL
D14, R7
timer1
PWM output/event trigger input
IO
timer2
PWM output/event trigger input
IO
D15, D6
timer3
PWM output/event trigger input
IO
C5, F14, L1
timer4
PWM output/event trigger input
IO
C14, C6, L2
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-11. Timers Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
timer5
DESCRIPTION
PWM output/event trigger input
IO
E7, N4
timer6
PWM output/event trigger input
IO
F7, R5
timer7
PWM output/event trigger input
IO
B6, F15
timer8
PWM output/event trigger input
IO
F16
4.3.11 I2C
NOTE
For more information, see the Serial Communication Interface / Multimaster I2C Controller /
I2C Environment / I2C Pins for Typical Connections in I2C Mode section of the device TRM.
Table 4-12. I2C Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
Inter-Integrated Circuit Interface (I2C1)
i2c1_scl
I2C1 Clock
IOD
L3
i2c1_sda
I2C1 Data
IOD
L4
Inter-Integrated Circuit Interface (I2C2)
i2c2_scl
I2C2 Clock
IOD
L6
i2c2_sda
I2C2 Data
IOD
L5
4.3.12 UART
NOTE
For more information see the Serial Communication Interface UART section of the device
TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are only valid if signals within a single IOSET are used. The
IOSETs are defined in Table 5-43.
Table 4-13. UART Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
Universal Asynchronous Receiver/Transmitter (UART1)
uart1_ctsn
UART1 clear to send active low
I
F14
uart1_rtsn
UART1 request to send active low
O
C14
uart1_rxd
UART1 Receive Data
I
F13
uart1_txd
UART1 Transmit Data
O
E14
Universal Asynchronous Receiver/Transmitter (UART2)
uart2_ctsn
UART2 clear to send active low
I
F15
uart2_rtsn
UART2 request to send active low
O
F16
uart2_rxd
UART2 Receive Data
I
D14, E7
uart2_txd
UART2 Transmit Data
O
D15, F7
I
N4, U6
Universal Asynchronous Receiver/Transmitter (UART3)
uart3_ctsn
UART3 clear to send active low
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
51
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-13. UART Signal Descriptions (continued)
SIGNAL NAME
DESCRIPTION
TYPE
BALL
O
R7, T5
UART3 Receive Data
I
F14, L1, M2, W7
UART3 Transmit Data
O
C14, L2, R6, W6
uart3_rtsn
UART3 request to send active low
uart3_rxd
uart3_txd
4.3.13 McSPI
NOTE
For more information, see the Serial Communication Interface / Multichannel Serial
Peripheral Interface (McSPI) section of the device TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are applicable for all combinations of signals for SPI2 and SPI4.
However, the timings are only valid for SPI1 and SPI3 if signals within a single
IOSET are used. The IOSETs are defined in Table 5-46.
Table 4-14. SPI Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
Serial Peripheral Interface 1
spi1_sclk
SPI1 Clock
IO
M2
spi1_d0
SPI1 Data. Can be configured as either MISO or MOSI.
IO
T5
spi1_d1
SPI1 Data. Can be configured as either MISO or MOSI.
IO
U6
spi1_cs0
SPI1 Chip Select
IO
M1, R6
spi1_cs1
SPI1 Chip Select
IO
M1, R5
spi1_cs2
SPI1 Chip Select
IO
F14, W7
spi1_cs3
SPI1 Chip Select
IO
C14, W6
SPI2 Clock
IO
L1
spi2_d0
SPI2 Data. Can be configured as either MISO or MOSI.
IO
R7
spi2_d1
SPI2 Data. Can be configured as either MISO or MOSI.
IO
N4
spi2_cs0
SPI2 Chip Select
IO
A4, L2
spi2_cs1
SPI2 Chip Select
IO
B4, M1
Serial Peripheral Interface 2
spi2_sclk
Serial Peripheral Interface 3
spi3_sclk
SPI3 Clock
IO
C6, F15
spi3_d0
SPI3 Data. Can be configured as either MISO or MOSI.
IO
D15, E7
spi3_d1
SPI3 Data. Can be configured as either MISO or MOSI.
IO
D14, F7
spi3_cs0
SPI3 Chip Select
IO
B6, F16, M1
spi3_cs1
SPI3 Chip Select
IO
A5, R5
Serial Peripheral Interface 4
spi4_sclk
52
SPI4 Clock
IO
C16, F14
spi4_d0
SPI4 Data. Can be configured as either MISO or MOSI.
IO
B17, E14
spi4_d1
SPI4 Data. Can be configured as either MISO or MOSI.
IO
B19, F13
spi4_cs0
SPI4 Chip Select
IO
C14, C17
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
4.3.14 QSPI
NOTE
For more information see the Serial Communication Interface / Quad Serial Peripheral
Interface section of the device TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are only valid if signals within a single IOSET are used. The
IOSETs are defined in Table 5-49.
Table 4-15. QSPI Signal Descriptions
SIGNAL NAME
TYPE
BALL
qspi1_sclk
DESCRIPTION
QSPI1 Serial Clock
O
C8
qspi1_rtclk
QSPI1 Return Clock Input.Must be connected from QSPI1_SCLK on PCB. Refer
to PCB Guidelines for QSPI1
I
B7, C14, D8, F13
qspi1_d0
QSPI1 Data[0]. This pin is output data for all commands/writes and for dual read
and quad read modes it becomes input data pin during read phase.
IO
B9
qspi1_d1
QSPI1 Data[1]. Input read data in all modes.
IO
F10
qspi1_d2
QSPI1 Data[2]. This pin is used only in quad read mode as input data pin during
read phase
IO
A9
qspi1_d3
QSPI1 Data[3]. This pin is used only in quad read mode as input data pin during
read phase
IO
D10
qspi1_cs0
QSPI1 Chip Select[0]. This pin is used for QSPI1 boot modes.
IO
E10
qspi1_cs1
QSPI1 Chip Select[1]
IO
F15
4.3.15 McASP
NOTE
For more information, see the Serial Communication Interface / Multichannel Audio Serial
Port (McASP) section of the device TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are only valid if signals within a single IOSET are used. The
IOSETs are defined in Table 5-56.
Table 4-16. McASP Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
W16
Multichannel Audio Serial Port 1
mcasp1_axr0
McASP1 Transmit/Receive Data
IO
mcasp1_axr1
McASP1 Transmit/Receive Data
IO
V16
mcasp1_axr2
McASP1 Transmit/Receive Data
IO
U15
mcasp1_axr3
McASP1 Transmit/Receive Data
IO
V15
mcasp1_axr4
McASP1 Transmit/Receive Data
IO
Y15
mcasp1_axr5
McASP1 Transmit/Receive Data
IO
W15
mcasp1_axr6
McASP1 Transmit/Receive Data
IO
AA15
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
53
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-16. McASP Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
mcasp1_axr7
McASP1 Transmit/Receive Data
IO
AB15
mcasp1_axr8
McASP1 Transmit/Receive Data
IO
AA14, U15, U9
mcasp1_axr9
McASP1 Transmit/Receive Data
IO
AB14, V15, W11
mcasp1_axr10
McASP1 Transmit/Receive Data
IO
U13, V9, Y15
mcasp1_axr11
McASP1 Transmit/Receive Data
IO
V13, W15, W9
mcasp1_axr12
McASP1 Transmit/Receive Data
IO
AA15, U8, Y13
mcasp1_axr13
McASP1 Transmit/Receive Data
IO
AB15, W13, W8
mcasp1_axr14
McASP1 Transmit/Receive Data
IO
K20, U11, U7
mcasp1_axr15
McASP1 Transmit/Receive Data
IO
L21, V11, V7
mcasp1_fsx
McASP1 Transmit Frame Sync
IO
W17
McASP1 Receive Bit Clock
IO
AA17
U16
mcasp1_aclkr
mcasp1_fsr
DESCRIPTION
McASP1 Receive Frame Sync
IO
mcasp1_ahclkx
McASP1 Transmit High-Frequency Master Clock
O
U9
mcasp1_aclkx
McASP1 Transmit Bit Clock
IO
U17
Multichannel Audio Serial Port 2
mcasp2_axr0
McASP2 Transmit/Receive Data
IO
D6, V9
mcasp2_axr1
McASP2 Transmit/Receive Data
IO
C5, W9
mcasp2_axr2
McASP2 Transmit/Receive Data
IO
B5, U8
mcasp2_axr3
McASP2 Transmit/Receive Data
IO
D7, W8
mcasp2_axr4
McASP2 Transmit/Receive Data
IO
B4, U7
mcasp2_axr5
McASP2 Transmit/Receive Data
IO
A4, V7
mcasp2_fsx
McASP2 Transmit Frame Sync
IO
E7, V11
McASP2 Receive Bit Clock
IO
B6, W13
McASP2 Receive Frame Sync
IO
A5, W11
mcasp2_aclkr
mcasp2_fsr
mcasp2_ahclkx
McASP2 Transmit High-Frequency Master Clock
O
C6, Y13
mcasp2_aclkx
McASP2 Transmit Bit Clock
IO
F7, U11
Multichannel Audio Serial Port 3
mcasp3_axr0
McASP3 Transmit/Receive Data
IO
G19
mcasp3_axr1
McASP3 Transmit/Receive Data
IO
G18
mcasp3_axr2
McASP3 Transmit/Receive Data
IO
G21
mcasp3_axr3
McASP3 Transmit/Receive Data
IO
G22
mcasp3_axr4
McASP3 Transmit/Receive Data
IO
H18
mcasp3_axr5
McASP3 Transmit/Receive Data
IO
H20
mcasp3_fsx
McASP3 Transmit Frame Sync
IO
H22
mcasp3_ahclkx
McASP3 Transmit High-Frequency Master Clock
O
H19
mcasp3_aclkx
McASP3 Transmit Bit Clock
IO
F22
mcasp3_aclkr
McASP3 Receive Bit Clock
IO
F20
McASP3 Receive Frame Sync
IO
F19
mcasp3_fsr
4.3.16 DCAN and MCAN
NOTE
For more information, see the Serial Communication Interface / DCAN section of the device
TRM.
54
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are only valid if signals within a single IOSET are used. The
IOSETs are defined in Table 5-59.
Table 4-17. DCAN and MCAN Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
DCAN 1
dcan1_rx
DCAN1 receive data pin
IO
C14, D15, N6
dcan1_tx
DCAN1 transmit data pin
IO
D14, F14, N5
mcan_rx
MCAN receive data pin
IO
E14, F16, W6
mcan_tx
MCAN transmit data pin
IO
F13, F15, W7
MCAN
4.3.17 GMAC_SW
NOTE
For more information, see the Serial Communication Interfaces / Gigabit Ethernet Switch
(GMAC_SW) section of the device TRM.
Table 4-18. GMAC Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
rgmii0_rxc
RGMII0 Receive Clock
I
B18
rgmii0_rxctl
RGMII0 Receive Control
I
C18
rgmii0_rxd0
RGMII0 Receive Data
I
A20
rgmii0_rxd1
RGMII0 Receive Data
I
C20
rgmii0_rxd2
RGMII0 Receive Data
I
B20
rgmii0_rxd3
RGMII0 Receive Data
I
A19
rgmii0_txc
RGMII0 Transmit Clock
O
C16
rgmii0_txctl
RGMII0 Transmit Enable
O
C17
rgmii0_txd0
RGMII0 Transmit Data
O
F17
rgmii0_txd1
RGMII0 Transmit Data
O
E17
rgmii0_txd2
RGMII0 Transmit Data
O
D16
rgmii0_txd3
RGMII0 Transmit Data
O
E16
rgmii1_rxc
RGMII1 Receive Clock
I
D7
rgmii1_rxctl
RGMII1 Receive Control
I
C10
rgmii1_rxd0
RGMII1 Receive Data
I
F8
rgmii1_rxd1
RGMII1 Receive Data
I
A7
rgmii1_rxd2
RGMII1 Receive Data
I
E8
rgmii1_rxd3
RGMII1 Receive Data
I
D8
rgmii1_txc
RGMII1 Transmit Clock
O
C12
rgmii1_txctl
RGMII1 Transmit Enable
O
D12
rgmii1_txd0
RGMII1 Transmit Data
O
B10
rgmii1_txd1
RGMII1 Transmit Data
O
A10
rgmii1_txd2
RGMII1 Transmit Data
O
F12
rgmii1_txd3
RGMII1 Transmit Data
O
E12
Management Data
IO
B17
mdio_d
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
55
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-18. GMAC Signal Descriptions (continued)
SIGNAL NAME
mdio_mclk
DESCRIPTION
TYPE
BALL
O
B19
Management Data Serial Clock
4.3.18 SDIO Controller
NOTE
For more information, see the SDIO Controller section of the device TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are only valid if signals within a single IOSET are used. The
IOSETs are defined in Table 5-74.
Table 4-19. SDIO Controller Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
Multi Media Card 1
MMC1 clock
IO
B18, C16, W16
mmc_cmd
mmc_clk
MMC1 command
IO
C17, C18, V16
mmc_dat0
MMC1 data bit 0
IO
A19, E16, U15
mmc_dat1
MMC1 data bit 1
IO
B20, D16, V15
mmc_dat2
MMC1 data bit 2
IO
C20, E17, Y15
mmc_dat3
MMC1 data bit 3
IO
A20, F17, W15
4.3.19 GPIO
NOTE
For more information, see the General-Purpose Interface section of the device TRM.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching
Characteristics are only valid if signals within a single IOSET are used. The
IOSETs are defined in Table 5-75.
Table 4-20. GPIOs Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
GPIO 1
56
gpio1_0
General-Purpose Input/Output
IO
C12
gpio1_1
General-Purpose Input/Output
IO
D12
gpio1_2
General-Purpose Input/Output
IO
E12
gpio1_3
General-Purpose Input/Output
IO
F12
gpio1_4
General-Purpose Input/Output
IO
A10
gpio1_5
General-Purpose Input/Output
IO
B10
gpio1_6
General-Purpose Input/Output
IO
C10
gpio1_7
General-Purpose Input/Output
IO
E10
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-20. GPIOs Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
gpio1_8
DESCRIPTION
General-Purpose Input/Output
IO
D10
A9
gpio1_9
General-Purpose Input/Output
IO
gpio1_10
General-Purpose Input/Output
IO
B9
gpio1_11
General-Purpose Input/Output
IO
F10
gpio1_12
General-Purpose Input/Output
IO
C8
gpio1_13
General-Purpose Input/Output
IO
D8
gpio1_14
General-Purpose Input/Output
IO
E8
gpio1_15
General-Purpose Input/Output
IO
A7
gpio1_16
General-Purpose Input/Output
IO
F8
gpio1_17
General-Purpose Input/Output
IO
B7
gpio1_18
General-Purpose Input/Output
IO
A6
gpio1_19
General-Purpose Input/Output
IO
F7
gpio1_20
General-Purpose Input/Output
IO
E7
gpio1_21
General-Purpose Input/Output
IO
C6
gpio1_22
General-Purpose Input/Output
IO
B6
gpio1_23
General-Purpose Input/Output
IO
A5
gpio1_24
General-Purpose Input/Output
IO
D6
gpio1_25
General-Purpose Input/Output
IO
C5
gpio1_26
General-Purpose Input/Output
IO
B5
gpio1_27
General-Purpose Input/Output
IO
D7
gpio1_28
General-Purpose Input/Output
IO
B4
gpio1_29
General-Purpose Input/Output
IO
A4
gpio1_30
General-Purpose Input/Output
IO
F22
gpio1_31
General-Purpose Input/Output
IO
F21
gpio2_0
General-Purpose Input/Output
IO
F20
gpio2_1
General-Purpose Input/Output
IO
F19
gpio2_2
General-Purpose Input/Output
IO
G19
gpio2_3
General-Purpose Input/Output
IO
G18
gpio2_4
General-Purpose Input/Output
IO
G21
gpio2_5
General-Purpose Input/Output
IO
G22
gpio2_6
General-Purpose Input/Output
IO
H18
gpio2_7
General-Purpose Input/Output
IO
H20
gpio2_8
General-Purpose Input/Output
IO
H19
GPIO 2
gpio2_9
General-Purpose Input/Output
IO
H22
gpio2_10
General-Purpose Input/Output
IO
H21
gpio2_11
General-Purpose Input/Output
IO
J17
gpio2_12
General-Purpose Input/Output
IO
K22
gpio2_13
General-Purpose Input/Output
IO
K21
gpio2_14
General-Purpose Input/Output
IO
K18
gpio2_15
General-Purpose Input/Output
IO
K17
gpio2_16
General-Purpose Input/Output
IO
K19
gpio2_17
General-Purpose Input/Output
IO
K20
gpio2_18
General-Purpose Input/Output
IO
L21
gpio2_19
General-Purpose Input/Output
IO
L22
gpio2_20
General-Purpose Input/Output
IO
AB17
gpio2_21
General-Purpose Input/Output
IO
U17
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
57
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-20. GPIOs Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
gpio2_22
DESCRIPTION
General-Purpose Input/Output
IO
W17
gpio2_23
General-Purpose Input/Output
IO
AA17
gpio2_24
General-Purpose Input/Output
IO
U16
gpio2_25
General-Purpose Input/Output
IO
W16
gpio2_26
General-Purpose Input/Output
IO
V16
gpio2_27
General-Purpose Input/Output
IO
U15
gpio2_28
General-Purpose Input/Output
IO
V15
gpio2_29
General-Purpose Input/Output
IO
Y15
gpio2_30
General-Purpose Input/Output
IO
W15
gpio2_31
General-Purpose Input/Output
IO
AA15
gpio3_0
General-Purpose Input/Output
IO
AB15
gpio3_1
General-Purpose Input/Output
IO
AA14
gpio3_2
General-Purpose Input/Output
IO
AB14
gpio3_3
General-Purpose Input/Output
IO
U13
gpio3_4
General-Purpose Input/Output
IO
V13
gpio3_5
General-Purpose Input/Output
IO
Y13
gpio3_6
General-Purpose Input/Output
IO
W13
gpio3_7
General-Purpose Input/Output
IO
U11
gpio3_8
General-Purpose Input/Output
IO
V11
gpio3_9
General-Purpose Input/Output
IO
U9
gpio3_10
General-Purpose Input/Output
IO
W11
gpio3_11
General-Purpose Input/Output
IO
V9
gpio3_12
General-Purpose Input/Output
IO
W9
gpio3_13
General-Purpose Input/Output
IO
U8
gpio3_14
General-Purpose Input/Output
IO
W8
gpio3_15
General-Purpose Input/Output
IO
U7
gpio3_16
General-Purpose Input/Output
IO
V7
gpio3_17
General-Purpose Input/Output
IO
B19
gpio3_18
General-Purpose Input/Output
IO
B17
gpio3_19
General-Purpose Input/Output
IO
C16
gpio3_20
General-Purpose Input/Output
IO
C17
gpio3_21
General-Purpose Input/Output
IO
E16
gpio3_22
General-Purpose Input/Output
IO
D16
gpio3_23
General-Purpose Input/Output
IO
E17
gpio3_24
General-Purpose Input/Output
IO
F17
gpio3_25
General-Purpose Input/Output
IO
B18
gpio3_26
General-Purpose Input/Output
IO
C18
gpio3_27
General-Purpose Input/Output
IO
A19
gpio3_28
General-Purpose Input/Output
IO
B20
gpio3_29
General-Purpose Input/Output
IO
C20
gpio3_30
General-Purpose Input/Output
IO
A20
gpio3_31
General-Purpose Input/Output
IO
M1
gpio4_0
General-Purpose Input/Output
IO
M2
gpio4_1
General-Purpose Input/Output
IO
U6
gpio4_2
General-Purpose Input/Output
IO
T5
GPIO 3
GPIO 4
58
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-20. GPIOs Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
gpio4_3
DESCRIPTION
General-Purpose Input/Output
IO
R6
gpio4_4
General-Purpose Input/Output
IO
R5
gpio4_5
General-Purpose Input/Output
IO
L1
gpio4_6
General-Purpose Input/Output
IO
N4
gpio4_7
General-Purpose Input/Output
IO
R7
gpio4_8
General-Purpose Input/Output
IO
L2
gpio4_9
General-Purpose Input/Output
IO
N5
gpio4_10
General-Purpose Input/Output
IO
N6
gpio4_11
General-Purpose Input/Output
IO
W7
gpio4_12
General-Purpose Input/Output
IO
W6
gpio4_13
General-Purpose Input/Output
IO
F13
gpio4_14
General-Purpose Input/Output
IO
E14
gpio4_15
General-Purpose Input/Output
IO
F14
gpio4_16
General-Purpose Input/Output
IO
C14
gpio4_17
General-Purpose Input/Output
IO
D14
gpio4_18
General-Purpose Input/Output
IO
D15
gpio4_19
General-Purpose Input/Output
IO
F15
gpio4_20
General-Purpose Input/Output
IO
F16
gpio4_21
General-Purpose Input/Output
IO
M17
gpio4_22
General-Purpose Input/Output
IO
M18
gpio4_25
General-Purpose Input/Output
IO
J1
gpio4_26
General-Purpose Input/Output
IO
J4
gpio4_27
General-Purpose Input/Output
IO
J6
gpio4_28
General-Purpose Input/Output
IO
H1
gpio4_29
General-Purpose Input/Output
IO
H2
4.3.20 ePWM
NOTE
For more information, see Pulse Width Modulation Subsystem (PWMSS) section of the
device TRM.
Table 4-21. PWM Signal Descriptions
SIGNAL NAME
DESCRIPTION
TYPE
BALL
PWMSS1
ehrpwm1A
EHRPWM1 Output A
O
D12, D14, L1
ehrpwm1B
EHRPWM1 Output B
O
D15, E12, L2
EHRPWM1 Trip Zone Input
IO
F12, R5
ECAP1 Capture Input / PWM Output
IO
A5, AB15, D16, F16,
N4
ehrpwm1_tripzone_input
eCAP1_in_PWM1_out
ehrpwm1_synci
EHRPWM1 Sync Input
I
A10, F14
ehrpwm1_synco
EHRPWM1 Sync Output
O
B10, C14
4.3.21 ATL
NOTE
For more information, see the Audio Tracking Logic (ATL) section of the device TRM.
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
59
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-22. ATL Signal Descriptions
SIGNAL NAME DESCRIPTION
TYPE
BALL
atl_clk0
Audio Tracking Logic Clock 0
O
U9
atl_clk1
Audio Tracking Logic Clock 1
O
F21
4.3.22 Test Interfaces
NOTE
For more information, see the On-Chip Debug Support section of the device TRM.
Table 4-23. Debug Signal Descriptions
SIGNAL NAME
TYPE
BALL
rtck
DESCRIPTION
JTAG return clock
O
J6
tclk
JTAG test clock
I
J2
tdi
JTAG test data
I
J1
tdo
JTAG test port data
O
J4
tms
JTAG test port mode select. An external pullup resistor should be used on this
ball.
IO
J3
trstn
JTAG test reset
I
J5
emu0
Emulator pin 0
IO
H1
emu1
Emulator pin 1
IO
H2
emu2
Emulator pin 2
O
AA15
emu3
Emulator pin 3
O
AB15
emu4
Emulator pin 4
O
AA14
emu5
Emulator pin 5
O
AB14
emu6
Emulator pin 6
O
U13
emu7
Emulator pin 7
O
V13
emu8
Emulator pin 8
O
Y13
emu9
Emulator pin 9
O
W13
emu10
Emulator pin 10
O
U11
emu11
Emulator pin 11
O
V11
emu12
Emulator pin 12
O
U9
emu13
Emulator pin 13
O
W11
emu14
Emulator pin 14
O
V9
emu15
Emulator pin 15
O
W9
emu16
Emulator pin 16
O
U8
emu17
Emulator pin 17
O
W8
emu18
Emulator pin 18
O
U7
emu19
Emulator pin 19
O
V7
4.3.23 System and Miscellaneous
4.3.23.1 Sysboot
NOTE
For more information, see the Initialization (ROM Code) section of the device TRM.
60
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-24. Sysboot Signal Descriptions
SIGNAL NAME
TYPE
BALL
sysboot0
DESCRIPTION
Boot Mode Configuration 0. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
E8
sysboot1
Boot Mode Configuration 1. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
A7
sysboot2
Boot Mode Configuration 2. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
F8
sysboot3
Boot Mode Configuration 3. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
B7
sysboot4
Boot Mode Configuration 4. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
A6
sysboot5
Boot Mode Configuration 5. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
F7
sysboot6
Boot Mode Configuration 6. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
E7
sysboot7
Boot Mode Configuration 7. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
R7
sysboot8
Boot Mode Configuration 8. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
B6
sysboot9
Boot Mode Configuration 9. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
A5
sysboot10
Boot Mode Configuration 10. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
D6
sysboot11
Boot Mode Configuration 11. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
C5
sysboot12
Boot Mode Configuration 12. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
B5
sysboot13
Boot Mode Configuration 13. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
D7
sysboot14
Boot Mode Configuration 14. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
B4
sysboot15
Boot Mode Configuration 15. The value latched on this pin upon porz reset release
will determine the boot mode configuration of the device.
I
A4
4.3.23.2 Power, Reset and Clock Management (PRCM)
NOTE
For more information, see Power, Reset, and Clock Management section of the device TRM.
Table 4-25. PRCM Signal Descriptions
SIGNAL NAME
TYPE
BALL
clkout0
Device Clock output 1. Can be used externally for devices with non-critical timing
requirements, or for debug, or as a reference clock on GPMC as described in
Table 5-32 GPMC/NOR Flash Interface Switching Characteristics - Synchronous
Mode - 1 Load and Table 5-34 GPMC/NOR Flash Interface Switching
Characteristics - Synchronous Mode - 5 Loads.
O
AB17, C12, F14, F22,
M1
clkout1
Device Clock output 2. Can be used as a system clock for other devices.
O
F12, F21, U17
clkout2
Device Clock output 3. Can be used as a system clock for other devices.
O
A10, F20, W17
rstoutn
Reset out (Active low). This pin asserts low in response to any global reset condition
on the device.
O
F4
resetn
Device Reset Input
I
G4
Power on Reset (active low). This pin must be asserted low until all device supplies
are valid (see reset sequence/requirements).
I
G3
External Reference Clock 0. For Audio and other Peripherals.
I
M1
porz
xref_clk0
DESCRIPTION
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
61
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-25. PRCM Signal Descriptions (continued)
SIGNAL NAME
TYPE
BALL
xref_clk1
DESCRIPTION
External Reference Clock 1. For Audio and other Peripherals.
I
F14, F15
xref_clk2
External Reference Clock 2. For Audio and other Peripherals.
I
H19
xi_osc0
System Oscillator OSC0 Crystal input / LVCMOS clock input. Functions as the input
connection to a crystal when the internal oscillator OSC0 is used. Functions as an
LVCMOS-compatible input clock when an external oscillator is used.
I
E22
xi_osc1
Auxiliary Oscillator OSC1 Crystal input / LVCMOS clock input. Functions as the
input connection to a crystal when the internal oscillator OSC1 is used. Functions as
an LVCMOS-compatible input clock when an external oscillator is used
I
B21
xo_osc0
System Oscillator OSC0 Crystal output
O
D22
xo_osc1
Auxiliary Oscillator OSC1 Crystal output
O
C21
4.3.23.3 Enhanced Direct Memory Access (EDMA)
NOTE
For more information, see the DMA Controllers / Enhanced DMA section of the device TRM.
Table 4-26. EDMA Signal Descriptions
SIGNAL NAME
TYPE
BALL
dma_evt1
DESCRIPTION
Enhanced DMA Event Input 1
I
C12, K17
dma_evt2
Enhanced DMA Event Input 2
I
D12, K19
dma_evt3
Enhanced DMA Event Input 3
I
E12
dma_evt4
Enhanced DMA Event Input 4
I
F12, D8
TYPE
BALL
Non maskable interrupt input - active-low. This pin can be optionally routed to the
DSP NMI input or as generic input to the ARM cores.
I
G5
sys_nirq1
External interrupt event to any device INTC
I
K18, K22
sys_nirq2
External interrupt event to any device INTC
I
J17, K21
4.3.23.4 Interrupt Controllers (INTC)
NOTE
For more information, see the Interrupt Controllers section of the device TRM.
Table 4-27. INTC Signal Descriptions
SIGNAL NAME
nmin
DESCRIPTION
4.3.24 Power Supplies
NOTE
For more information, see Power, Reset, and Clock Management / PRCM Subsystem
Environment / External Voltage Inputs section of the device TRM.
Table 4-28. Power Supply Signal Descriptions
SIGNAL NAME
vdd
62
DESCRIPTION
TYPE
BALL
Core voltage domain supply
PWR
H7 , H12 , H13 , J10 ,
J11 , J15 , K12 , L12 ,
L15 , N12 , N16 ,
P10 , P14
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-28. Power Supply Signal Descriptions (continued)
SIGNAL NAME
vss
vdd_dspeve
vdda_per
vdda_ddr_dsp
vdda_gmac_core
DESCRIPTION
TYPE
BALL
Ground
GND
A1 , A8 , A17 , A22 ,
B22 , E1 , G10 ,
G16 , H8 , H9 , H10 ,
H11 , H15 , H16 ,
J22 , K1 , K9 , K10 ,
K11 , K13 , K14 ,
K15 , K16 , M10 ,
M11 , M12 , M13 ,
M16 , N7 , N10 , P1 ,
P15 , P16 , R9 , R12 ,
R16 , T14 , V22 ,
AB1 , AB2 , AB7 ,
AB12 , AB16 , AB21 ,
AB22
DSP-EVE voltage domain supply
PWR
K8 , L8 , M9 , P8 ,
P9 , P11 , P12
PER PLL and PER HSDIVIDER analog power supply
PWR
H14
EVE PLL, DPLL_DDR and DDR HSDIVIDER analog power supply
PWR
N8
GMAC PLL, GMAC HSDIVIDER, DPLL_CORE and CORE HSDIVIDER
analog power supply
PWR
M8
vdda_osc
IO supply for oscillator section
PWR
E21
vssa_osc0
OSC0 analog ground
GND
D21
vssa_osc1
OSC1 analog ground
GND
C22
vdda_csi
CSI analog power supply
PWR
A14
vssa_csi
CSI analog ground
GND
B14
vdda_dac
DAC analog power supply
PWR
U19
vssa_dac
DAC analog ground
GND
T19
vdda_adc
ADC analog power supply
PWR
P22
vssa_adc
ADC analog ground
GND
P21
vdds18v
1.8V power supply and Power Group bias supply
PWR
G12, J7, L16, P13,
T11
vdds18v_ddr1
1.8v bias supply for Byte0, Byte2, ECC Byte, Addr Cmd
PWR
P7, T9
vdds18v_ddr2
1.8v bias supply for Addr Cmd
PWR
G7
vdds18v_ddr3
1.8v bias supply for Byte1, Byte3
PWR
T16, V21
vdds_ddr1
IO power supply for Byte0, Byte2, ECC Byte, Addr Cmd
PWR
R1, T7, T8, AA1, AB6
vdds_ddr2
IO power supply for Addr Cmd
PWR
C2, E2, G6
vdds_ddr3
IO power supply for Byte1, Byte3
PWR
T15, AA22, AB19
vddshv1
Dual Voltage (1.8V or 3.3V) power supply for the GENERAL Power
Group pins
PWR
K2, K7, L7, M7
vddshv2
Dual Voltage (1.8V or 3.3V) power supply for the GPMC Power Group
pins
PWR
G8, G9, G11, B8
vddshv3
Dual Voltage (1.8V or 3.3V) power supply for the UART1 and UART2
Power Group pins
PWR
G14
vddshv4
Dual Voltage (1.8V or 3.3V) power supply for the RGMII Power Group
pins
PWR
A18, E20
vddshv5
Dual Voltage (1.8V or 3.3V) power supply for the VIN1 Power Group
pins
PWR
H17, J16, J21
vddshv6
Dual Voltage (1.8V or 3.3V) power supply for the VOUT1 Power Group
pins
PWR
T10, T12, T13, AA16
cap_vddram_core1(1)
SRAM array supply for core voltage domain memories
CAP
N15
cap_vddram_core2(1)
SRAM array supply for core voltage domain memories
CAP
M15
SRAM array supply for DSP-EVE memories
CAP
M14
cap_vddram_dspeve(1)
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
63
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(1) This pin must always be connected via a 1-uF capacitor to vss.
64
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
4.4
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Pin Multiplexing
Table 4-29 describes the device pin multiplexing (no characteristics are provided in this table).
NOTE
Table 4-29, Pin Multiplexing doesn't take into account subsystem multiplexing signals. Subsystem multiplexing signals are described in
Section 4.3, Signal Descriptions.
NOTE
For more information, see the Control Module / Control Module Functional Description / Pad Configuration Registers section of the Device
TRM.
NOTE
Configuring two pins to the same input signal is not supported as it can yield unexpected results. This can be easily prevented with the
proper software configuration (Hi-Z mode is not an input signal).
NOTE
When a pad is set into a pin multiplexing mode which is not defined, that pad’s behavior is undefined. This should be avoided.
NOTE
In some cases Table 4-29 may present more than one signal per muxmode for the same ball. First signal in the list is the dominant
function as selected via CTRL_CORE_PAD_* register.
All other signals are virtual functions that present alternate multiplexing options. This virtual functions are controlled via
CTRL_CORE_ALT_SELECT_MUX or CTRL_CORE_VIP_MUX_SELECT register. For more information on how to use this options,
please refer to Device TRM, Chapter Control Module, Section Pad Configuration Registers.
CAUTION
The IO timings provided in Section 5.9, Timing Requirements and Switching Characteristics are only valid if signals
within a single IOSET are used. The IOSETs are defined in the corresponding tables.
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
65
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-29. Pin Multiplexing
ADDRESS
66
REGISTER NAME
BALL
NUMBER
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
E22
xi_osc0
N2
ddr1_a7
AB4
ddr1_d4
W1
ddr1_dqs2
U3
ddr1_d20
C1
ddr1_a1
M19
adc_in0
U1
ddr1_a9
Y6
ddr1_d7
A15
csi2_0_dx3
V1
ddr1_a15
AA2
ddr1_d17
T1
ddr1_a8
R3
ddr1_a11
AA3
ddr1_d16
Y1
ddr1_d23
Y17
ddr1_d14
AA20
ddr1_dqs1
AA6
ddr1_d0
F3
ddr1_cke0
Y20
ddr1_dqsn1
N21
adc_in5
T2
ddr1_a6
W2
ddr1_dqsn2
E3
ddr1_wen
P18
adc_in7
AA11
ddr1_ecc_d
2
B3
ddr1_ba0
T17
cvideo_tvout
W22
ddr1_d30
B21
xi_osc1
V3
ddr1_d21
T20
ddr1_d25
A11
csi2_0_dx0
G2
ddr1_nck
U21
ddr1_d24
Y9
ddr1_ecc_d
3
1
2
3
4
5
6
7
8
9
Terminal Configuration and Functions
10
11
12
14
15
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
BALL
NUMBER
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
R21
ddr1_d26
U4
ddr1_a0
AB18
ddr1_d15
A3
ddr1_ba1
D2
ddr1_ba2
B15
csi2_0_dy3
AA21
ddr1_d10
AA8
ddr1_d1
B13
csi2_0_dy2
AB8
ddr1_dqm0
M22
adc_in3
D1
ddr1_a10
Y3
ddr1_d18
C21
xo_osc1
M20
adc_in1
R22
ddr1_d28
AA9
ddr1_ecc_d
6
N3
ddr1_a5
P2
ddr1_odt0
T4
ddr1_a4
AB10
ddr1_dqsn_
ecc
AB3
ddr1_dqm2
AA12
ddr1_ecc_d
1
AA4
ddr1_d6
T18
cvideo_rset
N22
adc_in4
R4
ddr1_a3
V20
ddr1_d29
AB13
ddr1_dqm_e
cc
AA5
ddr1_dqs0
A16
csi2_0_dx4
R2
ddr1_a14
Y2
ddr1_d22
Y21
ddr1_d9
W21
ddr1_dqm3
P20
adc_vrefp
1
2
3
4
5
6
7
8
9
10
11
12
14
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
15
67
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-29. Pin Multiplexing (continued)
ADDRESS
68
REGISTER NAME
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
BALL
NUMBER
0
Y5
ddr1_d5
F2
ddr1_casn
AB20
ddr1_d13
B11
csi2_0_dy0
AB9
ddr1_ecc_d
7
D22
xo_osc0
U2
ddr1_a12
P19
adc_in6
AA18
ddr1_d8
U22
ddr1_d31
Y18
ddr1_dqm1
A13
csi2_0_dx2
T22
ddr1_dqsn3
G1
ddr1_ck
P17
cvideo_vfb
G3
porz
T21
ddr1_dqs3
Y22
ddr1_d11
AA19
ddr1_d12
AB5
ddr1_dqsn0
U20
ddr1_d27
AA13
ddr1_ecc_d
4
B16
csi2_0_dy4
F1
ddr1_rasn
D3
ddr1_a2
AA10
ddr1_dqs_e
cc
AA7
ddr1_d3
B2
ddr1_csn0
N1
ddr1_rst
V2
ddr1_d19
Y8
ddr1_d2
B12
csi2_0_dy1
C3
ddr1_a13
A12
csi2_0_dx1
AB11
ddr1_ecc_d
5
M21
adc_in2
1
2
3
4
5
6
7
8
9
Terminal Configuration and Functions
10
11
12
14
15
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
BALL
NUMBER
Y11
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
1
2
3
4
5
6
7
8
9
10
11
12
14
15
ddr1_ecc_d
0
0x1400
CTRL_CORE_PAD_ C12
GPMC_CLK
gpmc_clk
rgmii1_txc
0x1404
CTRL_CORE_PAD_ D12
GPMC_BEN0
gpmc_ben0 rgmii1_txctl
0x1408
CTRL_CORE_PAD_ E12
GPMC_BEN1
0x140C
clkout0
dma_evt1
gpio1_0
Driver off
ehrpwm1A
dma_evt2
gpio1_1
Driver off
gpmc_ben1 rgmii1_txd3
ehrpwm1B
dma_evt3
gpio1_2
Driver off
CTRL_CORE_PAD_ F12
GPMC_ADVN_ALE
gpmc_advn_ rgmii1_txd2
ale
ehrpwm1_tri clkout1
pzone_input
dma_evt4
gpio1_3
Driver off
0x1410
CTRL_CORE_PAD_ A10
GPMC_OEN_REN
gpmc_oen_r rgmii1_txd1
en
ehrpwm1_sy clkout2
nci
gpio1_4
Driver off
0x1414
CTRL_CORE_PAD_ B10
GPMC_WEN
gpmc_wen
rgmii1_txd0
ehrpwm1_sy
nco
gpio1_5
Driver off
0x1418
CTRL_CORE_PAD_ C10
GPMC_CS0
gpmc_cs0
rgmii1_rxctl
gpio1_6
Driver off
0x141C
CTRL_CORE_PAD_ E10
GPMC_CS1
gpmc_cs1
qspi1_cs0
gpio1_7
Driver off
0x1420
CTRL_CORE_PAD_ D10
GPMC_CS2
gpmc_cs2
qspi1_d3
gpio1_8
Driver off
0x1424
CTRL_CORE_PAD_ A9
GPMC_CS3
gpmc_cs3
qspi1_d2
gpio1_9
Driver off
0x1428
CTRL_CORE_PAD_ B9
GPMC_CS4
gpmc_cs4
qspi1_d0
gpio1_10
Driver off
0x142C
CTRL_CORE_PAD_ F10
GPMC_CS5
gpmc_cs5
qspi1_d1
gpio1_11
Driver off
0x1430
CTRL_CORE_PAD_ C8
GPMC_CS6
gpmc_cs6
qspi1_sclk
gpio1_12
Driver off
0x1434
CTRL_CORE_PAD_ D8
GPMC_WAIT0
gpmc_wait0 rgmii1_rxd3 qspi1_rtclk
gpio1_13
Driver off
0x1438
CTRL_CORE_PAD_ E8
GPMC_AD0
gpmc_ad0
rgmii1_rxd2
gpio1_14
sysboot0
0x143C
CTRL_CORE_PAD_ A7
GPMC_AD1
gpmc_ad1
rgmii1_rxd1
gpio1_15
sysboot1
0x1440
CTRL_CORE_PAD_ F8
GPMC_AD2
gpmc_ad2
rgmii1_rxd0
gpio1_16
sysboot2
0x1444
CTRL_CORE_PAD_ B7
GPMC_AD3
gpmc_ad3
qspi1_rtclk
gpio1_17
sysboot3
0x1448
CTRL_CORE_PAD_ A6
GPMC_AD4
gpmc_ad4
cam_strobe
gpio1_18
sysboot4
0x144C
CTRL_CORE_PAD_ F7
GPMC_AD5
gpmc_ad5
uart2_txd
timer6
spi3_d1
gpio1_19
sysboot5
mcasp2_acl
kx
0x1450
CTRL_CORE_PAD_ E7
GPMC_AD6
gpmc_ad6
uart2_rxd
timer5
spi3_d0
gpio1_20
sysboot6
mcasp2_fsx
0x1454
CTRL_CORE_PAD_ C6
GPMC_AD7
gpmc_ad7
timer4
spi3_sclk
gpio1_21
Driver off
mcasp2_ahc
lkx
cam_shutter
dma_evt4
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
69
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
BALL
NUMBER
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
1
2
3
4
5
6
7
8
9
10
11
12
14
15
0x1458
CTRL_CORE_PAD_ B6
GPMC_AD8
gpmc_ad8
timer7
spi3_cs0
gpio1_22
sysboot8
mcasp2_acl
kr
0x145C
CTRL_CORE_PAD_ A5
GPMC_AD9
gpmc_ad9
eCAP1_in_P spi3_cs1
WM1_out
gpio1_23
sysboot9
mcasp2_fsr
0x1460
CTRL_CORE_PAD_ D6
GPMC_AD10
gpmc_ad10
timer2
gpio1_24
sysboot10
mcasp2_axr
0
0x1464
CTRL_CORE_PAD_ C5
GPMC_AD11
gpmc_ad11
timer3
gpio1_25
sysboot11
mcasp2_axr
1
0x1468
CTRL_CORE_PAD_ B5
GPMC_AD12
gpmc_ad12
gpio1_26
sysboot12
mcasp2_axr
2
0x146C
CTRL_CORE_PAD_ D7
GPMC_AD13
gpmc_ad13 rgmii1_rxc
gpio1_27
sysboot13
mcasp2_axr
3
0x1470
CTRL_CORE_PAD_ B4
GPMC_AD14
gpmc_ad14
spi2_cs1
gpio1_28
sysboot14
mcasp2_axr
4
0x1474
CTRL_CORE_PAD_ A4
GPMC_AD15
gpmc_ad15
spi2_cs0
gpio1_29
sysboot15
mcasp2_axr
5
0x1478
CTRL_CORE_PAD_ F22
VIN1A_CLK0
vin1a_clk0
cpi_pclk
clkout0
gpio1_30
Driver off
mcasp3_acl
kx
0x147C
CTRL_CORE_PAD_ F21
VIN1A_DE0
vin1a_de0
cpi_hsync
vin1b_clk1
clkout1
gpio1_31
Driver off
atl_clk1
0x1480
CTRL_CORE_PAD_ F20
VIN1A_FLD0
vin1a_fld0
cpi_vsync
vin2b_clk1
clkout2
gpio2_0
Driver off
mcasp3_acl
kr
0x1484
CTRL_CORE_PAD_ F19
VIN1A_HSYNC0
vin1a_hsync cpi_data0
0
vin1a_de0
gpio2_1
Driver off
mcasp3_fsr
0x1488
CTRL_CORE_PAD_ G19
VIN1A_VSYNC0
vin1a_vsync cpi_data1
0
gpio2_2
Driver off
mcasp3_axr
0
0x148C
CTRL_CORE_PAD_ G18
VIN1A_D0
vin1a_d0
cpi_data2
gpio2_3
Driver off
mcasp3_axr
1
0x1490
CTRL_CORE_PAD_ G21
VIN1A_D1
vin1a_d1
cpi_data3
gpio2_4
Driver off
mcasp3_axr
2
0x1494
CTRL_CORE_PAD_ G22
VIN1A_D2
vin1a_d2
cpi_data4
gpio2_5
Driver off
mcasp3_axr
3
0x1498
CTRL_CORE_PAD_ H18
VIN1A_D3
vin1a_d3
cpi_data5
gpio2_6
Driver off
mcasp3_axr
4
0x149C
CTRL_CORE_PAD_ H20
VIN1A_D4
vin1a_d4
cpi_data6
gpio2_7
Driver off
mcasp3_axr
5
70
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
BALL
NUMBER
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
1
2
3
4
5
6
7
8
9
10
11
12
14
15
0x14A0
CTRL_CORE_PAD_ H19
VIN1A_D5
vin1a_d5
cpi_data7
gpio2_8
xref_clk2
mcasp3_ahc
lkx
0x14A4
CTRL_CORE_PAD_ H22
VIN1A_D6
vin1a_d6
cpi_data8
gpio2_9
Driver off
mcasp3_fsx
0x14A8
CTRL_CORE_PAD_ H21
VIN1A_D7
vin1a_d7
cpi_data9
gpio2_10
Driver off
0x14AC
CTRL_CORE_PAD_ J17
VIN1A_D8
vin1a_d8
cpi_data10
vin1b_d0
gpmc_a8
sys_nirq2
gpio2_11
Driver off
0x14B0
CTRL_CORE_PAD_ K22
VIN1A_D9
vin1a_d9
cpi_data11
vin1b_d1
gpmc_a9
sys_nirq1
gpio2_12
Driver off
0x14B4
CTRL_CORE_PAD_ K21
VIN1A_D10
vin1a_d10
cpi_data12
vin1b_d2
gpmc_a10
sys_nirq2
gpio2_13
Driver off
0x14B8
CTRL_CORE_PAD_ K18
VIN1A_D11
vin1a_d11
cpi_data13
vin1b_d3
gpmc_a11
sys_nirq1
gpio2_14
Driver off
0x14BC
CTRL_CORE_PAD_ K17
VIN1A_D12
vin1a_d12
cpi_data14
vin1b_d4
gpmc_a12
dma_evt1
gpio2_15
Driver off
0x14C0
CTRL_CORE_PAD_ K19
VIN1A_D13
vin1a_d13
cpi_wen
vin1b_d5
gpmc_a13
dma_evt2
gpio2_16
Driver off
0x14C4
CTRL_CORE_PAD_ K20
VIN1A_D14
vin1a_d14
cpi_fid
vin1b_d6
gpmc_a14
gpio2_17
Driver off
0x14C8
CTRL_CORE_PAD_ L21
VIN1A_D15
vin1a_d15
cpi_data15
vin1b_d7
gpmc_a15
gpio2_18
Driver off
0x14CC
CTRL_CORE_PAD_ L22
VIN2A_CLK0
vin2a_clk0
gpio2_19
Driver off
0x14D0
CTRL_CORE_PAD_ M17
VIN2A_DE0
vin2a_de0
cam_strobe vin2b_hsync
1
gpio4_21
Driver off
0x14D4
CTRL_CORE_PAD_ M18
VIN2A_FLD0
vin2a_fld0
cam_shutter vin2b_vsync
1
gpio4_22
Driver off
0x14D8
CTRL_CORE_PAD_ AB17
VOUT1_CLK
vout1_clk
vin1a_d12
clkout0
gpio2_20
Driver off
0x14DC
CTRL_CORE_PAD_ U17
VOUT1_DE
vout1_de
mcasp1_acl vin1a_d13
kx
clkout1
gpio2_21
Driver off
0x14E0
CTRL_CORE_PAD_ W17
VOUT1_FLD
vout1_fld
mcasp1_fsx vin1a_d14
clkout2
gpio2_22
Driver off
0x14E4
CTRL_CORE_PAD_ AA17
VOUT1_HSYNC
vout1_hsync mcasp1_acl vin1a_d15
kr
vin2a_de0
gpio2_23
Driver off
0x14E8
CTRL_CORE_PAD_ U16
VOUT1_VSYNC
vout1_vsync mcasp1_fsr
vin2a_fld0
gpio2_24
Driver off
0x14EC
CTRL_CORE_PAD_ W16
VOUT1_D0
vout1_d0
mcasp1_axr
0
mmc_clk
gpio2_25
Driver off
0x14F0
CTRL_CORE_PAD_ V16
VOUT1_D1
vout1_d1
mcasp1_axr
1
mmc_cmd
gpio2_26
Driver off
0x14F4
CTRL_CORE_PAD_ U15
VOUT1_D2
vout1_d2
mcasp1_axr
2
mcasp1_axr mmc_dat0
8
gpio2_27
Driver off
0x14F8
CTRL_CORE_PAD_ V15
VOUT1_D3
vout1_d3
mcasp1_axr
3
mcasp1_axr mmc_dat1
9
gpio2_28
Driver off
vin2b_de1
vin2a_clk0
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
71
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
BALL
NUMBER
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
1
2
3
4
5
0x14FC
CTRL_CORE_PAD_ Y15
VOUT1_D4
vout1_d4
mcasp1_axr
4
mcasp1_axr mmc_dat2
10
0x1500
CTRL_CORE_PAD_ W15
VOUT1_D5
vout1_d5
mcasp1_axr
5
mcasp1_axr mmc_dat3
11
0x1504
CTRL_CORE_PAD_ AA15
VOUT1_D6
vout1_d6
mcasp1_axr
6
mcasp1_axr
12
0x1508
CTRL_CORE_PAD_ AB15
VOUT1_D7
vout1_d7
mcasp1_axr
7
0x150C
CTRL_CORE_PAD_ AA14
VOUT1_D8
vout1_d8
0x1510
CTRL_CORE_PAD_ AB14
VOUT1_D9
0x1514
6
7
8
9
10
11
12
14
15
gpio2_29
Driver off
vin2a_clk0
gpio2_30
Driver off
emu2
vin2a_de0
gpio2_31
Driver off
eCAP1_in_P mcasp1_axr
WM1_out
13
emu3
vin2a_fld0
gpio3_0
Driver off
mcasp1_axr vin2a_d0
8
gpmc_a20
emu4
gpio3_1
Driver off
vout1_d9
mcasp1_axr vin2a_d1
9
gpmc_a21
emu5
gpio3_2
Driver off
CTRL_CORE_PAD_ U13
VOUT1_D10
vout1_d10
mcasp1_axr vin2a_d2
10
gpmc_a22
emu6
gpio3_3
Driver off
0x1518
CTRL_CORE_PAD_ V13
VOUT1_D11
vout1_d11
mcasp1_axr vin2a_d3
11
gpmc_a23
emu7
gpio3_4
Driver off
0x151C
CTRL_CORE_PAD_ Y13
VOUT1_D12
vout1_d12
mcasp1_axr vin2a_d4
12
gpmc_a24
emu8
gpio3_5
Driver off
mcasp2_ahc
lkx
0x1520
CTRL_CORE_PAD_ W13
VOUT1_D13
vout1_d13
mcasp1_axr vin2a_d5
13
gpmc_a25
emu9
gpio3_6
Driver off
mcasp2_acl
kr
0x1524
CTRL_CORE_PAD_ U11
VOUT1_D14
vout1_d14
mcasp1_axr vin2a_d6
14
gpmc_a26
emu10
gpio3_7
Driver off
mcasp2_acl
kx
0x1528
CTRL_CORE_PAD_ V11
VOUT1_D15
vout1_d15
mcasp1_axr vin2a_d7
15
gpmc_a27
emu11
gpio3_8
Driver off
mcasp2_fsx
0x152C
CTRL_CORE_PAD_ U9
VOUT1_D16
vout1_d16
mcasp1_ahc vin2a_d8
lkx
gpmc_a0
mcasp1_axr vin2b_d0
8
emu12
gpio3_9
Driver off
atl_clk0
0x1530
CTRL_CORE_PAD_ W11
VOUT1_D17
vout1_d17
vin2a_d9
gpmc_a1
mcasp1_axr vin2b_d1
9
emu13
gpio3_10
Driver off
mcasp2_fsr
0x1534
CTRL_CORE_PAD_ V9
VOUT1_D18
vout1_d18
vin2a_d10
gpmc_a2
mcasp1_axr vin2b_d2
10
emu14
gpio3_11
Driver off
mcasp2_axr
0
0x1538
CTRL_CORE_PAD_ W9
VOUT1_D19
vout1_d19
vin2a_d11
gpmc_a3
mcasp1_axr vin2b_d3
11
emu15
gpio3_12
Driver off
mcasp2_axr
1
0x153C
CTRL_CORE_PAD_ U8
VOUT1_D20
vout1_d20
vin2a_d12
gpmc_a4
mcasp1_axr vin2b_d4
12
emu16
gpio3_13
Driver off
mcasp2_axr
2
0x1540
CTRL_CORE_PAD_ W8
VOUT1_D21
vout1_d21
vin2a_d13
gpmc_a5
mcasp1_axr vin2b_d5
13
emu17
gpio3_14
Driver off
mcasp2_axr
3
0x1544
CTRL_CORE_PAD_ U7
VOUT1_D22
vout1_d22
vin2a_d14
gpmc_a6
mcasp1_axr vin2b_d6
14
emu18
gpio3_15
Driver off
mcasp2_axr
4
0x1548
CTRL_CORE_PAD_ V7
VOUT1_D23
vout1_d23
vin2a_d15
gpmc_a7
mcasp1_axr vin2b_d7
15
emu19
gpio3_16
Driver off
mcasp2_axr
5
72
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
BALL
NUMBER
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
0
1
2
3
4
0x154C
CTRL_CORE_PAD_ W7
MCAN_TX
mcan_tx
vin2a_de0
vin2a_hsync spi1_cs2
0
uart3_rxd
0x1550
CTRL_CORE_PAD_ W6
MCAN_RX
mcan_rx
cam_nreset vin2a_vsync spi1_cs3
0
uart3_txd
0x1554
CTRL_CORE_PAD_ B19
MDIO_MCLK
mdio_mclk
0x1558
CTRL_CORE_PAD_ B17
MDIO_D
mdio_d
0x155C
CTRL_CORE_PAD_ C16
RGMII0_TXC
rgmii0_txc
cam_strobe spi4_sclk
0x1560
CTRL_CORE_PAD_ C17
RGMII0_TXCTL
rgmii0_txctl
cam_shutter spi4_cs0
0x1564
CTRL_CORE_PAD_ E16
RGMII0_TXD3
rgmii0_txd3
0x1568
CTRL_CORE_PAD_ D16
RGMII0_TXD2
rgmii0_txd2
0x156C
CTRL_CORE_PAD_ E17
RGMII0_TXD1
0x1570
5
6
7
8
9
10
11
12
14
15
gpio4_11
Driver off
gpio4_12
Driver off
spi4_d1
gpio3_17
Driver off
spi4_d0
gpio3_18
Driver off
mmc_clk
gpio3_19
Driver off
mmc_cmd
gpio3_20
Driver off
mmc_dat0
gpio3_21
Driver off
mmc_dat1
gpio3_22
Driver off
rgmii0_txd1
mmc_dat2
gpio3_23
Driver off
CTRL_CORE_PAD_ F17
RGMII0_TXD0
rgmii0_txd0
mmc_dat3
gpio3_24
Driver off
0x1574
CTRL_CORE_PAD_ B18
RGMII0_RXC
rgmii0_rxc
cam_strobe
mmc_clk
gpio3_25
Driver off
0x1578
CTRL_CORE_PAD_ C18
RGMII0_RXCTL
rgmii0_rxctl
cam_shutter
mmc_cmd
gpio3_26
Driver off
0x157C
CTRL_CORE_PAD_ A19
RGMII0_RXD3
rgmii0_rxd3
mmc_dat0
gpio3_27
Driver off
0x1580
CTRL_CORE_PAD_ B20
RGMII0_RXD2
rgmii0_rxd2
mmc_dat1
gpio3_28
Driver off
0x1584
CTRL_CORE_PAD_ C20
RGMII0_RXD1
rgmii0_rxd1
mmc_dat2
gpio3_29
Driver off
0x1588
CTRL_CORE_PAD_ A20
RGMII0_RXD0
rgmii0_rxd0
mmc_dat3
gpio3_30
Driver off
0x158C
CTRL_CORE_PAD_ M1
XREF_CLK0
xref_clk0
clkout0
gpio3_31
Driver off
0x1590
CTRL_CORE_PAD_ M2
SPI1_SCLK
spi1_sclk
uart3_rxd
gpio4_0
Driver off
0x1594
CTRL_CORE_PAD_ U6
SPI1_D1
spi1_d1
uart3_ctsn
gpio4_1
Driver off
0x1598
CTRL_CORE_PAD_ T5
SPI1_D0
spi1_d0
uart3_rtsn
gpio4_2
Driver off
0x159C
CTRL_CORE_PAD_ R6
SPI1_CS0
spi1_cs0
uart3_txd
gpio4_3
Driver off
0x15A0
CTRL_CORE_PAD_ R5
SPI1_CS1
spi1_cs1
spi3_cs1
gpio4_4
Driver off
0x15A4
CTRL_CORE_PAD_ L1
SPI2_SCLK
spi2_sclk
uart3_rxd
gpio4_5
Driver off
0x15A8
CTRL_CORE_PAD_ N4
SPI2_D1
spi2_d1
uart3_ctsn
gpio4_6
Driver off
eCAP1_in_P
WM1_out
spi3_cs0
timer6
ehrpwm1A
gpmc_wait1 vin1b_hsync vin1b_de1
1
gpmc_cs7
spi2_cs1
vin1b_vsync
1
spi1_cs0
spi1_cs1
ehrpwm1_tri
pzone_input
timer3
timer5
eCAP1_in_P
WM1_out
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
73
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
BALL
NUMBER
0
1
0x15AC
CTRL_CORE_PAD_ R7
SPI2_D0
spi2_d0
uart3_rtsn
0x15B0
CTRL_CORE_PAD_ L2
SPI2_CS0
spi2_cs0
uart3_txd
0x15B8
CTRL_CORE_PAD_ N6
DCAN1_RX
0x15B4
2
3
4
5
6
7
8
9
10
11
12
14
15
timer1
gpio4_7
sysboot7
timer4
gpio4_8
Driver off
dcan1_rx
gpio4_10
Driver off
CTRL_CORE_PAD_ N5
DCAN1_TX
dcan1_tx
gpio4_9
Driver off
0x15BC
CTRL_CORE_PAD_ F13
UART1_RXD
uart1_rxd
spi4_d1
0x15C0
CTRL_CORE_PAD_ E14
UART1_TXD
uart1_txd
spi4_d0
0x15C4
CTRL_CORE_PAD_ F14
UART1_CTSN
uart1_ctsn
0x15C8
CTRL_CORE_PAD_ C14
UART1_RTSN
uart1_rtsn
0x15CC
CTRL_CORE_PAD_ D14
UART2_RXD
uart2_rxd
0x15D0
CTRL_CORE_PAD_ D15
UART2_TXD
uart2_txd
0x15D4
CTRL_CORE_PAD_ F15
UART2_CTSN
uart2_ctsn
0x15D8
CTRL_CORE_PAD_ F16
UART2_RTSN
uart2_rtsn
0x15DC
CTRL_CORE_PAD_ L4
I2C1_SDA
i2c1_sda
0x15E0
CTRL_CORE_PAD_ L3
I2C1_SCL
i2c1_scl
0x15E4
CTRL_CORE_PAD_ L5
I2C2_SDA
i2c2_sda
0x15E8
CTRL_CORE_PAD_ L6
I2C2_SCL
i2c2_scl
0x15EC
CTRL_CORE_PAD_ J3
TMS
tms
0x15F0
CTRL_CORE_PAD_ J1
TDI
0x15F4
ehrpwm1B
xref_clk1
qspi1_rtclk
gpmc_a12
mcan_tx
gpio4_13
Driver off
gpmc_a13
mcan_rx
gpio4_14
Driver off
dcan1_tx
gpio4_15
Driver off
dcan1_rx
gpio4_16
Driver off
gpmc_a12
dcan1_tx
gpio4_17
Driver off
gpmc_a13
dcan1_rx
gpio4_18
Driver off
uart3_rxd
gpmc_a16
spi4_sclk
spi1_cs2
timer3
ehrpwm1_sy clkout0
nci
vin2a_hsync gpmc_a12
0
uart3_txd
gpmc_a17
spi4_cs0
spi1_cs3
timer4
ehrpwm1_sy qspi1_rtclk
nco
vin2a_vsync gpmc_a13
0
spi3_d1
timer1
ehrpwm1A
spi3_d0
timer2
ehrpwm1B
timer7
vin2a_hsync gpmc_clk
0
mcan_tx
gpio4_19
Driver off
timer8
vin2a_vsync
0
mcan_rx
gpio4_20
Driver off
tdi
gpio4_25
Driver off
CTRL_CORE_PAD_ J4
TDO
tdo
gpio4_26
Driver off
0x15F8
CTRL_CORE_PAD_ J2
TCLK
tclk
0x15FC
CTRL_CORE_PAD_ J5
TRSTN
trstn
0x1600
CTRL_CORE_PAD_ J6
RTCK
rtck
gpio4_27
Driver off
0x1604
CTRL_CORE_PAD_ H1
EMU0
emu0
gpio4_28
Driver off
0x1608
CTRL_CORE_PAD_ H2
EMU1
emu1
gpio4_29
Driver off
74
xref_clk1
eCAP1_in_P
WM1_out
gpmc_a18
spi3_sclk
gpmc_a19
spi3_cs0
qspi1_cs1
gpmc_clk
gpmc_clk
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 4-29. Pin Multiplexing (continued)
ADDRESS
REGISTER NAME
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
BALL
NUMBER
0
0x160C
CTRL_CORE_PAD_ G4
RESETN
resetn
0x1610
CTRL_CORE_PAD_ G5
NMIN
nmin
0x1614
CTRL_CORE_PAD_ F4
RSTOUTN
rstoutn
1
2
3
4
5
6
7
8
9
10
11
12
14
15
1. NA in table stands for Not Applicable.
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
75
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
4.5
www.ti.com
Connections for Unused Pins
This section describes the connection requirements of the unused and reserved balls.
NOTE
The following balls are reserved: A2 / F6 / A21 / B1
These balls must be left unconnected.
NOTE
All unused power supply balls must be supplied with the voltages specified in the
Section 5.4, Recommended Operating Conditions, unless alternative tie-off options are
included in Section 4.3, Signal Descriptions.
Table 4-30. Unused Balls Specific Connection Requirements
Balls
Connection Requirements
B21 / E22 / J5/ AA10
These balls must be connected to GND through an external pull
resistor if unused
J2 / G5 / G4 / L3 / L4 / AB10 / J3
These balls must be connect to the corresponding power supply
through an external pull resistor if unused
M19 / M20 / M21 / M22 / N22 / N21 / P19 / P18 / P20
These balls must be connected together to GND through a single
external 10k-ohm resistor if unused.
NOTE
All other unused signal balls with a Pad Configuration Register can be left unconnected with
their internal pullup or pulldown resistor enabled.
NOTE
All other unused signal balls without Pad Configuration Register can be left unconnected.
76
Terminal Configuration and Functions
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
5 Specifications
NOTE
For more information, see Power, Reset and Clock Management / PRCM Subsystem
Environment / External Voltage Inputs or Initialization / Preinitialization / Power Requirements
section of the Device TRM.
NOTE
The index number 1 which is part of the EMIF1 signal prefixes (ddr1_*) listed in
Section 4.3.8, EMIF, column "SIGNAL NAME" are not to be confused with DDR1 type of
SDRAM memories.
NOTE
Audio Back End (ABE) module is not supported for this family of devices, but “ABE” name is
still present in some clock or DPLL names.
CAUTION
All IO Cells are NOT Fail-safe compliant and should not be externally driven in
absence of their IO supply.
5.1
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
PARAMETER(3)
VSUPPLY (Steady-State)
VIO (Steady-State)
Supply Voltage Ranges (SteadyState)
Input and Output Voltage Ranges
(Steady-State)
MIN
MAX
UNIT
Core (vdd, vdd_dspeve)
-0.3
1.5
V
Analog (vdda_per, vdda_ddr_dsp,
vdda_gmac_core, vdda_osc,
vdda_csi, vdda_dac, vdda_adc)
-0.3
2.0
V
vdds_ddr1, vdds_ddr2, vdds_ddr3
(1.35V mode)
-0.3
1.65
V
vdds_ddr1, vdds_ddr2, vdds_ddr3
(1.5V mode)
-0.3
1.8
V
vdds18v, vdds18v_ddr1,
vdds18v_ddr2, vdds18v_ddr3
-0.3
2.1
V
vddshv1-6 (1.8V mode)
-0.3
2.1
V
vddshv1-6 (3.3V mode)
-0.3
3.8
V
Core I/Os
-0.3
1.5
V
Analog I/Os
-0.3
2.0
V
I/O 1.35V
-0.3
1.65
V
I/O 1.5V
-0.3
1.8
V
1.8V I/Os
-0.3
2.1
V
3.3V I/Os
-0.3
3.8
V
105
V/s
0.2*VDD
V
-40
+125
°C
-55
+150
°C
I-test(5), All I/Os (if different levels then one line per level)
-100
100
mA
Over-voltage Test(6), All supplies (if different levels then one line per level)
N/A
1.5*Vsup
ply max
V
SR
Maximum slew rate, all supplies
VIO (Transient Overshoot /
Undershoot)
Input and Output Voltage Ranges (Transient Overshoot / Undershoot)
Note: valid for up to 20% of the signal period
TJ
Operating junction temperature range
TSTG
Storage temperature range after soldered onto PC Board
Latch-up I-Test
Latch-up OV-Test
Automotive
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
(4)
Specifications
77
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(1) Stresses beyond those listed as absolute maximum ratings may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those listed under Section 5.4, Recommended Operating
Conditions, is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to VSS, unless otherwise noted.
(3) See I/Os supplied by this power pin in Table 4-1 Pin Attributes.
(4) VDD is the voltage on the corresponding power-supply pin(s) for the IO.
(5) Per JEDEC JESD78 at 125°C with specified I/O pin injection current and clamp voltage of 1.5 times maximum recommended I/O
voltage and negative 0.5 times maximum recommended I/O voltage.
(6) Per JEDEC JESD78 at 125°C.
5.2
ESD Ratings
VALUE
Human-Body model (HBM), per AEC Q100-002(1)
VESD Electrostatic discharge
Charged-device model (CDM), per AEC
Q100-011
UNIT
±1000
All pins
±250
Corner pins (A1,
AB1, A22, AB22)
±750
V
(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
5.3
Power on Hour (POH) Limits
IP
Duty Cycle
Voltage Domain
All
100%
All
Voltage (V) (max)
Frequency (MHz)
(max)
All Support OPPs
Tj(°C)
POH
Automotive Profile(1)
20000
(1) Automotive profile is defined as 20000 power on hours with junction temperature as follows: 5%@-40°C, 65%@70°C, 20%@110°C,
10%@125°C.
78
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
5.4
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
PARAMETER
DESCRIPTION
MIN (2)
NOM
MAX DC (3)
MAX (2)
UNIT
Input Power Supply Voltage Range
vdd
Core voltage domain supply
See Section 5.5
vdd_dspeve
DSP-EVE voltage domain supply
See Section 5.5
vdda_per
PER PLL and PER HSDIVIDER
analog power supply
1.71
1.80
1.71
1.80
1.71
1.80
1.71
1.80
1.71
1.80
Maximum noise (peak-peak)
vdda_ddr_dsp
EVE PLL, DPLL_DDR and DDR
HSDIVIDER analog power supply
GMAC PLL, GMAC HSDIVIDER,
DPLL_CORE and CORE HSDIVIDER
analog power supply
I/O supply for oscillator section
CSI analog power supply
DAC analog power supply
ADC analog power supply
1.71
1.80
1.71
1.80
1.8V power supply and Power Group
bias supply
1.8v bias supply for Byte0, Byte2,
ECC Byte, Addr Cmd
1.71
1.80
1.71
1.80
1.8v bias supply for Addr Cmd
1.71
1.80
1.8v bias supply for Byte1, Byte3
1.71
1.80
1.89
V
mVPPmax
V
mVPPmax
1.836
1.89
1.836
1.89
V
mVPPmax
V
mVPPmax
1.836
1.89
1.836
1.89
1.836
1.89
1.836
1.89
V
mVPPmax
V
mVPPmax
50
Maximum noise (peak-peak)
vdds_ddr1
1.836
V
mVPPmax
50
Maximum noise (peak-peak)
vdds18v_ddr3
1.89
50
Maximum noise (peak-peak)
vdds18v_ddr2
1.836
V
mVPPmax
50
Maximum noise (peak-peak)
vdds18v_ddr1
1.89
50
Maximum noise (peak-peak)
vdds18v
1.836
V
mVPPmax
50
Maximum noise (peak-peak)
vdda_adc
1.89
50
Maximum noise (peak-peak)
vdda_dac
1.836
50
Maximum noise (peak-peak)
vdda_csi
1.89
50
Maximum noise (peak-peak)
vdda_osc
V
1.836
50
Maximum noise (peak-peak)
vdda_gmac_core
V
V
mVPPmax
50
V
mVPPmax
EMIF power supply
(1.5V for DDR3 mode /
1.35V DDR3L mode)
1.35-V
Mode
1.28
1.35
1.377
1.42
1.5-V Mode
1.43
1.50
1.53
1.57
Maximum noise (peakpeak)
1.35-V
Mode
50
V
mVPPmax
1.5-V Mode
vdds_ddr2
EMIF power supply
(1.5V for DDR3 mode /
1.35V DDR3L mode)
1.35-V
Mode
1.28
1.35
1.377
1.42
1.5-V Mode
1.43
1.50
1.53
1.57
Maximum noise (peakpeak)
1.35-V
Mode
50
V
mVPPmax
1.5-V Mode
vdds_ddr3
EMIF power supply
(1.5V for DDR3 mode /
1.35V DDR3L mode)
1.35-V
Mode
1.28
1.35
1.377
1.42
1.5-V Mode
1.43
1.50
1.53
1.57
Maximum noise (peakpeak)
1.35-V
Mode
50
V
mVPPmax
1.5-V Mode
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
79
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
over operating free-air temperature range (unless otherwise noted)
PARAMETER
vddshv1
vddshv2
vddshv3
vddshv4
vddshv5
vddshv6
DESCRIPTION
MIN (2)
NOM
MAX DC (3)
MAX (2)
UNIT
V
Dual Voltage (1.8V or
3.3V) power supply for
the GENERAL Power
Group pins
1.8-V Mode
1.71
1.80
1.836
1.89
3.3-V Mode
3.135
3.30
3.366
3.465
Maximum noise (peakpeak)
1.8-V Mode
50
mVPPmax
3.3-V Mode
Dual Voltage (1.8V or
1.8-V Mode
3.3V) power supply for
3.3-V Mode
the GPMC Power Group
pins
1.71
1.80
1.836
1.89
3.135
3.30
3.366
3.465
Maximum noise (peakpeak)
1.8-V Mode
50
Dual Voltage (1.8V or
3.3V) power supply for
the UART1 and UART2
Power Group pins
1.8-V Mode
1.71
1.80
1.836
1.89
3.3-V Mode
3.135
3.30
3.366
3.465
Maximum noise (peakpeak)
1.8-V Mode
Dual Voltage (1.8V or
3.3V) power supply for
the RGMII Power Group
pins
1.8-V Mode
1.71
1.80
1.836
1.89
3.3-V Mode
3.135
3.30
3.366
3.465
Maximum noise (peakpeak)
1.8-V Mode
Dual Voltage (1.8V or
3.3V) power supply for
the VIN1 Power Group
pins
1.8-V Mode
1.71
1.80
1.836
1.89
3.3-V Mode
3.135
3.30
3.366
3.465
Maximum noise (peakpeak)
1.8-V Mode
Dual Voltage (1.8V or
3.3V) power supply for
the VOUT1 Power
Group pins
1.8-V Mode
1.71
1.80
1.836
1.89
3.3-V Mode
3.135
3.30
3.366
3.465
Maximum noise (peakpeak)
1.8-V Mode
V
mVPPmax
3.3-V Mode
50
V
mVPPmax
3.3-V Mode
50
V
mVPPmax
3.3-V Mode
50
V
mVPPmax
3.3-V Mode
50
V
mVPPmax
3.3-V Mode
vss
Ground supply
0
V
vssa_osc0
OSC0 analog ground
0
V
vssa_osc1
OSC1 analog ground
0
V
vssa_csi
CSI analog ground supply
0
V
vssa_dac
DAC analog ground supply
0
V
vssa_adc
ADC analog ground supply
0
V
(1)
TJ
Operating junction
temperature range
Automotive
-40
125
°C
(1) Refer to Power on Hours table for limitations.
(2) The voltage at the device ball should never be below the MIN voltage or above the MAX voltage for any amount of time. This
requirement includes dynamic voltage events such as AC ripple, voltage transients, voltage dips, etc.
(3) The DC voltage at the device ball should never be above the MAX DC voltage to avoid impact on device reliability and lifetime POH
(Power-On-Hours). The MAX DC voltage is defined as the highest allowed DC regulated voltage, without transients, seen at the ball.
5.5
Operating Performance Points
This section describes the operating conditions of the device. This section also contains the description of
each OPP (operating performance point) for processor clocks and device core clocks.
Table 5-1 describes the maximum supported frequency per speed grade for the devices.
80
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-1. Speed Grade Maximum Frequency
Device Speed
Maximum frequency (MHz)
DSP
EVE
IPU
L3
DDR3/DDR3L
DDR2
ADC
DRA78xxD
500
500
212.8
266
532 (DDR-1066)
400 (DDR-800)
20
DRA78xxR
750
667
212.8
266
532 (DDR-1066)
400 (DDR-800)
20
5.5.1
AVS Requirements
Adaptive Voltage Scaling (AVS) is required on most of the vdd_* supplies as defined in Table 5-2.
Table 5-2. AVS Requirements per vdd_* Supply
5.5.2
Supply
AVS Required?
vdd
Yes, for all OPPs
vdd_dspeve
Yes, for all OPPs
Voltage And Core Clock Specifications
Table 5-3 shows the recommended OPP per voltage domain.
Table 5-3. Voltage Domains Operating Performance Points
DOMAIN
CONDITION
BOOT (Before
AVS is enabled)
(4)
VD_CORE (V)
After AVS is
enabled (4)
BOOT (Before
AVS is enabled)
(4)
VD_DSPEVE
(V)
After AVS is
enabled (4)
OPP_NOM
MIN
(2)
1.02
AVS
Voltage
(5)
–
3.5%
1.02
AVS
Voltage
(5)
–
3.5%
NOM
(1)
OPP_OD
MAX
(2)
MIN
(2)
NOM
(1)
OPP_HIGH
MAX
(2)
MIN
(2)
NOM (1) MAX DC (3)
1.06
1.11
Not Applicable
Not Applicable
AVS
Voltage
1.11
Not Applicable
Not Applicable
1.06
1.11
Not Applicable
Not Applicable
(5)
AVS
Voltage
(5)
1.11
AVS
Voltage
(5)
–
3.5%
AVS
Voltage
(5)
AVS
Voltage
(5)
+ 5%
AVS
Voltage
(5)
–
3.5%
AVS
Voltage
(5)
AVS
Voltage (5)
+ 2%
MAX (2)
AVS
Voltage
+ 5%
(5)
(1) In a typical implementation, the power supply should target the NOM voltage.
(2) The voltage at the device ball should never be below the MIN voltage or above the MAX voltage for any amount of time. This
requirement includes dynamic voltage events such as AC ripple, voltage transients, voltage dips, etc.
(3) The DC voltage at the device ball should never be above the MAX DC voltage to avoid impact on device reliability and lifetime POH
(Power-On-Hours). The MAX DC voltage is defined as the highest allowed DC regulated voltage, without transients, seen at the ball.
(4) For all OPPs, AVS must be enabled to avoid impact on device reliability, lifetime POH (Power-On-Hours), and device power.
(5) The AVS voltages are device-dependent, voltage domain-dependent, and OPP-dependent. They must be read from the
STD_FUSE_OPP. For information about STD_FUSE_OPP Registers address, please refer to Control Module Section of the TRM. The
power supply should be adjustable over the following ranges for each required OPP:
– OPP_NOM: 0.85V - 1.06V
– OPP_OD: 0.94V - 1.15V
– OPP_HIGH: 1.05V - 1.25V
The AVS Voltages will be within the above specified ranges.
Table 5-4 describes the standard processor clocks speed characteristics vs OPP of the device.
Table 5-4. Supported OPP vs Max Frequency(2)
DESCRIPTION
OPP_NOM
OPP_OD
OPP_HIGH
Max Freq. (MHz)
Max Freq. (MHz)
Max Freq. (MHz)
VD_DSPEVE
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
81
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-4. Supported OPP vs Max Frequency(2) (continued)
DESCRIPTION
OPP_NOM
OPP_OD
OPP_HIGH
Max Freq. (MHz)
Max Freq. (MHz)
Max Freq. (MHz)
DSP_CLK
500
709
750
EVE_FCLK
500
667
667
212.8
N/A
N/A
266
N/A
N/A
DDR3 / DDR3L
532 (DDR-1066)
N/A
N/A
DDR2
400 (DDR-800)
N/A
N/A
20
N/A
N/A
VD_CORE
CORE_IPU1_CLK
L3_CLK
ADC
(1) N/A in this table stands for Not Applicable.
(2) Maximum supported frequency is limited according to the Device Speed Grade (see Table 5-1).
5.5.3
Maximum Supported Frequency
Device modules either receive their clock directly from an external clock input, directly from a PLL, or from
a PRCM. Table 5-5 lists the clock source options for each module on this device, along with the maximum
frequency that module can accept. To ensure proper module functionality, the device PLLs and dividers
must be programmed not to exceed the maximum frequencies listed in this table.
82
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-5. Maximum Supported Frequency
Module
Instance Name
Input Clock Name
ADC
ATL
Clock Sources
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
OCP_CLK
Int
38.4
WKUPAON_GICLK
SYS_CLK1
OSC0
ADC_CLK
Func
20
ADC_GFCLK
CORE_X2_CLK
DPLL_CORE
ATL_ICLK_L3
Int
266
ATL_L3_GICLK
CORE_X2_CLK
DPLL_CORE
ATLPCLK
Func
266
ATL_GFCLK
CORE_X2_CLK
DPLL_CORE
FUNC_32K_CLK
OSC1
RTC Oscillator
COUNTER_32K
COUNTER_32K_FC
LK
Func
0.032
FUNC_32K_CLK
SYS_CLK1/610
OSC1
COUNTER_32K_IC
LK
Int
38.4
WKUPAON_GICLK
SYS_CLK1
OSC0
CTRL_MODULE_ L3INSTR_TS_GCLK
BANDGAP
Int
5
L3INSTR_TS_GCLK
SYS_CLK1
OSC0
CTRL_MODULE_
CORE
L4CFG_L4_GICLK
Int
133
L4CFG_L4_GICLK
CORE_X2_CLK
DPLL_CORE
CTRL_MODULE_
WKUP
WKUPAON_GICLK
Int
38.4
WKUPAON_GICLK
SYS_CLK1
OSC0
DCAN1
DCAN1_FCLK
Func
20
DCAN1_SYS_CLK
SYS_CLK1
OSC0
SYS_CLK2
OSC1
OSC0
MCAN
DCAN1_ICLK
Int
133
WKUPAON_GICLK
SYS_CLK1
MCAN_FCLK
Func
20
MCAN_CLK
SYS_CLK1
OSC0
MCAN_ICLK
Int
133
L4PER2_L3_GICLK
CORE_X2_CLK
DPLL_CORE
DLL
EMIF_DLL_FCLK
Func
266
EMIF_DLL_GCLK
EMIF_DLL_GCLK
DPLL_DDR
DSP1
DSP1_FICLK
Int & Func
DSP_CLK
DSP1_GFCLK
DSP_GFCLK
DPLL_DSP
DSP2
DSP2_FICLK
Int & Func
DSP_CLK
DSP2_GFCLK
DSP_GFCLK
DPLL_DSP
DSS
DSS_FCK_CLK
Int & Func
192
DSS_GFCLK
DSS_GFCLK
DPLL_PER
DSS_VP_CLK
Func
165
VID_PIX_CLK
VID_PIX_CLK
DPLL_EVE_VID_DS
P
DISPC_FCK_CLK
Int & Func
192
DSS_GFCLK
DSS_GFCLK
DPLL_PER
DISPC_CLK1
Int
165
VID_PIX_CLK
VID_PIX_CLK
DPLL_EVE_VID_DS
P
ocp_clk
Int
133
CUSTEFUSE_L4_G
ICLK
CORE_X2_CLK
DPLL_CORE
sys_clk
Func
38.4
CUSTEFUSE_SYS_
GFCLK
SYS_CLK1
OSC0
ELM_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
DSS DISPC
EFUSE_CTRL_C
UST
ELM
EMIF_OCP_FW
EMIF_PHY
EMIF
EVE
L3_CLK
Int
266
EMIF_L3_GICLK
CORE_X2_CLK
DPLL_CORE
L4_CLKEN
Int
133
EMIF_L4_GICLK
CORE_X2_CLK
DPLL_CORE
EMIF_PHY1_FCLK
Func
DDR
EMIF_PHY_GCLK
EMIF_PHY_GCLK
DPLL_DDR
DPLL_CORE
EMIF_ICLK
Int
266
EMIF_L3_GICLK
CORE_X2_CLK
EMIF_L3_ICLK
Int
266
L3_EOCP_GICLK
-
-
EMIF_PHY_FCLK
Func
532
EMIF_PHY_GCLK
EMIF_PHY_GCLK
DPLL_DDR
EMIF_DLL_FCLK
Int
266
EMIF_DLL_GCLK
-
DPLL_DDR
EVE_FCLK
Func
EVE_FCLK
EVE_GFCLK
EVE_GCLK
DPLL_DSP
EVE_GFCLK
DPLL_EVE
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
83
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
GMAC_SW
CPTS_RFT_CLK
Func
266
GMAC_RFT_CLK
L3_ICLK
SYS_CLK1
OSC0
MAIN_CLK
Int
125
GMAC_MAIN_CLK
GMAC_250M_CLK
DPLL_GMAC
MHZ_250_CLK
Func
250
GMII_250MHZ_CLK
GMII_250MHZ_CLK
DPLL_GMAC
MHZ_5_CLK
Func
5
RGMII_5MHZ_CLK
RGMII_5MHZ_CLK
RMII_CLK
MHZ_50_CLK
Func
50
RMII_50MHZ_CLK
GMAC_RMII_HS_
CLK
DPLL_GMAC
GPIO1_ICLK
Int
38.4
WKUPAON_GICLK
SYS_CLK1
OSC0
GPIO1_DBCLK
Func
0.032
WKUPAON_SYS_G
FCLK
WKUPAON_32K_G
FCLK
OSC0
GPIO1
GPIO2
GPIO3
GPIO4
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
DPLL_CORE
GPIO2_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
GPIO2_DBCLK
Func
0.032
GPIO_GFCLK
FUNC_32K_CLK
OSC0
DPLL_CORE
GPIO3_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
GPIO3_DBCLK
Func
0.032
GPIO_GFCLK
FUNC_32K_CLK
OSC0
GPIO4_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
GPIO4_DBCLK
Func
0.032
GPIO_GFCLK
FUNC_32K_CLK
OSC0
GPMC
GPMC_ICLK
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
I2C1
I2C1_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
I2C1_FCLK
Func
96
PER_96M_GFCLK
FUNC_192M_CLK
DPLL_PER
I2C2_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
I2C2_FCLK
Func
96
PER_96M_GFCLK
FUNC_192M_CLK
DPLL_PER
IEEE1500_2_OC
P
PI_L3CLK
Int & Func
266
L3INIT_L3_GICLK
CORE_X2_CLK
DPLL_CORE
IPU1
IPU1_GFCLK
Int & Func
IPU_CLK
IPU1_GFCLK
SYS_CLK1
OSC0
CORE_IPU_ISS_BO
OST_CLK
DPLL_CORE
I2C2
L3_INSTR
84
L3_CLK
Int
L3_CLK
L3INSTR_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
L4_CFG
L4_CFG_CLK
Int
133
L4CFG_L3_GICLK
CORE_X2_CLK
DPLL_CORE
L4_PER1
L4_PER1_CLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
L4_PER2
L4_PER2_CLK
Int
133
L4PER2_L3_GICLK
CORE_X2_CLK
DPLL_CORE
DPLL_CORE
L4_PER3
L4_PER3_CLK
Int
133
L4PER3_L3_GICLK
CORE_X2_CLK
L4_WKUP
L4_WKUP_CLK
Int
38.4
WKUPAON_GICLK
SYS_CLK1
OSC0
MAILBOX1
MAILBOX1_FLCK
Int
133
L4CFG_L3_GICLK
CORE_X2_CLK
DPLL_CORE
MAILBOX2
MAILBOX2_FLCK
Int
133
L4CFG_L3_GICLK
CORE_X2_CLK
DPLL_CORE
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
MCASP1
MCASP1_AHCLKR
Func
100
MCASP1_AHCLKR
MCASP1_AHCLKX
Func
100
MCASP1_AHCLKX
MCASP1_FCLK
Func
10
MCASP1_AUX_GF
CLK
MCASP1_ICLK
Int
133
IPU_L3_GICLK
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
ABE_24M_GFCLK
DPLL_DDR
ABE_SYS_CLK
SYS_CLK1
FUNC_24M_GFCLK
DPLL_PER
SYS_CLK1
OSC0
ATL_CLK0
Module ATL
ATL_CLK1
Module ATL
ATL_CLK2
Module ATL
ATL_CLK3
Module ATL
SYS_CLK2
OSC1
XREF_CLK0
REF_CLKIN0
XREF_CLK1
REF_CLKIN1
XREF_CLK2
REF_CLKIN2
ABE_24M_GFCLK
DPLL_DDR
ABE_SYS_CLK
SYS_CLK1
FUNC_24M_GFCLK
DPLL_PER
SYS_CLK1
OSC0
ATL_CLK0
Module ATL
ATL_CLK1
Module ATL
ATL_CLK2
Module ATL
ATL_CLK3
Module ATL
SYS_CLK2
OSC1
XREF_CLK0
REF_CLKIN0
XREF_CLK1
REF_CLKIN1
XREF_CLK2
REF_CLKIN2
L4_ICLK
DPLL_CORE
SYS_CLK1
OSC0
CORE_X2_CLK
DPLL_CORE
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
85
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
MCASP2
MCASP2_AHCLKR
Func
100
MCASP6_AHCLKR
MCASP2_AHCLKX
86
Specifications
Func
100
MCASP4_AHCLKX
MCASP2_FCLK
Func
10
MCASP4_AUX_GF
CLK
MCASP2_ICLK
Int
133
IPU_L3_GICLK
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
ABE_24M_GFCLK
DPLL_DDR
ABE_SYS_CLK
SYS_CLK1
FUNC_24M_GFCLK
DPLL_PER
SYS_CLK1
OSC0
ATL_CLK0
Module ATL
ATL_CLK1
Module ATL
ATL_CLK2
Module ATL
ATL_CLK3
Module ATL
SYS_CLK2
OSC1
XREF_CLK0
REF_CLKIN0
XREF_CLK1
REF_CLKIN1
XREF_CLK2
REF_CLKIN2
ABE_24M_GFCLK
DPLL_DDR
ABE_SYS_CLK
SYS_CLK1
FUNC_24M_GFCLK
DPLL_PER
SYS_CLK1
OSC0
ATL_CLK0
Module ATL
ATL_CLK1
Module ATL
ATL_CLK2
Module ATL
ATL_CLK3
Module ATL
SYS_CLK2
OSC1
XREF_CLK0
REF_CLKIN0
XREF_CLK1
REF_CLKIN1
XREF_CLK2
REF_CLKIN2
L4_ICLK
DPLL_CORE
SYS_CLK1
OSC0
CORE_X2_CLK
DPLL_CORE
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
MCASP3
MCASP3_AHCLKR
Func
100
MCASP7_AHCLKR
MCASP3_AHCLKX
MCSPI1
MCSPI2
MCSPI3
MCSPI4
MMC1
Func
100
MCASP5_AHCLKX
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
ABE_24M_GFCLK
DPLL_DDR
ABE_SYS_CLK
SYS_CLK1
FUNC_24M_GFCLK
DPLL_PER
SYS_CLK1
OSC0
ATL_CLK0
Module ATL
ATL_CLK1
Module ATL
ATL_CLK2
Module ATL
ATL_CLK3
Module ATL
SYS_CLK2
OSC1
XREF_CLK0
REF_CLKIN0
XREF_CLK1
REF_CLKIN1
XREF_CLK2
REF_CLKIN2
ABE_24M_GFCLK
DPLL_DDR
ABE_SYS_CLK
SYS_CLK1
FUNC_24M_GFCLK
DPLL_PER
SYS_CLK1
OSC0
ATL_CLK0
Module ATL
ATL_CLK1
Module ATL
ATL_CLK2
Module ATL
ATL_CLK3
Module ATL
SYS_CLK2
OSC1
XREF_CLK0
REF_CLKIN0
XREF_CLK1
REF_CLKIN1
XREF_CLK2
REF_CLKIN2
L4_ICLK
DPLL_CORE
MCASP3_FCLK
Func
10
MCASP5_AUX_GF
CLK
SYS_CLK1
OSC0
MCASP3_ICLK
Int
133
IPU_L3_GICLK
CORE_X2_CLK
DPLL_CORE
SPI1_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
SPI1_FCLK
Func
48
PER_48M_GFCLK
FUNC_192M_CLK
DPLL_PER
SPI1_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
SPI1_FCLK
Func
48
PER_48M_GFCLK
FUNC_192M_CLK
DPLL_PER
DPLL_CORE
SPI1_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
SPI1_FCLK
Func
48
PER_48M_GFCLK
FUNC_192M_CLK
DPLL_PER
SPI1_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
SPI1_FCLK
Func
48
PER_48M_GFCLK
FUNC_192M_CLK
DPLL_PER
MMC1_CLK_32K
Func
0.032
L3INIT_32K_GFCLK
FUNC_32K_CLK
OSC0
MMC1_FCLK
Func
192
MMC1_GFCLK
FUNC_192M_CLK
DPLL_PER
FUNC_128M_CLK
DPLL_PER
128
MMC1_ICLK1
Int
266
L3INIT_L3_GICLK
CORE_X2_CLK
DPLL_CORE
MMC1_ICLK2
Int
266
L3INIT_L4_GICLK
CORE_X2_CLK
DPLL_CORE
MMU_EDMA
MMU1_CLK
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
OCMC_RAM1
OCMC_L3_CLK_1
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
OCP_WP_NOC
PICLKOCPL3
Int
266
L3INSTR_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
87
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
OCP2SCP1
L4CFG_ADAPTER_
CLKIN_1
Int
133
L3INIT_L4_GICLK
CORE_X2_CLK
DPLL_CORE
PWMSS1
PWMSS1_GICLK
Int & Func
133
L4PER2_L3_GICLK
CORE_X2_CLK
DPLL_CORE
QSPI
QSPI_ICLK
Int
266
L4PER2_L3_GICLK
CORE_X2_CLK
DPLL_CORE
QSPI_FCLK
Func
128
QSPI_GFCLK
FUNC_128M_CLK
DPLL_PER
PER_QSPI_CLK
DPLL_PER
OCP_CLK_PI
Int
133
L4_ICLK
CORE_X2_CLK
DPLL_CORE
RTI_CLK_PI
Counter
13
RTI_CLK
SYS_CLK1
OSC0
SYS_CLK2
OSC1
RTI1
RTI2
RTI3
RTI4
RTI5
SD_DAC
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
FUNC_32K_CLK
OSC0
OCP_CLK_PI
Int
133
L4_ICLK
CORE_X2_CLK
DPLL_CORE
RTI_CLK_PI
Counter
13
RTI_CLK
SYS_CLK1
OSC0
SYS_CLK2
OSC1
FUNC_32K_CLK
OSC0
OCP_CLK_PI
Int
133
L4_ICLK
CORE_X2_CLK
DPLL_CORE
RTI_CLK_PI
Counter
13
RTI_CLK
SYS_CLK1
OSC0
SYS_CLK2
OSC1
FUNC_32K_CLK
OSC0
OCP_CLK_PI
Int
133
L4_ICLK
CORE_X2_CLK
DPLL_CORE
RTI_CLK_PI
Counter
13
RTI_CLK
SYS_CLK1
OSC0
SYS_CLK2
OSC1
FUNC_32K_CLK
OSC0
OCP_CLK_PI
Int
133
L4_ICLK
CORE_X2_CLK
DPLL_CORE
RTI_CLK_PI
Counter
13
RTI_CLK
SYS_CLK1
OSC0
SYS_CLK2
OSC1
OSC0
VID_PIX_CLK
DPLL_EVE_VID_DS
P
Func
50
SL2
piclk
Int
IVA_GCLK
IVA_GCLK
IVA_GFCLK
DPLL_IVA
SMARTREFLEX_
CORE
MCLK
Int
133
COREAON_L4_GIC
LK
CORE_X2_CLK
DPLL_CORE
SYSCLK
Func
38.4
WKUPAON_ICLK
SYS_CLK1
OSC0
MCLK
Int
133
COREAON_L4_GIC
LK
CORE_X2_CLK
DPLL_CORE
SYSCLK
Func
38.4
WKUPAON_ICLK
SYS_CLK1
OSC0
SPINLOCK
SPINLOCK_ICLK
Int
133
L4CFG_L3_GICLK
CORE_X2_CLK
DPLL_CORE
TIMER1
TIMER1_ICLK
Int
133
WKUPAON_GICLK
SYS_CLK1
OSC0
TIMER1_FCLK
Func
38.4
TIMER1_GFCLK
SYS_CLK1
OSC0
FUNC_32K_CLK
SYS_32K
SMARTREFLEX_
DSPEVE
88
Specifications
VID_PIX_CLK
FUNC_32K_CLK
CLKDAC
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
TIMER2
TIMER2_ICLK
Int
133
L4PER_L3_GICLK
TIMER2_FCLK
Func
100
TIMER2_GFCLK
TIMER3
TIMER4
TIMER5
TIMER6
TIMER7
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
CORE_X2_CLK
DPLL_CORE
SYS_CLK1
OSC0
FUNC_32K_CLK
SYS_32K
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
TIMER3_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
TIMER3_FCLK
Func
100
TIMER3_GFCLK
SYS_CLK1
OSC0
FUNC_32K_CLK
SYS_32K
TIMER4_ICLK
Int
133
L4PER_L3_GICLK
TIMER4_FCLK
Func
100
TIMER4_GFCLK
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
CORE_X2_CLK
DPLL_CORE
SYS_CLK1
OSC0
FUNC_32K_CLK
SYS_32K
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
DPLL_CORE
TIMER5_ICLK
Int
133
IPU_L3_GICLK
CORE_X2_CLK
TIMER5_FCLK
Func
100
TIMER5_GFCLK
SYS_CLK1
OSC0
FUNC_32K_CLK
SYS_32K
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
CLKOUTMUX0_CL
K
CLKOUTMUX0_CL
K
TIMER6_ICLK
Int
133
IPU_L3_GICLK
CORE_X2_CLK
DPLL_CORE
TIMER6_FCLK
Func
100
TIMER6_GFCLK
SYS_CLK1
OSC0
FUNC_32K_CLK
OSC0
TIMER7_ICLK
Int
133
IPU_L3_GICLK
TIMER7_FCLK
Func
100
TIMER7_GFCLK
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
CLKOUTMUX0_CL
K
CLKOUTMUX0_CL
K
CORE_X2_CLK
DPLL_CORE
SYS_CLK1
OSC0
FUNC_32K_CLK
OSC0
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
CLKOUTMUX0_CL
K
CLKOUTMUX0_CL
K
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
89
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-5. Maximum Supported Frequency (continued)
Module
Clock Sources
Instance Name
Input Clock Name
Clock Type
Max. Clock
Allowed
(MHz)
PRCM Clock Name
TIMER8
TIMER8_ICLK
Int
133
IPU_L3_GICLK
TIMER8_FCLK
Func
100
TIMER8_GFCLK
CORE_X2_CLK
DPLL_CORE
SYS_CLK1
OSC0
FUNC_32K_CLK
OSC0
SYS_CLK2
OSC1
XREF_CLK0
xref_clk0
XREF_CLK1
xref_clk1
CLKOUTMUX0_CL
K
CLKOUTMUX0_CL
K
TPCC
TPCC_GCLK
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
TPTC1
TPTC0_GCLK
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
TPTC2
TPTC1_GCLK
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
UART1
UART1_FCLK
Func
48
UART1_GFCLK
FUNC_192M_CLK
DPLL_PER
UART1_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
UART2
UART2_FCLK
Func
48
UART2_GFCLK
FUNC_192M_CLK
DPLL_PER
UART2_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
UART3_FCLK
Func
48
UART3_GFCLK
FUNC_192M_CLK
DPLL_PER
UART3
5.6
PLL / OSC / Source PLL / OSC / Source
Clock Name
Name
UART3_ICLK
Int
133
L4PER_L3_GICLK
CORE_X2_CLK
DPLL_CORE
VCP1
VCP1_CLK
Int
266
L3MAIN1_L3_GICL
K
CORE_X2_CLK
DPLL_CORE
VIP1
L3_CLK_PROC_CL
K
Int & Func
266
VIP1_GCLK
CORE_X2_CLK
DPLL_CORE
CORE_ISS_MAIN_
CLK
DPLL_CORE
Power Consumption Summary
NOTE
Maximum power consumption for this SoC depends on the specific use conditions for the
end system. Contact your TI representative for assistance in estimating maximum power
consumption for the end system use case.
5.7
Electrical Characteristics
NOTE
The data specified in Table 5-6 through Table 5-10 are subject to change.
NOTE
The interfaces or signals described in Table 5-6 through Table 5-10 correspond to the
interfaces or signals available in multiplexing mode 0 (Function 1).
All interfaces or signals multiplexed on the balls described in these tables have the same DC
electrical characteristics, unless multiplexing involves a PHY/GPIO combination in which
case different DC electrical characteristics are specified for the different multiplexing modes
(Functions).
90
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-6. LVCMOS DDR DC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
MIN
NOM
MAX
UNIT
Signal Names in MUXMODE 0 (Single-Ended Signals) ABF: ddr1_d[31:0], ddr1_a[15:0], ddr1_dqm[3:0], ddr1_ba[2:0], ddr1_csn[1:0],
ddr1_cke[1:0], ddr1_odt[0], ddr1_casn, ddr1_rasn, ddr1_wen, ddr1_rst, ddr1_ecc_d[7:0], ddr1_dqm_ecc;
Driver Mode
VOH
High-level output threshold (IOH = 0.1 mA)
VOL
Low-level output threshold (IOL = 0.1 mA)
CPAD
Pad capacitance (including package capacitance)
ZO
Output impedance (drive
strength)
0.9*VDDS
V
l[2:0] = 000
(Imp80)
80
l[2:0] = 001
(Imp60)
60
l[2:0] = 010
(Imp48)
48
l[2:0] = 011
(Imp40)
40
l[2:0] = 100
(Imp34)
34
0.1*VDDS
V
3
pF
Ω
Single-Ended Receiver Mode
VIH
High-level input threshold
DDR3/DDR3L
VREF+0.1
VDDS+0.2
V
VIL
Low-level input threshold
DDR3/DDR3L
-0.2
VREF-0.1
V
VCM
Input common-mode voltage
VREF
-1%VDDS
VREF+
1%VDDS
V
CPAD
Pad capacitance (including package capacitance)
pF
Signal Names in MUXMODE 0 (Differential Signals): ddr1_dqs[3:0], ddr1_dqsn[3:0], ddr1_ck, ddr1_nck, ddr1_dqs_ecc, ddr1_dqsn_ecc;
Driver Mode
VOH
High-level output threshold (IOH = 0.1 mA)
VOL
Low-level output threshold (IOL = 0.1 mA)
CPAD
Pad capacitance (including package capacitance)
ZO
Output impedance (drive
strength)
0.9*VDDS
V
l[2:0] = 000
(Imp80)
80
l[2:0] = 001
(Imp60)
60
l[2:0] = 010
(Imp48)
48
l[2:0] = 011
(Imp40)
40
l[2:0] = 100
(Imp34)
34
0.1*VDDS
V
3
pF
Ω
Single-Ended Receiver Mode
VIH
High-level input threshold
DDR3/DDR3L
VREF+0.1
VDDS+0.2
V
VIL
Low-level input threshold
DDR3/DDR3L
-0.2
VREF-0.1
V
VCM
Input common-mode voltage
VREF
-1%VDDS
VREF+
1%VDDS
V
CPAD
Pad capacitance (including package capacitance)
3
pF
0.4*vdds
0.6*vdds
V
VREF
-1%VDDS
VREF+
1%VDDS
V
3
pF
Differential Receiver Mode
VSWING
Input voltage swing
DDR3/DDR3L
VCM
Input common-mode voltage
CPAD
Pad capacitance (including package capacitance)
(1) VDDS in this table stands for corresponding power supply (i.e. vdds_ddr1 or vdds_ddr2). For more information on the power supply
name and the corresponding ball, see Table 4-1, POWER [10] column.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
91
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-7. Dual Voltage LVCMOS I2C DC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
MIN
NOM
MAX
UNIT
Signal Names in MUXMODE 0: i2c2_scl; i2c1_scl; i2c1_sda; i2c2_sda;
Balls ABF: L3, L4, L6, L5;
I2C Standard Mode – 1.8 V
VIH
Input high-level threshold
VIL
Input low-level threshold
Vhys
Hysteresis
0.7*VDDS
V
0.3*VDDS
V
0.1*VDDS
V
II
Input current at each I/O pin with an input voltage between 0.1*VDDS to
0.9*VDDS
12
µA
IOZ
IOZ(IPAD Current) at each IO pin. PAD is swept from 0 to VDDS and the
Max(I(PAD)) is measured and is reported as IOZ
12
µA
CI
Input capacitance
10
pF
0.2*VDDS
V
VOL3
Output low-level threshold open-drain at 3-mA sink current
IOLmin
Low-level output current @VOL=0.2*VDDS
tOF
3
Output fall time from VIHmin to VILmax with a bus capacitance CB from 5 pF
to 400 pF
mA
250
ns
I2C Fast Mode – 1.8 V
VIH
Input high-level threshold
VIL
Input low-level threshold
Vhys
Hysteresis
0.7*VDDS
V
0.3*VDDS
V
0.1*VDDS
V
II
Input current at each I/O pin with an input voltage between 0.1*VDDS to
0.9*VDDS
12
µA
IOZ
IOZ(IPAD Current) at each IO pin. PAD is swept from 0 to VDDS and the
Max(I(PAD)) is measured and is reported as IOZ
12
µA
CI
Input capacitance
10
pF
0.2*VDDS
V
VOL3
Output low-level threshold open-drain at 3-mA sink current
IOLmin
Low-level output current @VOL=0.2*VDDS
tOF
Output fall time from VIHmin to VILmax with a bus capacitance CB from 10 pF
to 400 pF
3
20+0.1*Cb
mA
250
ns
I2C Standard Mode – 3.3 V
VIH
Input high-level threshold
VIL
Input low-level threshold
Vhys
Hysteresis
0.7*VDDS
V
0.3*VDDS
0.05*VDD
S
V
V
II
Input current at each I/O pin with an input voltage between 0.1*VDDS to
0.9*VDDS
31
80
µA
IOZ
IOZ(IPAD Current) at each IO pin. PAD is swept from 0 to VDDS and the
Max(I(PAD)) is measured and is reported as IOZ
31
80
µA
CI
Input capacitance
10
pF
VOL3
Output low-level threshold open-drain at 3-mA sink current
0.4
V
IOLmin
Low-level output current @VOL=0.4V
3
IOLmin
Low-level output current @VOL=0.6V for full drive load (400pF/400KHz)
6
tOF
Output fall time from VIHmin to VILmax with a bus capacitance CB from 5 pF
to 400 pF
mA
mA
250
ns
I2C Fast Mode – 3.3 V
VIH
Input high-level threshold
VIL
Input low-level threshold
Vhys
Hysteresis
II
92
V
0.3*VDDS
0.05*VDD
S
Input current at each I/O pin with an input voltage between 0.1*VDDS to
0.9*VDDS
Specifications
0.7*VDDS
31
V
V
80
µA
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-7. Dual Voltage LVCMOS I2C DC Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
IOZ
IOZ(IPAD Current) at each IO pin. PAD is swept from 0 to VDDS and the
Max(I(PAD)) is measured and is reported as IOZ
CI
MIN
NOM
31
MAX
UNIT
80
µA
pF
Input capacitance
10
VOL3
Output low-level threshold open-drain at 3-mA sink current
0.4
IOLmin
Low-level output current @VOL=0.4V
IOLmin
Low-level output current @VOL=0.6V for full drive load (400pF/400KHz)
tOF
Output fall time from VIHmin to VILmax with a bus capacitance CB from 10
pF to 200 pF (Proper External Resistor Value should be used as per I2C
spec)
Output fall time from VIHmin to VILmax with a bus capacitance CB from 300
pF to 400 pF (Proper External Resistor Value should be used as per I2C
spec)
V
3
mA
6
mA
20+0.1*Cb
250
40
290
ns
(1) VDDS in this table stands for corresponding power supply (i.e. vddshv3). For more information on the power supply name and the
corresponding ball, see Table 4-1, POWER [10] column.
Table 5-8. IQ1833 Buffers DC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
MIN
NOM
MAX
UNIT
Signal Names in MUXMODE 0: tclk;
Balls ABF: J2;
1.8-V Mode
VIH
Input high-level threshold
VIL
Input low-level threshold
VHYS
Input hysteresis voltage
IIN
Input current at each I/O pin
CPAD
Pad capacitance (including package capacitance)
0.75 *
VDDS
V
0.25 *
VDDS
V
100
mV
2
11
µA
1
pF
3.3-V Mode
VIH
Input high-level threshold
VIL
Input low-level threshold
VHYS
Input hysteresis voltage
IIN
Input current at each I/O pin
CPAD
Pad capacitance (including package capacitance)
2.0
V
0.6
V
400
mV
5
11
µA
1
pF
(1) VDDS in this table stands for corresponding power supply (i.e. vddshv1). For more information on the power supply name and the
corresponding ball, see Table 4-1, POWER [10] column.
Table 5-9. IHHV1833 Buffers DC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
MIN
NOM
MAX
UNIT
Signal Names in MUXMODE 0: porz;
Balls ABF: G3;
1.8-V Mode
VIH
Input high-level threshold
VIL
Input low-level threshold
VHYS
Input hysteresis voltage
IIN
Input current at each I/O pin
CPAD
Pad capacitance (including package capacitance)
1.2
V
0.4
40
0.02
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
V
mV
1
µA
1
pF
Specifications
93
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-9. IHHV1833 Buffers DC Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
MIN
VIH
Input high-level threshold
1.2
VIL
Input low-level threshold
VHYS
Input hysteresis voltage
40
IIN
Input current at each I/O pin
5
CPAD
Pad capacitance (including package capacitance)
NOM
MAX
UNIT
3.3-V Mode
V
0.4
V
mV
8
µA
1
pF
Table 5-10. LVCMOS Analog OSC Buffers DC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
DESCRIPTION
MIN
NOM
MAX
UNIT
Signal Names in MUXMODE 0: xi_osc0, xo_osc0, xi_osc1, xo_osc1;
Balls ABF: E22, D22, B21, C21;
VIH
Input high-level threshold
VIL
Input low-level threshold
IOH
IOL
0.65*VDDS
V
0.35*VDDS
V
hfenable=0
1.18
mA
hfenable=1
2
mA
hfenable=0
2
mA
hfenable=1
3.2
mA
MODE-1
150
VHYS
Input hysteresis voltage
CPAD
Capacitance connected on input and output Pad on
Board, CL1=CL2
mV
12
24
pF
(1) VDDS in this table stands for corresponding power supply (i.e. vdda_osc). For more information on the power supply name and the
corresponding ball, see Table 4-1, POWER [10] column.
Table 5-11. Dual Voltage LVCMOS DC Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
DESCRIPTION
MIN
NOM
MAX
UNIT
1.8-V Mode
VIH
Input high-level threshold
VIL
Input low-level threshold
VHYS
Input hysteresis voltage
VOH
Output high-level threshold (IOH = 2 mA)
VOL
Output low-level threshold (IOL = 2 mA)
IDRIVE
Pin Drive strength at PAD Voltage = 0.45V or VDDS0.45V
IIN
Input current at each I/O pin
IOZ
IOZ(IPAD Current) at each IO pin. PAD is swept from 0
to VDDS and the Max(I(PAD)) is measured and is
reported as IOZ
IIN with pulldown enabled
IIN with pullup enabled
CPAD
0.65*VDDS
V
0.35*VDDS
V
100
mV
VDDS-0.45
V
0.45
6
V
mA
16
µA
11.5
µA
Input current at each I/O pin with weak pulldown
enabled measured when PAD = VDDS
60
120
200
µA
Input current at each I/O pin with weak pullup enabled
measured when PAD = 0
60
120
210
µA
4
pF
Pad capacitance (including package capacitance)
ZO
Output impedance (drive strength)
VIH
Input high-level threshold
VIL
Input low-level threshold
40
Ω
3.3-V Mode
94
Specifications
2
V
0.8
V
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-11. Dual Voltage LVCMOS DC Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
DESCRIPTION
MIN
VHYS
Input hysteresis voltage
200
mV
VOH
Output high-level threshold (IOH =100µA)
VDDS-0.2
V
VOL
Output low-level threshold (IOL = 100µA)
IDRIVE
NOM
MAX
UNIT
0.2
Pin Drive strength at PAD Voltage = 0.45V or VDDS0.45V
6
V
mA
IIN
Input current at each I/O pin
64
µA
IOZ
IOZ(IPAD Current) at each IO pin. PAD is swept from 0
to VDDS and the Max(I(PAD)) is measured and is
reported as IOZ
64
µA
IIN with pulldown enabled
IIN with pullup enabled
CPAD
Input current at each I/O pin with weak pulldown
enabled measured when PAD = VDDS
10
100
290
µA
Input current at each I/O pin with weak pullup enabled
measured when PAD = 0
40
100
200
µA
4
pF
Pad capacitance (including package capacitance)
ZO
Output impedance (drive strength)
40
Ω
(1) VDDS in this table stands for corresponding power supply. For more information on the power supply name and the corresponding ball,
see Table 4-1, POWER [10] column.
Table 5-12. Analog-to-Digital ADC Subsystem Electrical Specifications
over operating free-air temperature range (unless otherwise noted)
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
Analog Input
Full-scale Input Range
Vref
adc_vrefp
Should be less than or equal to vdds_18v.
Differential Non-Linearity
(DNL)
1.62
vdds_18v
V
-1
1
LSB
±2
LSB
Integral Non-Linearity (INL)
adc_vrefp = vdds_18v
Gain Error
adc_vrefp = vdds_18v
±4
Offset Error
adc_vrefp = vdds_18v
±3
Input Sampling Capacitance
3.2
Input Frequency adc_in[7:0]
V
0
LSB
LSB
5
pF
30
kHz
Signal-to-Noise Ratio (SNR)
Input Signal: 30 kHz sine wave at -0.5 dB
Full Scale
50
dB
Total Harmonic Distortion
(THD)
1.8 Vpp, 30 kHz sine wave
60
dB
Spurious Free Dynamic
Range
1.8 Vpp, 30 kHz sine wave
60
dB
Signal-to-Noise Plus
Distortion
1.8 Vpp, 30 kHz sine wave
50
dB
20
Ω
adc_vrefp Input Impedance
Sampling Dynamics
Time from Start to Start
Conversion Time + Error Correction
Acquisition time
Throughput Rate
17
Clock Cycles
10 + 1
Clock Cycles
4
Clock Cycles
CLK = 20 MHz (Pin : clk)
Channel to Channel Isolation
1
MSPS
90
dB
See
Table 5-1
ADC Clock Frequency
MHz
(1) Connect adc_vrefp to vdda_adc when not using a positive external reference voltage.
(2) This parameter is valid when the respective AIN terminal is configured to operate as a general-purpose ADC input.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
95
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-12. Analog-to-Digital ADC Subsystem Electrical Specifications (continued)
over operating free-air temperature range (unless otherwise noted)
(3) The maximum sample rate assumes a conversion time of 13 ADC clock cycles with the acquisition time configured for the minimum of 2
ADC clock cycles, where it takes a total of 15 ADC clock cycles to sample the analog input and convert it to a positive binary weighted
digital value.
5.8
Thermal Characteristics
For reliability and operability concerns, the maximum junction temperature of the Device has to be at or
below the TJ value identified in Section 5.4, Recommended Operating Conditions.
A BCI compact thermal model for this Device is available and recommended for use when modeling
thermal performance in a system.
Therefore, it is recommended to perform thermal simulations at the system level with the worst case
device power consumption.
5.8.1
Package Thermal Characteristics
Table 5-13 provides the thermal resistance characteristics for the package used on this device.
NOTE
Power dissipation of 4.14 W and an ambient temperature of 65ºC is assumed for ABF
package.
Table 5-13. Thermal Resistance Characteristics
PARAMET
ER
DESCRIPTION
°C/W(1)
AIR FLOW (m/s)(2)
T1
RΘJC
Junction-to-case
1.41
N/A
T2
RΘJB
Junction-to-board
5.96
N/A
Junction-to-free air
15.4
0
13.1
1
12.2
2
11.6
3
0.94
0
0.94
1
0.94
2
0.94
3
5.12
0
4.78
1
4.63
2
4.52
3
NO.
T3
T4
T5
RΘJA
Junction-to-moving air
T6
T7
T8
T9
Junction-to-free air
ΨJT
Junction-to-package top
T10
T11
T12
T13
Junction-to-free air
ΨJB
Junction-to-board
T14
(1) These values are based on a JEDEC defined 2S2P system (with the exception of the Theta JC [RΘJC] value, which is based on a
JEDEC defined 1S0P system) and will change based on environment as well as application. For more information, see these
EIA/JEDEC standards:
– JESD51-2, Integrated Circuits Thermal Test Method Environment Conditions - Natural Convection (Still Air)
– JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
– JESD51-6, Integrated Circuit Thermal Test Method Environmental Conditions - Forced Convection (Moving Air)
– JESD51-7, High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
– JESD51-9, Test Boards for Area Array Surface Mount Packages
(2) m/s = meters per second
96
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
5.9
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Timing Requirements and Switching Characteristics
5.9.1
Timing Parameters and Information
The timing parameter symbols used in the timing requirement and switching characteristic tables are
created in accordance with JEDEC Standard 100. To shorten the symbols, some of pin names and other
related terminologies have been abbreviated as follows:
Table 5-14. Timing Parameters
SUBSCRIPTS
5.9.2
SYMBOL
PARAMETER
c
Cycle time (period)
d
Delay time
dis
Disable time
en
Enable time
h
Hold time
su
Setup time
START
Start bit
t
Transition time
v
Valid time
w
Pulse duration (width)
X
Unknown, changing, or don't care level
F
Fall time
H
High
L
Low
R
Rise time
V
Valid
IV
Invalid
AE
Active Edge
FE
First Edge
LE
Last Edge
Z
High impedance
Interface Clock Specifications
5.9.2.1
Interface Clock Terminology
The interface clock is used at the system level to sequence the data and/or to control transfers accordingly
with the interface protocol.
5.9.2.2
Interface Clock Frequency
The two interface clock characteristics are:
• The maximum clock frequency
• The maximum operating frequency
The interface clock frequency documented in this document is the maximum clock frequency, which
corresponds to the maximum frequency programmable on this output clock. This frequency defines the
maximum limit supported by the Device IC and does not take into account any system consideration
(PCB, peripherals).
The system designer will have to consider these system considerations and the Device IC timing
characteristics as well to define properly the maximum operating frequency that corresponds to the
maximum frequency supported to transfer the data on this interface.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
97
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
5.9.3
www.ti.com
Power Supply Sequences
This section describes the power-up and power-down sequence required to ensure proper device
operation.
Figure 5-1 and Figure 5-2, describes the Device Power Sequencing.
I/O Buffer Voltages
vdds18v, vdds18v_ddr1, vdds18v_ddr2,
vdds18v_ddr3
Note 3
PLL and Analog PHY Voltages
Note 4
EMIF Voltages
vdda_adc, vdda_csi, vdda_dac, vdda_ddr_dsp,
vdda_gmac_core, vdda_osc, vdda_per
vdds_ddr1, vdds_ddr2, vdds_ddr3
Note 5
CORE AVS Voltage
vdd
Note 6
DSPEVE AVS Voltage
vdd_dspeve
Note 7
vddshv1, vddshv2, vddshv3,
vddshv4, vddshv5(3), vddshv6
xi_osc0
Note 8
resetn, porz
Note 10
Note 9
Valid Config
sysboot[15:0]
Note 11
rstoutn
SPRS916_ELCH_01
Figure 5-1. Power-Up Sequencing
(1) Grey shaded areas are windows where it is valid to ramp-up a voltage rail.
(2) Blue dashed lines are not valid windows but show alternate ramp-up possibilities based on whether I/O voltage levels are 1.8V or 3.3V
(see associated note for more details).
(3) vdds18v_* and vdda_* rails should not be combined for best performance to avoid transient switching noise impacts on analog domains.
vdda_* should not ramp-up before vdds18v_* but could ramp concurrently if design ensures final operational voltage will not be reached
until after vdds18v. The preferred sequence is to follow all vdds18v_* to ensure circuit components and PCB design do not cause an
inadvertent violation.
(4) vdds_ddr* should not ramp-up before vdds18v_*. The preferred sequence is to follow all vdds18v_* to ensure circuit components and
PCB design do not cause an inadvertent violation. vdds_ddr* can ramp-up before, concurrently or after vdda_*, there are no
dependencies between vdds_ddr* and vdda_* domains.
– vdds_ddr* supplies can be combined with vdds18v_* and vdds18v_ddr supplies for DDR2 mode of operation (1.8V) and ramped up
together for simplified power sequencing.
– If vdds18v_ddr and vdds_ddr* are kept separate from vdds18v_* on board, then this combined DDR supply can come up together
or after the vdds18v_* supply. The DDR supply in this case should never ramp up before the vdds18v_*.
(5) vdd should not ramp-up before vdds18v_* or vdds_ddr* domains.
(6) vdd_dspeve must not exceed vdd core supply and maintain at least 150mV lower voltage on vdd_dspeve vs vdd. vdd_dspeve could
ramp concurrently with vdd if design ensures final operational voltage will not be reached until after vdd and maintains minimum of
150mV less than vdd during entire ramp time. The preferred sequence is to follow vdd to ensure circuit components and PCB design do
not cause an inadvertent violation.
(7) If any of the vddshv[1-6] power rails are used for 1.8V I/O signaling, then these rails can be combined with vdds18v_*.
If 3.3V I/O signaling is required, then these rails must be the last to ramp following vdd_dspeve.
98
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(8) resetn and porz must remain asserted low for a minimum of 12P(12) after xi_osc0 is stable at a valid frequency.
(9) Setup time: SYSBOOT[15:0] pins must be valid 2P(12) before porz is de-asserted high.
(10) Hold time: SYSBOOT[15:0] pins must be valid 15P(12) after porz is de-asserted high.
(11) resetn to rstoutn delay is 2ms.
(12) * P = 1/(SYS_CLK1/610) frequency in ns.
(13) Ramped Up is defined as reaching the minimum operational voltage level for the corresponding power domain. For information about
voltage levels, refer to , Recommended Operating Conditions.
porz
Note 3
vddshv1, vddshv2, vddshv3,
vddshv4, vddshv5, vddshv6
Note 4
DSPEVE voltage
vdd_dspeve
CORE voltage
vdd
Note 5
EMIF voltage
vdds_ddr1, vdds_ddr2, vdds_ddr3
Note 6
vdda_osc, vdda_per, vdda_ddr_dsp,
vdda_gmac_core, vdda_csi,
vdda_dac, vdda_adc
vdds18v_ddr1, vdds18v_ddr2,
vdds18v_ddr3, vdds18v,
Note 7
xi_osc0
SPRS916_ELCH_02
Figure 5-2. Power-Down Sequencing
(1) Grey shaded areas show valid times to ramp down each supply.
(2) Dashed lines are not valid ramp times but show alternate ramp possibilities based on the associated note.
(3) If any of the vddshv* are used as 1.8V only, then these rails can ramp down at the same time as vdds18v_* or be combined with
vdds18v_*. If vddshv* are used as 3.3V, they can start ramping down no sooner than 100µs after PORz low assertion and must ramped
down before vdd_dspeve. If all vddshv_* are 1.8V, then neither vdd_dspeve or vdd should start ramping down no sooner than 100µs
after PORz low assertion.
(4) vdd_dspeve can ramp down before or at the same time as vdd/vpp.
(5) vdds_ddr* can start ramping down no sooner than 500µs after vdd and must be ramped down before vdds18v. vdds_ddr* can start
ramping down before, concurrently or after vdda_*, there are no dependencies between vdds_ddr* and vdda_* domains.
– vdds_ddr* supplies can be combined with vdds18v_* and vdds18v_ddr supplies for DDR2 mode of operation (1.8V) and ramped
down together for simplified power sequencing.
– If vdds18v_ddr and vdds_ddr* are kept separate from vdds18v_* on board, then this combined DDR supply can come down
together or before the vdds18v_* supply. The DDR supply in this case should never ramp down after the vdds18v_*.
(6) vdda_* can ramp down before or at the same time as vdds18v_*.
(7) xi_osc0 can be turned off anytime after porz assertion and must be turned off before vdda_osc voltage rail is shutdown.
(8) Ramped Down is defined as reaching a voltage level of no more than 0.6V.
Figure 5-3 describes vddshv[1-6] supplies falling after vdds18v supplies delta.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
99
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
vddshv1, vddshv2, vddshv3,
vddshv4, vddshv5, vddshv6
vdds18v
Vdelta
(Note1)
SPRS916_ELCH_03
Figure 5-3. vddshv* Supplies Falling After vdds18v Supplies Delta
(1) Vdelta MAX = 2V
5.9.4
Clock Specifications
NOTE
For more information, see Power, Reset, and Clock Management / PRCM Subsystem
Environment / External Clock Signals and Clock Management Functional Description section
of the Device TRM.
NOTE
Audio Back End (ABE) module is not supported for this family of devices, but “ABE” name is
still present in some clock or DPLL names.
The device operation requires the following clocks:
• The system clocks, SYS_CLK1(Mandatory) and SYS_CLK2(Optional) are the main clock sources of
the device. They supply the reference clock to the DPLLs as well as functional clock to several
modules.
Figure 5-4 shows the external input clock sources and the output clocks to peripherals.
100
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DEVICE
rstoutn
Warm reset output.
resetn
Device reset input.
porz
xi_osc0
Power ON Reset.
From quartz (19.2, 20 or 27 MHz)
or from CMOS square clock source (19.2, 20 or 27MHz).
xo_osc0
To quartz (from oscillator output).
xi_osc1
From quartz (range from 19.2 to 32 MHz)
or from CMOS square clock source(range from 12 to 38.4 MHz).
xo_osc1
To quartz (from oscillator output).
clkout0
clkout1
Output clkout[0:2] clocks come from:
• Either the input system clock and alternate clock (xi_osc0 or xi_osc1)
• Or a CORE clock (from CORE output)
• Or a 192-MHz clock (from PER DPLL output).
clkout2
xref_clk0
xref_clk1
External Reference Clock [0:2].
For Audio and other Peripherals
xref_clk2
sysboot[15:0]
Boot Mode Configuration
SPRS91v_CLK_01_SR2.0
Figure 5-4. Clock Interface
5.9.4.1
•
•
Input Clocks / Oscillators
The source of the internal system clock (SYS_CLK1) could be either:
– A CMOS clock that enters on the xi_osc0 ball (with xo_osc0 left unconnected on the CMOS clock
case).
– A crystal oscillator clock managed by xi_osc0 and xo_osc0.
The source of the internal system clock (SYS_CLK2) could be either:
– A CMOS clock that enters on the xi_osc1 ball (with xo_osc1 left unconnected on the CMOS clock
case).
– A crystal oscillator clock managed by xi_osc1 and xo_osc1.
SYS_CLK1 is received directly from oscillator OSC0. For more information about SYS_CLK1 see Device
TRM, Chapter: Power, Reset, and Clock Management.
5.9.4.1.1 OSC0 External Crystal
An external crystal is connected to the device pins. Figure 5-5 describes the crystal implementation.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
101
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Device
xo_osc0
xi_osc0
vssa_osc0
Rd
(Optional)
Crystal
Cf2
Cf1
SPRS91v_CLK_02
Figure 5-5. Crystal Implementation
NOTE
The load capacitors, Cf1 and Cf2 in Figure 5-5, should be chosen such that the below
equation is satisfied. CL in the equation is the load specified by the crystal manufacturer. All
discrete components used to implement the oscillator circuit should be placed as close as
possible to the associated oscillator xi_osc0, xo_osc0, and vssa_osc0 pins.
CL=
Cf1Cf2
(Cf1+Cf2)
Figure 5-6. Load Capacitance Equation
The crystal must be in the fundamental mode of operation and parallel resonant. Table 5-15 summarizes
the required electrical constraints.
Table 5-15. OSC0 Crystal Electrical Characteristics
NAME
fp
DESCRIPTION
TYP
MAX
19.2, 20, 27
UNIT
MHz
Cf1
Cf1 load capacitance for crystal parallel resonance with Cf1 = Cf2
12
24
pF
Cf2
Cf2 load capacitance for crystal parallel resonance with Cf1 = Cf2
12
24
pF
100
Ω
19.2 MHz, 20 MHz, 27
MHz
7
pF
19.2 MHz, 20 MHz
7
pF
27 MHz
5
pF
7
pF
5
pF
3
pF
ESR(Cf1,Cf2)
Crystal ESR
ESR = 30 Ω
ESR = 40 Ω
ESR = 50 Ω
CO
Crystal shunt capacitance
ESR = 60 Ω
ESR = 80 Ω
ESR = 100 Ω
LM
Crystal motional inductance for fp = 20 MHz
CM
Crystal motional capacitance
tj(xiosc0)
102
MIN
Parallel resonance crystal frequency
Frequency accuracy(1), xi_osc0
Specifications
19.2 MHz, 20 MHz
27 MHz
Not Supported
19.2 MHz, 20 MHz
27 MHz
Not Supported
19.2 MHz, 20 MHz
27 MHz
-
Not Supported
-
10.16
mH
3.42
fF
Ethernet not used
±200
ppm
Ethernet RGMII using
derived clock
±50
ppm
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) Crystal characteristics should account for tolerance+stability+aging.
When selecting a crystal, the system design must consider the temperature and aging characteristics of a
based on the worst case environment and expected life expectancy of the system.
Table 5-16 details the switching characteristics of the oscillator and the requirements of the input clock.
Table 5-16. Oscillator Switching Characteristics—Crystal Mode
NAME
DESCRIPTION
fp
Oscillation frequency
tsX
Start-up time
MIN
TYP
MAX
UNIT
19.2, 20, 27 MHz
MHz
4
ms
5.9.4.1.2 OSC0 Input Clock
A 1.8-V LVCMOS-Compatible Clock Input can be used instead of the internal oscillator to provide the
SYS_CLK1 clock input to the system. The external connections to support this are shown in Figure 5-7.
The xi_osc0 pin is connected to the 1.8-V LVCMOS-Compatible clock source. The xi_osc0 pin is left
unconnected. The vssa_osc0 pin is connected to board ground (vss).
Device
xi_osc0
xo_osc0
vssa_osc0
NC
SPRS91v_CLK_03
Figure 5-7. 1.8-V LVCMOS-Compatible Clock Input
Table 5-17 summarizes the OSC0 input clock electrical characteristics.
Table 5-17. OSC0 Input Clock Electrical Characteristics—Bypass Mode
NAME
f
DESCRIPTION
MIN
TYP
Frequency
MAX
UNIT
19.2, 20, 27
CIN
Input capacitance
IIN
Input current (3.3V mode)
MHz
2.184
2.384
2.584
pF
4
6
10
µA
Table 5-18 details the OSC0 input clock timing requirements.
Table 5-18. OSC0 Input Clock Timing Requirements
NAME
DESCRIPTION
CK0
1 / tc(xiosc0)
CK1
tw(xiosc0)
Pulse duration, xi_osc0 low or high
tj(xiosc0)
Period jitter(1), xi_osc0
tR(xiosc0)
tF(xiosc0)
MIN
Frequency, xi_osc0
TYP
MAX
19.2, 20, 27
0.45 × tc(xiosc0)
UNIT
MHz
0.55 × tc(xiosc0)
ns
0.01 × tc(xiosc0)
ns
Rise time, xi_osc0
5
ns
Fall time, xi_osc0
5
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
103
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-18. OSC0 Input Clock Timing Requirements (continued)
NAME
DESCRIPTION
tj(xiosc0)
Frequency accuracy(2), xi_osc0
MAX
UNIT
Ethernet not used
MIN
TYP
±200
ppm
Ethernet RGMII using
derived clock
±50
ppm
(1) Period jitter is meant here as follows:
– The maximum value is the difference between the longest measured clock period and the expected clock period
– The minimum value is the difference between the shortest measured clock period and the expected clock period
(2) Crystal characteristics should account for tolerance+stability+aging.
CK0
CK1
CK1
xi_osc0
SPRS91v_CLK_04
Figure 5-8. xi_osc0 Input Clock
5.9.4.1.3 Auxiliary Oscillator OSC1 Input Clock
SYS_CLK2 is received directly from oscillator OSC1. For more information about SYS_CLK2 see Device
TRM, Chapter: Power, Reset, and Clock Management.
5.9.4.1.3.1 OSC1 External Crystal
An external crystal is connected to the device pins. Figure 5-9 describes the crystal implementation.
Device
xo_osc1
xi_osc1
vssa_osc1
Rd
(Optional)
Crystal
Cf2
Cf1
SPRS91v_CLK_05
Figure 5-9. Crystal Implementation
NOTE
The load capacitors, Cf1 and Cf2 in Figure 5-9, should be chosen such that the below
equation is satisfied. CL in the equation is the load specified by the crystal manufacturer. All
discrete components used to implement the oscillator circuit should be placed as close as
possible to the associated oscillator xi_osc1, xo_osc1, and vssa_osc1 pins.
CL=
Cf1Cf2
(Cf1+Cf2)
Figure 5-10. Load Capacitance Equation
104
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
The crystal must be in the fundamental mode of operation and parallel resonant. Table 5-19 summarizes
the required electrical constraints.
Table 5-19. OSC1 Crystal Electrical Characteristics
NAME
fp
DESCRIPTION
MIN
Parallel resonance crystal frequency
TYP
MAX
UNIT
Range from 19.2 to 32
MHz
Cf1
Cf1 load capacitance for crystal parallel resonance with Cf1 = Cf2
12
24
pF
Cf2
Cf2 load capacitance for crystal parallel resonance with Cf1 = Cf2
12
24
pF
ESR(Cf1,Cf2)
Crystal ESR
100
Ω
ESR = 30 Ω
19.2 MHz ≤ fp ≤ 32 MHz
7
pF
ESR = 40 Ω
19.2 MHz ≤ fp ≤ 32 MHz
5
pF
19.2 MHz ≤ fp ≤ 25 MHz
7
pF
25 MHz < fp ≤ 27 MHz
5
pF
ESR = 50 Ω
27 MHz < fp ≤ 32 MHz
CO
Crystal shunt capacitance
ESR = 60 Ω
Not Supported
19.2 MHz ≤ fp ≤ 23 MHz
7
pF
23 MHz < fp ≤ 25 MHz
5
pF
5
pF
3
pF
3
pF
25 MHz < fp ≤ 32 MHz
Not Supported
19.2 MHz ≤ fp ≤ 23 MHz
ESR = 80 Ω
23 MHz < fp ≤ 25 MHz
25 MHz < fp ≤ 32 MHz
ESR = 100 Ω
-
-
Not Supported
19.2 MHz ≤ fp ≤ 20 MHz
20 MHz < fp ≤ 32 MHz
-
Not Supported
-
LM
Crystal motional inductance for fp = 20 MHz
10.16
mH
CM
Crystal motional capacitance
3.42
fF
tj(xiosc0)
Frequency accuracy(1), xi_osc1
Ethernet not used
±200
ppm
Ethernet RGMII using
derived clock
±50
ppm
(1) Crystal characteristics should account for tolerance+stability+aging.
When selecting a crystal, the system design must take into account the temperature and aging
characteristics of a crystal versus the user environment and expected lifetime of the system.
Table 5-20 details the switching characteristics of the oscillator and the requirements of the input clock.
Table 5-20. Oscillator Switching Characteristics—Crystal Mode
NAME
DESCRIPTION
fp
Oscillation frequency
tsX
Start-up time
MIN
TYP
MAX
Range from 19.2 to 32
UNIT
MHz
4
ms
5.9.4.1.3.2 OSC1 Input Clock
A 1.8-V LVCMOS-Compatible Clock Input can be used instead of the internal oscillator to provide the
SYS_CLK2 clock input to the system. The external connections to support this are shown in, Figure 5-11.
The xi_osc1 pin is connected to the 1.8-V LVCMOS-Compatible clock sources. The xo_osc1 pin is left
unconnected. The vssa_osc1 pin is connected to board ground (VSS).
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
105
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Device
xi_osc1
xo_osc1
vssa_osc1
NC
SPRS91v_CLK_06
Figure 5-11. 1.8-V LVCMOS-Compatible Clock Input
Table 5-21 summarizes the OSC1 input clock electrical characteristics.
Table 5-21. OSC1 Input Clock Electrical Characteristics—Bypass Mode
NAME
f
DESCRIPTION
MIN
Frequency
TYP
MAX
UNIT
Range from 12 to 38.4
CIN
Input capacitance
IIN
Input current (3.3V mode)
tsX
Start-up time(1)
MHz
2.819
3.019
3.219
pF
4
6
10
µA
See(2)
ms
(1) To switch from bypass mode to crystal or from crystal mode to bypass mode, there is a waiting time about 100 μs; however, if the chip
comes from bypass mode to crystal mode the crystal will start-up after time mentioned in Table 5-20, tsX parameter.
(2) Before the processor boots up and the oscillator is set to bypass mode, there is a waiting time when the internal oscillator is in
application mode and receives a wave. The switching time in this case is about 100 μs.
Table 5-22 details the OSC1 input clock timing requirements.
Table 5-22. OSC1 Input Clock Timing Requirements
NAME
DESCRIPTION
CK0
1 / tc(xiosc1)
CK1
tw(xiosc1)
MIN
Frequency, xi_osc1
TYP
MAX
UNIT
Range from 12 to 38.4
Pulse duration, xi_osc1 low or high
0.45 × tc(xiosc1)
(1)
MHz
0.55 × tc(xiosc1)
(3)
0.01 × tc(xiosc1)
ns
tj(xiosc1)
Period jitter , xi_osc1
tR(xiosc1)
Rise time, xi_osc1
5
ns
ns
tF(xiosc1)
Fall time, xi_osc1
5
ns
Ethernet not used
±200
ppm
tj(xiosc1)
Frequency accuracy(2), xi_osc1
Ethernet RGMII using
derived clock
±50
ppm
(1) Period jitter is meant here as follows:
– The maximum value is the difference between the longest measured clock period and the expected clock period
– The minimum value is the difference between the shortest measured clock period and the expected clock period
(2) Crystal characteristics should account for tolerance+stability+aging.
(3) The Period jitter requirement for osc1 can be relaxed to 0.02*tc(xiosc1) under the following constraints:
a. The osc1/SYS_CLK2 clock bypasses all device PLLs
b. The osc1/SYS_CLK2 clock is only used to source the DSS pixel clock outputs
106
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
CK0
CK1
CK1
xi_osc1
SPRS91v_CLK_07
Figure 5-12. xi_osc1 Input Clock
5.9.4.1.4 RC On-die Oscillator Clock
RCOSC_32K_CLK is received directly through a network of resistor and capacitor (an RC network) inside
of the SoC. This RC oscillator do not have good frequency stability. The Frequency range is described in
Table 5-23, which depends on the temperature. For more information about RCOSC_32K_CLK see the
Device TRM, Chapter: Power, Reset, and Clock Management.
Table 5-23. RC On-die Oscillator Clock Frequency Range
NAME
RCOSC_32K_CLK
5.9.4.2
DESCRIPTION
MIN
Internal RC Oscillator
TYP
MAX
UNIT
Range from 28 to 42
kHz
Output Clocks
NOTE
Output Clocks
The content of this section is UNDER DEVELOPMENT!
5.9.4.3
DPLLs, DLLs
NOTE
For more information, see:
• Power, Reset, and Clock Management / Clock Management Functional Description /
Internal Clock Sources / Generators / Generic DPLL Overview Section
and
• Display Subsystem / Display Subsystem Overview section of the Device TRM.
To generate high-frequency clocks, the device supports multiple on-chip DPLLs controlled directly by the
PRCM module.
•
They have their own independent power domain (each one embeds its own switch and can be
controlled as an independent functional power domain)
• They are fed with ALWAYS ON system clock, with independent control per DPLL.
The different DPLLs managed by the PRCM are listed below:
• DPLL_CORE: It supplies all interface clocks and also few module functional clocks.
• DPLL_PER: It supplies several clock sources: a 192-MHz clock for the display functional clock , a
96-MHz functional clock to subsystems and peripherals.
• DPLL_GMAC_DSP: It supplies RGMII, EVE1 and DSP0 module functional clocks.
• DPLL_EVE_VID_DSP: It provides a few module functional clocks (EVE_GFCLK, VID_PIX_CLK
and DSP1_CLK).
• DPLL_DDR: It generates clocks for the one External Memory Interface (EMIF) controller and its
associated EMIF PHYs.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
107
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
NOTE
The following DPLLs are controlled by the clock manager located in the always-on Core
power domain (CM_CORE_AON):
• DPLL_CORE, DPLL_DDR, DPLL_GMAC_DSP, DPLL_PER, DPLL_EVE_VID_DSP.
For more information on CM_CORE_AON and CM_CORE or PRCM DPLLs, see the Power, Reset, and
Clock Management (PRCM) chapter of the Device TRM.
5.9.4.3.1 DPLL Characteristics
The DPLL has three relevant input clocks. One of them is the reference clock (CLKINP) used to generated
the synthesized clock but can also be used as the bypass clock whenever the DPLL enters a bypass
mode. It is therefore mandatory. The second one is a fast bypass clock (CLKINPULOW) used when
selected as the bypass clock and is optional. The third clock (CLKINPHIF) is explained in the next
paragraph.
The DPLL has three output clocks (namely CLKOUT, CLKOUTX2, and CLKOUTHIF). CLKOUT and
CLKOUTX2 run at the bypass frequency whenever the DPLL enters a bypass mode. Both of them are
generated from the lock frequency divided by a post-divider (namely M2 post-divider). The third clock,
CLKOUTHIF, has no automatic bypass capability. It is an output of a post-divider (M3 post-divider) with
the input clock selectable between the internal lock clock (Fdpll) and CLKINPHIF input of the PLL through
an asynchronous multplexing.
For more information, see the Power, Reset, and Clock Management chapter of the Device TRM.
Table 5-24 summarizes DPLL type described in Section 5.9.4.3, DPLLs, DLLs Specifications.
Table 5-24. DPLL Control
DPLL NAME
CONTROLLED BY PRCM
DPLL_CORE
Yes(1)
DPLL_EVE_VID_DSP
Yes(1)
DPLL_GMAC_DSP
Yes(1)
DPLL_PER
Yes(1)
DPLL_DDR
Yes(1)
(1) DPLL is in the always-on domain.
Table 5-25 and summarize the DPLL characteristics and assume testing over recommended operating
conditions.
108
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-25. DPLL Characteristics
NAME
MAX
UNIT
52
MHz
FINP
0.15
52
MHz
REFCLK
10
1400
MHz
FINPHIF
0.001
600
MHz
Bypass mode: fCLKOUT =
fCLKINPULOW / (M1 + 1) if
ulowclken = 1(6)
CLKOUT output frequency
20(1)
1400(2)
MHz
[M / (N + 1)] × FINP × [1 / M2]
(in locked condition)
fCLKOUTx2
CLKOUTx2 output frequency
40(1)
2200(2)
MHz
2 × [M / (N + 1)] × FINP × [1 /
M2] (in locked condition)
20(3)
1400(4)
MHz
FINPHIF / M3 if clkinphifsel = 1
fCLKOUTHIF
CLKOUTHIF output frequency
40
2200
MHz
2 × [M / (N + 1)] × FINP × [1 /
M3] if clkinphifsel = 0
fCLKDCOLDO
DCOCLKLDO output
frequency
2800
MHz
2 × [M / (N + 1)] × FINP (in
locked condition)
tlock
Frequency lock time
6 + 350 ×
REFCLK
µs
plock
Phase lock time
6 + 500 ×
REFCLK
µs
trelock-L
Relock time—Frequency lock(5)
(LP relock time from bypass)
6 + 70 ×
REFCLK
µs
DPLL in LP relock time:
lowcurrstdby = 1
prelock-L
Relock time—Phase lock(5) (LP
relock time from bypass)
6 + 120 ×
REFCLK
µs
DPLL in LP relock time:
lowcurrstdby = 1
trelock-F
Relock time—Frequency lock(5)
(fast relock time from bypass)
3.55 + 70 ×
REFCLK
µs
DPLL in fast relock time:
lowcurrstdby = 0
prelock-F
Relock time—Phase lock(5)
(fast relock time from bypass)
3.55 + 120 ×
REFCLK
µs
DPLL in fast relock time:
lowcurrstdby = 0
finput
DESCRIPTION
MIN
CLKINP input frequency
0.032
finternal
Internal reference frequency
fCLKINPHIF
CLKINPHIF input frequency
fCLKINPULOW
fCLKOUT
CLKINPULOW input frequency
TYP
(3)
(4)
40
COMMENTS
(1) The minimum frequencies on CLKOUT and CLKOUTX2 are assuming M2 = 1.
For M2 > 1, the minimum frequency on these clocks will further scale down by factor of M2.
(2) The maximum frequencies on CLKOUT and CLKOUTX2 are assuming M2 = 1.
(3) The minimum frequency on CLKOUTHIF is assuming M3 = 1. For M3 > 1, the minimum frequency on this clock will further scale down
by factor of M3.
(4) The maximum frequency on CLKOUTHIF is assuming M3 = 1.
(5) Relock time assumes typical operating conditions, 10°C maximum temperature drift.
(6) Bypass mode: fCLKOUT = FINP if ulowclken = 0. For more information, see the Device TRM.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
109
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
5.9.4.3.2 DLL Characteristics
Table 5-26 summarizes the DLL characteristics and assumes testing over recommended operating
conditions.
Table 5-26. DLL Characteristics
NAME
DESCRIPTION
MIN
TYP
MAX
UNIT
finput
Input clock frequency (EMIF_DLL_FCLK)
266
MHz
tlock
Lock time
50k
cycles
Relock time (a change of the DLL frequency implies that DLL must relock)
50k
cycles
trelock
5.9.4.3.2.1 DPLL and DLL Noise Isolation
NOTE
For more information on DPLL and DLL decoupling capacitor requirements, see the External
Capacitors / Voltage Decoupling Capacitors / I/O and Analog Voltage Decoupling / VDDA
Power Domain section.
5.9.5
Recommended Clock and Control Signal Transition Behavior
All clocks and control signals must transition between VIH and VIL (or between VIL and VIH) in a monotonic
manner. Monotonic transitions are more easily guaranteed with faster switching signals. Slower input
transitions are more susceptible to glitches due to noise and special care should be taken for slow input
clocks.
5.9.6
Peripherals
5.9.6.1
Timing Test Conditions
All timing requirements and switching characteristics are valid over the recommended operating conditions
unless otherwise specified.
110
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
5.9.6.2
SPRS975C – AUGUST 2016 – REVISED JULY 2017
VIP
The device includes 1 Video Input Ports (VIP).
Table 5-27, Figure 5-13 and Figure 5-14 present timings and switching characteristics of the VIPs.
Table 5-27. Timing Requirements for VIP (1)(2)
NO.
PARAMETER
DESCRIPTION
MIN
V1
tc(CLK)
Cycle time, vinx_clki(3)(5)
V2
tw(CLKH)
Pulse duration, vinx_clki high
V3
tw(CLKL)
Pulse duration, vinx_clki low(3)(5)
V4
tsu(CTL/DATA-CLK)
Input setup time, Control (vinx_dei, vinx_vsynci, vinx_fldi,
vinx_hsynci) and Data (vinx_dn) valid to vinx_clki transition
V5
th(CLK-CTL/DATA)
5.99
(3)(5)
MAX
UNIT
ns
(1)
0.45*P
(2)
ns
0.45*P
(2)
ns
2.52
ns
-0.05
ns
(3)(4)(5)
Input hold time, Control (vinx_dei, vinx_vsynci, vinx_fldi,
vinx_hsynci) and Data (vinx_dn) valid from vinx_clki transition(3)(4)(5)
(1) For maximum frequency of 165 MHz.
(2) P = vinx_clki period.
(3) x in vinx = 1a, 1b, 2a and 2b.
(4) n in dn = 0 to 7 when x = 1b, 2b;
n = 0 to 23 when x = 1a and 2a;
(5) i in clki, dei, vsynci, hsynci and fldi = 0 or 1.
V3
V2
V1
vinx_clki
SPRS91v_VIP_01
Figure 5-13. Video Input Ports Clock Signal
vinx_clki
(positive-edge clocking)
vinx_clki
(negative-edge clocking)
V5
V4
vinx_d[23:0]/sig
SPRS8xx_VIP_02
Figure 5-14. Video Input Ports Timings
CAUTION
The IO timings provided in this section are only valid for VIN1 and VIN2 if
signals within a single IOSET are used. The IOSETs are defined in Table 5-28
and Table 5-29.
In Table 5-28 and Table 5-29 are presented the specific groupings of signals (IOSET) for use with vin1a,
vin1b, vin2a and vin2b.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
111
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-28. VIN1 IOSETs
SIGNALS
IOSET1
BALL
IOSET2
MUX
BALL
IOSET3
MUX
IOSET4
BALL
MUX
BALL
MUX
vin1a
vin1a_clk0
F22
0
F22
0
F22
0
F22
0
vin1a_de0
F21
0
F21
0
F19
2
F21
0
vin1a_fld0
F20
0
vin1a_hsync0
F19
0
vin1a_vsync0
G19
0
G19
0
G19
0
G19
0
vin1a_d0
G18
0
G18
0
G18
0
G18
0
vin1a_d1
G21
0
G21
0
G21
0
G21
0
vin1a_d2
G22
0
G22
0
G22
0
G22
0
vin1a_d3
H18
0
H18
0
H18
0
H18
0
vin1a_d4
H20
0
H20
0
H20
0
H20
0
vin1a_d5
H19
0
H19
0
H19
0
H19
0
vin1a_d6
H22
0
H22
0
H22
0
H22
0
vin1a_d7
H21
0
H21
0
H21
0
H21
0
vin1a_d8
J17
0
J17
0
vin1b_clk1
F21
2
vin1b_hsync1
W7
7
vin1b_vsync1
W6
7
vin1b_d0
J17
2
vin1b_d1
K22
2
vin1b_d2
K21
2
vin1b_d3
K18
2
vin1b_d4
K17
2
vin1b_d5
K19
2
vin1b_d6
K20
2
vin1b_d7
L21
2
vin1a_d9
K22
0
K22
0
vin1a_d10
K21
0
K21
0
vin1a_d11
K18
0
K18
0
vin1a_d12
K17
0
AB17
2
vin1a_d13
K19
0
U17
2
vin1a_d14
K20
0
W17
2
vin1a_d15
L21
0
AA17
2
vin1b
Table 5-29. VIN2 IOSETs
SIGNALS
IOSET1
IOSET2
BALL
MUX
vin2a_clk0
L22
0
vin2a_de0
M17
0
vin2a_fld0
M18
0
vin2a_vsync0
W6
2
vin2a_d0
AA14
vin2a_d1
AB14
BALL
IOSET3
MUX
BALL
MUX
AB17
9
L22
0
AA17
9
U16
9
W7
2
F14
9
W6
2
C14
9
2
AA14
2
AA14
2
2
AB14
2
AB14
2
vin2a
vin2a_hsync0
112
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-29. VIN2 IOSETs (continued)
SIGNALS
IOSET1
IOSET2
IOSET3
BALL
MUX
BALL
MUX
BALL
MUX
vin2a_d2
U13
2
U13
2
U13
2
vin2a_d3
V13
2
V13
2
V13
2
vin2a_d4
Y13
2
Y13
2
Y13
2
vin2a_d5
W13
2
W13
2
W13
2
vin2a_d6
U11
2
U11
2
U11
2
vin2a_d7
V11
2
V11
2
V11
2
vin2a_d8
U9
2
vin2a_d9
W11
2
vin2a_d10
V9
2
vin2a_d11
W9
2
vin2a_d12
U8
2
vin2a_d13
W8
2
vin2a_d14
U7
2
V7
2
vin2b_clk1
F20
2
vin2b_hsync1
M17
2
vin2b_vsync1
M18
2
vin2b_d0
U9
5
vin2b_d1
W11
5
vin2b_d2
V9
5
vin2b_d3
W9
5
vin2b_d4
U8
5
vin2b_d5
W8
5
vin2b_d6
U7
5
vin2b_d7
V7
5
vin2a_d15
vin2b
5.9.6.3
DSS
Display Parallel Interfaces (DPI) channels are available in DSS named DPI Video Output 1.
Every VOUT interface consists of:
• 24-bit data bus (data[23:0])
• Horizontal synchronization signal (HSYNC)
• Vertical synchronization signal (VSYNC)
• Data enable (DE)
• Field ID (FID)
• Pixel clock (CLK)
NOTE
For more information, see the Display Subsystem section of the Device TRM.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
113
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
CAUTION
All pads/balls configured as vouti_* signals must be programmed to use slow
slew rate by setting the corresponding CTRL_CORE_PAD_*[SLEWCONTROL]
register field to SLOW (0b1).
Table 5-30 and Figure 5-15 assume testing over the recommended operating conditions and electrical
characteristic conditions.
Table 5-30. DPI Video Output 1 Switching Characteristics(1)(2)
NO.
PARAMETER
DESCRIPTION
MODE
MIN
MAX
UNIT
D1
tc(clk)
Cycle time, output pixel clock vouti_clk
6.73
ns
D2
tw(clkL)
Pulse duration, output pixel clock vouti_clk low
P*0.5-1
ns
D3
tw(clkH)
Pulse duration, output pixel clock vouti_clk high
P*0.5-1
D5
td(clk-ctlV)
Delay time, output pixel clock vouti_clk transition to output
data vouti_d[23:0] valid
DPI1
-1.33
1.01
ns
D6
td(clk-dV)
Delay time, output pixel clock vouti_clk transition to output
control signals vouti_vsync, vouti_hsync, vouti_de, and
vouti_fld valid
DPI1
-1.33
1.01
ns
ns
(1) P = output vout1_clk period in ns.
(2) All pads/balls configured as vouti_* signals must be programmed to use slow slew rate by setting the corresponding
CTRL_CORE_PAD_*[SLEWCONTROL] register field to SLOW (0b1).
(3) SERDES transceivers may be sensitive to the jitter profile of vouti_clk. See Application Note SPRAC62 for additional guidance.
D2
D1
D3
D4
Falling-edge Clock Reference
vouti_clk
D6
Rising-edge Clock Reference
vouti_clk
vouti_vsync
D6
vouti_hsync
D5
vouti_d[23:0]
data_1 data_2
data_n
D6
vouti_de
D6
vouti_fld
even
odd
SWPS049-018
(1)(2)(3)
Figure 5-15. DPI Video Output
(1) The configuration of assertion of the data can be programmed on the falling or rising edge of the pixel clock.
(2) The polarity and the pulse width of vout1_hsync and vout1_vsync are programmable, refer to the DSS section of the device TRM.
(3) The vout1_clk frequency can be configured, refer to the DSS section of the device TRM.
114
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
5.9.6.4
SPRS975C – AUGUST 2016 – REVISED JULY 2017
EMIF
The device has a dedicated interface to DDR3 and DDR3L SDRAM. It supports JEDEC standard
compliant DDR3 and DDR3L SDRAM devices with the following features:
• 16-bit or 32-bit data path to external SDRAM memory
• Memory device capacity: 128Mb, 256Mb, 512Mb, 1Gb, 2Gb, 4Gb and 8Gb devices (Single die only)
• One interface with associated DDR3/DDR3L PHYs
NOTE
For more information, see the EMIF Controller section of the Device TRM.
5.9.6.5
GPMC
The GPMC is the unified memory controller that interfaces external memory devices such as:
• Asynchronous SRAM-like memories and ASIC devices
• Asynchronous page mode and synchronous burst NOR flash
• NAND flash
NOTE
For more information, see the General-Purpose Memory Controller section of the Device
TRM.
5.9.6.5.1 GPMC/NOR Flash Interface Synchronous Timing
Table 5-31 and Table 5-32, Table 5-33 and Table 5-34 assume testing over the recommended operating
conditions and electrical characteristic conditions below (see Figure 5-16, Figure 5-17, Figure 5-18,
Figure 5-19, Figure 5-20 and Figure 5-21).
Table 5-31. GPMC/NOR Flash Interface Timing Requirements - Synchronous Mode - 1 Load
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
F12
tsu(dV-clkH)
Setup time, read gpmc_ad[15:0] valid before gpmc_clk high
1.9
ns
F13
th(clkH-dV)
Hold time, read gpmc_ad[15:0] valid after gpmc_clk high
1
ns
F21
tsu(waitV-clkH)
Setup time, gpmc_wait[1:0] valid before gpmc_clk high
1.9
ns
F22
th(clkH-waitV)
Hold Time, gpmc_wait[1:0] valid after gpmc_clk high
1
ns
NOTE
Wait monitoring support is limited to a WaitMonitoringTime value > 0. For a full description of
wait monitoring feature, see the Device TRM.
Table 5-32. GPMC/NOR Flash Interface Switching Characteristics - Synchronous Mode - 1 Load
NO.
PARAMETER
DESCRIPTION
MIN
(12)
F0
tc(clk)
Cycle time, output clock gpmc_clk period
F2
td(clkH-nCSV)
Delay time, gpmc_clk rising edge to gpmc_cs[7:0] transition
F3
td(clkH-nCSIV)
F4
F5
MAX
11.3
(14)
UNIT
ns
F-0.8
F+3.1
ns
Delay time, gpmc_clk rising edge to gpmc_cs[7:0] invalid (14)
E-0.8
E+3.1
ns
td(ADDV-clk)
Delay time, gpmc_a[27:0] address bus valid to gpmc_clk first edge
B-0.8
B+3.1
ns
td(clkH-ADDIV)
Delay time, gpmc_clk rising edge to gpmc_a[27:0] gpmc address bus
invalid
F6
td(nBEV-clk)
Delay time, gpmc_ben[1:0] valid to gpmc_clk rising edge
B-3.8
B+1.1
ns
F7
td(clkH-nBEIV)
Delay time, gpmc_clk rising edge to gpmc_ben[1:0] invalid
D-0.4
D+1.1
ns
-0.8
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
ns
Specifications
115
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-32. GPMC/NOR Flash Interface Switching Characteristics - Synchronous Mode - 1
Load (continued)
NO.
PARAMETER
DESCRIPTION
F8
td(clkH-nADV)
Delay time, gpmc_clk rising edge to gpmc_advn_ale transition
F9
td(clkH-nADVIV)
Delay time, gpmc_clk rising edge to gpmc_advn_ale invalid (14)
(14)
(14)
MIN
MAX
UNIT
G-0.8
G+3.1
ns
D-0.8
D+3.1
ns
H-0.8
H+2.1
ns
E-0.8
E+2.1
ns
F10
td(clkH-nOE)
Delay time, gpmc_clk rising edge to gpmc_oen_ren transition
F11
td(clkH-nOEIV)
Delay time, gpmc_clk rising edge to gpmc_oen_ren invalid (14)
F14
td(clkH-nWE)
Delay time, gpmc_clk rising edge to gpmc_wen transition
(14)
I-0.8
I+3.1
ns
F15
td(clkH-Data)
Delay time, gpmc_clk rising edge to gpmc_ad[15:0] data bus
transition
J-1.1
J+3.92
ns
F17
td(clkH-nBE)
Delay time, gpmc_clk rising edge to gpmc_ben[1:0] transition
J-1.1
J+3.8
ns
F18
tw(nCSV)
Pulse duration, gpmc_cs[7:0] low
A
ns
F19
tw(nBEV)
Pulse duration, gpmc_ben[1:0] low
C
ns
F20
tw(nADVV)
Pulse duration, gpmc_advn_ale low
K
F23
td(CLK-GPIO)
Delay time, gpmc_clk transition to gpio6_16.clkout0 transition
(13)
1.2
ns
6.1
ns
Table 5-33. GPMC/NOR Flash Interface Timing Requirements - Synchronous Mode - 5 Loads
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
F12
tsu(dV-clkH)
Setup time, read gpmc_ad[15:0] valid before gpmc_clk high
2.5
ns
F13
th(clkH-dV)
Hold time, read gpmc_ad[15:0] valid after gpmc_clk high
1.9
ns
F21
tsu(waitV-clkH)
Setup time, gpmc_wait[1:0] valid before gpmc_clk high
2.5
ns
F22
th(clkH-waitV)
Hold Time, gpmc_wait[1:0] valid after gpmc_clk high
1.9
ns
Table 5-34. GPMC/NOR Flash Interface Switching Characteristics - Synchronous Mode - 5 Loads
NO.
PARAMETER
DESCRIPTION
F0
tc(clk)
Cycle time, output clock gpmc_clk period (12)
116
MIN
MAX
15.04
(14)
UNIT
ns
F2
td(clkH-nCSV)
Delay time, gpmc_clk rising edge to gpmc_cs[7:0] transition
F+0.7 (6) F+6.1 (6)
ns
F3
td(clkH-nCSIV)
Delay time, gpmc_clk rising edge to gpmc_cs[7:0] invalid (14)
E+0.7 (5) E+6.1 (5)
ns
F4
td(ADDV-clk)
Delay time, gpmc_a[27:0] address bus valid to gpmc_clk first edge
B+0.7 (2) B+6.1 (2)
ns
F5
td(clkH-ADDIV)
Delay time, gpmc_clk rising edge to gpmc_a[27:0] gpmc address bus
invalid
F6
td(nBEV-clk)
Delay time, gpmc_ben[1:0] valid to gpmc_clk rising edge
B-4.9
B+0.4
ns
F7
td(clkH-nBEIV)
Delay time, gpmc_clk rising edge to gpmc_ben[1:0] invalid
D-0.4
D+4.9
ns
(14)
F8
td(clkH-nADV)
Delay time, gpmc_clk rising edge to gpmc_advn_ale transition
F9
td(clkH-nADVIV)
Delay time, gpmc_clk rising edge to gpmc_advn_ale invalid (14)
F10
td(clkH-nOE)
Delay time, gpmc_clk rising edge to gpmc_oen_ren transition
F11
td(clkH-nOEIV)
Delay time, gpmc_clk rising edge to gpmc_oen_ren invalid (14)
(14)
(14)
0.7
ns
G+0.7 (7) G+6.1 (7)
ns
D+0.7 (4) D+6.1 (4)
ns
H+0.7 (8) H+5.1 (8)
ns
E+0.7 (5) E+5.1 (5)
ns
F14
td(clkH-nWE)
Delay time, gpmc_clk rising edge to gpmc_wen transition
I+0.7 (9)
I+6.1 (9)
ns
F15
td(clkH-Data)
Delay time, gpmc_clk rising edge to gpmc_ad[15:0] data bus
transition
J-0.4 (10)
J+4.9
(10)
ns
F17
td(clkH-nBE)
Delay time, gpmc_clk rising edge to gpmc_ben[1:0] transition
J-0.4 (10)
J+4.9
(10)
ns
F18
tw(nCSV)
Pulse duration, gpmc_cs[7:0] low
A (1)
ns
F19
tw(nBEV)
Pulse duration, gpmc_ben[1:0] low
C (3)
ns
F20
tw(nADVV)
Pulse duration, gpmc_advn_ale low
F23
td(CLK-GPIO)
Delay time, gpmc_clk transition to gpio6_16.clkout0 transition
Specifications
K (11)
(13)
1.2
ns
6.1
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) For single read: A = (CSRdOffTime - CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK period
For burst read: A = (CSRdOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period
For burst write: A = (CSWrOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period
with n the page burst access number.
(2) B = ClkActivationTime * GPMC_FCLK
(3) For single read: C = RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: C = (RdCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For Burst write: C = (WrCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK with n the page burst
access number.
(4) For single read: D = (RdCycleTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: D = (RdCycleTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst write: D = (WrCycleTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(5) For single read: E = (CSRdOffTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: E = (CSRdOffTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst write: E = (CSWrOffTime – AccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(6) For nCS falling edge (CS activated):
Case GpmcFCLKDivider = 0 :
F = 0.5 * CSExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
F = 0.5 * CSExtraDelay * GPMC_FCLK if (ClkActivationTime and CSOnTime are odd) or (ClkActivationTime and CSOnTime are even)
F = (1 + 0.5 * CSExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
F = 0.5 * CSExtraDelay * GPMC_FCLK if ((CSOnTime – ClkActivationTime) is a multiple of 3)
F = (1 + 0.5 * CSExtraDelay) * GPMC_FCLK if ((CSOnTime – ClkActivationTime – 1) is a multiple of 3)
F = (2 + 0.5 * CSExtraDelay) * GPMC_FCLK if ((CSOnTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
F = 0.5 * CSExtraDelay * GPMC_FCLK if ((CSOnTime - ClkActivationTime) is a multiple of 4)
F = (1 + 0.5 * CSExtraDelay) * GPMC_FCLK if ((CSOnTime - ClkActivationTime - 1) is a multiple of 4)
F = (2 + 0.5 * CSExtraDelay) * GPMC_FCLK if ((CSOnTime - ClkActivationTime - 2) is a multiple of 4)
F = (3 + 0.5 * CSExtraDelay) * GPMC_FCLK if ((CSOnTime - ClkActivationTime - 3) is a multiple of 4)
(7) For ADV falling edge (ADV activated):
Case GpmcFCLKDivider = 0 :
G = 0.5 * ADVExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if (ClkActivationTime and ADVOnTime are odd) or (ClkActivationTime and ADVOnTime are
even)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if ((ADVOnTime – ClkActivationTime) is a multiple of 3)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVOnTime – ClkActivationTime – 1) is a multiple of 3)
G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVOnTime – ClkActivationTime – 2) is a multiple of 3)
For ADV rising edge (ADV deactivated) in Reading mode:
Case GpmcFCLKDivider = 0:
G = 0.5 * ADVExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if (ClkActivationTime and ADVRdOffTime are odd) or (ClkActivationTime and ADVRdOffTime
are even)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime) is a multiple of 3)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime – 1) is a multiple of 3)
G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime) is a multiple of 4)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime – 1) is a multiple of 4)
G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime – 2) is a multiple of 4)
G = (3 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVRdOffTime – ClkActivationTime – 3) is a multiple of 4)
For ADV rising edge (ADV deactivated) in Writing mode:
Case GpmcFCLKDivider = 0:
G = 0.5 * ADVExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if (ClkActivationTime and ADVWrOffTime are odd) or (ClkActivationTime and ADVWrOffTime
are even)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime) is a multiple of 3)
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime – 1) is a multiple of 3)
G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
G = 0.5 * ADVExtraDelay * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime) is a multiple of 4)
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
117
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
G = (1 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime – 1) is a multiple of 4)
G = (2 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime – 2) is a multiple of 4)
G = (3 + 0.5 * ADVExtraDelay) * GPMC_FCLK if ((ADVWrOffTime – ClkActivationTime – 3) is a multiple of 4)
(8) For OE falling edge (OE activated):
Case GpmcFCLKDivider = 0:
- H = 0.5 * OEExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
- H = 0.5 * OEExtraDelay * GPMC_FCLK if (ClkActivationTime and OEOnTime are odd) or (ClkActivationTime and OEOnTime are even)
- H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
- H = 0.5 * OEExtraDelay * GPMC_FCLK if ((OEOnTime – ClkActivationTime) is a multiple of 3)
- H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOnTime – ClkActivationTime – 1) is a multiple of 3)
- H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOnTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
- H = 0.5 * OEExtraDelay * GPMC_FCLK if ((OEOnTime - ClkActivationTime) is a multiple of 4)
- H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOnTime - ClkActivationTime - 1) is a multiple of 4)
- H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOnTime - ClkActivationTime - 2) is a multiple of 4)
- H = (3 + 0.5 * OEExtraDelay)) * GPMC_FCLK if ((OEOnTime - ClkActivationTime - 3) is a multiple of 4)
For OE rising edge (OE desactivated):
Case GpmcFCLKDivider = 0:
- H = 0.5 * OEExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
- H = 0.5 * OEExtraDelay * GPMC_FCLK if (ClkActivationTime and OEOffTime are odd) or (ClkActivationTime and OEOffTime are even)
- H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
- H = 0.5 * OEExtraDelay * GPMC_FCLK if ((OEOffTime – ClkActivationTime) is a multiple of 3)
- H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 1) is a multiple of 3)
- H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
- H = 0.5 * OEExtraDelay * GPMC_FCLK if ((OEOffTime – ClkActivationTime) is a multiple of 4)
- H = (1 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 1) is a multiple of 4)
- H = (2 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 2) is a multiple of 4)
- H = (3 + 0.5 * OEExtraDelay) * GPMC_FCLK if ((OEOffTime – ClkActivationTime – 3) is a multiple of 4)
(9) For WE falling edge (WE activated):
Case GpmcFCLKDivider = 0:
- I = 0.5 * WEExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
- I = 0.5 * WEExtraDelay * GPMC_FCLK if (ClkActivationTime and WEOnTime are odd) or (ClkActivationTime and WEOnTime are
even)
- I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
- I = 0.5 * WEExtraDelay * GPMC_FCLK if ((WEOnTime – ClkActivationTime) is a multiple of 3)
- I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime – ClkActivationTime – 1) is a multiple of 3)
- I = (2 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
- I = 0.5 * WEExtraDelay * GPMC_FCLK if ((WEOnTime - ClkActivationTime) is a multiple of 4)
- I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime - ClkActivationTime - 1) is a multiple of 4)
- I = (2 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime - ClkActivationTime - 2) is a multiple of 4)
- I = (3 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOnTime - ClkActivationTime - 3) is a multiple of 4)
For WE rising edge (WE desactivated):
Case GpmcFCLKDivider = 0:
- I = 0.5 * WEExtraDelay * GPMC_FCLK
Case GpmcFCLKDivider = 1:
- I = 0.5 * WEExtraDelay * GPMC_FCLK if (ClkActivationTime and WEOffTime are odd) or (ClkActivationTime and WEOffTime are
even)
- I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK otherwise
Case GpmcFCLKDivider = 2:
- I = 0.5 * WEExtraDelay * GPMC_FCLK if ((WEOffTime – ClkActivationTime) is a multiple of 3)
- I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime – ClkActivationTime – 1) is a multiple of 3)
- I = (2 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime – ClkActivationTime – 2) is a multiple of 3)
Case GpmcFCLKDivider = 3:
- I = 0.5 * WEExtraDelay * GPMC_FCLK if ((WEOffTime - ClkActivationTime) is a multiple of 4)
- I = (1 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime - ClkActivationTime - 1) is a multiple of 4)
- I = (2 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime - ClkActivationTime - 2) is a multiple of 4)
- I = (3 + 0.5 * WEExtraDelay) * GPMC_FCLK if ((WEOffTime - ClkActivationTime - 3) is a multiple of 4)
(10) J = GPMC_FCLK period, where GPMC_FCLK is the General Purpose Memory Controller internal functional clock
(11) For read:
K = (ADVRdOffTime – ADVOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For write: K = (ADVWrOffTime – ADVOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(12) The gpmc_clk output clock maximum and minimum frequency is programmable in the I/F module by setting the GPMC_CONFIG1_CSx
configuration register bit fields GpmcFCLKDivider
118
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(13) gpio6_16 programmed to MUXMODE=9 (clkout1), CM_CLKSEL_CLKOUTMUX1 programmed to 7 (CORE_DPLL_OUT_DCLK),
CM_CLKSEL_CORE_DPLL_OUT_CLK_CLKOUTMUX programmed to 1.
(14) CSEXTRADELAY = 0, ADVEXTRADELAY = 0, WEEXTRADELAY = 0, OEEXTRADELAY = 0. Extra half-GPMC_FCLK cycle delay
mode is not timed.
F1
F0
F1
gpmc_clk
F2
F3
F18
gpmc_csi
F4
Address (MSB)
gpmc_a[10:1]
gpmc_a[27]
F6
F7
F19
gpmc_ben1
F6
F7
F19
gpmc_ben0
F8
F8
F20
F9
gpmc_advn_ale
F10
F11
gpmc_oen_ren
F13
F4
gpmc_ad[15:0]
F5
F12
Address (LSB)
D0
F22
F21
gpmc_waitj
F23
F23
gpio6_16.clkout0
GPMC_01
Figure 5-16. GPMC / Multiplexed 16bits NOR Flash - Synchronous Single Read (GpmcFCLKDivider = 0)(1)(2)
(1) In gpmc_csi, i = 0 to 7.
(2) In gpmc_waitj, j = 0 to 1.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
119
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
F1
F0
F1
gpmc_clk
F2
F3
F18
gpmc_csi
F4
gpmc_a[27:1]
Address
F6
F7
F19
gpmc_ben1
F6
F7
F19
gpmc_ben0
F8
F8
F9
F20
gpmc_advn_ale
F10
F11
gpmc_oen_ren
F13
F12
D0
gpmc_ad[15:0]
F22
F21
gpmc_waitj
F23
F23
gpio6_16.clkout0
GPMC_02
Figure 5-17. GPMC / Non-Multiplexed 16bits NOR Flash - Synchronous Single Read (GpmcFCLKDivider = 0)(1)(2)
(1) In gpmc_csi, i = 0 to 7.
(2) In gpmc_waitj, j = 0 to 1.
120
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
F1
F1
F0
gpmc_clk
F2
F3
F18
gpmc_csi
F4
gpmc_a[10:1]
gpmc_a[27]
Address (MSB)
F7
F6
F19
Valid
gpmc_ben1
F7
F6
F19
Valid
gpmc_ben0
F8
F8
F9
F20
gpmc_advn_ale
F10
F11
gpmc_oen_ren
F12
F4
gpmc_ad[15:0]
F5
F13
D0
Address (LSB)
F22
D1
F12
D2
D3
F21
gpmc_waitj
F23
F23
gpio6_16.clkout0
GPMC_03
Figure 5-18. GPMC / Multiplexed 16bits NOR Flash - Synchronous Burst Read 4x16 bits (GpmcFCLKDivider = 0)(1)(2)
(1) In gpmc_csi, i= 0 to 7.
(2) In gpmc_waitj, j = 0 to 1.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
121
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
F1
F1
F0
gpmc_clk
F2
F3
F18
gpmc_csi
F4
gpmc_a[27:1]
Address
F7
F6
F19
Valid
gpmc_ben1
F7
F6
F19
Valid
gpmc_ben0
F8
F8
F20
F9
gpmc_advn_ale
F10
F11
gpmc_oen_ren
F12
F13
gpmc_ad[15:0]
D0
D1
F12
D2
D3
F21
F22
gpmc_waitj
F23
F23
gpio6_16.clkout0
GPMC_04
Figure 5-19. GPMC / Non-Multiplexed 16bits NOR Flash - Synchronous Burst Read 4x16 bits (GpmcFCLKDivider = 0)(1)(2)
(1) In gpmc_csi, i = 0 to 7.
(2) In gpmc_waitj, j = 0 to 1.
122
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
F1
F1
F0
gpmc_clk
F2
F3
F18
gpmc_csi
F4
gpmc_a[10:1]
gpmc_a[27]
Address (MSB)
F17
F6
F17
F6
F17
F17
gpmc_ben1
F17
F17
gpmc_ben0
F8
F8
F20
F9
gpmc_advn_ale
F14
F14
gpmc_wen
F15
gpmc_ad[15:0]
Address (LSB)
D0
F22
D1
F15
F15
D2
D3
F21
gpmc_waitj
F23
F23
gpio6_16.clkout0
GPMC_05
Figure 5-20. GPMC / Multiplexed 16bits NOR Flash - Synchronous Burst Write 4x16bits (GpmcFCLKDivider = 0)(1)(2)
(1) In “gpmc_csi”, i = 0 to 7.
(2) In “gpmc_waitj”, j = 0 to 1.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
123
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
F1
F1
F0
gpmc_clk
F2
F3
F18
gpmc_csi
F4
Address
gpmc_a[27:1]
F17
F6
F17
F17
gpmc_ben1
F17
F6
F17
F17
gpmc_ben0
F8
F8
F20
F9
gpmc_advn_ale
F14
F14
gpmc_wen
F15
gpmc_ad[15:0]
D0
F15
D1
F15
D2
D3
F21
F22
gpmc_waitj
F23
F23
gpio6_16.clkout0
GPMC_06
Figure 5-21. GPMC / Non-Multiplexed 16bits NOR Flash - Synchronous Burst Write 4x16bits (GpmcFCLKDivider = 0)(1)(2)
(1) In “gpmc_csi”, i = 1 to 7.
(2) In “gpmc_waitj”, j = 0 to 1.
5.9.6.5.2 GPMC/NOR Flash Interface Asynchronous Timing
Table 5-35 and Table 5-36 assume testing over the recommended operating conditions and electrical
characteristic conditions below (see Figure 5-22, Figure 5-23, Figure 5-24, Figure 5-25, Figure 5-26 and
Figure 5-27).
Table 5-35. GPMC/NOR Flash Interface Timing Requirements - Asynchronous Mode
NO.
PARAMETER
DESCRIPTION
FA5
tacc(DAT)
Data Maximum Access Time (GPMC_FCLK cycles)
FA20
tacc1-pgmode(DAT)
FA21
124
MAX
UNIT
H
(1)
cycles
Page Mode Successive Data Maximum Access Time (GPMC_FCLK
cycles)
P
(2)
cycles
tacc2-pgmode(DAT)
Page Mode First Data Maximum Access Time (GPMC_FCLK cycles)
H
(1)
cycles
-
tsu(DV-OEH)
Setup time, read gpmc_ad[15:0] valid before gpmc_oen_ren high
-
th(OEH-DV)
Hold time, read gpmc_ad[15:0] valid after gpmc_oen_ren high
Specifications
MIN
1.9
ns
1
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) H = Access Time * (TimeParaGranularity + 1)
(2) P = PageBurstAccessTime * (TimeParaGranularity + 1)
Table 5-36. GPMC/NOR Flash Interface Switching Characteristics - Asynchronous Mode
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
-
tr(DO)
-
tf(DO)
Rising time, gpmc_ad[15:0] output data
0.447
4.067
ns
Fallling time, gpmc_ad[15:0] output data
0.43
4.463
FA0
tw(nBEV)
ns
Pulse duration, gpmc_ben[1:0] valid time
N
FA1
ns
tw(nCSV)
Pulse duration, gpmc_cs[7:0] low
A
ns
FA3
td(nCSV-nADVIV)
Delay time, gpmc_cs[7:0] valid to gpmc_advn_ale invalid
B - 0.2
B + 2.0
ns
FA4
td(nCSV-nOEIV)
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren invalid (Single read)
C - 0.2
C + 2.0
ns
FA9
td(AV-nCSV)
Delay time, address bus valid to gpmc_cs[7:0] valid
J - 0.2
J + 2.0
ns
FA10
td(nBEV-nCSV)
Delay time, gpmc_ben[1:0] valid to gpmc_cs[7:0] valid
J - 0.2
J + 2.0
ns
FA12
td(nCSV-nADVV)
Delay time, gpmc_cs[7:0] valid to gpmc_advn_ale valid
K - 0.2
K + 2.0
ns
FA13
td(nCSV-nOEV)
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren valid
L - 0.2
L + 2.0
ns
FA16
tw(AIV)
Pulse duration, address invalid between 2 successive R/W accesses
G
FA18
td(nCSV-nOEIV)
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren invalid (Burst read)
I - 0.2
FA20
tw(AV)
Pulse duration, address valid : 2nd, 3rd and 4th accesses
FA25
td(nCSV-nWEV)
Delay time, gpmc_cs[7:0] valid to gpmc_wen valid
FA27
td(nCSV-nWEIV)
Delay time, gpmc_cs[7:0] valid to gpmc_wen invalid
FA28
td(nWEV-DV)
Delay time, gpmc_ wen valid to data bus valid
FA29
td(DV-nCSV)
Delay time, data bus valid to gpmc_cs[7:0] valid
FA37
td(nOEV-AIV)
Delay time, gpmc_oen_ren valid to gpmc_ad[15:0] multiplexed
address bus phase end
ns
I + 2.0
D
ns
ns
E-2
E + 2.0
ns
F - 0.2
F + 2.0
ns
2
ns
J + 2.0
ns
2
ns
J - 0.2
(1) For single read: N = RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
For single write: N = WrCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: N = (RdCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst write: N = (WrCycleTime + (n – 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(2) For single read: A = (CSRdOffTime - CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For single write: A = (CSWrOffTime – CSOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
For burst read: A = (CSRdOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period
For burst write: A = (CSWrOffTime - CSOnTime + (n - 1) * PageBurstAccessTime) * (TimeParaGranularity + 1) * GPMC_FCLK period
with n the page burst access number.
(3) For reading: B = ((ADVRdOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – CSExtraDelay)) * GPMC_FCLK
For writing: B = ((ADVWrOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – CSExtraDelay)) * GPMC_FCLK
(4) C = ((OEOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) * GPMC_FCLKFor single read: C
= RdCycleTime * (TimeParaGranularity + 1) * GPMC_FCLK
(5) J = (CSOnTime * (TimeParaGranularity + 1) + 0.5 * CSExtraDelay) * GPMC_FCLK
(6) K = ((ADVOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – CSExtraDelay)) * GPMC_FCLK
(7) L = ((OEOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) * GPMC_FCLK
(8) G = Cycle2CycleDelay * GPMC_FCLK * (TimeParaGranularity + 1)
(9) I = ((OEOffTime + (n – 1) * PageBurstAccessTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) *
GPMC_FCLK
(10) D = PageBurstAccessTime * (TimeParaGranularity + 1) * GPMC_FCLK
(11) E = ((WEOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay – CSExtraDelay)) * GPMC_FCLK
(12) F = ((WEOffTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay – CSExtraDelay)) * GPMC_FCLK
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
125
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
GPMC_FCLK
gpmc_clk
FA5
FA1
gpmc_csi
FA9
Valid Address
gpmc_a[27:1]
FA0
FA10
gpmc_ben0
Valid
gpmc_ben1
Valid
FA0
FA10
FA3
FA12
gpmc_advn_ale
FA4
FA13
gpmc_oen_ren
gpmc_ad[15:0]
Data IN 0
Data IN 0
gpmc_waitj
FA15
FA14
OUT
DIR
IN
OUT
GPMC_07
Figure 5-22. GPMC / NOR Flash - Asynchronous Read - Single Word Timing(1)(2)(3)
(1) In gpmc_csi, i = 0 to 7. In gpmc_waitj, j = 0 to 1.
(2) FA5 parameter illustrates amount of time required to internally sample input data. It is expressed in number of GPMC functional clock
cycles. From start of read cycle and after FA5 functional clock cycles, input Data will be internally sampled by active functional clock
edge. FA5 value must be stored inside AccessTime register bits field.
(3) GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally.
(4) The "DIR" (direction control) output signal is NOT pinned out on any of the device pads. It is an internal signal only representing a signal
direction on the GPMC data bus.
126
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
GPMC_FCLK
gpmc_clk
FA5
FA5
FA1
FA1
gpmc_csi
FA16
FA9
FA9
gpmc_a[27:1]
Address 0
Address 1
FA0
FA0
FA10
FA10
gpmc_ben0
Valid
FA0
FA0
gpmc_ben1
Valid
Valid
Valid
FA10
FA10
FA3
FA3
FA12
FA12
gpmc_advn_ale
FA4
FA4
FA13
FA13
gpmc_oen_ren
gpmc_ad[15:0]
Data Upper
gpmc_waitj
FA15
FA15
FA14
DIR
OUT
FA14
IN
OUT
IN
GPMC_08
(1)(2)(3)
Figure 5-23. GPMC / NOR Flash - Asynchronous Read - 32-bit Timing
(1) In “gpmc_csi”, i = 0 to 7. In “gpmc_waitj”, j = 0 to 1.
(2) FA5 parameter illustrates amount of time required to internally sample input Data. It is expressed in number of GPMC functional clock
cycles. From start of read cycle and after FA5 functional clock cycles, input Data will be internally sampled by active functional clock
edge. FA5 value should be stored inside AccessTime register bits field
(3) GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally
(4) The "DIR" (direction control) output signal is NOT pinned out on any of the device pads. It is an internal signal only representing a signal
direction on the GPMC data bus.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
127
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
GPMC_FCLK
gpmc_clk
FA21
FA20
FA20
FA20
FA1
gpmc_csi
FA9
Add0
gpmc_a[27:1]
Add1
Add2
Add3
D0
D1
D2
Add4
FA0
FA10
gpmc_ben0
FA0
FA10
gpmc_ben1
FA12
gpmc_advn_ale
FA18
FA13
gpmc_oen_ren
gpmc_ad[15:0]
D3
D3
gpmc_waitj
FA15
FA14
DIR
OUT
IN
OUT
SPRS91v_GPMC_09
Figure 5-24. GPMC / NOR Flash - Asynchronous Read - Page Mode 4x16-bit Timing(1)(2)(3)(4)
(1) In “gpmc_csi”, i = 0 to 7. In “gpmc_waitj”, j = 0 to 1
(2) FA21 parameter illustrates amount of time required to internally sample first input Page Data. It is expressed in number of GPMC
functional clock cycles. From start of read cycle and after FA21 functional clock cycles, First input Page Data will be internally sampled
by active functional clock edge. FA21 calculation is detailled in a separated application note (ref …) and should be stored inside
AccessTime register bits field.
(3) FA20 parameter illustrates amount of time required to internally sample successive input Page Data. It is expressed in number of GPMC
functional clock cycles. After each access to input Page Data, next input Page Data will be internally sampled by active functional clock
edge after FA20 functional clock cycles. FA20 is also the duration of address phases for successive input Page Data (excluding first
input Page Data). FA20 value should be stored in PageBurstAccessTime register bits field.
(4) GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally
(5) The "DIR" (direction control) output signal is NOT pinned out on any of the device pads. It is an internal signal only representing a signal
direction on the GPMC data bus.
128
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
gpmc_fclk
gpmc_clk
FA1
gpmc_csi
FA9
Valid Address
gpmc_a[27:1]
FA0
FA10
gpmc_ben0
FA0
FA10
gpmc_ben1
FA3
FA12
gpmc_advn_ale
FA27
FA25
gpmc_wen
FA29
Data OUT
gpmc_ad[15:0]
gpmc_waitj
DIR
OUT
GPMC_10
Figure 5-25. GPMC / NOR Flash - Asynchronous Write - Single Word Timing(1)
(1) In “gpmc_csi”, i = 0 to 7. In “gpmc_waitj”, j = 0 to 1.
(2) The "DIR" (direction control) output signal is NOT pinned out on any of the device pads. It is an internal signal only representing a signal
direction on the GPMC data bus.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
129
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
GPMC_FCLK
gpmc_clk
FA1
FA5
gpmc_csi
FA9
gpmc_a27
gpmc_a[10:1]
Address (MSB)
FA0
FA10
gpmc_ben0
Valid
FA0
FA10
Valid
gpmc_ben1
FA3
FA12
gpmc_advn_ale
FA4
FA13
gpmc_oen_ren
FA29
gpmc_ad[15:0]
FA37
Address (LSB)
Data IN
Data IN
FA15
FA14
DIR
OUT
IN
OUT
gpmc_waitj
GPMC_11
Figure 5-26. GPMC / Multiplexed NOR Flash - Asynchronous Read - Single Word Timing(1)(2)(3)
(1) In “gpmc_csi”, i = 0 to 7. In “gpmc_waitj”, j = 0 to 1
(2) FA5 parameter illustrates amount of time required to internally sample input Data. It is expressed in number of GPMC functional clock
cycles. From start of read cycle and after FA5 functional clock cycles, input Data will be internally sampled by active functional clock
edge. FA5 value should be stored inside AccessTime register bits field.
(3) GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally
(4) The "DIR" (direction control) output signal is NOT pinned out on any of the device pads. It is an internal signal only representing a signal
direction on the GPMC data bus.
130
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
gpmc_fclk
gpmc_clk
FA1
gpmc_csi
FA9
gpmc_a27
gpmc_a[10:1]
Address (MSB)
FA0
FA10
gpmc_ben0
FA0
FA10
gpmc_ben1
FA3
FA12
gpmc_advn_ale
FA27
FA25
gpmc_wen
FA29
FA28
Valid Address (LSB)
gpmc_ad[15:0]
Data OUT
gpmc_waitj
OUT
DIR
GPMC_12
Figure 5-27. GPMC / Multiplexed NOR Flash - Asynchronous Write - Single Word Timing(1)
(1) In “gpmc_csi”, i = 0 to 7. In “gpmc_waitj”, j = 0 to 1.
(2) The "DIR" (direction control) output signal is NOT pinned out on any of the device pads. It is an internal signal only representing a signal
direction on the GPMC data bus.
5.9.6.5.3 GPMC/NAND Flash Interface Asynchronous Timing
Table 5-37 and Table 5-38 assume testing over the recommended operating conditions and electrical
characteristic conditions below (see Figure 5-28, Figure 5-29, Figure 5-30 and Figure 5-31).
Table 5-37. GPMC/NAND Flash Interface Timing Requirements(1)
NO.
PARAMETER
DESCRIPTION
tacc(DAT)
Data maximum access time (GPMC_FCLK Cycles)
-
tsu(DV-OEH)
Setup time, read gpmc_ad[15:0] valid before gpmc_oen_ren high
-
th(OEH-DV)
Hold time, read gpmc_ad[15:0] valid after gpmc_oen_ren high
GNF12
MIN
MAX
UNIT
J
cycles
1.9
ns
1
ns
(1) J = AccessTime * (TimeParaGranularity + 1)
Table 5-38. GPMC/NAND Flash Interface Switching Characteristics
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
-
tr(DO)
Rising time, gpmc_ad[15:0] output data
0.447
4.067
ns
-
0.43
4.463
ns
tf(DO)
Fallling time, gpmc_ad[15:0] output data
GNF0
tw(nWEV)
Pulse duration, gpmc_wen valid time
GNF1
td(nCSV-nWEV)
Delay time, gpmc_cs[7:0] valid to gpmc_wen valid
A
B - 0.2 (2)
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
(1)
B + 2.0
(2)
Specifications
ns
ns
131
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-38. GPMC/NAND Flash Interface Switching Characteristics (continued)
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
GNF2
NO.
td(CLEH-nWEV)
Delay time, gpmc_ben[1:0] high to gpmc_wen valid
C - 0.2 (3)
C + 2.0
ns
GNF3
td(nWEV-DV)
Delay time, gpmc_ad[15:0] valid to gpmc_wen valid
D - 0.2 (4)
D + 2.0
ns
GNF4
td(nWEIV-DIV)
Delay time, gpmc_wen invalid to gpmc_ad[15:0] invalid
E - 0.2 (5)
E + 2.0
ns
GNF5
td(nWEIV-CLEIV)
Delay time, gpmc_wen invalid to gpmc_ben[1:0] invalid
F - 0.2 (6)
F + 2.0
ns
GNF6
td(nWEIV-nCSIV)
Delay time, gpmc_wen invalid to gpmc_cs[7:0] invalid
G - 0.2 (7)
G + 2.0
ns
GNF7
td(ALEH-nWEV)
Delay time, gpmc_advn_ale high to gpmc_wen valid
C - 0.2 (3)
C + 2.0
ns
GNF8
td(nWEIV-ALEIV)
Delay time, gpmc_wen invalid to gpmc_advn_ale invalid
F - 0.2 (6)
F + 2.0
ns
GNF9
tc(nWE)
Cycle time, write cycle time
(3)
(4)
(5)
(6)
(7)
(3)
(6)
(8)
H
GNF10
td(nCSV-nOEV)
Delay time, gpmc_cs[7:0] valid to gpmc_oen_ren valid
GNF13
tw(nOEV)
Pulse duration, gpmc_oen_ren valid time
I - 0.2
GNF14
tc(nOE)
Cycle time, read cycle time
GNF15
td(nOEIV-nCSIV)
Delay time, gpmc_oen_ren invalid to gpmc_cs[7:0] invalid
(9)
I + 2.0
L
M - 0.2
(11)
ns
(9)
ns
K
ns
(10)
ns
M + 2.0
(11)
ns
(1) A = (WEOffTime – WEOnTime) * (TimeParaGranularity + 1) * GPMC_FCLK
(2) B = ((WEOnTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay – CSExtraDelay)) * GPMC_FCLK
(3) C = ((WEOnTime – ADVOnTime) * (TimeParaGranularity + 1) + 0.5 * (WEExtraDelay – ADVExtraDelay)) * GPMC_FCLK
(4) D = (WEOnTime * (TimeParaGranularity + 1) + 0.5 * WEExtraDelay ) * GPMC_FCLK
(5) E = (WrCycleTime – WEOffTime * (TimeParaGranularity + 1) – 0.5 * WEExtraDelay ) * GPMC_FCLK
(6) F = (ADVWrOffTime – WEOffTime * (TimeParaGranularity + 1) + 0.5 * (ADVExtraDelay – WEExtraDelay ) * GPMC_FCLK
(7) G = (CSWrOffTime – WEOffTime * (TimeParaGranularity + 1) + 0.5 * (CSExtraDelay – WEExtraDelay ) * GPMC_FCLK
(8) H = WrCycleTime * (1 + TimeParaGranularity) * GPMC_FCLK
(9) I = ((OEOffTime + (n – 1) * PageBurstAccessTime – CSOnTime) * (TimeParaGranularity + 1) + 0.5 * (OEExtraDelay – CSExtraDelay)) *
GPMC_FCLK
(10) K = (OEOffTime – OEOnTime) * (1 + TimeParaGranularity) * GPMC_FCLK
(11) L = RdCycleTime * (1 + TimeParaGranularity) * GPMC_FCLK
(12) M = (CSRdOffTime – OEOffTime * (TimeParaGranularity + 1) + 0.5 * (CSExtraDelay – OEExtraDelay ) * GPMC_FCLK
132
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
GPMC_FCLK
GNF1
GNF6
GNF2
GNF5
gpmc_csi
gpmc_ben0
gpmc_advn_ale
gpmc_oen_ren
GNF0
gpmc_wen
GNF3
GNF4
Command
gpmc_ad[15:0]
GPMC_13
(1)
Figure 5-28. GPMC / NAND Flash - Command Latch Cycle Timing
(1) In gpmc_csi, i = 0 to 7.
GPMC_FCLK
GNF1
GNF6
GNF7
GNF8
gpmc_csi
gpmc_ben0
gpmc_advn_ale
gpmc_oen_ren
GNF9
GNF0
gpmc_wen
GNF3
gpmc_ad[15:0]
GNF4
Address
GPMC_14
Figure 5-29. GPMC / NAND Flash - Address Latch Cycle Timing(1)
(1) In gpmc_csi, i = 0 to 7.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
133
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
GPMC_FCLK
GNF12
GNF10
GNF15
gpmc_csi
gpmc_ben0
gpmc_advn_ale
GNF14
GNF13
gpmc_oen_ren
gpmc_ad[15:0]
DATA
gpmc_waitj
GPMC_15
Figure 5-30. GPMC / NAND Flash - Data Read Cycle Timing(1)(2)(3)
(1) GNF12 parameter illustrates amount of time required to internally sample input Data. It is expressed in number of GPMC functional
clock cycles. From start of read cycle and after GNF12 functional clock cycles, input data will be internally sampled by active functional
clock edge. GNF12 value must be stored inside AccessTime register bits field.
(2) GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally.
(3) In gpmc_csi, i = 0 to 7. In gpmc_waitj, j = 0 to 1.
GPMC_FCLK
GNF1
GNF6
gpmc_csi
gpmc_ben0
gpmc_advn_ale
gpmc_oen_ren
GNF9
GNF0
gpmc_wen
GNF3
GNF4
gpmc_ad[15:0]
DATA
GPMC_16
(1)
Figure 5-31. GPMC / NAND Flash - Data Write Cycle Timing
(1) In gpmc_csi, i = 0 to 7.
NOTE
To configure the desired virtual mode the user must set MODESELECT bit and
DELAYMODE bitfield for each corresponding pad control register.
The pad control registers are presented Table 4-29 and described in Device TRM, Control
Module section.
134
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
5.9.6.6
SPRS975C – AUGUST 2016 – REVISED JULY 2017
GP Timers
The device has eight GP timers: TIMER1 through TIMER8.
• TIMER1 (1-ms tick) includes a specific function to generate accurate tick interrupts to the operating
system and it belongs to the PD_WKUPAON domain.
• TIMER2 through TIMER8 belong to the PD_COREAON module.
Each timer can be clocked from the system clock (19.2, 20, or 27 MHz) or the 32-kHz clock. Select the
clock source at the power, reset, and clock management (PRCM) module level.
Each timer provides an interrupt through the device IRQ_CROSSBAR.
Each timer is connected to an external pin by their PWM output or their event capture input pin (for
external timer triggering).
5.9.6.6.1 GP Timer Features
The following are the main features of the GP timer controllers:
• Level 4 (L4) slave interface support:
– 32-bit data bus width
– 32- or 16-bit access supported
– 8-bit access not supported
– 10-bit address bus width
– Burst mode not supported
– Write nonposted transaction mode supported
• Interrupts generated on overflow, compare, and capture
• Free-running 32-bit upward counter
• Compare and capture modes
• Autoreload mode
• Start and stop mode
• Programmable divider clock source (2n, where n = [0:8])
• Dedicated input trigger for capture mode and dedicated output trigger/PWM signal
• Dedicated GP output signal for using the TIMERi_GPO_CFG signal
• On-the-fly read/write register (while counting)
• 1-ms tick with 32.768-Hz functional clock generated (only TIMER1)
5.9.6.7
I2C
The device includes 2 inter-integrated circuit (I2C) modules which provide an interface to other devices
compliant with Philips Semiconductors Inter-IC bus (I2C-bus™) specification version 2.1. External
components attached to this 2-wire serial bus can transmit/receive 8-bit data to/from the device through
the I2C module.
NOTE
Note that, I2C1 and I2C2, due to characteristics of the open drain IO cells, HS mode is not
supported.
NOTE
Inter-integrated circuit i (i=1 to 2) module is also referred to as I2Ci.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
135
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
NOTE
For more information, see the Multimaster I2C Controller section of the Device TRM.
Table 5-39 and Figure 5-32 assume testing over the recommended operating conditions and electrical
characteristic conditions below.
Table 5-39. Timing Requirements for I2C Input Timings(1)
NO.
1
PARAMETER
DESCRIPTION
STANDARD MODE
MIN
FAST MODE
MAX
MIN
MAX
UNIT
tc(SCL)
Cycle time, SCL
10
2.5
µs
2
tsu(SCLH-SDAL)
Setup time, SCL high before SDA low (for a
repeated START condition)
4.7
0.6
µs
3
th(SDAL-SCLL)
Hold time, SCL low after SDA low (for a START
and a repeated START condition)
4
0.6
µs
4
tw(SCLL)
Pulse duration, SCL low
4.7
1.3
µs
5
tw(SCLH)
Pulse duration, SCL high
4
0.6
µs
6
tsu(SDAV-SCLH)
Setup time, SDA valid before SCL high
250
100(2)
7
th(SCLL-SDAV)
Hold time, SDA valid after SCL low
0(3)
8
tw(SDAH)
Pulse duration, SDA high between STOP and
START conditions
4.7
9
tr(SDA)
Rise time, SDA
1000
20 + 0.1Cb
300
ns
10
tr(SCL)
Rise time, SCL
1000
20 + 0.1Cb
300
ns
11
tf(SDA)
Fall time, SDA
300
20 + 0.1Cb
300
ns
12
tf(SCL)
Fall time, SCL
300
20 + 0.1Cb
300
ns
13
tsu(SCLH-SDAH)
Setup time, SCL high before SDA high (for
STOP condition)
14
tw(SP)
Pulse duration, spike (must be suppressed)
15
Cb (5)
Capacitive load for each bus line
3.45(4)
0(3)
ns
0.9(4)
1.3
(5)
(5)
(5)
4
(5)
µs
0.6
0
400
µs
µs
50
ns
400
pF
(1) The I2C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered
down.
(2) A Fast-mode I2C-bus™ device can be used in a Standard-mode I2C-bus system, but the requirement tsu(SDA-SCLH)≥ 250 ns must then be
met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch
the LOW period of the SCL signal, it must output the next data bit to the SDA line tr max + tsu(SDA-SCLH)= 1000 + 250 = 1250 ns
(according to the Standard-mode I2C-Bus Specification) before the SCL line is released.
(3) A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL signal) to bridge the
undefined region of the falling edge of SCL.
(4) The maximum th(SDA-SCLL) has only to be met if the device does not stretch the low period [tw(SCLL)] of the SCL signal.
(5) Cb = total capacitance of one bus line in pF. If mixed with HS-mode devices, faster fall-times are allowed.
136
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
9
11
I2Ci_SDA
6
8
14
4
13
5
10
I2Ci_SCL
1
12
3
7
2
3
Stop
Start
Repeated
Start
Stop
SPRS91v_I2C_01
Figure 5-32. I2C Receive Timing
Table 5-40 and Figure 5-33 assume testing over the recommended operating conditions and electrical
characteristic conditions below.
Table 5-40. Switching Characteristics Over Recommended Operating Conditions for I2C Output Timings(2)
NO.
16
PARAMETER
DESCRIPTION
STANDARD MODE
MIN
FAST MODE
MAX
MIN
MAX
UNIT
tc(SCL)
Cycle time, SCL
10
2.5
µs
17
tsu(SCLH-SDAL)
Setup time, SCL high before SDA low (for a
repeated START condition)
4.7
0.6
µs
18
th(SDAL-SCLL)
Hold time, SCL low after SDA low (for a
START and a repeated START condition)
4
0.6
µs
19
tw(SCLL)
Pulse duration, SCL low
4.7
1.3
µs
20
tw(SCLH)
Pulse duration, SCL high
4
0.6
µs
21
tsu(SDAV-SCLH)
Setup time, SDA valid before SCL high
250
100
ns
22
th(SCLL-SDAV)
Hold time, SDA valid after SCL low (for I2C
bus devices)
23
tw(SDAH)
Pulse duration, SDA high between STOP and
START conditions
24
tr(SDA)
Rise time, SDA
1000
20 + 0.1Cb
300
ns
25
tr(SCL)
Rise time, SCL
1000
20 + 0.1Cb
300
ns
26
tf(SDA)
Fall time, SDA
300
20 + 0.1Cb
300
ns
27
tf(SCL)
Fall time, SCL
300
20 + 0.1Cb
300
ns
28
tsu(SCLH-SDAH)
Setup time, SCL high before SDA high (for
STOP condition)
29
Cp
Capacitance for each I2C pin
0
3.45
0
4.7
0.9
1.3
(1)
(1)
(1)
4
(1)
µs
0.6
10
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
µs
µs
10
Specifications
pF
137
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(1) Cb = total capacitance of one bus line in pF. If mixed with HS-mode devices, faster fall-times are allowed.
(2) Software must properly configure the I2C module registers to achieve the timings shown in this table. See the Device TRM for details.
24
26
I2Ci_SDA
21
23
19
28
20
25
I2Ci_SCL
27
16
18
22
17
18
Stop
Start
Repeated
Start
Stop
SPRS91v_I2C_02
Figure 5-33. I2C Transmit Timing
5.9.6.8
UART
The UART performs serial-to-parallel conversions on data received from a peripheral device and parallelto-serial conversion on data received from the CPU. There are 3 UART modules in the device. Each
UART can be used for configuration and data exchange with a number of external peripheral devices or
interprocessor communication between devices.
The UARTi (where i = 1 to 3) include the following features:
• 16C750 compatibility
• 64-byte FIFO buffer for receiver and 64-byte FIFO for transmitter
• Baud generation based on programmable divisors N (where N = 1…16 384) operating from a fixed
functional clock of 48 MHz or 192 MHz
• Break character detection and generation
• Configurable data format:
– Data bit: 5, 6, 7, or 8 bits
– Parity bit: Even, odd, none
– Stop-bit: 1, 1.5, 2 bit(s)
• Flow control: Hardware (RTS/CTS) or software (XON/XOFF)
NOTE
For more information, see the UART section of the Device TRM.
Table 5-41, Table 5-42 and Figure 5-34 assume testing over the recommended operating conditions and
electrical characteristic conditions below.
Table 5-41. Timing Requirements for UART
NO.
MIN
MAX
UNIT
4
tw(RX)
Pulse width, receive data bit, 15/30/100pF high or low
0.96U(1)
1.05U(1)
ns
5
tw(CTS)
Pulse width, receive start bit, 15/30/100pF high or low
0.96U(1)
1.05U(1)
ns
138
PARAMETER
DESCRIPTION
(2)
ns
ns
td(RTS-TX)
Delay time, transmit start bit to transmit data
P
td(CTS-TX)
Delay time, receive start bit to transmit data
P(2)
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) U = UART baud time = 1/programmed baud rate
(2) P = Clock period of the reference clock (FCLK, usually 48 MHz or 192MHz).
Table 5-42. Switching Characteristics Over Recommended Operating Conditions for UART
NO.
PARAMETER
DESCRIPTION
MIN
MAX
15 pF
12
30 pF
0.23
UNIT
f(baud)
Maximum programmable baud rate
2
tw(TX)
Pulse width, transmit data bit, 15/30/100 pF high or low
U - 2(1)
U + 2(1)
ns
3
tw(RTS)
Pulse width, transmit start bit, 15/30/100 pF high or low
U - 2(1)
U + 2(1)
ns
100 pF
MHz
0.115
(1) U = UART baud time = 1/programmed baud rate
3
2
Start
Bit
UARTi_TXD
Data Bits
5
4
Start
Bit
UARTi_RXD
Data Bits
SPRS91v_UART_01
Figure 5-34. UART Timing
CAUTION
The IO timings provided in this section are only valid if signals within a single
IOSET are used. The IOSETs are defined in Table 5-43.
In Table 5-43 are presented the specific groupings of signals (IOSET) for use with UART.
Table 5-43. UART1-3 IOSETs
SIGNALS
IOSET1
IOSET2
BALL
IOSET3
BALL
MUX
MUX
uart1_rxd
F13
0
F13
0
uart1_txd
E14
0
E14
0
uart1_rtsn
C14
0
uart1_ctsn
F14
0
BALL
MUX
UART1
UART2
uart2_rxd
E7
2
D14
0
uart2_txd
F7
2
D15
0
uart2_rtsn
F16
0
uart2_ctsn
F15
0
UART3
uart3_rxd
W7
4
L1
1
M2
1
uart3_txd
W6
4
L2
1
R6
1
R7
1
T5
1
uart3_rtsn
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
139
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-43. UART1-3 IOSETs (continued)
SIGNALS
IOSET1
BALL
IOSET2
MUX
MUX
BALL
MUX
N4
1
U6
1
uart3_ctsn
5.9.6.9
IOSET3
BALL
McSPI
The McSPI is a master/slave synchronous serial bus. There are four separate McSPI modules (SPI1,
SPI2, SPI3, and SPI4) in the device. All these four modules support up to four external devices (four chip
selects) and are able to work as both master and slave.
The McSPI modules include the following main features:
• Serial clock with programmable frequency, polarity, and phase for each channel
• Wide selection of SPI word lengths, ranging from 4 to 32 bits
• Up to four master channels, or single channel in slave mode
• Master multichannel mode:
– Full duplex/half duplex
– Transmit-only/receive-only/transmit-and-receive modes
– Flexible input/output (I/O) port controls per channel
– Programmable clock granularity
– SPI configuration per channel. This means, clock definition, polarity enabling and word width
• Power management through wake-up capabilities
• Programmable timing control between chip select and external clock generation
• Built-in FIFO available for a single channel.
• Each SPI module supports multiple chip select pins spim_cs[i], where i = 1 to 4.
NOTE
For more information, see the Serial Communication Interface section of the device TRM.
NOTE
The McSPIm module (m = 1 to 4) is also referred to as SPIm.
Table 5-44, Figure 5-35 and Figure 5-36 present Timing Requirements for McSPI - Master Mode.
Table 5-44. Timing Requirements for SPI - Master Mode
NO.
PARAMETER
DESCRIPTION
SM1
tc(SPICLK)
Cycle time, spi_sclk (1) (2)
SM2
tw(SPICLKL)
Typical Pulse duration, spi_sclk low
SM3
tw(SPICLKH)
Typical Pulse duration, spi_sclk high
SM4
tsu(MISO-SPICLK)
SM5
th(SPICLK-MISO)
SM6
SM7
140
td(SPICLK-SIMO)
td(CS-SIMO)
Specifications
MODE
MIN
SPI1/2/3/
4
20.8
ns
0.5*P-1
(3)
ns
0.5*P-1
(3)
ns
Setup time, spi_d[x] valid before spi_sclk active edge (1)
2.29
ns
Hold time, spi_d[x] valid after spi_sclk active edge (1)
2.67
ns
(1)
(1)
Delay time, spi_sclk active edge to spi_d[x] transition
(1)
MAX
UNIT
SPI1/2/4
-3.57
3.57
ns
SPI3
-3.57
3.57
ns
3.57
ns
Delay time, spi_cs[x] active edge to spi_d[x] transition
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-44. Timing Requirements for SPI - Master Mode (continued)
NO.
PARAMETER
DESCRIPTION
SM8
td(CS-SPICLK)
Delay time, spi_cs[x] active to spi_sclk first edge (1)
MODE
MIN
MAX
UNIT
MASTER B-4.2 (5)
_PHA0
ns
MASTER A-4.2 (6)
_PHA1
ns
MASTER A-4.2 (6)
_PHA0
ns
MASTER B-4.2 (5)
_PHA1
ns
(4)
(4)
SM9
td(SPICLK-CS)
Delay time, spi_sclk last edge to spi_cs[x] inactive
(1)
(4)
(4)
(1) This timing applies to all configurations regardless of SPI_CLK polarity and which clock edges are used to drive output data and capture
input data.
(2) Related to the SPI_CLK maximum frequency.
(3) P = SPICLK period.
(4) SPI_CLK phase is programmable with the PHA bit of the SPI_CH(i)CONF register.
(5) B = (TCS + 0.5) * TSPICLKREF * Fratio, where TCS is a bit field of the SPI_CH(i)CONF register and Fratio = Even ≥2.
(6) When P = 20.8 ns, A = (TCS + 1) * TSPICLKREF, where TCS is a bit field of the SPI_CH(i)CONF register. When P > 20.8 ns, A = (TCS
+ 0.5) * Fratio * TSPICLKREF, where TCS is a bit field of the SPI_CH(i)CONF register.
(7) The IO timings provided in this section are applicable for all combinations of signals for spi1 and spi2. However, the timings are only
valid for spi3 and spi4 if signals within a single IOSET are used. The IOSETs are defined in the following tables.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
141
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
PHA=0
EPOL=1
spim_cs(OUT)
SM1
SM3
SM8
spim_sclk(OUT)
SM2
SM9
POL=0
SM3
SM1
SM2
POL=1
spim_sclk(OUT)
SM7
SM6
Bit n-1
spim_d(OUT)
SM6
Bit n-2
Bit n-3
Bit n-4
Bit 0
PHA=1
EPOL=1
spim_cs(OUT)
SM2
SM1
SM8
spim_sclk(OUT)
SM3
SM9
POL=0
SM1
SM2
SM3
POL=1
spim_sclk(OUT)
SM6
spim_d(OUT)
Bit n-1
SM6
Bit n-2
SM6
Bit n-3
SM6
Bit 1
Bit0
SPRS91v_McSPI_01
Figure 5-35. McSPI - Master Mode Transmit
142
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
PHA=0
EPOL=1
spim_cs(OUT)
SM1
SM3
SM8
spim_sclk(OUT)
SM2
SM9
POL=0
SM3
SM1
SM2
POL=1
spim_sclk(OUT)
SM5
SM5
spim_d(IN)
SM4
SM4
Bit n-1
Bit n-2
Bit n-3
Bit n-4
Bit 0
PHA=1
EPOL=1
spim_cs(OUT)
SM2
SM1
SM8
spim_sclk(OUT)
SM3
SM9
POL=0
SM1
SM2
SM3
POL=1
spim_sclk(OUT)
SM5
SM4
SM4
Bit n-1
spim_d(IN)
SM5
Bit n-2
Bit n-3
Bit 1
Bit 0
SPRS91v_McSPI_02
Figure 5-36. McSPI - Master Mode Receive
Table 5-45, Figure 5-37 and Figure 5-38 present Timing Requirements for McSPI - Slave Mode.
Table 5-45. Timing Requirements for SPI - Slave Mode(5)
PARAMETER
DESCRIPTION
SS1 (1)
NO.
tc(SPICLK)
Cycle time, spi_sclk
SS2 (1)
tw(SPICLKL)
(3)
Typical Pulse duration, spi_sclk low
SS3 (1)
tw(SPICLKH)
(3)
Typical Pulse duration, spi_sclk high
0.45*P
ns
ns
(2)
MODE
MIN
SPI1
25
ns
33.3
ns
0.45*P
ns
SPI2/3/4
SS4
(1)
tsu(SIMO-SPICLK)
Setup time, spi_d[x] valid before spi_sclk active edge
2.82
SS5 (1)
th(SPICLK-SIMO)
Hold time, spi_d[x] valid after spi_sclk active edge
2.82
SS6 (1)
td(SPICLK-SOMI)
Delay time, spi_sclk active edge to mcspi_somi transition
SS7 (4)
td(CS-SOMI)
Delay time, spi_cs[x] active edge to mcspi_somi transition
MAX
UNIT
ns
SPI1
2
9.8
ns
SPI2/3/4
2
21
ns
16
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
143
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-45. Timing Requirements for SPI - Slave Mode(5) (continued)
NO.
SS8 (1)
SS9
(1)
PARAMETER
DESCRIPTION
tsu(CS-SPICLK)
Setup time, spi_cs[x] valid before spi_sclk first edge
MODE
2.82
MIN
MAX
UNIT
ns
th(SPICLK-CS)
Hold time, spi_cs[x] valid after spi_sclk last edge
2.82
ns
(1) This timing applies to all configurations regardless of SPI_CLK polarity and which clock edges are used to drive output data and capture
input data.
(2) When operating the SPI interface in RX-only mode, the minimum Cycle time is 26ns (38.4MHz)
(3) P = SPICLK period.
(4) PHA = 0; SPI_CLK phase is programmable with the PHA bit of the SPI_CH(i)CONF register.
(5) The IO timings provided in this section are applicable for all combinations of signals for spi1 and spi2. However, the timings are only
valid for spi3 and spi4 if signals within a single IOSET are used. The IOSETs are defined in the following tables.
PHA=0
EPOL=1
spim_cs(IN)
SS2
SS1
SS8
spim_sclk(IN)
SS3
SS9
POL=0
SS2
SS1
SS3
POL=1
spim_sclk(IN)
SS7
SS6
Bit n-1
spim_d(OUT)
SS6
Bit n-2
Bit n-3
Bit n-4
Bit 0
PHA=1
EPOL=1
spim_cs(IN)
SS2
SS1
SS8
spim_sclk(IN)
SS3
SS9
POL=0
SS3
SS1
SS2
POL=1
spim_sclk(IN)
SS6
spim_d(OUT)
Bit n-1
SS6
Bit n-2
SS6
Bit n-3
SS6
Bit 1
Bit 0
SPRS91v_McSPI_03
Figure 5-37. McSPI - Slave Mode Transmit
144
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
PHA=0
EPOL=1
spim_cs(IN)
SS2
SS1
SS8
spim_sclk(IN)
SS3
SS9
POL=0
SS2
SS1
SS3
POL=1
spim_sclk(IN)
SS5
SS4
SS4
SS5
Bit n-1
spim_d(IN)
Bit n-2
Bit n-3
Bit n-4
Bit 0
PHA=1
EPOL=1
spim_cs(IN)
SS2
SS1
SS8
spim_sclk(IN)
SS3
SS9
POL=0
SS3
SS1
SS2
POL=1
spim_sclk(IN)
SS4
SS5
SS4
Bit n-1
spim_d(IN)
SS5
Bit n-2
Bit n-3
Bit 1
Bit0
SPRS91v_McSPI_04
Figure 5-38. McSPI - Slave Mode Receive
CAUTION
The IO timings provided in this section are applicable for all combinations of
signals for SPI2 and SPI4. However, the timings are only valid for SPI1 and
SPI3 if signals within a single IOSET are used. The IOSETs are defined in
Table 5-46.
In Table 5-46 are presented the specific groupings of signals (IOSET) for use with McSPI.
Table 5-46. McSPI1/3 IOSETs
SIGNALS
IOSET1
BALL
IOSET2
MUX
BALL
IOSET3
MUX
BALL
MUX
0
M2
0
SPI1
spi1_sclk
M2
0
M2
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
145
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-46. McSPI1/3 IOSETs (continued)
SIGNALS
IOSET1
IOSET2
IOSET3
BALL
MUX
BALL
MUX
BALL
MUX
spi1_d1
U6
0
U6
0
U6
0
spi1_d0
T5
0
T5
0
T5
0
spi1_cs0
R6
0
R6
0
R6
0
R5
0
spi1_cs2
F14
5
spi1_cs3
C14
5
spi1_cs1
SPI3
spi3_sclk
F15
4
C6
4
spi3_d1
D14
4
F7
4
spi3_d0
D15
4
E7
4
spi3_cs0
F16
4
B6
4
5.9.6.10 QSPI
The Quad SPI (QSPI) module is a type of SPI module that allows single, dual or quad read access to
external SPI devices. This module has a memory mapped register interface, which provides a direct
interface for accessing data from external SPI devices and thus simplifying software requirements. It
works as a master only. There is one QSPI module in the device and it is primary intended for fast
booting from quad-SPI flash memories.
General SPI features:
• Programmable clock divider
• Six pin interface (DCLK, CS_N, DOUT, DIN, QDIN1, QDIN2)
• 4 external chip select signals
• Support for 3-, 4- or 6-pin SPI interface
• Programmable CS_N to DOUT delay from 0 to 3 DCLKs
• Programmable signal polarities
• Programmable active clock edge
• Software controllable interface allowing for any type of SPI transfer
NOTE
For more information, see the Quad Serial Peripheral Interface section of the Device TRM.
CAUTION
The IO Timings provided in this section are only valid when all QSPI Chip
Selects used in a system are configured to use the same Clock Mode (either
Clock Mode 0 or Clock Mode 3).
Table 5-47 and Table 5-48 present Timing and Switching Characteristics for Quad SPI Interface.
146
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-47. Switching Characteristics for QSPI
No
1
PARAMETER
DESCRIPTION
Mode
MIN
tc(SCLK)
Cycle time, sclk
Default
Timing
Mode,
Clock
Mode 0
10.4
MAX
UNIT
ns
Default
Timing
Mode,
Clock
Mode 3
15.625
ns
Y*P-1 (1)
ns
2
tw(SCLKL)
Pulse duration, sclk low
3
tw(SCLKH)
Pulse duration, sclk high
4
td(CS-SCLK)
Delay time, sclk falling edge to cs active edge, CS3:0
Default
Timing
Mode
-M*P-1
(2) (3)
-M*P+1
(2) (3)
ns
5
td(SCLK-CS)
Delay time, sclk falling edge to cs inactive edge, CS3:0
Default
Timing
Mode
N*P-1 (2)
(3)
N*P+1
(2) (3)
ns
6
td(SCLK-D1)
Delay time, sclk falling edge to d[0] transition
Default
Timing
Mode
-1
1
ns
7
tena(CS-D1LZ)
Enable time, cs active edge to d[0] driven (lo-z)
-P-3.5
-P+2.5
ns
8
tdis(CS-D1Z)
Disable time, cs active edge to d[0] tri-stated (hi-z)
-P-2.5
-P+2.0
ns
9
td(SCLK-D1)
Delay time, sclk first falling edge to first d[0] transition
-1-P
-1-P
ns
Y*P-1 (1)
PHA=0
Only,
Default
Timing
Mode
ns
(1) The Y parameter is defined as follows: If DCLK_DIV is 0 or ODD then, Y equals 0.5. If DCLK_DIV is EVEN then, Y equals
(DCLK_DIV/2) / (DCLK_DIV+1). For best performance, it is recommended to use a DCLK_DIV of 0 or ODD to minimize the duty cycle
distortion. The HSDIVIDER on CLKOUTX2_H13 output of DPLL_PER can be used to achieve the desired clock divider ratio. All
required details about clock division factor DCLK_DIV can be found in the device TRM.
(2) P = SCLK period.
(3) M=QSPI_SPI_DC_REG.DDx + 1 when Clock Mode 0. M=QSPI_SPI_DC_REG.DDx when Clock Mode 3. N = 2 when Clock Mode 0. N
= 3 when Clock Mode 3.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
147
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
PHA=1
cs
Q5
Q1
POL=1
Q4
Q3
Q2
sclk
Q15
Q14
Q6
Q7
Q6
Command
Bit n-1
d[0]
Command
Bit n-2
d[3:1]
Q12 Q13
Read Data
Read Data
Bit 1
Bit 0
Q14
Q15
Q12 Q13
Read Data
Read Data
Bit 1
Bit 0
SPRS85v_TIMING_OSPI1_01
Figure 5-39. QSPI Read (Clock Mode 3)
PHA=0
cs
Q5
Q4
Q1
Q2
POL=0
Q3
sclk
POL=0
rtclk
Q7
d[0]
Q6
Q9
Command Command
Bit n-1
Bit n-2
Q12 Q13
Read Data
Bit 1
Q12 Q13
Read Data
Bit 0
Q12 Q13
Read Data
Bit 1
d[3:1]
Q12 Q13
Read Data
Bit 0
SPRS85v_TIMING_OSPI1_02
Figure 5-40. QSPI Read (Clock Mode 0)
148
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-48. Timing Requirements for QSPI
No
PARAMETER
DESCRIPTION
MODE
MIN
12
tsu(D-RTCLK)
Setup time, d[3:0] valid before falling rtclk edge
Default
Timing
Mode,
Clock
Mode 0
2.9
ns
tsu(D-SCLK)
Setup time, d[3:0] valid before falling sclk edge
Default
Timing
Mode,
Clock
Mode 3
5.7
ns
th(RTCLK-D)
Hold time, d[3:0] valid after falling rtclk edge
Default
Timing
Mode,
Clock
Mode 0
-0.1
ns
th(SCLK-D)
Hold time, d[3:0] valid after falling sclk edge
Default
Timing
Mode,
Clock
Mode 3
0.1
ns
14
tsu(D-SCLK)
Setup time, final d[3:0] bit valid before final falling sclk edge
Default
Timing
Mode,
Clock
Mode 3
5.7-P (1)
ns
15
th(SCLK-D)
Hold time, final d[3:0] bit valid after final falling sclk edge
Default
Timing
Mode,
Clock
Mode 3
0.1+P (1)
ns
13
MAX
UNIT
(1) P = SCLK period.
(2) Clock Modes 1 and 2 are not supported.
(3) The Device captures data on the falling clock edge in Clock Mode 0 and 3, as opposed to the traditional rising clock edge. Although
non-standard, the falling-edge-based setup and hold time timings have been designed to be compatible with standard SPI devices that
launch data on the falling edge in Clock Modes 0 and 3.
PHA=1
cs
Q5
POL=1
Q1
Q4
Q3
Q2
sclk
Q7
d[0]
Command
Bit n-1
Command
Bit n-2
Q8
Q6
Q6
Q6
Q6
Write Data
Bit 1
Write Data
Bit 0
d[3:1]
SPRS85v_TIMING_OSPI1_03
Figure 5-41. QSPI Write (Clock Mode 3)
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
149
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
PHA=0
cs
Q5
Q4
Q1
Q2
POL=0
Q3
sclk
Q9
Q6
Command Command
Bit n-1
Bit n-2
Q7
d[0]
Q6
Q8
Q6
Write Data
Bit 1
Write Data
Bit 0
d[3:1]
SPRS85v_TIMING_OSPI1_04
Figure 5-42. QSPI Write (Clock Mode 0)
NOTE
To configure the desired virtual mode the user must set MODESELECT bit and
DELAYMODE bitfield for each corresponding pad control register.
The pad control registers are presented in Table 4-29 and described in Device TRM, Control
Module section.
CAUTION
The IO timings provided in this section are only valid if signals within a single
IOSET are used. The IOSETs are defined in Table 5-49.
In Table 5-49 are presented the specific groupings of signals (IOSET) for use with QSPI.
Table 5-49. QSPI IOSETs
SIGNALS
IOSET1
IOSET2
IOSET3
IOSET4
BALL
MUX
BALL
MUX
BALL
MUX
BALL
MUX
qspi1_sclk
C8
1
C8
1
C8
1
C8
1
qspi1_rtclk
C14
8
B7
1
F13
5
D8
2
qspi1_d0
B9
1
B9
1
B9
1
B9
1
qspi1_d1
F10
1
F10
1
F10
1
F10
1
qspi1_d2
A9
1
A9
1
A9
1
A9
1
qspi1_d3
D10
1
D10
1
D10
1
D10
1
qspi1_cs0
E10
1
E10
1
E10
1
E10
1
F15
5
qspi1_cs1
150
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
5.9.6.11 McASP
The multichannel audio serial port (McASP) functions as a general-purpose audio serial port optimized for
the needs of multichannel audio applications. The McASP is useful for time-division multiplexed (TDM)
stream, Inter-Integrated Sound (I2S) protocols, and inter-component digital audio interface transmission
(DIT).
NOTE
For more information, see the Serial Communication Interface section of the Device TRM.
Table 5-50, Table 5-51, Table 5-52 and Figure 5-43 present Timing Requirements for McASP1 to
McASP3.
Table 5-50. Timing Requirements for McASP1 (1)
NO.
PARAMETER
DESCRIPTION
1
tc(AHCLKX)
Cycle time, AHCLKX
2
tw(AHCLKX)
Pulse duration, AHCLKX high or low
3
tc(ACLKRX)
Cycle time, ACLKR/X
4
5
6
7
8
tw(ACLKRX)
tsu(AFSRX-ACLK)
th(ACLK-AFSRX)
tsu(AXR-ACLK)
th(ACLK-AXR)
Pulse duration, ACLKR/X high or low
Setup time, AFSR/X input valid before ACLKR/X
Hold time, AFSR/X input valid after ACLKR/X
Setup time, AXR input valid before ACLKR/X
Hold time, AXR input valid after ACLKR/X
MODE
MIN
MAX
UNIT
20
ns
0.35P
ns
(2)
Any Other Conditions
20
ns
ACLKX/AFSX (In Sync
Mode), ACLKR/AFSR (In
Async Mode), and AXR
are all inputs
15.258
ns
Any Other Conditions
0.5R - 3
ns
ACLKX/AFSX (In Sync
Mode), ACLKR/AFSR (In
Async Mode), and AXR
are all inputs
0.38R
ns
(3)
(3)
ACLKR/X int
18.5
ns
ACLKR/X ext in
ACLKR/X ext out
3
ns
ACLKR/X int
0.5
ns
ACLKR/X ext in
ACLKR/X ext out
0.4
ns
ACLKR/X int
18.5
ns
ACLKR/X ext in
ACLKR/X ext out
3
ns
ACLKR/X int
0.5
ns
ACLKR/X ext in
ACLKR/X ext out
0.4
ns
(1) ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
(2) P = AHCLKX period in ns.
(3) R = ACLKR/X period in ns.
Table 5-51. Timing Requirements for McASP2 (1)
NO.
PARAMETER
DESCRIPTION
1
tc(AHCLKX)
Cycle time, AHCLKX
2
tw(AHCLKX)
Pulse duration, AHCLKX high or low
MODE
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
MIN
MAX
UNIT
20
ns
0.35P
ns
(2)
Specifications
151
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-51. Timing Requirements for McASP2 (1) (continued)
NO.
3
4
5
6
7
8
PARAMETER
DESCRIPTION
tc(ACLKRX)
Cycle time, ACLKR/X
tw(ACLKRX)
tsu(AFSRX-ACLK)
th(ACLK-AFSRX)
tsu(AXR-ACLK)
th(ACLK-AXR)
Pulse duration, ACLKR/X high or low
Setup time, AFSR/X input valid before ACLKR/X
Hold time, AFSR/X input valid after ACLKR/X
Setup time, AXR input valid before ACLKR/X
Hold time, AXR input valid after ACLKR/X
MODE
MIN
Any Other Conditions
20
MAX
ns
IOSET1 only,
ACLKX/AFSX (In Sync
Mode), ACLKR/AFSR (In
Async Mode), and AXR
are all inputs
15.258
ns
Any Other Conditions
0.5R - 3
ns
IOSET1 only,
ACLKX/AFSX (In Sync
Mode), ACLKR/AFSR (In
Async Mode), and AXR
are all inputs
0.38R
ns
(3)
(3)
UNIT
ACLKR/X int
18.5
ns
IOSET1 (vout1_*):
ACLKR/X ext in
IOSET1 (vout1_*):
ACLKR/X ext out
4
ns
IOSET2 (gpmc_*):
ACLKR/X ext in
IOSET2 (gpmc_*):
ACLKR/X ext out
3
ns
ACLKR/X int
0.5
ns
ACLKR/X ext in
ACLKR/X ext out
0.4
ns
ACLKR/X int
18.5
ns
IOSET1 (vout1_*):
ACLKR/X ext in
IOSET1 (vout1_*):
ACLKR/X ext out
12
ns
IOSET2 (gpmc_*):
ACLKR/X ext in
IOSET2 (gpmc_*):
ACLKR/X ext out
3
ns
ACLKR/X int
0.5
ns
ACLKR/X ext in
ACLKR/X ext out
0.4
ns
(1) ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
(2) P = AHCLKX period in ns.
(3) R = ACLKR/X period in ns.
Table 5-52. Timing Requirements for McASP3 (1)
NO.
152
PARAMETER
DESCRIPTION
1
tc(AHCLKX)
Cycle time, AHCLKX
2
tw(AHCLKX)
Pulse duration, AHCLKX high or low
3
tc(ACLKRX)
Cycle time, ACLKR/X
4
tw(ACLKRX)
Pulse duration, ACLKR/X high or low
5
tsu(AFSRX-ACLK)
Setup time, AFSR/X input valid before ACLKR/X
Specifications
MODE
MIN
MAX
UNIT
20
ns
0.35P
ns
20
ns
0.5R - 3
ns
ACLKR/X int
18.2
ns
ACLKR/X ext in
ACLKR/X ext out
4
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-52. Timing Requirements for McASP3 (1) (continued)
NO.
PARAMETER
DESCRIPTION
6
th(ACLK-AFSRX)
Hold time, AFSR/X input valid after ACLKR/X
tsu(AXR-ACLK)
8
th(ACLK-AXR)
Setup time, AXR input valid before ACLKX
Hold time, AXR input valid after ACLKX
MODE
MIN
ACLKR/X int
0.5
MAX
UNIT
ns
ACLKR/X ext in
ACLKR/X ext out
0.4
ns
ACLKX int (ASYNC=0)
18.2
ns
ACLKR/X ext in
ACLKR/X ext out
12
ns
ACLKX int (ASYNC=0)
0.5
ns
ACLKR/X ext in
ACLKR/X ext out
0.5
ns
(1) ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1 (NOT SUPPORTED)
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
(2) P = AHCLKX period in ns.
(3) R = ACLKR/X period in ns.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
153
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
2
1
2
AHCLKX (Falling Edge Polarity)
AHCLKX (Rising Edge Polarity)
4
3
4
ACLKR/X (CLKRP = CLKXP = 0)(A)
ACLKR/X (CLKRP = CLKXP = 1)(B)
6
5
AFSR/X (Bit Width, 0 Bit Delay)
AFSR/X (Bit Width, 1 Bit Delay)
AFSR/X (Bit Width, 2 Bit Delay)
AFSR/X (Slot Width, 0 Bit Delay)
AFSR/X (Slot Width, 1 Bit Delay)
AFSR/X (Slot Width, 2 Bit Delay)
8
7
AXR[n] (Data In/Receive)
A0
A1
A30 A31 B0 B1
B30 B31 C0 C1
C2 C3
C31
SPRS91v_McASP_01
A.
B.
For CLKRP = CLKXP =
receiver is configured for
For CLKRP = CLKXP =
receiver is configured for
0, the McASP transmitter is configured for rising edge (to shift data out) and the McASP
falling edge (to shift data in).
1, the McASP transmitter is configured for falling edge (to shift data out) and the McASP
rising edge (to shift data in).
Figure 5-43. McASP Input Timing
Table 5-53, Table 5-54, Table 5-55 and Figure 5-44 present Switching Characteristics Over
Recommended Operating Conditions for McASP1 to McASP3.
Table 5-53. Switching Characteristics Over Recommended Operating Conditions for McASP1
NO.
PARAMETER
DESCRIPTION
9
tc(AHCLKX)
Cycle time, AHCLKX
10
tw(AHCLKX)
Pulse duration, AHCLKX high or low
11
tc(ACLKRX)
Cycle time, ACLKR/X
12
tw(ACLKRX)
Pulse duration, ACLKR/X high or low
13
td(ACLK-AFSXR)
Delay time, ACLKR/X transmit edge to AFSX/R output
valid
154
Specifications
MODE
MIN
MAX
(1)
UNIT
20
ns
0.5P 2.5 (2)
ns
20
ns
0.5P 2.5 (3)
ns
ACLKR/X int
0
6
ns
ACLKR/X ext in
ACLKR/X ext out
2
22.2
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-53. Switching Characteristics Over Recommended Operating Conditions for McASP1
(1)
(continued)
NO.
14
PARAMETER
DESCRIPTION
td(ACLK-AXR)
Delay time, ACLKR/X transmit edge to AXR output
valid
MODE
MIN
MAX
UNIT
ACLKR/X int
0
6
ns
ACLKR/X ext in
ACLKR/X ext out
2
22.2
ns
(1) ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
(2) P = AHCLKX period in ns.
(3) R = ACLKR/X period in ns.
Table 5-54. Switching Characteristics Over Recommended Operating Conditions for McASP2
NO.
PARAMETER
DESCRIPTION
9
tc(AHCLKX)
Cycle time, AHCLKX
10
tw(AHCLKX)
Pulse duration, AHCLKX high or low
11
tc(ACLKRX)
Cycle time, ACLKR/X
12
tw(ACLKRX)
Pulse duration, ACLKR/X high or low
13
td(ACLK-AFSXR)
Delay time, ACLKR/X transmit edge to AFSX/R output
valid
14
td(ACLK-AXR)
Delay time, ACLKR/X transmit edge to AXR output
valid
MODE
MIN
(1)
MAX
UNIT
20
ns
0.5P 2.5 (2)
ns
20
ns
0.5P 2.5 (3)
ns
ACLKR/X int
0
6
ns
ACLKR/X ext in
ACLKR/X ext out
2
22.2
ns
ACLKR/X int
0
6
ns
ACLKR/X ext in
ACLKR/X ext out
2
22.2
ns
(1) ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
(2) P = AHCLKX period in ns.
(3) R = ACLKR/X period in ns.
Table 5-55. Switching Characteristics Over Recommended Operating Conditions for McASP3
NO.
PARAMETER
DESCRIPTION
9
tc(AHCLKX)
Cycle time, AHCLKX
10
tw(AHCLKX)
Pulse duration, AHCLKX high or low
11
tc(ACLKRX)
Cycle time, ACLKR/X
12
tw(ACLKRX)
Pulse duration, ACLKR/X high or low
13
td(ACLK-AFSXR)
Delay time, ACLKR/X transmit edge to AFSX/R output
valid
14
td(ACLK-AXR)
Delay time, ACLKR/X transmit edge to AXR output
valid
MODE
MIN
(1)
MAX
UNIT
20
ns
0.5P 2.5
ns
20
ns
0.5P 2.5
ns
ACLKR/X int
0
6
ns
ACLKR/X ext in
ACLKR/X ext out
2
23.1
ns
ACLKR/X int
0
6
ns
ACLKR/X ext in
ACLKR/X ext out
2
23.1
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
155
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(1) ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
(2) P = AHCLKX period in ns.
(3) R = ACLKR/X period in ns.
10
10
9
AHCLKX (Falling Edge Polarity)
AHCLKX (Rising Edge Polarity)
12
11
12
ACLKR/X (CLKRP = CLKXP = 1)(A)
ACLKR/X (CLKRP = CLKXP = 0)(B)
13
13
13
13
AFSR/X (Bit Width, 0 Bit Delay)
AFSR/X (Bit Width, 1 Bit Delay)
AFSR/X (Bit Width, 2 Bit Delay)
13
13
13
AFSR/X (Slot Width, 0 Bit Delay)
AFSR/X (Slot Width, 1 Bit Delay)
AFSR/X (Slot Width, 2 Bit Delay)
14
15
AXR[n] (Data Out/Transmit)
A0
A1
A30 A31 B0 B1
B30 B31 C0
C1 C2 C3
C31
SPRS91v_McASP_02
A.
B.
For CLKRP = CLKXP =
receiver is configured for
For CLKRP = CLKXP =
receiver is configured for
1, the McASP transmitter is configured for falling edge (to shift data out) and the McASP
rising edge (to shift data in).
0, the McASP transmitter is configured for rising edge (to shift data out) and the McASP
falling edge (to shift data in).
Figure 5-44. McASP Output Timing
156
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
NOTE
To configure the desired virtual mode the user must set MODESELECT bit and
DELAYMODE bitfield for each corresponding pad control register.
The pad control registers are presented Table 4-29 and described in Device TRM, Control
Module section.
CAUTION
The IO timings provided in this section are only valid if signals within a single
IOSET are used. The IOSETs are defined in Table 5-56.
In Table 5-56 are presented the specific groupings of signals (IOSET) for use with McASP1.
Table 5-56. McASP1 IOSETs
SIGNALS
IOSET1
IOSET2
BALL
MUX
mcasp1_aclkx
U17
mcasp1_fsx
W17
mcasp1_aclkr
AA17
1
IOSET3
BALL
MUX
BALL
MUX
1
U17
1
W17
1
U17
1
1
W17
1
mcasp1_fsr
U16
1
mcasp1_axr0
W16
1
W16
1
W16
1
mcasp1_axr1
V16
1
V16
1
V16
1
mcasp1_axr2
U15
1
mcasp1_axr3
V15
1
mcasp1_axr4
Y15
1
mcasp1_axr5
W15
1
mcasp1_axr6
AA15
1
mcasp1_axr7
AB15
1
mcasp1_axr8
AA14
1
AA14
1
U15
4
mcasp1_axr9
AB14
1
AB14
1
V15
4
mcasp1_axr10
U13
1
Y15
4
mcasp1_axr11
V13
1
W15
4
mcasp1_axr12
Y13
1
AA15
4
mcasp1_axr13
W13
1
AB15
4
mcasp1_axr14
U11
1
U7
4
mcasp1_axr15
V11
1
V7
4
5.9.6.12 DCAN and MCAN
5.9.6.12.1 DCAN
The device provides one DCAN interface for supporting distributed realtime control with a high level of
security.
The DCAN interface implement the following features:
• Supports CAN protocol version 2.0 part A, B
• Bit rates up to 1 MBit/s
• 64 message objects
• Individual identifier mask for each message object
• Programmable FIFO mode for message objects
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
157
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
•
•
•
•
•
www.ti.com
Programmable loop-back modes for self-test operation
Suspend mode for debug support
Automatic bus on after Bus-Off state by a programmable 32-bit timer
Message RAM single error correction and double error detection (SECDED) mechanism
Direct access to Message RAM during test mode
Support for two interrupt lines: Level 0 and Level 1, plus separate ECC interrupt line
Local power down and wakeup support
Automatic message RAM initialization
Support for DMA access
5.9.6.12.2 MCAN
The device supports one MCAN module connecting to the CAN network through external (for the device)
transceiver for connection to the physical layer. The MCAN module supports up to 5 Mbit/s data rate and
is compliant to ISO 11898-1:2015.
The MCAN module implements the following features:
• Conforms with ISO 11898-1:2015
• Full CAN FD support (up to 64 data bytes)
• AUTOSAR and SAE J1939 support
• Up to 32 dedicated Transmit Buffers
• Configurable Transmit FIFO, up to 32 elements
• Configurable Transmit Queue, up to 32 elements
• Configurable Transmit Event FIFO, up to 32 elements
• Up to 64 dedicated Receive Buffers
• Two configurable Receive FIFOs, up to 64 elements each
• Up to 128 filter elements
• Internal Loopback mode for self-test
• Maskable interrupts, two interrupt lines
• Two clock domains (CAN clock/Host clock)
• Parity/ECC support - Message RAM single error correction and double error detection (SECDED)
mechanism
• Local power-down and wakeup support
• Timestamp Counter
NOTE
For more information, see the Serial Communication Interfaces / DCAN and MCAN sections
of the Device TRM.
Table 5-57, Table 5-58 and Figure 5-45 present Timing and Switching characteristics for DCAN and
MCAN Interface.
Table 5-57. Timing Requirements for DCAN Receive(1)
NO.
1
158
PARAMETER
DESCRIPTION
f(baud)
Maximum programmable baud rate
tw(DCANRX)
Pulse duration, receive data bit (DCANx_RX)
Specifications
MIN
NOM
H - 15
MAX
UNIT
1
Mbps
H + 15
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) H = period of baud rate, 1/programmed baud rate.
(1)
Table 5-58. Switching Characteristics Over Recommended Operating Conditions for DCAN Transmit
NO.
2
PARAMETER
DESCRIPTION
f(baud)
Maximum programmable baud rate
tw(DCANTX)
Pulse duration, transmit data bit (DCANx_TX)
MIN
MAX
UNIT
1
Mbps
H - 15
H + 15
ns
(1) H = period of baud rate, 1/programmed baud rate.
1
DCANx_RX
2
DCANx_TX
SPRS91v_DCAN_01
Figure 5-45. DCAN and MCAN Timings
CAUTION
The IO timings provided in this section are only valid if signals within a single
IOSET are used. The IOSETs are defined in Table 5-59.
In Table 5-59 are presented the specific groupings of signals (IOSET) for use with DCAN and MCAN.
Table 5-59. DCAN and MCAN IOSETs
SIGNALS
IOSET1
BALL
IOSET2
MUX
BALL
IOSET3
MUX
IOSET4
BALL
MUX
BALL
MUX
DCAN1
dcan1_tx
N5
0
D14
12
F14
12
dcan1_rx
N6
0
D15
12
C14
12
MCAN
mcan_tx
W7
0
F13
12
F15
12
mcan_rx
W6
0
E14
12
F16
12
5.9.6.13 GMAC_SW
The two-port gigabit ethernet switch subsystem (GMAC_SW) provides ethernet packet communication
and can be configured as an ethernet switch. It provides Reduced Gigabit Media Independent Interface
(RGMII), and the Management Data Input/Output (MDIO) for physical layer device (PHY) management.
NOTE
For more information, see the Gigabit Ethernet Switch (GMAC_SW) section of the Device
TRM.
NOTE
The Gigabit, Reduced and Media Independent Interface n (n = 0 to 1) are also referred to as
RGMIIn
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
159
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
5.9.6.13.1 GMAC MDIO Interface Timings
Table 5-60, Table 5-61 and Figure 5-46 present Timing Requirements for MDIO.
Table 5-60. Timing Requirements for MDIO Input
No
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
1
tc(MDC)
Cycle time, MDC
400
ns
2
tw(MDCH)
Pulse Duration, MDC High
160
ns
3
tw(MDCL)
Pulse Duration, MDC Low
160
ns
4
tsu(MDIO-MDC)
Setup time, MDIO valid before MDC High
90
ns
5
th(MDIO_MDC)
Hold time, MDIO valid from MDC High
0
ns
Table 5-61. Switching Characteristics Over Recommended Operating Conditions for MDIO Output
No
PARAMETER
DESCRIPTION
6
tt(MDC)
Transition time, MDC
MIN
7
td(MDC-MDIO)
Delay time, MDC High to MDIO valid
10
MAX
UNIT
5
ns
390
ns
1
MDIO2
MDIO3
MDCLK
MDIO6
MDIO6
MDIO4
MDIO5
MDIO
(input)
MDIO7
MDIO
(output)
SPRS91v_GMAC_07
Figure 5-46. GMAC MDIO diagrams
160
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
5.9.6.13.2 GMAC RGMII Timings
Table 5-62, Table 5-63 and Figure 5-47 present timing requirements for receive RGMIIn operation.
Table 5-62. Timing Requirements for rgmiin_rxc - RGMIIn Operation
NO.
1
2
PARAMETER
DESCRIPTION
SPEED
MIN
MAX
UNIT
tc(RXC)
Cycle time, rgmiin_rxc
10 Mbps
360
440
ns
tw(RXCH)
3
Pulse duration, rgmiin_rxc high
tw(RXCL)
4
Pulse duration, rgmiin_rxc low
tt(RXC)
Transition time, rgmiin_rxc
100 Mbps
36
44
ns
1000 Mbps
7.2
8.8
ns
10 Mbps
160
240
ns
100 Mbps
16
24
ns
1000 Mbps
3.6
4.4
ns
10 Mbps
160
240
ns
100 Mbps
16
24
ns
1000 Mbps
3.6
4.4
ns
10 Mbps
0.75
ns
100 Mbps
0.75
ns
1000 Mbps
0.75
ns
Table 5-63. Timing Requirements for GMAC RGMIIn Input Receive for 10/100/1000 Mbps
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
5
tsu(RXD-RXCH)
Setup time, receive selected signals valid before rgmiin_rxc high/low
1.15
ns
6
th(RXCH-RXD)
Hold time, receive selected signals valid after rgmiin_rxc high/low
1.15
ns
(1) For RGMII, receive selected signals include: rgmiin_rxd[3:0] and rgmiin_rxctl.
(2) RGMII0 requires that the 4 data pins rgmii0_rxd[3:0] and rgmii0_rxctl have their board propagation delays matched within 50pS of
rgmii0_rxc.
(3) RGMII1 requires that the 4 data pins rgmii1_rxd[3:0] and rgmii1_rxctl have their board propagation delays matched within 50pS of
rgmii1_rxc.
1
4
2
rgmiin_rxc
4
3
(A)
5
1st Half-byte
2nd Half-byte
rgmiin_rxd[3:0]
rgmiin_rxctl
(B)
(B)
RGRXD[3:0]
RGRXD[7:4]
RXDV
RXERR
6
SPRS91v_GMAC_08
A.
B.
rgmiin_rxc must be externally delayed relative to the data and control pins.
Data and control information is received using both edges of the clocks. rgmiin_rxd[3:0] carries data bits 3-0 on the
rising edge of rgmiin_rxc and data bits 7-4 on the falling edge ofrgmiin_rxc. Similarly, rgmiin_rxctl carries RXDV on
rising edge of rgmiin_rxc and RXERR on falling edge of rgmiin_rxc.
Figure 5-47. GMAC Receive Interface Timing, RGMIIn operation
Table 5-64, Table 5-65 and Figure 5-48 present switching characteristics for rgmiin_txctl - RGMIIn
Operation for 10/100/1000 Mbit/s
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
161
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-64. Switching Characteristics Over Recommended Operating Conditions for rgmiin_txctl - RGMIIn
Operation for 10/100/1000 Mbit/s
NO.
1
2
3
4
PARAMETER
DESCRIPTION
tc(TXC)
Cycle time, rgmiin_txc
tw(TXCH)
tw(TXCL)
tt(TXC)
Pulse duration, rgmiin_txc high
Pulse duration, rgmiin_txc low
Transition time, rgmiin_txc
SPEED
MIN
MAX
UNIT
10 Mbps
360
440
ns
100 Mbps
36
44
ns
1000 Mbps
7.2
8.8
ns
10 Mbps
160
240
ns
100 Mbps
16
24
ns
1000 Mbps
3.6
4.4
ns
10 Mbps
160
240
ns
100 Mbps
16
24
ns
1000 Mbps
3.6
4.4
ns
10 Mbps
0.75
ns
100 Mbps
0.75
ns
1000 Mbps
0.75
ns
Table 5-65. Switching Characteristics for GMAC RGMIIn Output Transmit for 10/100/1000 Mbps
NO.
5
PARAMETER
DESCRIPTION
tosu(TXD-TXC)
Output Setup time, transmit selected signals
valid to rgmiin_txc high/low
MODE
MIN
RGMII0, Internal Delay
Enabled, 1000 Mbps
RGMII0, Internal Delay
Enabled, 10/100 Mbps
6
toh(TXC-TXD)
Output Hold time, transmit selected signals
valid after rgmiin_txc high/low
1.2
1.2
162
Specifications
ns
ns
1.2
RGMII1, Internal Delay
Enabled, 1000 Mbps
RGMII1, Internal Delay
Enabled, 10/100 Mbps
ns
ns
RGMII0, Internal Delay
Enabled, 1000 Mbps
RGMII0, Internal Delay
Enabled, 10/100 Mbps
UNIT
ns
RGMII1, Internal Delay
Enabled, 1000 Mbps
RGMII1, Internal Delay
Enabled, 10/100 Mbps
MAX
(1)
ns
ns
1.2
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) For RGMII, transmit selected signals include: rgmiin_txd[3:0] and rgmiin_txctl.
(2) RGMII0 1000Mbps operation is not supported.
(3) RGMII1 1000Mbps operation is not supported.
1
4
2
3
4
(A)
rgmiin_txc
[internal delay enabled]
5
(B)
1st Half-byte
rgmiin_txd[3:0]
2nd Half-byte
6
(B)
rgmiin_txctl
TXEN
TXERR
SPRS91v_GMAC_09
A.
B.
TXC is delayed internally before being driven to the rgmiin_txc pin. This internal delay is always enabled.
Data and control information is transmitted using both edges of the clocks. rgmiin_txd[3:0] carries data bits 3-0 on the
rising edge of rgmiin_txc and data bits 7-4 on the falling edge of rgmiin_txc. Similarly, rgmiin_txctl carries TXEN on
rising edge of rgmiin_txc and TXERR of falling edge of rgmiin_txc.
Figure 5-48. GMAC Transmit Interface Timing RGMIIn operation
5.9.6.14 SDIO Controller
MMC interface is compliant with the SDIO3.0 standard v1.0, SD Part E1 and for generic SDIO devices, it
supports the following applications:
• MMC 4-bit data, SD Default speed, SDR
• MMC 4-bit data, SD High speed, SDR
• MMC 4-bit data, UHS-I SDR12 (SD Standard v3.01), 4-bit data, SDR, half cycle
• MMC 4-bit data, UHS-I SDR25 (SD Standard v3.01), 4-bit data, SDR, half cycle
NOTE
For more information, see the SDIO Controller chapter of the Device TRM.
5.9.6.14.1 MMC, SD Default Speed
Figure 5-49, Figure 5-50, Table 5-66, and Table 5-67 present Timing requirements and Switching
characteristics for MMC - SD and SDIO Default speed in receiver and transmiter mode.
Table 5-66. Timing Requirements for MMC - Default Speed Mode
NO.
PARAMETER
DESCRIPTION
MIN
DS5
tsu(cmdV-clkH)
Setup time, mmc_cmd valid before mmc_clk rising clock edge
5.11
MAX
UNIT
ns
DS6
th(clkH-cmdV)
Hold time, mmc_cmd valid after mmc_clk rising clock edge
20.46
ns
DS7
tsu(dV-clkH)
Setup time, mmc_dat[i:0] valid before mmc_clk rising clock edge
5.11
ns
DS8
th(clkH-dV)
Hold time, mmc_dat[i:0] valid after mmc_clk rising clock edge
20.46
ns
(1) i in [i:0] = 3
Table 5-67. Switching Characteristics for MMC - SD/SDIO Default Speed Mode
NO.
PARAMETER
DESCRIPTION
DS0
fop(clk)
Operating frequency, mmc_clk
DS1
tw(clkH)
Pulse duration, mmc_clk high
MIN
MAX
UNIT
24
MHz
0.5*P0.270
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
ns
Specifications
163
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-67. Switching Characteristics for MMC - SD/SDIO Default Speed Mode (continued)
NO.
PARAMETER
DESCRIPTION
DS2
tw(clkL)
Pulse duration, mmc_clk low
0.5*P0.270
MIN
MAX
UNIT
DS3
td(clkL-cmdV)
Delay time, mmc_clk falling clock edge to mmc_cmd transition
-14.93
14.93
ns
DS4
td(clkL-dV)
Delay time, mmc_clk falling clock edge to mmc_dat[i:0] transition
-14.93
14.93
ns
ns
(1) P = output mmc_clk period in ns
(2) i in [i:0] = 3
DS2
DS1
DS0
mmc_clk
DS6
DS5
mmc_cmd
DS8
DS7
mmc_dat[3:0]
SPRS91v_MMC_01
Figure 5-49. MMC/SD/SDIOj in - Default Speed - Receiver Mode
DS2
DS1
DS0
mmc_clk
DS3
mmc_cmd
DS4
mmc_dat[3:0]
SPRS91v_MMC_02
Figure 5-50. MMC/SD/SDIOj in - Default Speed - Transmiter Mode
5.9.6.14.2 MMC, SD High Speed
Figure 5-51, Figure 5-52, Table 5-68, and Table 5-69 present Timing requirements and Switching
characteristics for MMC - SD and SDIO High speed in receiver and transmiter mode.
Table 5-68. Timing Requirements for MMC - SD/SDIO High Speed Mode
NO.
PARAMETER
DESCRIPTION
MIN
HS3
tsu(cmdV-clkH)
Setup time, mmc_cmd valid before mmc_clk rising clock edge
5.3
ns
HS4
th(clkH-cmdV)
Hold time, mmc_cmd valid after mmc_clk rising clock edge
2.6
ns
HS7
tsu(dV-clkH)
Setup time, mmc_dat[i:0] valid before mmc_clk rising clock edge
5.3
ns
HS8
th(clkH-dV)
Hold time, mmc_dat[i:0] valid after mmc_clk rising clock edge
2.6
ns
164
Specifications
MAX
UNIT
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) i in [i:0] = 3
Table 5-69. Switching Characteristics for MMC - SD/SDIO High Speed Mode
NO.
PARAMETER
DESCRIPTION
HS1
fop(clk)
Operating frequency, mmc_clk
MIN
MAX
UNIT
48
MHz
HS2H
tw(clkH)
Pulse duration, mmc_clk high
0.5*P0.270
ns
HS2L
tw(clkL)
Pulse duration, mmc_clk low
0.5*P0.270
ns
HS5
td(clkL-cmdV)
Delay time, mmc_clk falling clock edge to mmc_cmd transition
-7.6
3.6
ns
HS6
td(clkL-dV)
Delay time, mmc_clk falling clock edge to mmc_dat[i:0] transition
-7.6
3.6
ns
(1) P = output mmc_clk period in ns
(2) i in [i:0] = 3
HS1
HS2H
HS2L
mmc_clk
HS3
HS4
mmc_cmd
HS7
HS8
mmc_dat[3:0]
SPRS91v_MMC_03
Figure 5-51. MMC/SD/SDIOj in - High Speed - Receiver Mode
HS1
HS2H
HS2L
mmc_clk
HS5
HS5
mmc_cmd
HS6
HS6
mmc_dat[3:0]
SPRS91v_MMC_04
Figure 5-52. MMC/SD/SDIOj in - High Speed - Transmiter Mode
5.9.6.14.3 MMC, SD and SDIO SDR12 Mode
Figure 5-53, Figure 5-54, Table 5-70, and Table 5-71 present Timing requirements and Switching
characteristics for MMC - SD and SDIO SDR12 in receiver and transmiter mode.
Table 5-70. Timing Requirements for MMC - SDR12 Mode
PARAMETER
DESCRIPTION
SDR125
NO.
tsu(cmdV-clkH)
Setup time, mmc_cmd valid before mmc_clk rising clock edge
SDR126
th(clkH-cmdV)
Hold time, mmc_cmd valid after mmc_clk rising clock edge
SDR127
tsu(dV-clkH)
Setup time, mmc_dat[i:0] valid before mmc_clk rising clock edge
SDR128
th(clkH-dV)
Hold time, mmc_dat[i:0] valid after mmc_clk rising clock edge
MIN
MAX
UNIT
25.99
ns
1.6
ns
25.99
ns
1.6
ns
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
165
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(1) i in [i:0] = 3
Table 5-71. Switching Characteristics for MMC - SDR12 Mode
PARAMETER
DESCRIPTION
SDR120
NO.
fop(clk)
Operating frequency, mmc_clk
MIN
MAX
UNIT
24
MHz
SDR121
tw(clkH)
Pulse duration, mmc_clk high
0.5*P0.270
ns
SDR122
tw(clkL)
Pulse duration, mmc_clk low
0.5*P0.270
ns
SDR123
td(clkL-cmdV)
Delay time, mmc_clk falling clock edge to mmc_cmd transition
-19.13
16.93
ns
SDR124
td(clkL-dV)
Delay time, mmc_clk falling clock edge to mmc_dat[i:0] transition
-19.13
16.93
ns
(1) P = output mmc_clk period in ns
(2) i in [i:0] = 3
SDR122
SDR121
SDR120
mmc_clk
SDR126
SDR125
mmc_cmd
SDR128
SDR127
mmc_dat[3:0]
SPRS91v_MMC_05
Figure 5-53. MMC/SD/SDIOj in - SDR12 - Receiver Mode
SDR122
SDR121
SDR120
mmc_clk
SDR123
mmc_cmd
SDR124
mmc_dat[3:0]
SPRS91v_MMC_06
Figure 5-54. MMC/SD/SDIOj in - SDR12 - Transmiter Mode
5.9.6.14.4 MMC, SD SDR25 Mode
Figure 5-55, Figure 5-56, Table 5-72, and Table 5-73 present Timing requirements and Switching
characteristics for MMC - SD and SDIO SDR25 in receiver and transmiter mode.
Table 5-72. Timing Requirements for MMC - SDR25 Mode (1)
PARAMETER
DESCRIPTION
MIN
SDR253
NO.
tsu(cmdV-clkH)
Setup time, mmc_cmd valid before mmc_clk rising clock edge
5.3
ns
SDR254
th(clkH-cmdV)
Hold time, mmc_cmd valid after mmc_clk rising clock edge
1.6
ns
SDR257
tsu(dV-clkH)
Setup time, mmc_dat[i:0] valid before mmc_clk rising clock edge
5.3
ns
SDR258
th(clkH-dV)
Hold time, mmc_dat[i:0] valid after mmc_clk rising clock edge
1.6
ns
166
Specifications
MAX
UNIT
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) i in [i:0] = 3
Table 5-73. Switching Characteristics for MMC - SDR25 Mode (2)
PARAMETER
DESCRIPTION
SDR251
NO.
fop(clk)
Operating frequency, mmc_clk
MIN
MAX
UNIT
48
MHz
SDR252
H
tw(clkH)
Pulse duration, mmc_clk high
0.5*P0.270
ns
SDR252L tw(clkL)
Pulse duration, mmc_clk low
0.5*P0.270
ns
SDR255
td(clkL-cmdV)
Delay time, mmc_clk falling clock edge to mmc_cmd transition
-8.8
6.6
ns
SDR256
td(clkL-dV)
Delay time, mmc_clk falling clock edge to mmc_dat[i:0] transition
-8.8
6.6
ns
(1) P = output mmc_clk period in ns
(2) i in [i:0] = 3
SDR251
SDR252L
SDR252H
mmc_clk
SDR253
SDR254
mmc_cmd
SDR257
SDR258
mmc_dat[3:0]
SPRS91v_MMC_07
Figure 5-55. MMC/SD/SDIOj in - SDR25 - Receiver Mode
SDR251
SDR252H
SDR252L
mmc_clk
SDR255
SDR255
mmc_cmd
SDR256
SDR256
mmc_dat[3:0]
SPRS91v_MMC_08
Figure 5-56. MMC/SD/SDIOj in - SDR25 - Transmiter Mode
CAUTION
The IO timings provided in this section are only valid if signals within a single
IOSET are used. The IOSETs are defined in Table 5-74.
In Table 5-74 are presented the specific groupings of signals (IOSET) for use with MMC.
Table 5-74. MMC IOSETs
SIGNALS
IOSET1
IOSET2
IOSET3
BALL
MUX
BALL
MUX
BALL
MUX
mmc_clk
C16
5
W16
5
B18
5
mmc_cmd
C17
5
V16
5
C18
5
mmc_dat0
E16
5
U15
5
A19
5
mmc_dat1
D16
5
V15
5
B20
5
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
167
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 5-74. MMC IOSETs (continued)
SIGNALS
IOSET1
IOSET2
BALL
MUX
mmc_dat2
E17
mmc_dat3
F17
IOSET3
BALL
MUX
BALL
MUX
5
Y15
5
C20
5
5
W15
5
A20
5
5.9.6.15 GPIO
The general-purpose interface combines four general-purpose input/output (GPIO) banks. Each GPIO
module provides up to 32 dedicated general-purpose pins with input and output capabilities; thus, the
general-purpose interface supports up to 126 pins.
These pins can be configured for the following applications:
• Data input (capture)/output (drive)
• Keyboard interface with a debounce cell
• Interrupt generation in active mode upon the detection of external events. Detected events are
processed by two parallel independent interrupt-generation submodules to support biprocessor
operations
• Wake-up request generation in idle mode upon the detection of external events
NOTE
For more information, see the General-Purpose Interface chapter of the Device TRM.
NOTE
The general-purpose input/output i (i = 1 to 4) bank is also referred to as GPIOi.
CAUTION
The IO timings provided in this section are only valid if signals within a single
IOSET are used. The IOSETs are defined in Table 5-75.
In Table 5-75 are presented the specific groupings of signals (IOSET) for use with GPIO.
Table 5-75. GPIO2/3/4 IOSETs
SIGNALS
IOSET1
BALL
IOSET2
MUX
BALL
MUX
gpio2_11
J17
14
gpio2_12
K22
14
gpio2_13
K21
14
gpio2_14
K18
14
gpio2_20
AB17
14
GPIO2
168
gpio2_23
AA17
14
AA17
14
gpio2_24
U16
14
U16
14
gpio2_27
U15
14
gpio2_28
V15
14
gpio2_29
Y15
14
gpio2_30
W15
14
gpio2_31
AA15
14
Specifications
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-75. GPIO2/3/4 IOSETs (continued)
SIGNALS
IOSET1
BALL
IOSET2
MUX
BALL
MUX
GPIO3
gpio3_0
AB15
14
gpio3_9
U9
14
U9
14
gpio3_10
W11
14
W11
14
gpio3_11
V9
14
V9
14
gpio3_12
W9
14
W9
14
gpio3_13
U8
14
U8
14
gpio3_14
W8
14
W8
14
gpio3_15
U7
14
gpio3_16
V7
14
gpio4_4
R5
14
gpio4_6
N4
14
gpio4_7
R7
14
gpio4_8
L2
14
gpio4_9
N5
14
gpio4_10
N6
14
GPIO4
5.9.6.16 ATL
The device contains one ATL module that can be used for asynchronous sample rate conversion of audio.
The ATL calculates the error between two time bases, such as audio syncs, and optionally generates an
averaged clock using cycle stealing via software.
NOTE
For more detailed information on the ATL peripheral, see the Audio Tracking Logic (ATL)
chapter of the device TRM.
5.9.6.16.1 ATL Electrical Data/Timing
Table 5-76 and Figure 5-57 present switching characteristics for ATL
Table 5-76. Switching Characteristics Over Recommended Operating Conditions for ATL_CLKOUTx
NO.
PARAMETER
DESCRIPTION
1
tc(ATLCLKOUT)
Cycle time, ATL_CLKOUTx
2
tw(ATLCLKOUTL)
Pulse Duration, ATL_CLKOUTx low
3
tw(ATLCLKOUTH)
MIN
Pulse Duration, ATL_CLKOUTx high
MAX
UNIT
20
ns
0.45*P - M(1)
ns
(1)
ns
0.45*P - M
(1) P = ATL_CLKOUTx period.
M = internal ATL PCLK period.
1
2
atl_clkx
3
ATL_01
Figure 5-57. ATL_CLKOUTx Timing
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
169
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
5.9.7
www.ti.com
Emulation and Debug Subsystem
The device includes the following Test interfaces:
• IEEE 1149.1 Standard-Test-Access Port (JTAG)
• Trace Port Interface Unit (TPIU)
5.9.7.1
JTAG Electrical Data/Timing
Table 5-77, Table 5-78 and Figure 5-58 assume testing over the recommended operating conditions and
electrical characteristic conditions below.
Table 5-77. Timing Requirements for IEEE 1149.1 JTAG
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
1
tc(TCK)
Cycle time, TCK
62.29
ns
1a
tw(TCKH)
Pulse duration, TCK high (40% of tc)
24.92
ns
1b
tw(TCKL)
Pulse duration, TCK low(40% of tc)
24.92
ns
3
tsu(TDI-TCK)
Input setup time, TDI valid to TCK high
6.23
ns
tsu(TMS-TCK)
Input setup time, TMS valid to TCK high
6.23
ns
th(TCK-TDI)
Input hold time, TDI valid from TCK high
31.15
ns
th(TCK-TMS)
Input hold time, TMS valid from TCK high
31.15
ns
4
Table 5-78. Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
NO.
2
PARAMETER
DESCRIPTION
td(TCKL-TDOV)
Delay time, TCK low to TDO valid
MIN
MAX
UNIT
0
30.5
ns
1
1a
1b
TCK
2
TDO
3
4
TDI/TMS
SPRS91v_JTAG_01
Figure 5-58. JTAG Timing
Table 5-79, Table 5-80 and Figure 5-59 assume testing over the recommended operating conditions and
electrical characteristic conditions below.
Table 5-79. Timing Requirements for IEEE 1149.1 JTAG With RTCK
NO.
PARAMETER
DESCRIPTION
MIN
1
tc(TCK)
Cycle time, TCK
62.29
ns
1a
tw(TCKH)
Pulse duration, TCK high (40% of tc)
24.92
ns
1b
tw(TCKL)
Pulse duration, TCK low(40% of tc)
24.92
ns
3
tsu(TDI-TCK)
Input setup time, TDI valid to TCK high
6.23
ns
tsu(TMS-TCK)
Input setup time, TMS valid to TCK high
6.23
ns
th(TCK-TDI)
Input hold time, TDI valid from TCK high
31.15
ns
th(TCK-TMS)
Input hold time, TMS valid from TCK high
31.15
ns
4
170
Specifications
MAX
UNIT
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 5-80. Switching Characteristics Over Recommended Operating Conditions for
IEEE 1149.1 JTAG With RTCK
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
5
td(TCK-RTCK)
Delay time, TCK to RTCK with no selected subpaths (i.e. ICEPick is
the only tap selected - when the ARM is in the scan chain, the delay
time is a function of the ARM functional clock).
0
27
ns
6
tc(RTCK)
Cycle time, RTCK
62.29
ns
7
tw(RTCKH)
Pulse duration, RTCK high (40% of tc)
24.92
ns
8
tw(RTCKL)
Pulse duration, RTCK low (40% of tc)
24.92
ns
5
TCK
6
7
8
RTCK
SPRS91v_JTAG_02
Figure 5-59. JTAG With RTCK Timing
5.9.7.2
Trace Port Interface Unit (TPIU)
5.9.7.2.1 TPIU PLL DDR Mode
Table 5-81 and Figure 5-60 assume testing over the recommended operating conditions and electrical
characteristic conditions below.
Table 5-81. Switching Characteristics for TPIU
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
TPIU1
tc(clk)
Cycle time, TRACECLK period
5.56
TPIU4
td(clk-ctlV)
Skew time, TRACECLK transition to TRACECTL transition
-1.61
1.98
ns
TPIU5
td(clk-dataV)
Skew time, TRACECLK transition to TRACEDATA[17:0] transition
-1.61
1.98
ns
ns
(1) P = TRACECLK period in ns
(2) The listed pulse duration is a typical value
TPIU1
TPIU2
TPIU3
TRACECLK
TPIU4
TPIU4
TRACECTL
TPIU5
TPIU5
TRACEDATA[X:0]
SPRS91v_TPIU_01
(1)
Figure 5-60. TPIU—PLL DDR Transmit Mode
(1) In d[X:0], X is equal to 15 or 17.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Specifications
171
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
6 Detailed Description
6.1
Description
The DRA78x processor is offered in a 367-ball, 15×15-mm, 0.65-mm ball pitch (0.8mm spacing rules can
be used on signals) with Via Channel™ Array (VCA) technology, ball grid array (S-PBGA) package.
The architecture is designed to deliver high-performance concurrencies for automotive co-processor,
hybrid radio and amplifier applications in a cost-effective solution, providing full scalability from the
DRA75x ("Jacinto 6 EP" and "Jacinto 6 Ex"), DRA74x "Jacinto 6", DRA72x "Jacinto 6 Eco", and DRA71x
"Jacinto 6 Entry" family of infotainment processors, including voice, HMI, multimedia and smartphone
projection mode capabilities.
Additionally, TI provides a complete set of development tools for the ARM, and DSP, including C
compilers and a debugging interface for visibility into source code execution.
The DRA78x Jacinto 6 RSP (Radio Sound Processor) device family is qualified according to the AECQ100 standard.
The device features a simplified power supply rail mapping which enables lower cost PMIC solutions.
6.2
Functional Block Diagram
Figure 6-1 is functional block diagram for the device.
172
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
L1P 32KiB
2x Cortex-M4
16KiB ROM
L2
256KiB
Cache
C66x
Display
Subsystem
IPU with ECC
DSP Subsystem x2
DVOUT
L1D 32KiB
Vision
Accelerator
EDMA 2TC
SD-DAC
EVE 16MAC
Video Front End
OSD
Resizing
CSC
EDMA 2TC
Video Input Port
up to 512KiB RAM
with ECC
Radio Accelerator
Interconnect
HD ATL
DRA78x
Serial Interfaces
JTAG
Connectivity
I2C x2
GEMAC Switch
System
EDMA
Timer x8
McSPI x4
McASP x3
GPIO x4
Mailbox/Spinlock
QSPI x1
DCAN (with ECC)
PWMSS x1
10-bit ADC
SDIO x1
MCAN (CAN-FD)
with ECC
MMU x1
Control Module
PRCM
RTI x5
UART x3
PLLs
OSC
Memory Controllers
GPMC 8b/16b
with up to 16b ECC
DDR2/DDR3/DDR3L
32b with 8b ECC
func_sprs968-001
Copyright © 2016, Texas Instruments Incorporated
Figure 6-1. DRA78x Block Diagram
6.3
DSP Subsystem
The device includes two identical instances (DSP1 and DSP2) of a digital signal processor (DSP)
subsystem, based on the TI's standard TMS320C66x™ DSP CorePac core.
The TMS320C66x DSP core enhances the TMS320C674x™ core, which merges the C674x™ floating
point and the C64x+™ fixed-point instruction set architectures. The C66x DSP is object-code compatible
with the C64x+/C674x DSPs.
For more information on the TMS320C66x core CPU, see the TMS320C66x DSP CPU and Instruction Set
Reference Guide, (SPRUGH7).
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
173
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Each of the two DSP subsystems integrated in the device includes the following components:
• A TMS320C66x™ CorePac DSP core that encompasses:
– L1 program-dedicated (L1P) cacheable memory
– L1 data-dedicated (L1D) cacheable memory
– L2 (program and data) cacheable memory
– Extended Memory Controller (XMC)
– External Memory Controller (EMC)
– DSP CorePac located interrupt controller (INTC)
– DSP CorePac located power-down controller (PDC)
• Dedicated enhanced data memory access engine - EDMA, to transfer data from/to memories and
peripherals external to the DSP subsystem and to local DSP memory (most commonly L2 SRAM). The
external DMA requests are passed through DSP system level (SYS) wakeup logic, and collected from
the DSP1/DSP2 dedicated outputs of the device DMA Events Crossbar for each of the two
subsystems.
• A level 2 (L2) interconnect network (DSP NoC) to allow connectivity between different modules of the
subsystem or the remainder of the device via the device L3_MAIN interconnect.
• Two memory management units (on EDMA L2 interconnect and DSP MDMA paths) for accessing the
device L3_MAIN interconnect address space.
• Dedicated system control logic (DSP_SYSTEM) responsible for power management, clock generation,
and connection to the device power, reset, and clock management (PRCM) module
The TMS320C66x Instruction Set Architecture (ISA) is the latest for the C6000 family. As with its
predecessors (C64x, C64x+ and C674x), the C66x is an advanced VLIW architecture with 8 functional
units (two multiplier units and six arithmetic logic units) that operate in parallel. The C66x CPU has a total
of 64 general-purpose 32-bit registers.
Some features of the DSP C6000 family devices are:
• Advanced VLIW CPU with eight functional units (two multipliers and six ALUs) which:
– Executes up to eight instructions per cycle for up to ten times the performance of typical DSPs
– Allows designers to develop highly effective RISC-like code for fast development time
• Instruction packing:
– Gives code size equivalence for eight instructions executed serially or in parallel
– Reduces code size, program fetches, and power consumption
• Conditional execution of most instructions:
– Reduces costly branching
– Increases parallelism for higher sustained performance
• Efficient code execution on independent functional units:
– Industry's most efficient C compiler on DSP benchmark suite
– Industry's first assembly optimizer for fast development and improved parallelization
• 8-/16-/32-bit/64-bit data support, providing efficient memory support for a variety of applications.
• 40-bit arithmetic options which add extra precision for vocoders and other computationally intensive
applications.
• Saturation and normalization to provide support for key arithmetic operations.
• Field manipulation and instruction extract, set, clear, and bit counting support common operation found
in control and data manipulation applications.
The C66x CPU has the following additional features:
• Each multiplier can perform two 16 × 16-bit or four 8 × 8 bit multiplies every clock cycle.
• Quad 8-bit and dual 16-bit instruction set extensions with data flow support.
• Support for non-aligned 32-bit (word) and 64-bit (double word) memory accesses.
174
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Special communication-specific instructions have been added to address common operations in errorcorrecting codes.
Bit count and rotate hardware extends support for bit-level algorithms.
Compact instructions: Common instructions (AND, ADD, LD, MPY) have 16-bit versions to reduce
code size.
Protected mode operation: A two-level system of privileged program execution to support highercapability operating systems and system features such as memory protection.
Exceptions support for error detection and program redirection to provide robust code execution
Hardware support for modulo loop operation to reduce code size and allow interrupts during fullypipelined code
Each multiplier can perform 32 × 32 bit multiplies
Additional instructions to support complex multiplies allowing up to eight 16-bit multiply/add/subtracts
per clock cycle
The TMS320C66x has the following key improvements to the ISA:
• 4x Multiply Accumulate improvement for both fixed and floating point
• Improvement of the floating point arithmetic
• Enhancement of the vector processing capability for fixed and floating point
• Addition of domain-specific instructions for complex arithmetic and matrix operations
On the C66x ISA, the vector processing capability is improved by extending the width of the SIMD
instructions. The C674x DSP supports 2-way SIMD operations for 16-bit data and 4-way SIMD
operations for 8-bit data. C66x enhances this capabilities with the addition of SIMD instructions for 32-bit
data allowing operation on 128-bit vectors. For example the QMPY32 instruction is able to perform the
element to element multiplication between two vectors of four 32-bit data each.
C66x ISA includes a set of specific instructions to handle complex arithmetic and matrix operations.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
175
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
176
www.ti.com
TMS320C66x DSP CorePac memory components:
– A 32-KiB L1 program memory (L1P) configurable as cache and/or SRAM:
• When configured as a cache, the L1P is a 1-way set-associative cache with a 32-byte cache
line
• The DSP CorePac L1P memory controller provides bandwidth management, memory
protection, and power-down functions
• The L1P is capable of cache block and global coherence operations
• The L1P controller has an Error Detection (ED) mechanism, including necessary SRAM
• The L1P memory can be fully configured as a cache or SRAM
• Page size for L1P memory is 2KB
– A 32-KiB L1 data memory (L1D) configurable as cache and / or SRAM:
• When configured as a cache, the L1D is a 2-way set-associative cache with a 64-byte cache
line
• The DSP CorePac L1D memory controller provides bandwidth management, memory
protection, and power-down functions
• The L1D memory can be fully configured as a cache or SRAM
• No support for error correction or detection
• Page size for L1D memory is 2KB
– A 288-KiB (program and data) L2 memory, only part of which is cacheable:
• When configured as a cache, the L2 memory is a 4-way set associative cache with a 128-byte
cache line
• Only 256 KiB of L2 memory can be configured as cache or SRAM
• 32 KiB of the L2 memory is always mapped as SRAM
• The L2 memory controller has an Error Correction Code (ECC) and ED mechanism, including
necessary SRAM
• The L2 memory controller supports hardware prefetching and also provides bandwidth
management, memory protection, and power-down functions.
• Page size for L2 memory is 16KB
The External Memory Controller (EMC) is a bridge from the C66x CorePac to the rest of the DSP
subsystem and device. It has :
– a 32-bit configuration port (CFG) providing access to local subsystem resources (like DSP_EDMA,
DSP_SYSTEM, and so forth) or to L3_MAIN resources accessible via the CFG address range.
– a 128-bit slave-DMA port (SDMA) which provides accesses of system masters outside the DSP
subsystem to resources inside the DSP subsystem or C66x DSP CorePac memories, i.e. when the
DSP subsystem is the slave in a transaction.
The Extended Memory Controller (XMC) processes requests from the L2 Cache Controller (which
are a result of CPU instruction fetches, load/store commands, cache operations) to device resources
via the C66x DSP CorePac 128-bit master DMA (MDMA) port:
– Memory protection for addresses outside C66x DSP CorePac generated over device L3_MAIN on
the MDMA port
– Prefetch, multi-in-flight requests
A DSP local Interrupt Controller (INTC) in the DSP C66x CorePac, interfaces the system events to
the DSP C66x core CPU interrupt and exceptions inputs. The DSP subsystem C66x CorePac interrupt
controller supports up to 128 system events of which 64 interrupts are external to DSP subsystems,
collected from the DSP1/DSP2 dedicated outputs of the device Interrupt Crossbar.
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Local Enhanced Direct Memory Access (EDMA) controller features:
– Channel controller (CC) : 64-channel, 128 PaRAM, 2 Queues
– 2 x Third-party Transfer Controllers (TPTC0 and TPTC1):
• Each TC has a 128-bit read port and a 128-bit write port
• 2KiB FIFOs on each TPTC
– 1-dimensional/2-dimensional (1D/2D) addressing
– Chaining capability
DSP subsystem integrated MMUs:
– Two MMUs are integrated:
• The MMU0 is located between DSP MDMA master port and the device L3_MAIN interconnect
and can be optionally bypassed
• The MMU1 is located between the EDMA master port and the device L3_MAIN interconnect
A DSP local Power-Down Controller (PDC) is responsible to power-down various parts of the DSP
C66x CorePac, or the entire DSP C66x CorePac.
The DSP subsystem System Control logic provides:
– Slave idle and master standby protocols with device PRCM for powerdown
– OCP Disconnect handshake for init and target busses
– Asynchronous reset
– Power-down modes:
• "Clockstop" mode featuring wake-up on interrupt event. The DMA event wake-up is managed in
software.
The device DSP subsystem is supplied by a PRCM DPLL, but each DSP1/2 has integrated its own
PLL module outside the C66x CorePac for clock gating and division.
Each of the two device DSP subsystem has following port instances to connect to remaining part
of the device. See also :
– A 128-bit initiator (DSP MDMA master) port for MDMA/Cache requests
– A 128-bit initiator (DSP EDMA master) port for EDMA requests
– A 32-bit initiator (DSP CFG master) port for configuration requests
– A 128-bit target (DSP slave) port for requests to DSP memories and various peripherals
C66x DSP subsystems (DSPSS) safety aspects:
– Above mentioned memory ECC/ED mechanisms
– MMUs enable mapping of only the necessary application space to the processor
– Memory Protection Units internal to the DSPSS (in L1P, L1D and L2 memory controllers) and
external to DSPSS (firewalls) to help define legal accesses and raise exceptions on illegal
accesses
– Exceptions: Memory errors, various DSP errors, MMU errors and some system errors are detected
and cause exceptions. The exceptions could be handled by the DSP or by a designated safety
processor at the chip level. Note that it may not be possible for the safety processor to completely
handle some exceptions
Unsupported features on the C66x DSP core for the device are:
• The Extended Memory Controller MPAX (memory protection and address extension) 36-bit addressing
is NOT supported
Known DSP subsystem power mode restrictions for the device are:
• "Full logic / RAM retention" mode featuring wake-up on both interrupt or DMA event (logic in “always
on” domain). Only OFF mode is supported by DSP subsystem, requiring full boot.
For more information about C66x debug/trace support, see chapter On-Chip Debug Support of the device
TRM.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
177
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
6.4
www.ti.com
IPU
The Imaging Processor Unit (IPU) subsystem contains two ARM® Cortex-M4 cores (IPU_C0 and IPU_C1)
that share a common level 1 (L1) cache (called unicache). The two Cortex-M4 cores are completely
homogeneous to one another. Any task possible using one Cortex-M4 core is also possible using the
other Cortex-M4 core. Both Cortex-M4 cores could be used for tasks such as running RTOS, controlling
ISP, SIMCOP, DSS, and other functions. It is software responsibility to distribute the various tasks
between the Cortex-M4 cores for optimal performance. The integrated interrupt handling of the IPU
subsystem allows it to function as an efficient control unit.
IPU is the boot master of this device with its own boot ROM.
The key features of the IPU subsystem are:
• Two ARM Cortex-M4 microprocessors (IPU_C0 and IPU_C1):
– ARMv7-M and Thumb®-2 instruction set architecture (ISA)
– ARMv6 SIMD and digital signal processor (DSP) extensions
– Single-cycle MAC
– Integrated nested vector interrupt controller (NVIC) (also called IPU_Cx_INTC, where x = 0, 1)
– Integrated bus matrix:
• Bus arbiter
• Bit-banding – atomic bit manipulation
• Write buffer
• Memory interface (I and D) plus system interface (S) and private peripheral bus (PPB)
– Registers:
• Thirteen general-purpose 32-bit registers
• Link register (LR)
• Program counter (PC)
• Program status register, xPSR
• Two banked SP registers
– Integrated power management
– Extensive debug capabilities
• Unicache interface:
– AHBLite to unicache interface
– Instruction and data interface
– Supports interleaved Cortex-M4 requests
• L1 cache (IPU_UNICACHE):
– 32KiB divided into 16 banks
– 4-way
– Runs at twice the Cortex-M4 CPU frequency
– Cache configuration lock/freeze/preload
– Internal MMU:
• 16-entry region-based address translation
• Read/write control and access type control
• Runs at twice the Cortex-M4 CPU frequency
• Execute Never (XN) MMU protection policy
• Little-endian format
– OCP port for configuration and cache maintenance
• Subsystem counter timer module (SCTM) connected to unicache
178
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
L2 master interface (MIF):
– Splitter for access to memory or OCP ports
– Interleaved bank request for fast memory access
L2 internal memories:
– 16KiB ROM – IPU_ROM; used for device boot/initialization
– 64KiB banked RAM – IPU_RAM
L2 MMU (IPU_MMU): 32 entries with Table Walking Logic (TWL)
Wake-up generator (IPU_WUGEN): Generates wake-up request from external interrupts
Two OCP ports at IPU boundary (connected to the L3_MAIN interconnect):
– Master port – allows the IPU to access system resources (memories and peripherals)
– Slave port – allows other requestors to access a part of the IPU internal memory space
Power management:
– Local power-management control: Configurable through the IPU_WUGEN registers.
– Two sleep modes supported by Cortex-M4, controlled by its integrated interrupt controller (NVIC).
– Cortex-M4 system is clock-gated in both sleep modes.
– NVIC interrupt interface stays awake.
– Supports L1 cache and L2 memories retention.
Error-Correcting Code (ECC) supported for both L1 unicache and L2 RAM
Debug/emulation features supported
For more information, see chapter Dual Cortex-M4 IPU Subsystem of the device TRM.
6.5
EVE
The embedded vision engine (EVE) module is a programmable imaging and vision processing engine,
intended for use in devices that serve customer electronics imaging and vision applications. Its
programmability meets late-in-development or post-silicon processing requirements, and lets third parties
or customers add differentiating features in imaging and vision products.
The device includes one instantiation of the EVE engine. A single EVE module consists of an ARP32
scalar core, a vector coprocessor (VCOP) vector core, and an Enhanced DMA (EDMA3) controller.
The EVE engine includes the following main features:
• Two 128-bit interconnect initiator ports used for:
– Paging between system-level memory (L3 SRAM/DDR) and EVE memory (primarily IBUF, WBUF)
– ARP32 program fetches to system memory (through program cache)
– ARP32 load or store requests to system memory
– ARP32 program cache-related read requests, including prefetch/preload requests
• 128-bit interconnect target port used for system-level host or DMA access to EVE memory or MMR
space
• Scalar core (ARP32) with the following features:
– 32KB program cache (direct mapped and prefetch)
– 32KB data memory (DMEM)
• Vector core (VCOP):
– 32KB working buffer (WBUF)
– 16KB image buffer low copy A (IBUFLA)
– 16KB image buffer low copy B (IBUFLB)
– 16KB image buffer high copy A (IBUFHA)
– 16KB image buffer high copy B (IBUFHB)
• EDMA channel controller (EDMACC): 128 PaRAM entries, 2 Queues
• EDMA transfer controllers: two instances, 2k FIFO each
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
179
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
•
•
•
•
•
•
www.ti.com
Memory Management Units (MMUs):
– 32-entry TLB per MMU
– Page walking with hardware
– EDMA accesses and ARP32 program or data accesses to system memory space
– Can limit EVE accesses to desired subset of system addresses
Configuration interconnect for MMR and debug accesses
High-performance interconnect for high throughput and high concurrency data transfers between
connected endpoints
Multiple interrupts for interrupt mapping, DMA event mapping, and interprocessor handshaking
Support for slave idle and master standby protocols for clock gating
No support for retention and memory array off modes
Error detection on all memories:
– Single bit error detect on DMEM, WBUF, IBUFLA, IBUFLB, IBUFHA, and IBUFHB
– Double bit error detect on program cache
Invalid instruction detection in the two processor units (ARP32 and VCOP)
Debug support:
– Subsystem Counter Timer Module (SCTM) for counting and measuring of VCOP, EVE program
cache, and EDMA performance-related state
– Software Messaging System Event Trace (SMSET) for trace of software messages and hardware
events
– ARP32 debug support: State visibility, breakpoint, run control, cross-triggering
– VCOP debug support: State visibility and run control
Interprocessor communication: Internal Mailbox for DSP/EVE communication
For more information, see chapter Embedded Vision Engine (EVE) of the device TRM.
180
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
6.6
6.6.1
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Memory Subsystem
EMIF
The EMIF module provides connectivity between DDR memory types and manages data bus read/write
accesses between external memory and device subsystems which have master access to the L3_MAIN
interconnect and DMA capability.
The EMIF module has the following capabilities:
• Supports JEDEC standard-compliant DDR2-SDRAM and DDR3/DDR3L-SDRAM memory types
• 2-GiB SDRAM address range over one chip-select.
• Supports SDRAM devices with one, two, four or eight internal banks
• Data bus widths:
– 128-bit L3_MAIN (system) interconnect data bus width
– 32-bit SDRAM data bus width
– 16-bit SDRAM data bus width used in narrow mode
• Supported CAS latencies:
– DDR3: 5, 6, 7, 8, 9, 10 and 11
– DDR2: 2, 3, 4, 5, 6 and 7
• Supports 256-, 512-, 1024-, and 2048-word page sizes
• Supported burst length: 8
• Supports sequential burst type
• SDRAM auto initialization from reset or configuration change
• Supports self refresh and power-down modes for low power
• Partial array self-refresh mode for low power when DDR3 is used
• Output impedance (ZQ) calibration for DDR3
• Supports on-die termination (ODT) for DDR2 and DDR3
• Supports prioritized refresh
• Programmable SDRAM refresh rate and backlog counter
• Programmable SDRAM timing parameters
• Write and read leveling/calibration and data eye training for DDR3
• ECC on the SDRAM data bus:
– 7-bit ECC over 32-bit data
– 6-bit ECC over 16-bit data when narrow mode is used
– 1-bit error correction and 2-bit error detection
– Programmable address ranges to define ECC protected region
– ECC calculated and stored on all writes to ECC protected address region
– ECC verified on all reads from ECC protected address region
– Statistics for 1-bit ECC and 2-bit ECC errors
– The total width of the ECC DDR data bus is 8 bits
The EMIF module does not support:
• Burst chop for DDR3
• Interleave burst type
• Auto precharge because of better Bank Interleaving performance
• OCD calibration for DDR2
• CAS Read Latency of 2 and CAS Write Latency of 1 for DDR2
• DLL disabling from EMIF side
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
181
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
For more information, see section DDR External Memory Interface (EMIF) in chapter Memory Subsystem
of the device TRM.
6.6.2
GPMC
The General Purpose Memory Controller (GPMC) is an external memory controller of the device. Its data
access engine provides a flexible programming model for communication with all standard memories.
The GPMC supports the following various access types:
• Asynchronous read/write access
• Asynchronous read page access (4, 8, and 16 Word16)
• Synchronous read/write access
• Synchronous read/write burst access without wrap capability (4, 8 and 16 Word16)
• Synchronous read/write burst access with wrap capability (4, 8 and 16 Word16)
• Address-data-multiplexed (AD) access
• Address-address-data (AAD) multiplexed access
• Little- and big-endian access
The GPMC can communicate with a wide range of external devices:
• External asynchronous or synchronous 8-bit wide memory or device (non burst device)
• External asynchronous or synchronous 16-bit wide memory or device
• External 16-bit non-multiplexed NOR flash device
• External 16-bit address and data multiplexed NOR Flash device
• External 8-bit and 16-bit NAND flash device
• External 16-bit pseudo-SRAM (pSRAM) device
The main features of the GPMC are:
• 8- or 16-bit-wide data path to external memory device
• Supports up to eight CS regions of programmable size and programmable base addresses in a total
address space of 1 GiB
• Supports transactions controlled by a firewall
• On-the-fly error code detection using the Bose-ChaudhurI-Hocquenghem (BCH) (t = 4, 8, or 16) or
Hamming code to improve the reliability of NAND with a minimum effect on software (NAND flash with
512-byte page size or greater)
• Fully pipelined operation for optimal memory bandwidth use
• The clock to the external memory is provided from GPMC functional clock divided by 1, 2, 3, or 4
• Supports programmable autoclock gating when no access is detected
• Independent and programmable control signal timing parameters for setup and hold time on a per-chip
basis. Parameters are set according to the memory device timing parameters, with a timing granularity
of one GPMC functional clock cycle.
• Flexible internal access time control (WAIT state) and flexible handshake mode using external WAIT
pin monitoring
• Support bus keeping
• Support bus turnaround
• Prefetch and write posting engine associated with a device DMA to achieve full performance from the
NAND device with minimum effect on NOR/SRAM concurrent access
For more information, see section General-Purpose Memory Controller (GPMC) in chapter Memory
Subsystem of the device TRM.
182
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
6.6.3
SPRS975C – AUGUST 2016 – REVISED JULY 2017
ELM
When reading from NAND flash memories, some level of error-correction is required. In the case of NAND
modules with no internal correction capability, sometimes referred to as bare NANDs, the correction
process is delegated to the memory controller.
The ELM supports the following features:
• 4, 8, and 16 bits per 512-byte block error location based on BCH algorithm
• Eight simultaneous processing contexts
• Page-based and continuous modes
• Interrupt generation when error location process completes:
– When the full page has been processed in page mode
– For each syndrome polynomial (checksum-like information) in continuous mode
For more information, see section Error Location Module (ELM) in chapter Memory Subsystem of the
device TRM.
6.6.4
OCMC
There is one on-chip memory controller (OCMC) in the device.
The OCM Controller supports the following features:
• L3_MAIN data interface:
– Used for maximum throughput performance
– 128-bit data bus width
– Burst supported
• L4 interface:
– Used for access to configuration registers
– 32-bit data bus width
– Only single accesses supported
– The L4 associated OCMC clock is two times lower than the L3 associated OCMC clock
• Error correction and detection:
– Single error correction and dual error detection
– 9-bit Hamming error correction code (ECC) calculated on 128-bit data word which is concatenated
with memory address bits
– Hamming distance of 4
– Enable/Disable mode control through a dedicated register
– Single bit error correction on a read transaction
– Exclusion of repeated addresses from correctable error address trace history
– ECC valid for all write transactions to an enabled region
– Sub-128-bit writes supported via read modify write
• ECC Error Status Reporting:
– Trace history buffer (FIFO) with depth of 4 for corrected error address
– Trace history buffer with depth of 4 for non correctable error address and also including double
error detection
– Interrupt generation for correctable and uncorrectable detected errors
• ECC Diagnostics Configuration:
– Counters for single error correction (SEC), double error detection (DED) and address error events
(AEE)
– Programmable threshold registers for exeptions associated with SEC, DED and AEE counters
– Register control for enabling and disabling of diagnostics
– Configuration registers and ECC status accessible through L4 interconnect
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
183
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
www.ti.com
Circular buffer for sliced based VIP frame transfers:
– Up to 12 programmable circular buffers mapped with unique virtual frame addresses
– On the fly (with no additional latency) address translation from virtual to OCMC circular buffer
memory space
– Virtual frame size up to 8 MiB and circular buffer size up to 1 MiB
– Error handling and reporting of illegal CBUF addressing
– Underflow and Overflow status reporting and error handling
– Last access read/write address history
Two Interrupt outputs configured independently to service either ECC or CBUF interrupt events
The OCM controller does not have a memory protection logic and does not support endianism conversion.
For more information, see section On-Chip Memory (OCM) Subsystem in chapter Memory Subsystem of
the device TRM.
6.7
6.7.1
Interprocessor Communication
Mailbox
Communication between the on-chip processors of the device uses a queued mailbox-interrupt
mechanism.
The queued mailbox-interrupt mechanism allows the software to establish a communication channel
between two processors through a set of registers and associated interrupt signals by sending and
receiving messages (mailboxes).
The device implements the following mailbox types:
• System mailbox:
– Number of instances: 2
– Used for communication between: DSP1, DSP2, IPU subsystems
– Reference name: MAILBOX1, MAILBOX2
Each mailbox module supports the following features:
• Parameters configurable at design time
– Number of users
– Number of mailbox message queues
– Number of messages (FIFO depth) for each message queue
• 32-bit message width
• Message reception and queue-not-full notification using interrupts
• Support of 16-/32-bit addressing scheme
• Power management support
For more information, see chapter Mailbox of the device TRM.
6.7.2
Spinlock
The Spinlock module provides hardware assistance for synchronizing the processes running on multiple
processors in the device:
• Digital signal processor (DSP) subsystems – DSP1 and DSP2
• Dual Cortex-M4 image processing unit (IPU) subsystems – IPU1 and IPU2
The Spinlock module implements 256 spinlocks (or hardware semaphores), which provide an efficient
way to perform a lock operation of a device resource using a single read-access, avoiding the need of
a readmodify- write bus transfer that the programmable cores are not capable of.
For more information, see chapter Spinlock of the device TRM.
184
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
6.8
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Interrupt Controller
The device has a large number of interrupts to service the needs of its many peripherals and subsystems.
The DSP (x2), and IPU, and EVE subsystems are capable of servicing these interrupts via their integrated
interrupt controllers. In addition, each processor's interrupt controller is preceded by an Interrupt Controller
Crossbar (IRQ_CROSSBAR) that provides flexibility in mapping the device interrupts to processor
interrupt inputs. For more information about IRQ crossbar, see chapter Control Module of the Device
TRM.
C66x DSP Subsystem Interrupt Controller (DSPx_INTC, where x = 1, 2)
There are two Digital Signal Processing (DSP) subsystems in the device - DSP1, and DSP2. Each DSP
subsystem integrates an interrupt controller - DSPx_INTC, which interfaces the system events to the C66x
core interrupt and exceptions inputs. It combines up to 128 interrupts into 12 prioritized interrupts
presented to the C66x CPU.
For detailed information about this module, see chapter DSP Subsystems of the Device TRM.
Dual Cortex-M4 IPU Subsystem Interrupt Controller (IPU_Cx_INTC, where x = 1, 2)
There is one Image Processing Unit (IPU) subsystem in the device. The IPU subsystem integrates two
ARM® Cortex-M4 cores.
A Nested Vectored Interrupt Controller (NVIC) is integrated within each Cortex-M4. The interrupt mapping
is the same for the two cores to facilitate parallel processing. The NVIC supports:
• 96 external interrupts (in addition to 16 Cortex-M4 internal interrupts), which are dynamically prioritized
with 16 levels of priority defined for each core
• Low-latency exception and interrupt handling
• Prioritization and handling of exceptions
• Control of the local power management
• Debug accesses to the processor core
For detailed information about this module, refer to ARM Cortex-M4 Technical Reference Manual
(available at infocenter.arm.com/help/index.jsp).
EVE Subsystem Interrupt Controller (EVE_INTC)
There is one Embedded Video Engine (EVE) subsystems in the device. The EVE subsystem integrates an
interrupt controller - EVE_INTC, which handles incoming interrupts, merging them with internal interrupt
sources to drive ARP32's interrupt inputs. It also allows ARP32 to generate outgoing interrupts or events
to synchronize with other system processors and EDMA.
The EVE_INTC supports up to 32 active-high level interrupt inputs. Its architecture allows both hardware
and software prioritization.
For detailed information about this module, see chapter Embedded Vision Engine of the Device TRM.
6.9
EDMA
The enhanced direct memory access module, also called EDMA, performs high-performance data
transfers between two slave points, memories and peripheral devices without microprocessor unit (MPU)
or digital signal processor (DSP) support during transfer. EDMA transfer is programmed through a logical
EDMA channel, which allows the transfer to be optimally tailored to the requirements of the application.
The EDMA can also perform transfers between external memories and between device subsystems
internal memories, with some performance loss caused by resource sharing between the read and write
ports.
EDMA controller is based on two major principal blocks:
• EDMA third-party channel controller (EDMA_TPCC)
• EDMA third-party transfer controller (EDMA_TPTC)
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
185
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
•
•
•
•
•
•
186
www.ti.com
The EDMA_TPCC channel controller has following features:
Fully orthogonal transfer description:
– Three transfer dimensions.
– A-synchronized transfers: one-dimension serviced per event.
– AB-synchronized transfers: two-dimensions serviced per event.
– Independent indexes on source and destination.
– Chaining feature allows a 3-D transfer based on a single event.
Flexible transfer definition:
– Increment or FIFO transfer addressing modes.
– Linking mechanism allows automatic PaRAM set update.
– Chaining allows multiple transfers to execute with one event.
Interrupt generation for the following:
– Transfer completion.
– Error conditions.
Debug visibility:
– Queue water marking/threshold.
– Error and status recording to facilitate debug.
64 DMA request channels:
– Event synchronization.
– Chain synchronization (completion of one transfer triggers another transfer).
Eight QDMA channels:
– QDMA channels trigger automatically upon writing to a parameter RAM (PaRAM) set entry.
– Support for programmable QDMA channel to PaRAM mapping.
512 PaRAM sets:
– Each PaRAM set can be used for a DMA channel, QDMA channel, or link set.
Two transfer controllers/event queues.
16 event entries per event queue.
Memory protection support:
– Proxy memory protection for TR submission.
– Active memory protection for accesses to PaRAM and registers.
The EDMA_TPTC transfer controller has the following features:
• Two transfer controllers (TC).
• 128-bit wide read and write ports per TC.
• Up to four in-flight transfer requests (TRs).
• Programmable priority level.
• Supports two-dimensional transfers with independent indexes on source and destination
(EDMA_TPCC manages the 3rd dimension).
• Support for increment or constant addressing mode transfers.
• Interrupt and error support.
• Memory-Mapped Register (MMR) bit fields are fixed position in 32-bit MMR regardless of
endianness.
EDMA controller uses the shared MMU1 module for transfering to and from DSP module. This
provides several benefits including:
• Protection of Host CPU memory regions from accidental corruption by EDMA TPTCs.
• Direct allocation of buffers in user space without the need for translation between CPU and DSP
applications using EDMA TPTCs.
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Accesses by the EDMA TPTCs (both TPTC0 and TPTC1) may optionally be routed through the
MMU1.
The TPTC0 and TPTC1 routing allows EDMA transfer controller to be used to perform transfers using
only the virtual addresses of the associated buffers.
For more information chapter Enhanced DMA of the device TRM.
6.10 Peripherals
6.10.1 VIP
The VIP module provides video capture functions for the device. VIP incorporates a multichannel raw
video parser, various video processing blocks, and a flexible Video Port Direct Memory Access (VPDMA)
engine to store incoming video in various formats. The device uses a single instantiation of the VIP
module giving the ability of capturing up to two video streams.
A VIP module includes the following main features:
• Two independently configurable external video input capture slices (Slice 0 and Slice 1) each of which
has two video input ports, Port A and Port B, where Port A can be configured as a 16/8-bit port, and
Port B is a fixed 8-bit port.
• Each video Port A can be operated as a port with clock independent input channels (with interleaved or
separated Y/C data input). Embedded sync and external sync modes are supported for all input
configurations.
• Support for a single external asynchronous pixel clock, up to 165MHz per port.
• Pixel Clock Input Domain Port A supports up to one 16-bit input data bus, including BT.1120 style
embedded sync for 16-bit data.
• Embedded Sync data interface mode supports single or multiplexed sources
• Discrete Sync data interface mode supports only single source input
• 16-bit data input plus discrete syncs can be configured to include:
– 8-bit YUV422 (Y and U/V time interleaved)
– 16-bit YUV422 (CbY and CrY time interleaved)
– 16-bit RGB565
– 16-bit RAW Capture
• Discrete sync modes include:
– VSYNC + HSYNC (FID determined by FID signal pin or HSYNC/VSYNC skew)
– VSYNC + ACTVID + FID
– VBLANK + ACTVID (ACTVID toggles in VBLANK) + FID
– VBLANK + ACTVID (no ACTVID toggles in VBLANK) + FID
• Multichannel parser (embedded syncs only)
– Embedded syncs only
– Pixel (2x or 4x) or Line multiplexed modes supported
– Performs demultiplexing and basic error checking
– Supports maximum of 9 channels in Line Mux (8 normal + 1 split line)
• Ancillary data capture support
– For 16-bit input, ancillary data may be extracted from any single channel
– For 8-bit time interleaved input, ancillary data can be chosen from the Luma channel, the Chroma
channel, or both channels
– Horizontal blanking interval data capture only supported when using discrete syncs (VSYNC +
HSYNC or VSYNC + HBLANK)
– Ancillary data extraction supported on multichannel capture as well as single source streams
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
187
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
•
www.ti.com
Format conversion and scaling
– Programmable color space conversion
– YUV422 to YUV444 conversion
– YUV444 to YUV422 conversion
– YUV422 to YUV420 conversion
– YUV422 Source: YUV422 to YUV422, YUV422 to YUV420, YUV422 to YUV444, YUV422 to
RGB888
– Supports RAW to RAW (no processing)
– Scaling and format conversions do not work for multiplexed input
Supports up to 2047 pixels wide input - when scaling is engaged
Supports up to 3840 pixels wide input - when only chroma up/down sampling is engaged, without
scaling
Supports up to 4095 pixels wide input - without scaling and chroma up/down sampling
The maximum supported input resolution is further limited by pixel clock and feature-dependent
constraints
For more information, see chapter Video Input Port of the device TRM.
6.10.2 DSS
The Display Subsystem (DSS) provides the logic to interface display peripherals. DSS integrates a DMA
engine as part of DISPC module, which allows direct access to the memory frame buffer. Various pixel
processing capabilities are supported, such as: color space conversion, filtering, scaling, blending, color
keying, etc.
The supported display interfaces are:
• One parallel CMOS output, which can be used for MIPI® DPI 2.0, or BT-656 or BT-1120.
• One TV output, which is connected to the internal Video Encoder module (VENC). The VENC drives a
single video digital-to-analog converter (SD_DAC) supporting composite video mode.
The modules integrated in the display subsystem are:
• Display controller (DISPC), with the following main features
– One direct memory access (DMA) engine
– One graphics pipeline (GFX), two video pipelines (VID1 and VID2), and one write-back pipeline
(WB)
– Two overlay managers
– Active Matrix color support for 12/16/18/24-bit (truncated or dithered encoded pixel values)
– One Video Port (VP) with programmable timing generator to support:
• DPI: up to 165 MHz pixel clock video formats defined in CEA-861-E and VESA DMT standards
• VENC: NTSC/PAL standards with 60Hz/50Hz refresh rates
– Supported maximum FrameBuffer width of 4096 for all pixel formats
– Configurable output mode: progressive or interlaced
– Selection between RGB and YUV422 output pixel formats (YUV4:2:2 only available when BT-656
or BT-1120 output mode is enabled)
For more information, see section Display Controller in chapter Display Subsystem of the device TRM.
• Video Encoder (VENC) with 10-bit standard definition video DAC (SD_DAC).
For more information, see section Video Encoder in chapter Display Subsystem of the device TRM.
DSS provides two interfaces to L3_MAIN interconnect
• One 128-bit master port (with MFLAG support). The DMA engine in DISPC uses this single master to
read/write data from/to device system memory.
188
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
One 32-bit slave port. Used for registers configuration. It is further connected internally to DISPC and
VENC modules.
For more information, see chapter Display Subsystem of the device TRM.
6.10.3 ATL
The audio tracking logic (ATL) is used by HD Radio™ applications to synchronize the digital audio output
to the baseband clock. This same IP can also be used generically to track errors between two reference
signals (such as frame syncs) and generate a modulated clock output (using software-controlled cycle
stealing) which averages to some desired frequency. This process can be used as a hardware assist for
asynchronous sample rate conversion algorithms. The tracking range is limited, so direct conversion
between the two standard sample rate groups frequencies from 44.1 to 48 kHz is not possible.
The ATL includes the following main features:
• One ATL module, containing four ATL instances, for HD Radio support and asynchronous sample rate
conversion assistance
• Each instance tracks the time error between two syncs (local audio word select [AWS] and baseband
word select [BWS])
• Each instance selects between 16 mux choices for each of AWS and BWS.
• Each instance generates modulated ATCLK_OUT clock signal with software-initiated pulse stealing.
• Selection between INTERCONNECT clock or functional ATLPCLK to run error couting timers and to
derive modulated ATCLK_OUT clock outputs
• Clock and reset management: Receives clock and reset signals from the device power, reset, and
clock management (PRCM) module. The PRCM module has its own dedicated clock domain
(CD_ATL). The module receives hardware reset from the CORE_RST reset domain.
• Power management: The ATL belongs to the PD_COREAON power domain.
For more information, see chapter Audio Tracking Logic of the device TRM.
6.10.4 ADC
The analog-to-digital converter (ADC) module is a successive-approximation-register (SAR) generalpurpose analog-to-digital converter.
The main features of the ADC include:
• 10-bit data.
• 8 general-purpose ADC channels.
• 750 KSPS at 13.5-MHz ADC_CLK.
• Programmable FSM sequencer.
• Support interrupts and status, with masking.
For more information, see chapter ADC of the device TRM.
6.10.5 ISS
The imaging subsystem (ISS) deals with the processing of the pixel data coming from an external image
sensor or data from memory (image format encoding and decoding can be done to and from memory).
With its subparts, such as interfaces and interconnects, image signal processor (ISP), and still image
coprocessor (SIMCOP), the ISS is a key component for the following applications:
• Rear View Camera
• Front View Stereo Camera
• Surround View Camera
The ISS offers the following features:
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
189
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
www.ti.com
ISS interfaces:
– Camera Adapter Layer (CAL_A) module, which serves as sensor capture interface supporting
MIPI® CSI-2 protocol via external MIPI D-PHY module (CSI2_PHY1), and in addition provides write
DMA capability
– CAL_B module, serving as internal read DMA engine, without direct sensor capture interface
capability
– Parallel interface (CPI) (16 bits wide, with up to 212.8 MPix/s throughput, and supporting BT656,
SYNC modes)
– LVDS receiver
– 128-bit-wide data interface to L3_MAIN interconnect
For more information, see chapter Imaging Subsystem of the device TRM.
6.10.6 Timers
The device includes several types of timers used by the system software, including eight general-purpose
(GP) timers, and a 32-kHz synchronized timer (COUNTER_32K).
6.10.6.1 General-Purpose Timers
The device has eight GP timers: TIMER1 through TIMER8.
• TIMER1 (1-ms tick) includes a specific function to generate accurate tick interrupts to the operating
system and it belongs to the PD_WKUPAON domain.
• TIMER2 through TIMER8 belong to the PD_COREAON module.
Each timer can be clocked from the system clock (19.2, 20, or 27 MHz) or the 32-kHz clock. Select the
clock source at the power, reset, and clock management (PRCM) module level.
Each timer provides an interrupt through the device IRQ_CROSSBAR.
The following are the main features of the GP timer controllers:
• Level 4 (L4) slave interface support:
– 32-bit data bus width
– 32-/16-bit access supported
– 8-bit access not supported
– 10-bit address bus width
– Burst mode not supported
– Write nonposted transaction mode supported
• Interrupts generated on overflow, compare, and capture
• Free-running 32-bit upward counter
• Compare and capture modes
• Autoreload mode
• Start and stop mode
• Programmable divider clock source (2n, where n = [0:8])
• Dedicated input trigger for capture mode and dedicated output trigger/PWM signal
• Dedicated GP output signal for using the TIMERi_GPO_CFG signal
• On-the-fly read/write register (while counting)
• 1-ms tick with 32.768-Hz functional clock generated (only TIMER1)
For more information, see section General-Purpose Timers in chapter Timers of the device TRM.
6.10.6.2 32-kHz Synchronized Timer (COUNTER_32K)
The 32-kHz synchronized timer (COUNTER_32K) is a 32-bit counter clocked by the falling edge of the 32kHz system clock.
190
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
The main features of the 32-kHz synchronized timer controller are:
• L4 slave interface (OCP) support:
– 32-bit data bus width
– 32-/16-bit access supported
– 8-bit access not supported
– 16-bit address bus width
– Burst mode not supported
– Write nonposted transaction mode not supported
• Only read operations are supported on the module registers; no write operation is supported (no
error/no action on write).
• Free-running 32-bit upward counter
• Start and keep counting after power-on reset
• Automatic roll over to 0; highest value reached: 0xFFFF FFFF
• On-the-fly read (while counting)
For more information, see section 32-kHz Synchronized Timer (COUNTER_32K) in chapter Timers of the
device TRM.
6.10.7 I2C
The device contains five multimaster inter-integrated circuit (I2C) controllers (I2Ci modules, where i = 1, 2)
each of which provides an interface between a local host (LH), such as a digital signal processor (DSP),
and any I2C-bus-compatible device that connects through the I2C serial bus. External components
attached to the I2C bus can serially transmit and receive up to 8 bits of data to and from the LH device
through the 2-wire I2C interface.
Each multimaster I2C controller can be configured to act like a slave or master I2C-compatible device.
For more information, see section Multimaster I2C Controller in chapter Serial Communication Interfaces
of the device TRM.
6.10.8 UART
The UART is a simple L4 slave peripheral that use the EDMA for data transfer or IRQ polling via CPU.
There are 3 UART modules in the device. Each UART can be used for configuration and data exchange
with a number of external peripheral devices or interprocessor communication between devices.
6.10.8.1 UART Features
The UARTi (where i = 1 to 3) include the following features:
• 16C750 compatibility
• 64-byte FIFO buffer for receiver and 64-byte FIFO for transmitter
• Programmable interrupt trigger levels for FIFOs
• Baud generation based on programmable divisors N (where N = 1…16,384) operating from a fixed
functional clock of 48 MHz or 192 MHz
Oversampling is programmed by software as 16 or 13. Thus, the baud rate computation is one of two
options:
• Baud rate = (functional clock / 16) / N
• Baud rate = (functional clock / 13) / N
• This software programming mode enables higher baud rates with the same error amount without
changing the clock source
• Break character detection and generation
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
191
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
www.ti.com
Configurable data format:
– Data bit: 5, 6, 7, or 8 bits
– Parity bit: Even, odd, none
– Stop-bit: 1, 1.5, 2 bit(s)
Flow control: Hardware (RTS/CTS) or software (XON/XOFF)
The 48 MHz functional clock option allows baud rates up to 3.6Mbps
The 192 MHz functional clock option allows baud rates up to 12Mbps
For more information, see section UART in chapter Serial Communication Interfaces of the device TRM.
6.10.9 McSPI
The McSPI is a master/slave synchronous serial bus. There are four separate McSPI modules (SPI1,
SPI2, SPI3, and SPI4) in the device. All these four modules are able to work as both master and slave
and support the following chip selects:
• MCSPI1: spi1_cs[0], spi1_cs[1], spi1_cs[2], spi1_cs[3]
• MCSPI2: spi2_cs[0], spi2_cs[1]
• MCSPI3: spi3_cs[0], spi3_cs[1]
• MCSPI4: spi4_cs[0]
The McSPI modules include the following main features:
• Serial clock with programmable frequency, polarity, and phase for each channel
• Wide selection of SPI word lengths, ranging from 4 to 32 bits
• Up to four master channels, or single channel in slave mode
• Master multichannel mode:
– Full duplex/half duplex
– Transmit-only/receive-only/transmit-and-receive modes
– Flexible input/output (I/O) port controls per channel
– Programmable clock granularity
– SPI configuration per channel. This means, clock definition, polarity enabling and word width
• Single interrupt line for multiple interrupt source events
• Power management through wake-up capabilities
• Enable the addition of a programmable start-bit for SPI transfer per channel (start-bit mode)
• Supports start-bit write command
• Supports start-bit pause and break sequence
• Programmable timing control between chip select and external clock generation
• Built-in FIFO available for a single channel
For more information, see section Multichannel Serial Peripheral Interface in chapter Serial
Communication Interfaces of the device TRM.
192
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
6.10.10 QSPI
The quad serial peripheral interface (QSPI™) module is a kind of SPI module that allows single, dual, or
quad read access to external SPI devices. This module has a memory mapped register interface, which
provides a direct interface for accessing data from external SPI devices and thus simplifying software
requirements. The QSPI works as a master only.
The QSPI supports the following features:
• General SPI features:
– Programmable clock divider
– Six pin interface
– Programmable length (from 1 to 128 bits) of the words transferred
– Programmable number (from 1 to 4096) of the words transferred
– 4 external chip-select signals
– Support for 3-, 4-, or 6-pin SPI interface
– Optional interrupt generation on word or frame (number of words) completion
– Programmable delay between chip select activation and output data from 0 to 3 QSPI clock cycles
– Programmable signal polarities
– Programmable active clock edge
– Software-controllable interface allowing for any type of SPI transfer
– Control through L3_MAIN configuration port
• Serial flash interface (SFI) features:
– Serial flash read/write interface
– Additional registers for defining read and write commands to the external serial flash device
– 1 to 4 address bytes
– Fast read support, where fast read requires dummy bytes after address bytes; 0 to 3 dummy bytes
can be configured.
– Dual read support
– Quad read support
– Little-endian support only
– Linear increment addressing mode only
The QSPI supports only dual and quad reads. Dual or quad writes are not supported. In addition, there is
no "pass through" mode supported where the data present on the QSPI input is sent to its output.
For more information, see section Quad Serial Peripheral Interface in chapter Serial Communication
Interfaces of the device TRM.
6.10.11 McASP
The McASP functions as a general-purpose audio serial port optimized to the requirements of various
audio applications. The McASP module can operate in both transmit and receive modes. The McASP is
useful for time-division multiplexed (TDM) stream, Inter-IC Sound (I2S) protocols reception and
transmission as well as for an intercomponent digital audio interface transmission (DIT). The McASP has
the flexibility to gluelessly connect to a Sony/Philips digital interface (S/PDIF) transmit physical layer
component.
Although intercomponent digital audio interface reception (DIR) mode (i.e. S/PDIF stream receiving) is not
natively supported by the McASP module, a specific TDM mode implementation for the McASP receivers
allows an easy connection to external DIR components (for example, S/PDIF to I2S format converters).
The device has integrated 3 McASP modules with:
• McASP1 supports 16 channels with independent TX/RX clock/sync domain
• McASP2 and McASP3 support 6 channels with independent TX/RX clock/sync domain
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
193
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
For more information, see section Multichannel Audio Serial Port in chapter Serial Communication
Interfaces of the device TRM.
6.10.12 DCAN
The Controller Area Network (CAN) is a serial communications protocol which efficiently supports
distributed real-time applications. CAN has high immunity to electrical interference and the ability to selfdiagnose and repair data errors. In a CAN network, many short messages are broadcast to the entire
network, which provides for data consistency in every node of the system.
The device supports:
• One DCAN module, referred to as DCAN1
The DCAN interface implements the following features:
• Supports CAN protocol version 2.0 part A, B
• Bit rates up to 1 MBit/s
• 64 message objects in a dedicated message RAM
• Individual identifier mask for each message object
• Programmable FIFO mode for message objects
• Programmable loop-back modes for self-test operation
• Suspend mode for debug support
• Automatic bus on after Bus-Off state by a programmable 32-bit timer
• Message RAM single error correction and double error detection (SECDED) mechanism
• Direct access to message RAM during test mode
• Support for two interrupt lines: Level 0 and Level 1, plus separate ECC interrupt line
• Local power down and wakeup support
• Automatic message RAM initialization
• Support for DMA access
For more information, see section DCAN in chapter Serial Communication Interfaces of the device TRM.
6.10.13 MCAN
The Controller Area Network (CAN) is a serial communications protocol which efficiently supports
distributed real-time control with a high level of security. CAN has high immunity to electrical interference
and the ability to self-diagnose and repair data errors. In a CAN network, many short messages are
broadcast to the entire network, which provides for data consistency in every node of the system.
The MCAN module supports both classic CAN and CAN FD (CAN with Flexible Data-Rate) specifications.
CAN FD feature allows high throughput and increased payload per data frame. The classic CAN and CAN
FD devices can coexist on the same network without any conflict.
The MCAN module implements the following features:
• Conforms with ISO 11898-1:2015
• Full CAN FD support (up to 64 data bytes)
• AUTOSAR and SAE J1939 support
• Up to 32 dedicated Transmit Buffers
• Configurable Transmit FIFO, up to 32 elements
• Configurable Transmit Queue, up to 32 elements
• Configurable Transmit Event FIFO, up to 32 elements
• Up to 64 dedicated Receive Buffers
• Two configurable Receive FIFOs, up to 64 elements each
• Up to 128 filter elements
194
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Internal Loopback mode for self-test
Maskable interrupts, two interrupt lines
Two clock domains (CAN clock/Host clock)
Parity/ECC support - Message RAM single error correction and double error detection (SECDED)
mechanism
Local power-down and wakeup support
Timestamp Counter
For more information, see section MCAN in chapter Serial Communication Interfaces of the device TRM.
6.10.14 GMAC_SW
The three-port gigabit ethernet switch subsystem (GMAC_SW) provides ethernet packet communication
and can be configured as an ethernet switch. It provides the reduced gigabit media independent interface
(RGMII), and the management data input output (MDIO) for physical layer device (PHY) management.
The GMAC_SW subsystem provides the following features:
• Two Ethernet ports (port 1 and port 2) with RGMII interfaces plus internal Communications Port
Programming Interface (CPPI 3.1) on port 0
• Synchronous 10/100/1000 Mbit operation
• Wire rate switching (802.1d)
• Non-blocking switch fabric
• Flexible logical FIFO-based packet buffer structure
• Four priority level Quality Of Service (QOS) support (802.1p)
• CPPI 3.1 compliant DMA controllers
• Support for Audio/Video Bridging (P802.1Qav/D6.0)
• Support for IEEE 1588 Clock Synchronization (2008 Annex D and Annex F)
– Timing FIFO and time stamping logic embedded in the subsystem
• Device Level Ring (DLR) Support
• Energy Efficient Ethernet (EEE) support (802.3az)
• Flow Control Support (802.3x)
• Address Lookup Engine (ALE)
– 1024 total address entries plus VLANs
– Wire rate lookup
– Host controlled time-based aging
– Multiple spanning tree support (spanning tree per VLAN)
– L2 address lock and L2 filtering support
– MAC authentication (802.1x)
– Receive-based or destination-based multicast and broadcast rate limits
– MAC address blocking
– Source port locking
– OUI (Vendor ID) host accept/deny feature
– Remapping of priority level of VLAN or ports
• VLAN support
– 802.1Q compliant
• Auto add port VLAN for untagged frames on ingress
• Auto VLAN removal on egress and auto pad to minimum frame size
• Ethernet Statistics:
– EtherStats and 802.3Stats Remote network Monitoring (RMON) statistics gathering (shared)
– Programmable statistics interrupt mask when a statistic is above one half its 32-bit value
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
195
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
•
•
•
•
•
•
•
www.ti.com
Flow Control Support (802.3x)
Digital loopback and FIFO loopback modes supported
Maximum frame size 2016 bytes (2020 with VLAN)
8k (2048 × 32) internal CPPI buffer descriptor memory
Management Data Input/Output (MDIO) module for PHY Management
Programmable interrupt control with selected interrupt pacing
Emulation support
Programmable Transmit Inter Packet Gap (IPG)
Reset isolation (switch function remains active even in case of all device resets except for POR pin
reset and ICEPICK cold reset)
Full duplex mode supported in 10/100/1000 Mbps. Half-duplex mode supported only in 10/100 Mbps.
IEEE 802.3 gigabit Ethernet conformant
For more information, see section Gigabit Ethernet Switch (GMAC_SW) in chapter Serial Communication
Interfaces of the device TRM.
6.10.15 SDIO
The SDIO host controller provides an interface between a local host (LH) such as a microprocessor unit or
digital signal processor and SDIO cards. It handles SDIO transactions with minimal LH intervention.
The SDIO host controller deals with SDIO protocol at transmission level, data packing, adding cyclic
redundancy checks (CRCs), start/end bit, and checking for syntactical correctness.
The application interface can send every SDIO command and poll for the status of the adapter or wait for
an interrupt request, which is sent back in case of exceptions or to warn of end of operation.
The application interface can read card responses or flag registers. It can also mask individual interrupt
sources. All these operations can be performed by reading and writing control registers. The SDIO host
controller also supports two slave DMA channels.
Compliance with standards:
• SDIO command/response sets and interrupt/read-wait suspend-resume operations as defined in the
SD part E1 specification v3.00
• SD command/response sets as defined in the SD Physical Layer specification v3.01
• SD Host Controller Standard Specification sets as defined in the SD card specification Part A2 v3.00
Main features of the SD/SDIO host controllers:
• Flexible architecture allowing support for new command structure
• 32-bit wide access bus to maximize bus throughput
• Designed for low power
• Programmable clock generation
• L4 slave interface supports:
– 32-bit data bus width
– 8/16/32 bit access supported
– 9-bit address bus width
– Streaming burst supported only with burst length up to 7
– WNP supported
• Built-in 1024-byte buffer for read or write
• Two DMA channels, one interrupt line
• Supported data transfer rates up to SDR25 mode
• The SDIO controller is connected to 1,8V/3.3V compatible I/Os to support 1,8V/3.3V signaling
196
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
The differences between the SDIO host controller and a standard SD host controller defined by the SD
Card Specification, Part A2, SD Host Controller Standard Specification, v3.00 are:
• The clock divider in the SDIO host controller supports a wider range of frequency than specified in the
SD Memory Card Specifications, v3.0. The SDIO host controller supports odd and even clock ratioes.
• The SDIO host controller supports configurable busy time-out.
• There is no external LED control
For more information, see chapter SDIO Controller of the device TRM.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
197
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
6.10.16 GPIO
The general-purpose interface combines four general-purpose input/output (GPIO) banks.
Each GPIO module provides 32 dedicated general-purpose pins with input and output capabilities; thus,
the general-purpose interface supports up to 126 pins.
These pins can be configured for the following applications:
• Data input (capture)/output (drive)
• Keyboard interface with a debounce cell
• Interrupt generation in active mode upon the detection of external events. Detected events are
processed by two parallel independent interrupt-generation submodules to support biprocessor
operations.
• Wake-up request generation in idle mode upon the detection of external events
For more information, see chapter General-Purpose Interface of the device TRM.
6.10.17 ePWM
An effective PWM peripheral must be able to generate complex pulse width waveforms with minimal CPU
overhead or intervention. It needs to be highly programmable and very flexible while being easy to
understand and use. The ePWM unit described here addresses these requirements by allocating all
needed timing and control resources on a per PWM channel basis. Cross coupling or sharing of resources
has been avoided; instead, the ePWM is built up from smaller single channel modules with separate
resources and that can operate together as required to form a system. This modular approach results in
an orthogonal architecture and provides a more transparent view of the peripheral structure, helping users
to understand its operation quickly.
Each ePWM module supports the following features:
• Dedicated 16-bit time-base counter with period and frequency control
• Two PWM outputs (EPWM1A and EPWM2B) that can be used in the following configurations:
– Two independent PWM outputs with single-edge operation
– Two independent PWM outputs with dual-edge symmetric operation
– One independent PWM output with dual-edge asymmetric operation
• Asynchronous override control of PWM signals through software.
• Hardware-locked (synchronized) phase relationship on a cycle-by-cycle basis.
• Dead-band generation with independent rising and falling edge delay control.
• Programmable trip zone allocation of both cycle-by-cycle trip and one-shot trip on fault conditions.
• A trip condition can force either high, low, or high-impedance state logic levels at PWM outputs.
• Programmable event prescaling minimizes CPU overhead on interrupts.
• PWM chopping by high-frequency carrier signal, useful for pulse transformer gate drives.
For more information, see section Enhanced PWM (ePWM) Module in chapter Pulse-Width Modulation
Subsystem of the device TRM.
6.10.18 eCAP
Uses for eCAP include:
• Sample rate measurements of audio inputs
• Speed measurements of rotating machinery (for example, toothed sprockets sensed via Hall sensors)
• Elapsed time measurements between position sensor pulses
• Period and duty cycle measurements of pulse train signals
• Decoding current or voltage amplitude derived from duty cycle encoded current/voltage sensors
The eCAP module includes the following features:
198
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
•
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
32-bit time base counter
4-event time-stamp registers (each 32 bits)
Edge polarity selection for up to four sequenced time-stamp capture events
Interrupt on either of the four events
Single shot capture of up to four event time-stamps
Continuous mode capture of time-stamps in a four-deep circular buffer
Absolute time-stamp capture
Difference (Delta) mode time-stamp capture
All above resources dedicated to a single input pin
When not used in capture mode, the ECAP module can be configured as a single channel PWM output
For more information, see section Enhanced Capture (eCAP) Module in chapter Pulse-Width Modulation
Subsystem of the device TRM.
6.10.19 eQEP
A single track of slots patterns the periphery of an incremental encoder disk. These slots create an
alternating pattern of dark and light lines. The disk count is defined as the number of dark/light line pairs
that occur per revolution (lines per revolution). As a rule, a second track is added to generate a signal that
occurs once per revolution (index signal: QEPI), which can be used to indicate an absolute position.
Encoder manufacturers identify the index pulse using different terms such as index, marker, home
position, and zero reference.
To derive direction information, the lines on the disk are read out by two different photo-elements that
"look" at the disk pattern with a mechanical shift of 1/4 the pitch of a line pair between them. This shift is
realized with a reticle or mask that restricts the view of the photo-element to the desired part of the disk
lines. As the disk rotates, the two photo-elements generate signals that are shifted 90 degrees out of
phase from each other. These are commonly called the quadrature QEPA and QEPB signals. The
clockwise direction for most encoders is defined as the QEPA channel going positive before the QEPB
channel.
The encoder wheel typically makes one revolution for every revolution of the motor or the wheel may be at
a geared rotation ratio with respect to the motor. Therefore, the frequency of the digital signal coming from
the QEPA and QEPB outputs varies proportionally with the velocity of the motor. For example, a 2000-line
encoder directly coupled to a motor running at 5000 revolutions per minute (rpm) results in a frequency of
166.6 KHz, so by measuring the frequency of either the QEPA or QEPB output, the processor can
determine the velocity of the motor.
For more information, see section Enhanced Quadrature Encoder Pulse (eQEP) Module in chapter PulseWidth Modulation Subsystem of the device TRM.
6.11 On-Chip Debug
Debugging a system that contains an embedded processor involves an environment that connects highlevel debugging software running on a host computer to a low-level debug interface supported by the
target device. Between these levels, a debug and trace controller (DTC) facilitates communication
between the host debugger and the debug support logic on the target chip.
The DTC is a combination of hardware and software that connects the host debugger to the target system.
The DTC uses one or more hardware interfaces and/or protocols to convert actions dictated by the
debugger user to JTAG® commands and scans that execute the core hardware.
The debug software and hardware components let the user control multiple central processing unit (CPU)
cores embedded in the device in a global or local manner. This environment provides:
• Synchronized global starting and stopping of multiple processors
• Starting and stopping of an individual processor
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
199
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
www.ti.com
Each processor can generate triggers that can be used to alter the execution flow of other processors
System topics include but are not limited to:
• System clocking and power-down issues
• Interconnection of multiple devices
• Trigger channels
The device deploys Texas Instrument's CTools debug technology for on-chip debug and trace support. It
provides the following features:
• External debug interfaces:
– Primary debug interface - IEEE1149.1 (JTAG) or IEEE1149.7 (complementary superset of JTAG)
• Used for debugger connection
• Default mode is IEEE1149.1 but debugger can switch to IEEE1149.7 via an IEEE1149.7
adapter module
• Controls ICEPick™ (generic test access port [TAP] for dynamic TAP insertion) to allow the
debugger to access several debug resources through its secondary (output) JTAG ports (for
more information, see section ICEPick Secondary TAPs in chapter On-Chip Debug Support of
the Device TRM).
– Debug (trace) port
• Can be used to export processor or system trace off-chip (to an external trace receiver)
• Can be used for cross-triggering with an external device
• Configured through debug resources manager (DRM) module instantiated in the debug
subsystem
• For more information about debug (trace) port, see sections Debug (Trace) Port and Concurrent
Debug Modes in chapter On-Chip Debug Support of the Device TRM.
• JTAG based processor debug on:
– C66x in DSP1, DSP2
– Cortex-M4 (x2) in IPU
• Dynamic TAP insertion
– Controlled by ICEPick
– For more information, see section Dynamic TAP Insertion in chapter On-Chip Debug Support of the
Device TRM
• Power and clock management
– Debugger can get the status of the power domain associated to each TAP.
– Debugger may prevent the application software switching off the power domain.
– Application power management behavior can be preserved during debug across power transitions.
– For more information, see section Power and Clock Management in chapter On-Chip Debug
Support of the Device TRM.
• Reset management
– Debugger can configure ICEPick to assert, block, or extend the reset of a given subsystem.
– For more information, see section Reset Management in chapter On-Chip Debug Support of the
Device TRM.
200
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Cross-triggering
– Provides a way to propagate debug (trigger) events from one processor, subsystem, or module to
another:
• Subsystem A can be programmed to generate a debug event, which can then be exported as a
global trigger across the device.
• Subsystem B can be programmed to be sensitive to the trigger line input and to generate an
action on trigger detection.
– Two global trigger lines are implemented
– Device-level cross-triggering is handled by the XTRIG (TI cross-trigger) module implemented in the
debug subsystem
– For more information about cross-triggering, see section Cross-Triggering in chapter On-Chip
Debug Support of the Device TRM.
Suspend
– Provides a way to stop a closely coupled hardware process running on a peripheral module when
the host processor enters debug state
– For more information about suspend, see section Suspend in chapter On-Chip Debug Support of
the Device TRM.
Processor trace
– C66x (DSP) processor trace is supported
– Two exclusive trace sinks:
• CoreSight Trace Port Interface Unit (CS_TPIU) – trace export to an external trace receiver
– For more information, see section Processor Trace in chapter On-Chip Debug Support of the
Device TRM.
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Detailed Description
201
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
www.ti.com
System instrumentation (trace)
– Supported by a CTools System Trace Module (CT_STM), implementing MIPI System Trace
Protocol (STP) (rev 2.0)
– Real-time software trace
• System-on-chip (SoC) software instrumentation through CT_STM (STP2.0)
– OCP watchpoint (OCP_WP_NOC)
• OCP target traffic monitoring: OCP_WP_NOC can be configured to generate a trigger upon
watchpoint match (that is, when target transaction attributes match the user-defined attributes).
• SoC events trace
• DMA transfer profiling
– Statistics collector (performance probes)
• Computes traffic statistics within a user-defined window and periodically reports to the user
through the CT_STM interface
• Embedded in the L3_MAIN interconnect
• 10 instances:
– 1 instance dedicated to target (SDRAM) load monitoring
– 9 instances dedicated to master latency monitoring
– Power-management events profiling (PM instrumentation [PMI])
• Monitoring major power-management events. The PM state changes are handled as generic
events and encapsulated in STP messages.
– Clock-management events profiling CM instrumentation [CMI]) for CM_CORE_AON clocks
• Monitoring major clock management events. The CM state changes are handled as generic
events and encapsulated in STP messages.
• One instances
– CM1 Instrumentation (CMI1) module mapped in the PD_CORE_AON power domain
– For more information, see section System Instrumentation in chapter On-Chip Debug Support of
the Device TRM.
Performance monitoring
– Supported by subsystem counter timer module (SCTM) for IPU
For more information, see chapter On-Chip Debug Support of the device TRM.
202
Detailed Description
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7 Applications, Implementation, and Layout
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test design implementation to confirm system functionality.
7.1
Introduction
This chapter is intended to communicate, guide and illustrate a PCB design strategy resulting in a PCB
that can support TI’s latest Application Processor. This Processor is a high-performance processor
designed for automotive Infotainment based on enhanced OMAP™ architecture integrated on a 28-nm
CMOS process technology.
These guidelines first focus on designing a robust Power Delivery Network (PDN) which is essential to
achieve the desirable high performance processing available on Device. The general principles and stepby-step approach for implementing good power integrity (PI) with specific requirements will be described
for the key Device power domains.
TI strongly believes that simulating a PCB’s proposed PDN is required for first pass PCB design success.
Key Device processor high-current power domains need to be evaluated for Power Rail IR Drop,
Decoupling Capacitor Loop-Inductance and Power Rail Target Impedance. Only then can a PCB’s PDN
performance be truly accessed by comparing these model PI parameters vs. TI’s recommended values.
Ultimately for any high-volume product, TI recommends conducting a "Processor PDN Validation" test on
prototype PCBs across processor "split lots" to verify PDN robustness meets desired performance goals
for each customer’s worst-case scenario. Please contact your TI representative to receive guidance on
PDN PI modeling and validation testing.
Likewise, the methodology and requirements needed to route Device high-speed, differential interfaces ,
single-ended interfaces (i.e. DDR3, QSPI) and general purpose interfaces using LVCMOS drivers that
meet timing requirements while minimizing signal integrity (SI) distortions on the PCB’s signaling traces.
Signal trace lengths and flight times are aligned with FR-4 standard specification for PCBs.
Several different PCB layout stack-up examples have been presented to illustrate a typical number of
layers, signal assignments and controlled impedance requirements. Different Device interface signals
demand more or less complexity for routing and controlled impedance stack-ups. Optimizing the PCB’s
PDN stack-up needs with all of these different types of signal interfaces will ultimately determine the final
layer count and layer assignments in each customer’s PCB design.
This guideline must be used as a supplement in complement to TI’s Application Processor, Power
Management IC (PMIC) and Audio Companion components along with other TI component technical
documentation (i.e. Technical Reference Manual, Data Manual, Data Sheets, Silicon Errata, Pin-Out
Spreadsheet, Application Notes, etc.).
NOTE
Notwithstanding any provision to the contrary, TI makes no warranty expressed, implied, or
statutory, including any implied warranty of merchantability of fitness for a specific purpose,
for customer boards. The data described in this appendix are intended as guidelines only.
NOTE
These PCB guidelines are in a draft maturity and consequently, are subject to change
depending on design verification testing conducted during IC development and validation.
Note also that any references to Application Processor’s ballout or pin muxing are subject to
change following the processor’s ballout maturity.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
203
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.1.1
www.ti.com
Initial Requirements and Guidelines
Unless otherwise specified, the characteristic impedance for single-ended interfaces is recommended to
be between 35 Ω and 65 Ω to minimize the overshoot or undershoot on far-end loads.
Characteristic impedance for differential interfaces must be routed as differential traces on the same layer.
The trace width and spacing must be chosen to yield the recommended differential impedance. For more
information see Section 7.5.1.
The PDN must be optimized for low trace resistance and low trace inductance for all high-current power
nets from PMIC to the device.
An external interface using a connector must be protected following the IEC61000-4-2 level 4 system
ESD.
7.2
Power Optimizations
This section describes the necessary steps for designing a robust Power Distribution Network (PDN):
• Section 7.2.1, Step 1: PCB Stack-up
• Section 7.2.2, Step 2: Physical Placement
• Section 7.2.3, Step 3: Static Analysis
• Section 7.2.4, Step 4: Frequency Analysis
7.2.1
Step 1: PCB Stack-up
The PCB stack-up (layer assignment) is an important factor in determining the optimal performance of the
power distribution system. An optimized PCB stack-up for higher power integrity performance can be
achieved by following these recommendations:
• Power and ground plane pairs must be closely coupled together. The capacitance formed between the
planes can decouple the power supply at high frequencies. Whenever possible, the power and ground
planes must be solid to provide continuous return path for return current.
• Use a thin dielectric between the power and ground plane pair. Capacitance is inversely proportional to
the separation of the plane pair. Minimizing the separation distance (the dielectric thickness)
maximizes the capacitance.
• Optimize the power and ground plane pair carrying high current supplies to key component power
domains as close as possible to the same surface where these components are placed (see Figure 71). This will help to minimize "loop inductance" encountered between supply decoupling capacitors and
component supply inputs and between power and ground plane pairs.
NOTE
1-2oz Cu weight for power / ground plane is preferred to enable better PCB heat spreading,
helping to reduce Processor junction temperatures. In addition, it is preferable to have the
power / ground planes be adjacent to the PCB surface on which the Processor is mounted.
204
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Capacitor
Trace
DIE
Package
Via
3
1
Power/Ground
2
Ground/Power
Note: 1. BGA via pair loop inductance
2. Power/Ground net spreading inductance
3. Capacitor trace inductance
Loop inductance
SPRS91v_PCB_STACKUP_01
Figure 7-1. Minimize Loop Inductance With Proper Layer Assignment
The placement of power and ground planes in the PCB stackup (determined by layer assignment) has a
significant impact on the parasitic inductances of power current path as shown in Figure 7-1. For this
reason, it is recommended to consider layer order in the early stages of the PCB PDN design cycle,
putting high-priority supplies in the top half of the stackup (assuming high load and priority components
are mounted on the top-side of PCB) and low-priority supplies in the bottom half of the stackup as shown
in the examples below (vias have parasitic inductances which impact the bottom layers more, so it is
advised to put the sensitive and high-priority power supplies on the top/same layers).
7.2.2
Step 2: Physical Placement
A critical step in designing an optimized PDN is that proper care must be taken to making sure that the
initial floor planning of the PCB layout is done with good power integrity design guidelines in mind. The
following points are important for optimizing a PCB’s PDN:
• Minimizing the physical distance between power sources and key high load components is the first
step toward optimization. Placing source and load components on the same side of the PCB is
desirable. This will minimize via inductance impact for high current loads and steps
• External trace routing between components must be as wide as possible. The wider the traces, the
lower the DC resistance and consequently the lower the static IR drop.
• Whenever possible for the internal layers (routing and plane), wide traces and copper area fills are
preferred for PDN layout. The routing of power nets in plane provide for more interplane capacitance
and improved high frequency performance of the PDN.
• Whenever possible, use a via to component pin/pad ratio of 1:1 or better (i.e. especially decoupling
capacitors, power inductors and current sensing resistors). Do not share vias among multiple
capacitors for connecting power supply and ground planes.
• Placement of vias must be as close as possible or even within a component’s solder pad if the PCB
technology you are using provides this capability.
• To avoid any "ampacity” issue – maximum current-carrying capacity of each transitional via should be
evaluated to determine the appropriate number of vias required to connect components.
Adding vias to bring the "via-to-pad” ratio to 1:1 will improve PDN performance.
• For noise sensitive power supplies (i.e. Phase Lock-Loops, analog signals like audio and video), a Gnd
shield can be used to isolate coplanar supplies that may have high step currents or high frequency
switching transitions from coupling into low-noise supplies.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
205
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
vdd_mpu
vss
vdd
SPRS91v_PCB_PHYS_05
Figure 7-2. Coplanar Shielding of Power Net Using Ground Guard-band
7.2.3
Step 3: Static Analysis
Delivering reliable power to circuits is always of critical importance because voltage drops (also known as
IR drops) can happen at every level within an electronic system, on-chip, within a package, and across the
board. Robust system performance can only be ensured by understanding how the system elements will
perform under typical stressful Use Cases. Therefore, it is a good practice to perform a Static or DC
Analysis.
Static or DC analysis and design methodology results in a PDN design that minimizes voltage or IR drops
across power and ground planes, traces and vias. This ensures the application processor’s internal
transistors will be operating within their specified voltage ranges for proper functionality. The amount of IR
drop that will be encounter is based upon amount power drawn for a desired Use Case and PCB trace
(widths, geometry and number of parallel traces) and via (size, type and number) characteristics.
Components that are distant from their power source are particularly susceptible to IR drop. Designs that
rely on battery power must minimize voltage drops to avoid unacceptable power loss that can negatively
impact system performance. Early assessments a PDN’s static (DC) performance helps to determine
basic power distribution parameters such as best system input power point, optimal PCB layer stackup,
and copper area needed for load currents.
The resistance Rs of a plane conductor
for a unit length and unit width is called
the surface resistivity (ohms per square).
L
r
1
=
σ ×t t
l
R = Rs ×
w
Rs =
W
t
SPRS91v_PCB_STATIC_01
Figure 7-3. Depiction of Sheet Resistivity and Resistance
Ohm’s Law (V = I × R) relates conduction current to voltage drop. At DC, the relation coefficient is a
constant and represents the resistance of the conductor. Even current carrying conductors will dissipate
power at high currents even though their resistance may be very small. Both voltage drop and power
dissipation are proportional to the resistance of the conductor.
Figure 7-4 shows a PCB-level static IR drop budget defined between the power management device
(PMIC) pins and the application processor’s balls when the PMIC is supplying power.
• It is highly recommended to physically place the PMIC as close as possible to the processor and on
the same side. The orientation of the PMIC vs. the processor should be aligned to minimize distance
for the highest current rail.
206
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
PCB
Static IR drop and Effective Resistance
Source Component
Load Component
BGA pad on PCB
SPRS906_PCB_STATIC_02
Figure 7-4. Static IR Drop Budget for PCB Only
The system-level IR drop budget is made up of three portions: on-chip, package, and PCB board. Static IR
or dc analysis/design methodology consists of designing the PDN such that the voltage drop (under dc
operating conditions) across power and ground pads of the transistors of the application processor device
is within a specified value of the nominal voltage for proper functionality of the device.
A PCB system-level voltage drop budget for proper device functionality is typically 1.5% of nominal
voltage. For a 1.35-V supply, this would be ≤20 mV.
To accurately analyze PCB static IR drop, the actual geometry of the PDN must be modeled properly and
simulated to accurately characterize long distribution paths, copper weight impacts, electro-migration
violations of current-carrying vias, and "Swiss-cheese” effects via placement has on power rails. It is
recommended to perform the following analyses:
• Lumped resistance/IR drop analysis
• Distributed resistance/IR drop analysis
NOTE
The PMIC companion device supporting Processor has been designed with voltage sensing
feedback loop capabilities that enable a remote sense of the SMPS output voltage at the
point of use.
The NOTE above means the SMPS feedback signals and returns must be routed across PCB and
connected to the Device input power ball for which a particular SMPS is supplying power. This feedback
loop provides compensation for some of the voltage drop encountered across the PDN within limits. As
such, the effective resistance of the PDN within this loop should be determined in order to optimize
voltage compensation loop performance. The resistance of two PDN segments are of interest: one from
the power inductor/bulk power filtering capacitor node to the Processor’s input power and second is the
entire PDN route from SMPS output pin/ball to the Processor input power.
In the following sections each methodology is described in detail and an example has been provided of
analysis flow that can be used by the PCB designer to validate compliance to the requirements on their
PCB PDN design.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
207
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.2.3.1
www.ti.com
PDN Resistance and IR Drop
Lumped methodology consists of grouping all of the power pins on both the PMIC (voltage source) and
processor (current sink) devices. Then the PMIC source is set to an expected Use Case voltage level and
the processor load has its Use Case current sink value set as well. Now the lumped/effective resistance
for the power rail trace/plane routes can be determine based upon the actual layout’s power rail etch wide,
shape, length, via count and placement Figure 7-5 illustrates the pin-grouping/lumped concept.
The lumped methodology consists of importing the PCB layout database (from Cadence Allegro tool or
any other layout design tool) into the static IR drop modeling and simulation tool of preference for the PCB
designer. This is followed by applying the correct PCB stack-up information (thickness, material
properties) of the PCB dielectric and metallization layers. The material properties of dielectric consist of
permittivity (Dk) and loss tangent (Df).
For the conductor layers, the correct conductivity needs to be programmed into the simulation tool. This is
followed by pin-grouping of the power and ground nets, and applying appropriate voltage/current sources.
The current and voltage information can be obtained from the power and voltage specifications of the
device under different operating conditions / Use Cases.
Sources
Multiport net
Sources
Branch
Grouped Power/Ground
pins to create 1 equivalent
resistive branch
Port/Pin
Sinks
Sinks
SPRS91v_PCB_PDN_01
Figure 7-5. Pin-grouping concept: Lumped and Distributed Methodologies
7.2.4
Step 4: Frequency Analysis
Delivering low noise voltage sources are very important to allowing a system to operate at the lowest
possible Operational Performance Point (OPP) for any one Use Case. An OPP is a combination of the
supply voltage level and clocking rate for key internal processor domains. A SCH and PCB designed to
provide low noise voltage supplies will then enable the processor to enter optimal OPPs for each Use
Case that in turn will minimize power dissipation and junction temperatures on-die. Therefore, it is a good
engineering practice to perform a Frequency Analysis over the key power domains.
Frequency analysis and design methodology results in a PDN design that minimizes transient noise
voltages at the processor’s input power balls. This allows the processor’s internal transistors to operate
near the minimum specified operating supply voltage levels. To accomplish this one must evaluate how a
voltage supply will change due to impedance variations over frequency. This analysis will focus on the
decoupling capacitor network (VDD_xxx and VSS/Gnd rails) at the load. Sufficient capacitance with a
distribution of self-resonant points will provide for an overall lower impedance vs frequency response for
each power domain.
Decoupling components that are distant from their load’s input power are susceptible to encountering
spreading loop inductance from the PCB design. Early analysis of each key power domain’s frequency
response helps to determine basic decoupling capacitor placement, optimal footprint, layer assignment,
and types needed for minimizing supply voltage noise/fluctuations due to switching and load current
transients.
NOTE
Evaluation of loop inductance values for decoupling capacitors placed ~300mils closer to the
load’s input power balls has shown an 18% reduction in loop inductance due to reduced
distance.
208
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Decoupling capacitors must be carefully placed in order to minimize loop inductance impact on supply
voltage transients. A real capacitor has characteristics not only of capacitance but also inductance and
resistance.
Figure 7-6 shows the parasitic model of a real capacitor. A real capacitor must be treated as an RLC
circuit with effective series resistance (ESR) and effective series inductance (ESL).
C
ESL
ESR
SPRS91v_PCB_FREQ_01
Figure 7-6. Characteristics of a Real Capacitor With ESL and ESR
The magnitude of the impedance of this series model is given as:
Z =
1 ö
æ
ESR 2 +ωESL
ç ωESL - ωC ÷
ø
è
2
where : w = 2π¦
SPRS91v_PCB_FREQ_02
Figure 7-7. Series Model Impedance Equation
Figure 7-8 shows the resonant frequency response of a typical capacitor with a self-resonant frequency of
55 MHz. The impedance of the capacitor is a combination of its series resistance and reactive capacitance
and inductance as shown in the equation above.
S-Parameter Magnitude
Job: GCM155R71E153KA55_15NF;
1.0e+01
1.0e+00
1.0e–01
1.0e–02
XC=1/ωC
XL=ωL
1.0e–03
Resonant frequency
(55 MHz) (minimum)
1.0e–04
1.00e–002
1.00e+000
1.00e+002
1.00e+004
1.00e+006
1.00e+008
Frequency (MHz)
SPRS91v_PCB_FREQ_03
Figure 7-8. Typical Impedance Profile of a Capacitor
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
209
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Because a capacitor has series inductance and resistance that impacts its effectiveness, it is important
that the following recommendations are adopted in placing capacitors on the PDN.
Wherever possible, mount the capacitor with the geometry that minimizes the mounting inductance and
resistance. This was shown earlier in Figure 7-1. The capacitor mounting inductance and resistance
values include the inductance and resistance of the pads, trace, and vias. Whenever possible, use
footprints that have the lowest inductance configuration as shown in Figure 7-9
The length of a trace used to connect a capacitor has a big impact on parasitic inductance and resistance
of the mounting. This trace must be as short and as wide as possible. wherever possible, minimize
distance to supply and Gnd vias by locating vias nearby or within the capacitor’s solder pad landing.
Further improvements can be made to the mounting by placing vias to the side of capacitor lands or
doubling the number of vias as shown in Figure 7-9. If the PCB manufacturing processes allow it and if
cost-effective, via-in-pad (VIP) geometries are strongly recommended.
In addition to mounting inductance and resistance associated with placing a capacitor on the PCB, the
effectiveness of a decoupling capacitor also depends on the spreading inductance and resistance that the
capacitor sees with respect to the load. The spreading inductance and resistance is strongly dependent on
the layer assignment in the PCB stack-up. Therefore, try to minimize X, Y and Z dimensions where the Z
is due to PCB thickness (as shown in Figure 7-9).
From left (highest inductance) to right (lowest inductance) the capacitor footprint types shown in Figure 79 are known as:
• 2-via, Skinny End Exit (2vSEE)
• 2-via, Wide End Exit (2vWEE)
• 2-via, Wide Side Exit (2vWSE)
• 4-via, Wide Side Exit (4vWSE)
• 2-via, In-Pad (2vIP)
Via
Via-in-pad
Pad
Trace
Mounting geometry for reduced inductance
SPRS91v_PCB_FREQ_04
Figure 7-9. Capacitor Placement Geometry for Improved Mounting Inductance
NOTE
Evaluation of loop inductance values for decoupling capacitor footprints 2vSEE (worst case)
vs 4vWSE (2nd best) has shown a 30% reduction in inductance when 4vWSE footprint was
used in place of 2vSEE.
Decoupling Capacitor (Dcap) Strategy:
210
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
1. Use lowest inductance footprint and trace connection scheme possible for given PCB technology and
layout area in order to minimize Dcap loop inductance to power pin as much as possible (see Figure 79).
2. Place Dcaps on "same-side” as component within their power plane outline to minimize "decoupling
loop inductance”. Target distance to power pin should be less than ~500mils depending upon PCB
layout characteristics (plane's layer assignment and solid nature). Use PI modeling CAD tool to verify
minimum inductance for top vs bottom-side placement.
3. Place Dcaps on "opposite-side” as component within their power plane outline if "same-side” is not
feasible or if distance to power pin is greater than ~500mils for top-side location. Use PI modeling CAD
tool to verify minimum inductance for top vs bottom-side placement.
4. Use minimum 10mil trace width for all voltage and gnd planes connections (i.e. Dcap pads, component
power pins, etc.).
5. Place all voltage and gnd plane vias "as close as possible” to point of use (i.e. Dcap pads, component
power pins, etc.).
6. Use a "Power/Gnd pad/pin to via” ratio of 1:1 whenever possible. Do not exceed 2:1 ratio for small
number of vias within restricted PCB areas (i.e. underneath BGA components).
Frequency analysis for the CORE power domain (vdd) has yielded the Impedance vs Frequency
responses shown in Section 7.3.7.2, vdd Example Analysis.
7.2.5
System ESD Generic Guidelines
7.2.5.1
System ESD Generic PCB Guideline
Protection devices must be placed close to the ESD source which means close to the connector. This
allows the device to subtract the energy associated with an ESD strike before it reaches the internal
circuitry of the application board.
To help minimize the residual voltage pulse that will be built-up at the protection device due to its nonzero
turn-on impedance, it is mandatory to route the ESD device with minimum stub length so that the lowresistive, low-inductive path from the signal to the ground is granted and not increasing the impedance
between signal and ground.
For ESD protection array being railed to a power supply when no decoupling capacitor is available in close
vicinity, consider using a decoupling capacitor (≥ 0.1 µF) tight to the VCC pin of the ESD protection. A
positive strike will be partially diverted to this capacitance resulting in a lower residual voltage pulse.
Ensure that there is sufficient metallization for the supply of signals at the interconnect side (VCC and
GND in Figure 7-10) from connector to external protection because the interconnect may see between 15A to 30-A current in a short period of time during the ESD event.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
211
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Bypass
capacitor
0.1 mf
(minimum)
Stub
inductance
Connector
Stub
inductance
Interconnection
inductance
vcc
Signal
VCC
VCC
Protected
circuit
Stub
inductance
Minimize such
inductance by
optimizing layout
ESD
strike
External
protection
Ground
inductance
Keep distance
between protected
circuit and external
protection
Signal
Keep external
protection closed by
connector
SPRS91v_PCB_ESD_01
Figure 7-10. Placement Recommendation for an ESD External Protection
NOTE
To ensure normal behavior of the ESD protection (unwanted leakage), it is better to ground
the ESD protection to the board ground rather than any local ground (example isolated shield
or audio ground).
7.2.5.2
•
•
•
•
•
•
•
•
212
Miscellaneous EMC Guidelines to Mitigate ESD Immunity
Avoid running critical signal traces (clocks, resets, interrupts, control signals, and so forth) near PCB
edges.
Add high frequency filtering: Decoupling capacitors close to the receivers rather than close to the
drivers to minimize ESD coupling.
Put a ground (guard) ring around the entire periphery of the PCB to act as a lightning rod.
Connect the guard ring to the PCB ground plane to provide a low impedance path for ESD-coupled
current on the ring.
Fill unused portions of the PCB with ground plane.
Minimize circuit loops between power and ground by using multilayer PCB with dedicated power and
ground planes.
Shield long line length (strip lines) to minimize radiated ESD.
Avoid running traces over split ground planes. It is better to use a bridge connecting the two planes in
one area.
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
BAD
BETTER
SPRS91v_PCB_EMC_01
•
7.2.5.3
Figure 7-11. Trace Examples
Always route signal traces and their associated ground returns as close to one another as possible to
minimize the loop area enclosed by current flow:
– At high frequencies current follows the path of least inductance.
– At low frequencies current flows through the path of least resistance.
ESD Protection System Design Consideration
ESD protection system design consideration is covered in of this document. The following are additional
considerations for ESD protection in a system.
• Metallic shielding for both ESD and EMI
• Chassis GND isolation from the board GND
• Air gap designed on board to absorb ESD energy
• Clamping diodes to absorb ESD energy
• Capacitors to divert ESD energy
• The use of external ESD components on the DP/DM lines may affect signal quality and are not
recommended.
7.2.6
EMI / EMC Issues Prevention
All high-speed digital integrated circuits can be sources of unwanted radiation, which can affect nearby
sensitive circuitry and cause the final product to have radiated emissions levels above the limits allowed
by the EMC regulations if some preventative steps are not taken.
Likewise, analog and digital circuits can be susceptible to interference from the outside world and picked
up by the circuitry interconnections.
To minimize the potential for EMI/EMC issues, the following guidelines are recommended to be followed.
7.2.6.1
Signal Bandwidth
To evaluate the frequency of a digital signal, an estimated rule of thumb is to consider its bandwidth fBW
with respect to its rise time, tR:
fBW ≈ 0.35 / tR
This frequency actually corresponds to the break point in the signal spectrum, where the harmonics start
to decay at 40 dB per decade instead of 20 dB per decade.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
213
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.2.6.2
www.ti.com
Signal Routing
7.2.6.2.1 Signal Routing—Sensitive Signals and Shielding
Keep radio frequency (RF) sensitive circuitry (like GPS receivers, GSM/WCDMA, Bluetooth/WLAN
transceivers, frequency modulation (FM) radio) away from high-speed ICs (the device, power and audio
manager, chargers, memories, and so forth) and ideally on the opposite side of the PCB. For improved
protection it is recommended to place these emission sources in a shield can. If the shield can have a
removable lid (two-piece shield), ensure there is low contact impedance between the fence and the lid.
Leave some space between the lid and the components under it to limit the high-frequency currents
induced in the lid. Limit the shield size to put any potential shield resonances above the frequencies of
interest; see Figure 7-8, Typical Impedance Profile of a Capacitor.
7.2.6.2.2 Signal Routing—Outer Layer Routing
In case there is a need to use the outer layers for routing outside of shielded areas, it is recommended to
route only static signals and ensure that these static signals do not carry any high-frequency components
(due to parasitic coupling with other signals). In case of long traces, make provision for a bypass capacitor
near the signal source.
Routing of high-frequency clock signals on outer layers, even for a short distance, is discouraged,
because their emissions energy is concentrated at the discrete harmonics and can become significant
even with poor radiators.
Coplanar shielding of traces on outer layers (placing ground near the sides of a track along its length) is
effective only if the distance between the trace sides and the ground is smaller that the trace height above
the ground reference plane. For modern multilayer PCBs this is often not possible, so coplanar shielding
will not be effective. Do not route high-frequency traces near the periphery of the PCB, as the lack of a
ground reference near the trace edges can increase EMI: see Section 7.2.6.3, Ground Guidelines.
7.2.6.3
Ground Guidelines
7.2.6.3.1 PCB Outer Layers
Ideally the areas on the top and bottom layers of the PCB that are not enclosed by a shield should be
filled with ground after the routing is completed and connected with an adequate number of vias to the
ground on the inner ground planes.
7.2.6.3.2 Metallic Frames
Ensure that all metallic parts are well connected to the PCB ground (like LCD screens metallic frames,
antennas reference planes, connector cages, flex cables grounds, and so forth). If using flex PCB ribbon
cables to bring high-frequency signals off the PCB, ensure they are adequately shielded (coaxial cables or
flex ribbons with a solid reference ground).
7.2.6.3.3 Connectors
For high-frequency signals going to connectors choose a fully shielded connector, if possible (for example,
SD card connectors). For signals going to external connectors or which are routed over long distances, it
is recommended to reduce their bandwidth by using low-pass filters (resistor, capacitor (RC) combinations
or lossy ferrite inductors). These filters will help to prevent emissions from the board and can also improve
the immunity from external disturbances.
7.2.6.3.4 Guard Ring on PCB Edges
The major advantage of a multilayer PCB with ground-plane is the ground return path below each and
every signal or power trace.
As shown in Figure 7-12 the field lines of the signal return to PCB ground as long as an infinite ground is
available.
214
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Traces near the PCB-edges do not have this infinite ground and therefore may radiate more than the
others. Thus, signals (clocks) or power traces (core power) identified to be critical must not be routed in
the vicinity of PCB edges, or, if not avoidable, must be accompanied by a guard ring on the PCB edge.
SPRS91v_PCB_EMC_02
Figure 7-12. Field Lines of a Signal Above Ground
Signal
Power
Ground
Signal
SPRS91v_PCB_EMC_03
Figure 7-13. Guard Ring Routing
The intention of the guard ring is that HF-energy, that otherwise would have been emitted from the PCB
edge, is reflected back into the board where it partially will be absorbed. For this purpose ground traces on
the borders of all layers (including power layer) must be applied as shown in Figure 7-13.
As these traces must have the same (HF–) potential as the ground plane they must be connected to the
ground plane at least every 10 mm.
7.2.6.3.5 Analog and Digital Ground
For the optimum solution, the AGND and the DGND planes must be connected together at the power
supply source in a same point. This ensures that both planes are at the same potential, while the transfer
of noise from the digital to the analog domain is minimized.
7.3
Core Power Domains
This section provides boundary conditions and theoretical background to be applied as a guide for
optimizing a PCB design. The decoupling capacitor and PDN characteristics tables shown below give
recommended capacitors and PCB parameters to be followed for schematic and PCB designs. Board
designs that meet the static and dynamic PDN characteristics shown in tables below will be aligned to the
expected PDN performance needed to optimize SoC performance.
7.3.1
General Constraints and Theory
•
•
Max PCB static/DC voltage drop (IRd) budget of 1.5% of supply voltage when using PMICs without
remote sensing as measured from PMIC’s power inductor and filter capacitor node to Processor input
including any ground return losses.
Max PCB static/DC voltage drop (IRd) budget can be relaxed to 7.5% of supply voltage when using
TI recommended PMICs with remote sensing at the load as measured from PMIC’s power inductor
and filter capacitor node to Device’s supply input including any ground return losses.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
215
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
•
•
•
•
•
216
www.ti.com
PMIC component DM and guidelines should be referenced for the following:
– Routing remote feedback sensing to optimize per each SMPS’s implementation
– Selecting power filtering capacitor values and PCB placement.
Max Total Effective Resistance (Reff) budget can range from 4 – 100mΩ for key Device power rails not
including ground returns depending upon maximum load currents and maximum DC voltage drop
budget (as discussed above).
Max Device supply input voltage difference budget of 5mV under max current loading shall be
maintained across all balls connected to a common power rail. This represents any voltage difference
that may exist between a remote sense point to any power input.
Max PCB Loop Inductance (LL) budget between Device’s power inputs and local bulk and high
frequency decoupling capacitors including ground returns should range from 0.4 – 2.5nH depending
upon maximum transient load currents.
Max PCB dynamic/AC peak-to-peak transient noise voltage budgets between PMIC and Device
including ground returns are as follows:
– +/-3% of nominal supply voltage for frequencies below the PMIC bandwidth (typ Fpmic ~
200kHz)
– +/-5% of nominal supply voltage for frequencies between Fpmic to Fpcb (typ 20 – 100MHz)
Max PCB Impedance (Z) vs Frequency (F) budget between Device’s power inputs and PMIC’s output
power filter node including ground return is determined by applying the Frequency Domain Target
Impedance Method to determine the PCB’s maximum frequency of interest (Fpcb). Ideally a properly
designed and decoupled PDN will exhibit smoothly increasing Z vs. F curve. There are 2 general
regions of interest as can be seen in Figure 7-14.
– 1st area is from DC (0Hz) up to Fpmic (typ a few 100 kHz) where a PMIC’s transient response
characteristic (i.e. Switching Freq, Compensation Loop BW) dominate. A PDN’s Z is typically very
low due to power filtering & bulk capacitor values when PDN has very low trace resistance (i.e.
good Reff performance). The goal is to maintain a smoothly increasing Z that is less than Zt1 over
this low frequency range. This will ensure that a max transient current event will not cause a
voltage drop more than the PMIC’s current step response can support (typ 3%).
– 2nd area is from Fpmic up to Fpcb (typ 20-100MHz) where a PCB’s inherent characteristics (i.e.
parasitic capacitance, planar spreading inductances) dominate. A PDN’s Z will naturally increase
with frequency. At frequencies between Fpmic up to Fpcb, the goal is to maintain a smoothly
increasing Z to be less than Zt2. This will ensue that the high frequency content of a max transient
current event will not cause a voltage drop to be more than 5% of the min supply voltage.
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Figure 7-14. PDN’s Target impedance
1.Voltage Rail Drop includes regulation accuracy, voltage distribution drops, and all dynamic events
such as transient noise, AC ripple, voltage dips etc.
2.Typical max transient current is defined as 50% of max current draw possible.
7.3.2
Voltage Decoupling
Recommended power supply decoupling capacitors main characteristics for commercial products whose
ambient temperature is not to exceed +85C are shown in table below:
Table 7-1. Commercial Applications Recommended Decoupling Capacitors Characteristics(1)(2)(3)
Value
Voltage
[V]
Package
Stability
Dielectric
Capacitan
ce
Tolerance
Temp
Range [°C]
Temp
Sensitivity
[%]
REFERENCE
22µF
6,3
0603
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM188R60J226MEA0L
10µF
4,0
0402
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM155R60G106ME44
4.7µF
6,3
0402
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM155R60J475ME95
2.2µF
6,3
0402
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM155R60J225ME95
1µF
6,3
0201
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM033R60J105MEA2
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
217
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 7-1. Commercial Applications Recommended Decoupling Capacitors
Characteristics(1)(2)(3) (continued)
Value
Voltage
[V]
Package
Stability
Dielectric
Capacitan
ce
Tolerance
Temp
Range [°C]
Temp
Sensitivity
[%]
REFERENCE
470nF
6,3
0201
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM033R60G474ME90
220nF
6,3
0201
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM033R60J224ME90
100nF
6,3
0201
Class 2
X5R
- / + 20%
-55 to + 85
- / + 15
GRM033R60J104ME19
(1) Minimum value for each PCB capacitor: 100 nF.
(2) Among the different capacitors, 470 nF is recommended (not required) to filter at 5-MHz to 10-MHz frequency range.
(3) In comparison with the EIA Class 1 dielectrics, Class 2 dielectric capacitors tend to have severe temperature drift, high dependence of
capacitance on applied voltage, high voltage coefficient of dissipation factor, high frequency coefficient of dissipation, and problems with
aging due to gradual change of crystal structure. Aging causes gradual exponential loss of capacitance and decrease of dissipation
factor.
Recommended power supply decoupling capacitors main characteristics for automotive products are
shown in table below:
Table 7-2. Automotive Applications Recommended Decoupling Capacitors Characteristics
Value
Voltage [V]
Package
Stability
Dielectric
Capacitanc
Temp
e
Range [°C]
Tolerance
22µF
6,3
1206
Class 2
X7R
- / + 20%
(1)(2)
Temp
Sensitivity
[%]
REFERENCE
-55 to + 125
- / + 15
GCM31CR70J226ME23
10µF
6,3
0805
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM21BR70J106ME22
4.7µF
10
0805
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM21BC71A475MA73
2.2µF
6,3
0603
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM188R70J225ME22
1µF
16
0603
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM188R71C105MA64
470nF
16
0603
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM188R71C474MA55
220nF
25
0603
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM188L81C224MA37
100nF
16
0402
Class 2
X7R
- / + 20%
-55 to + 125
- / + 15
GCM155R71C104MA55
(1) Minimum value for each PCB capacitor: 100 nF.
(2) Among the different capacitors, 470 nF is recommended (not required) to filter at 5-MHz to 10-MHz frequency range.
7.3.3
Static PDN Analysis
One power net parameter derived from a PCB’s PDN static analysis is the Effective Resistance (Reff).
This is the total PCB power net routing resistance that is the sum of all the individual power net segments
used to deliver a supply voltage to the point of load and includes any series resistive elements (i.e. current
sensing resistor) that may be installed between the PMIC outputs and Processor inputs.
7.3.4
Dynamic PDN Analysis
Three power net parameters derived from a PCB’s PDN dynamic analysis are the Loop Inductance (LL),
Impedance (Z) and PCB Frequency of Interest (Fpcb).
• LL values shown are the recommended max PCB trace inductance between a decoupling capacitor’s
power supply and ground reference terminals when viewed from the decoupling capacitor with a
"theoretical shorted” applied across the Processor’s supply inputs to ground reference.
• Z values shown are the recommended max PCB trace impedances allowed between Fpmic up to Fpcb
frequency range that limits transient noise drops to no more than 5% of min supply voltage during max
transient current events.
• Fpcb (Frequency of Interest) is defined to be a power rail’s max frequency after which adding a
reasonable number of decoupling capacitors no longer significantly reduces the power rail impedance
below the desired impedance target (Zt2). This is due to the dominance of the PCB’s parasitic planar
spreading and internal package inductances.
218
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 7-3. Recommended PDN and Decoupling Characteristics
PDN Analysis:
Supply
Static
Dynamic
(1)(2)(3)(4)(5)
Number of Recommended Decoupling Capacitors per
Supply
Max
Impedance
[mΩ]
Frequency
range
of Interest
[MHz]
100
nF(6)
220
nF
470
nF
1μF
[mΩ]
Dec. Cap.
Max LL(8) (6)
[nH]
vdd_dspeve
33
2.5
54
≤20
6
1
1
1
1
1
vdd
83
2
87
≤50
6
1
1
1
1
1
vdds_ddr1,
vdds_ddr2,
vdds_ddr3
33
2.5
200
≤100
8
4
cap_vddram_cor
e1
N/A
6
N/A
N/A
1
cap_vddram_cor
e2
N/A
6
N/A
N/A
1
cap_vddram_dsp
eve
N/A
6
N/A
N/A
1
Max Reff
(7)
2
2.2 μF 4.7 μF 10 μF
22 μF
2
1
1
(1) For more information on peak-to-peak noise values, see the Recommended Operating Conditions table of the Electrical Characteristics
chapter.
(2) ESL must be as low as possible and must not exceed 0.5 nH.
(3) The PDN (Power Delivery Network) impedance characteristics are defined versus the device activity (that runs at different frequency)
based on the Recommended Operating Conditions table of the Electrical Characteristics chapter.
(4) The static drop requirement drives the maximum acceptable PCB resistance between the PMIC or the external SMPS and the processor
power balls.
(5) Assuming that the external SMPS (power IC) feedback sense is taken close to processor power balls.
(6) High-frequency (30 to 70MHz) PCB decoupling capacitors
(7) Maximum Total Reff from PMIC output to remote sensing feedback point located as close to the Device's point of load as possible.
(8) Maximum Loop Inductance for decoupling capacitor.
7.3.5
Power Supply Mapping
TPS65917 is a Power management IC (PMIC) that can be used for the Device design. TI is now
investigating an optimized solution for high power use cases so the TPS65917 is subject to change. An
alternate dual converter power solution using LP8732Q and LP8733Q are recommended. TI requires the
use of one of these PMIC solutions for the following reasons:
• TI has validated its use with the Device
• Board level margins including transient response and output accuracy are analyzed and optimized for
the entire system
• Support for power sequencing requirements (refer to Section 5.9.3 Power Sequencing)
• Support for Adaptive Voltage Scaling (AVS) Class 0 requirements, including TI provided software
It is possible that some voltage domains on the device are unused in some systems. In such cases, to
ensure device reliability, it is still required that the supply pins for the specific voltage domains are
connected to some core power supply output.
These unused supplies though can be combined with any of the core supplies that are used (active) in the
system. e.g. if IVA and GPU domains are not used, they can be combined with the CORE domain,
thereby having a single power supply driving the combined CORE, IVA and GPU domains.
For the combined rail, the following relaxations do apply:
• The AVS voltage of active rail in the combined rail needs to be used to set the power supply
• The decoupling capacitance should be set according to the active rail in the combined rail
Whenever we allow for combining of rails mapped on any of the SMPSes, the PDN guidelines that are the
most stringent of the rails combined should be implemented for the particular supply rail.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
219
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 7-4 illustrates the approved and validated power supply connections to the Device for the SMPS
outputs of the TPS65917 and LP8732 combined with LP8733 PMICs.
Table 7-4. Power Supply Connections
TPS65917
Dual Converter Solution
Valid Combination 1:
SMPS1
LP8733Q Buck0
vdd_dspeve
SMPS2
LP8733Q Buck1
vdd
SMPS3
LP8732Q Buck0
vdds18v, vdds18v_ddr[3:1], vddshv[6:1]
SMPS4
LP8732Q Buck1
vdds_ddr1, vdds_ddr2, vdds_ddr3
Table 7-5 illustrates the LP8733 and LP8732 OTP IDs required for DRA78x processor systems using
different DDR memory types.
Table 7-5. OTP ID Memory Types Support
DDR Type
7.3.6
LP8733Q
LP8732Q
OTP Version
OTP Version
DDR2
2A
2D
DDR3
2A
2F
DDR3L
2A
2E
DPLL Voltage Requirement
The voltage input to the DPLLs has a low noise requirement. Board designs should supply these voltage
inputs with a low noise LDO to ensure they are isolated from any potential digital switching noise. The
TPS65917 PMIC LDOLN output or LDO0 on LP8733Q dual power solution is specifically designed to
meet this low noise requirement.
NOTE
For more information about Input Voltage Sources, see DPLLs, DLLs Specifications
Table 7-6 present the voltage inputs that supply the DPLLs.
Table 7-6. Input Voltage Power Supplies for the DPLLs
7.3.7
POWER SUPPLY
DPLLs
vdda_per
DPLL_PER and PER HSDIVIDER analog power supply
vdda_ddr_dsp
DPLL_DSP, DPLL_DDR and DDR HSDIVIDER analog power supply
vdda_gmac_core
GMAC PLL, GMAC HSDIVIDER, DPLL_CORE and CORE HSDIVIDER analog power
supply
Example PCB Design
The following sections describe an example PCB design and its resulting PDN performance for the
vdd_dspeve key processor power domain.
NOTE
Materials presented in this section are based on generic PDN analysis on PCB boards and
are not specific to systems integrating the Device.
7.3.7.1
Example Stack-up
Layer Assignments:
220
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
•
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Layer Top: Signal and Segmented Power Plane
– Processor and PMIC components placed on Top-side
Layer 2: Gnd Plane1
Layer 3: Signals
Layer n: Power Plane1
Layer n+1: Power Plane 2
Layer n+2: Signal
Layer n+3: Gnd Plane2
Layer Bottom: Signal and Segmented Power Planes
– Decoupling caps, etc.
Via Technology: Through-hole
Copper Weight:
• ½ oz for all signal layers.
• 1-2oz for all power plane for improved PCB heat spreading.
7.3.7.2
vdd_dspeve Example Analysis
Maximum acceptable PCB resistance (Reff) between the PMIC and Processor input power balls should not
exceed 33mΩ per Table 7-3 and (7).
Maximum decoupling capacitance loop inductance (LL) between Processor input power balls and
decoupling capacitances should not exceed 2.5nH per Table 7-3 and (7) (ESL NOT included).
Impedance target for key frequency of interest between Processor input power balls and PMIC’s SMPS
output power balls should not exceed 54mΩ per Table 7-3 and (7).
Table 7-7. Example PCB vdd_dspeve PI Analysis Summary
Parameter
Recommendation
OPP
OPP_NOM
Clocking Rate
500 MHz
Voltage Level
1V
Example PCB
1V
Max Current Draw
1A
1A
Max Effective Resistance: Power
Inductor Segment Total Reff
13 mΩ
11.4 mΩ
Max Loop Inductance
< 2.5 nH
0.73 - 1.58 nH
Impedance Target
54 mΩ for F < 20 MHz
28.8 mΩ for F < 20 MHz
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
221
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Figure 7-15 shows a PCB layout example and the resulting PI analysis results.
U1401
LP8733 PMIC
Buck0 (3A)
FB_VPO_S1_AVS
U5000
VDD_DSPEVE_AVS
FB_B0
(2)
DRA78x
L1402
Buck 0_SW
_
(22,23)
VPO_S1_SW
0.47uH, 4A, 2520
DFE252012PD-R47M
VDD_DSPEVE
VPO_S1_AVS
(P12, P11, M9, P9,
K8, L8, P8)
C5079, 5080, 5085,
5100, 5101, 5111
C1409
R1010
22uF, 6.3V, X7R, 1206
GCM31CR70J226ME23
10mOhm, 1210
INA226&
Power Bench
0.1uF, 16V, X7R, 0402
GCM155R71C104KA55
C5021
0.22uF, 25V, X7R, 0603
GCM188R71E224KA55
C5019
0.47uF, 16V, X7R, 0603
GCM188R71C474KA55
C5018
1.0uF, 16V, X7R, 0603
GCM188R71C105KA64
C5037
2.2uF, 6.3V, X5R, 0603
C1005X5R0J225M
C5030
4.7uF, 16V, X7R, 0805
GCM21BR71C475KA73
C5026
22uF, 6.3V, X7R, 1206
GCM31CR70J226ME23
SPRS975_PCB_CORE_02
Figure 7-15. vdd_dspeve Simplified SCH Diagram
Table 7-8. DCap Scheme
Vaule [uF]
Size
Qty
Capacitance [uF]
Cap Type: Automotive GCM series, X7R
22
1206
1
22
4.7
805
1
4.7
2.2
603
1
2.2
1
603
1
1
0.47
603
1
0.47
0.22
603
1
0.22
0.1
402
6
0.6
12
31.19
Totals
222
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
IR Drop: vdd_dspeve
Figure 7-16. vdd_dspeve Voltage/IR Drop [All Layers]
Dynamic analysis of this PCB design for the CORE power domain determined the vdd_dspeve decoupling
capacitor loop inductance and impedance vs frequency analysis shown below. As you can see, the loop
inductance values ranged from 0.68 –1.79nH and were less than maximum 2.0nH recommended.
Table 7-9. Decoupling Design Detail Summary
Cap Reference
Description
Loop Inductacne at
50MHz [nH]
Footprint Types
PCB Side
Distance to
Ball-Field [mils]
Value
Size
C5101
0.73
2vWEE
C5100
0.78
2vWEE
Bottom
82
0.1
0402
Bottom
107
0.1
0402
C5085
0.84
2vWEE
Bottom
C5019
1.09
4vWE
Top
35
0.1
0402
631
0.47
C5111
1.09
4vWE
Bottom
0603
681
0.1
0402
C5030
1.11
4vWE
C5037
1.11
4vWE
Top
738
4.7
0805
Top
563
2.2
C5018
1.14
0603
4vWE
Top
681
1
C5021
0603
1.17
4vWE
Top
761
0.22
0603
C5026
1.18
4vWE
Top
792
22
1206
C5079
1.32
4vWE
Bottom
542
0.1
0402
C5080
1.58
4vWE
Bottom
602
0.1
0402
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
223
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(1) Distances are wrt "middle of Ball Field", Ref pt between: U5000-M9 to middle of Dcap's power pad unless specifed
Figure 7-17 shows vdd_dspeve Impedance vs Frequency characteristics.
Figure 7-17. vdd_dspeve Impedance vs Frequency
7.4
7.4.1
Single-Ended Interfaces
General Routing Guidelines
The following paragraphs detail the routing guidelines that must be observed when routing the various
functional LVCMOS interfaces.
224
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Line spacing:
– For a line width equal to W, the spacing between two lines must be 2W, at least. This minimizes the
crosstalk between switching signals between the different lines. On the PCB, this is not achievable
everywhere (for example, when breaking signals out from the device package), but it is
recommended to follow this rule as much as possible. When violating this guideline, minimize the
length of the traces running parallel to each other (see Figure 7-18).
W
D+
S = 2 W = 200 µm
SPRS91v_PCB_SE_GND_01
•
•
•
7.4.2
Figure 7-18. Ground Guard Illustration
Length matching (unless otherwise specified):
– For bus or traces at frequencies less than 10 MHz, the trace length matching (maximum length
difference between the longest and the shortest lines) must be less than 25 mm.
– For bus or traces at frequencies greater than 10 MHz, the trace length matching (maximum length
difference between the longest and the shortest lines) must be less than 2.5 mm.
Characteristic impedance
– Unless otherwise specified, the characteristic impedance for single-ended interfaces is
recommended to be between 35-Ω and 65-Ω.
Multiple peripheral support
– For interfaces where multiple peripherals have to be supported in the star topology, the length of
each branch has to be balanced. Before closing the PCB design, it is highly recommended to verify
signal integrity based on simulations including actual PCB extraction.
QSPI Board Design and Layout Guidelines
The following section details the routing guidelines that must be observed when routing the QSPI
interfaces.
7.4.2.1
•
•
•
•
•
If QSPI is operated in Mode 0 (POL=0, PHA=0):
The qspi1_sclk output signal must be looped back into the qspi1_rtclk input.
The signal propagation delay from the qspi1_sclk ball to the QSPI device CLK input pin (A to C) must
be approximately equal to the signal propagation delay from the QSPI device CLK pin to the
qspi1_rtclk ball (C to D).
The signal propagation delay from the QSPI device CLK pin to the qspi1_rtclk ball (C to D) must be
approximately equal to the signal propagation delay of the control and data signals between the QSPI
device and the SoC device (E to F, or F to E).
The signal propagation delay from the qspi1_sclk signal to the series terminators (R2 = 10 Ω) near the
QSPI device must be < 450pS (~7cm as stripline or ~8cm as microstrip)
50 Ω PCB routing is recommended along with series terminations, as shown in Figure 7-19.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
225
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
•
www.ti.com
Propagation delays and matching:
– A to C = C to D = E to F
– Matching skew: < 60pS
– A to B < 450pS
– B to C = as small as possible (<60pS)
Locate both R2 resistors
close together near the QSPI device
A
B
C
R1
R2
0 Ω*
10 Ω
R2
10 Ω
qspi1_sclk
QSPI device
clock input
D
qspi1_rtclk
E
F
QSPI device
IOx, CS#
qspi1_d[x], qspi1_cs[y]
SPRS906_PCB_QSPI_01
Figure 7-19. QSPI Interface High Level Schematic Mode 0 (POL=0, PHA=0)
NOTE
*0 Ω resistor (R1), located as close as possible to the qspi1_sclk pin, is placeholder for finetuning if needed.
7.4.2.2
•
•
•
•
•
226
If QSPI is operated in Mode 3 (POL=1, PHA=1):
The qspi1_rtclk input can be left unconnected.
The signal propagation delay from the qspi1_sclk signal to the QSPI device CLK pin (A to C) must be
approximately equal to the signal propagation delay of the control and data signals between the QSPI
device and the SoC device (E to F, or F to E).
The signal propagation delay from the qspi1_sclk signal to the QSPI device CLK pin (A to C) must be
< 450pS (~7cm as stripline or ~8cm as microstrip).
50 Ω PCB routing is recommended along with series terminations, as shown in Figure 7-20.
Propagation delays and matching:
– A to C = E to F.
– Matching skew: < 60Ps
– A to B < 450pS
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
A
C
R1
0 Ω*
qspi1_sclk
QSPI device
clock input
E
F
QSPI deice
IOx, CS#
qspi1_d[x], qspi1_cs[y]
SPRS91v_PCB_QSPI_01
Figure 7-20. QSPI Interface High Level Schematic Mode 3 (POL=1, PHA=1)
NOTE
*0 Ω resistor (R1), located as close as possible to the qspi1_sclk pin, is placeholder for finetuning if needed.
7.5
7.5.1
Differential Interfaces
General Routing Guidelines
To maximize signal integrity, proper routing techniques for differential signals are important for high-speed
designs. The following general routing guidelines describe the routing guidelines for differential lanes and
differential signals.
• As much as possible, no other high-frequency signals must be routed in close proximity to the
differential pair.
• Must be routed as differential traces on the same layer. The trace width and spacing must be chosen
to yield the differential impedance value recommended.
• Minimize external components on differential lanes (like external ESD, probe points).
• Through-hole pins are not recommended.
• Differential lanes mustn’t cross image planes (ground planes).
• No sharp bend on differential lanes.
• Number of vias on the differential pairs must be minimized, and identical on each line of the differential
pair. In case of multiple differential lanes in the same interface, all lines should have the same number
of vias.
• Shielded routing is to be promoted as much as possible (for instance, signals must be routed on
internal layers that are inside power and/or ground planes).
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
227
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.6
7.6.1
www.ti.com
Clock Routing Guidelines
Oscillator Ground Connection
Although the impedance of a ground plane is low it is, of course, not zero. Therefore, any noise current in
the ground plane causes a voltage drop in the ground. Figure 7-21 shows the grounding scheme for slow
(low frequency) clock generated from the internal oscillator.
Device
rtc_osc_xo
rtc_osc_xi_clkin32
Rd
(Optional)
Crystal
Cf2
Cf1
SPRS91v_PCB_CLK_OSC_02
Figure 7-21. Grounding Scheme for Low-Frequency Clock
Figure 7-22 shows the grounding scheme for high-frequency clock.
Device
xi_oscj
xo_oscj
Rd
(Optional)
Crystal
Cf1
vssa_oscj
Cf2
SPRS91v_PCB_CLK_OSC_03
(1)
j in *_osc = 0 or 1
Figure 7-22. Grounding Scheme for High-Frequency Clock
7.7
7.7.1
DDR2 Board Design and Layout Guidelines
DDR2 General Board Layout Guidelines
To
•
•
•
•
228
help ensure good signaling performance, consider the following board design guidelines:
Avoid crossing splits in the power plane.
Minimize Vref noise.
Use the widest trace that is practical between decoupling capacitors and memory module.
Maintain a single reference.
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
•
•
•
•
•
•
•
7.7.2
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Minimize ISI by keeping impedances matched.
Minimize crosstalk by isolating sensitive bits, such as strobes, and avoiding return path discontinuities.
Use proper low-pass filtering on the Vref pins.
Keep the stub length as short as possible.
Add additional spacing for on-clock and strobe nets to eliminate crosstalk.
Maintain a common ground reference for all bypass and decoupling capacitors.
Take into account the differences in propagation delays between microstrip and stripline nets when
evaluating timing constraints.
DDR2 Board Design and Layout Guidelines
7.7.2.1
Board Designs
TI only supports board designs that follow the guidelines outlined in this document. The switching
characteristics and the timing diagram for the DDR2 memory controller are shown in Table 7-10 and
Figure 7-23.
Table 7-10. Switching Characteristics Over Recommended Operating Conditions for DDR2 Memory
Controller
NO.
DDR21
PARAMETE
R
tc(DDR_CLK)
DESCRIPTION
MIN
MAX
UNIT
Cycle time, DDR_CLK
2.5
8
ns
1
ddrx_ck
PCB_DDR2_0
Figure 7-23. DDR2 Memory Controller Clock Timing
7.7.2.2
DDR2 Interface
This section provides the timing specification for the DDR2 interface as a PCB design and manufacturing
specification. The design rules constrain PCB trace length, PCB trace skew, signal integrity, cross-talk,
and signal timing. These rules, when followed, result in a reliable DDR2 memory system without the need
for a complex timing closure process. For more information regarding the guidelines for using this DDR2
specification, see the Understanding TI’s PCB Routing Rule-Based DDR Timing Specification Application
Report (Literature Number: SPRAAV0).
7.7.2.2.1 DDR2 Interface Schematic
Figure 7-24 shows the DDR2 interface schematic for a x32 DDR2 memory system. In Figure 7-25 the x16
DDR2 system schematic is identical except that the high-word DDR2 device is deleted.
When not using all or part of a DDR2 interface, the proper method of handling the unused pins is to tie off
the ddrx_dqsi pins to ground via a 1k-Ω resistor and to tie off the ddrx_dqsni pins to the corresponding
vdds_ddrx supply via a 1k-Ω resistor. This needs to be done for each byte not used. The vdds_ddrx and
ddrx_vref0 power supply pins need to be connected to their respective power supplies even if DDRx is not
being used. All other DDR interface pins can be left unconnected. Note that the supported modes for use
of the DDR EMIF are 32-bits wide, 16-bits wide, or not used.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
229
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
DDR2
ddrx_d0
DQ0
ddrx_d7
ddrx_dqm0
ddrx_dqs0
DQ7
DQM0
DQS0
ddrx_dqsn0
ddrx_d8
DQS0n
DQ8
ddrx_d15
ddrx_dqm1
ddrx_dqs1
DQ15
DQM1
DQS1
ddrx_dqsn1
DQS1n
ddrx_odt0
ODT
ddrx_d16
DQ16
ddrx_d23
ddrx_dqm2
ddrx_dqs2
ddrx_dqsn2
ddrx_d24
DQ23
DQM2
DQS2
DQS2n
DQ24
ddrx_d31
ddrx_dqm3
ddrx_dqs3
ddrx_dqsn3
DQ31
DQM3
DQS3
DQS3n
ddrx_ba0
BA0
ddrx_ba2
ddrx_a0
BA2
A0
ddrx_a14
ddrx_csn0
A14
CS
ddrx_casn
ddrx_rasn
CAS
ddrx_wen
ddrx_cke
ddrx_ck
WE
CKE
CK
CK
vdds_ddrx
RAS
ddrx_nck
0.1 µF
VREF
1 K Ω 1%
VREF
0.1 µF
ddrx_rst
(A)
1 K Ω 1%
NC
PCB_DDR2_1
A.
B.
vdds_ddrx is the power supply for the DDR2 memories and the Device DDR2 interface.
One of these capacitors can be eliminated if the divider and its capacitors are placed near a VREF pin.
Figure 7-24. 32-Bit DDR2 High-Level Schematic
230
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DDR2
ddrx_d0
DQ0
ddrx_d7
ddrx_dqm0
ddrx_dqs0
DQ7
LDM
LDQS
ddrx_dqsn0
ddrx_d8
LDQS
DQ8
ddrx_d15
ddrx_dqm1
ddrx_dqs1
ddrx_dqsn1
ddrx_odt0
DQ15
UDM
UDQS
UDQS
ODT
ddrx_d16
ddrx_d23
ddrx_dqm2
NC
NC
NC 1 KΩ
vdds_ddrx
(A)
ddrx_dqsn2
ddrx_dqs2
ddrx_d24
NC 1 KΩ
ddrx_d31
ddrx_dqm3
ddrx_dqsn3
ddrx_dqs3
NC
NC 1 KΩ
vdds_ddrx
(A)
1 KΩ
ddrx_ba0
NC
BA0
ddrx_ba2
ddrx_a0
BA2
A0
ddrx_a14
ddrx_csn0
A14
CS
ddrx_casn
ddrx_rasn
CAS
vdds_ddrx
RAS
WE
CKE
CK
CK
ddrx_wen
ddrx_cke
ddrx_ck
ddrx_nck
0.1 µF
VREF
1 K Ω 1%
VREF
0.1 µF
ddrx_rst
(A)
1 K Ω 1%
NC
PCB_DDR2_2
A.
B.
vdds_ddrx is the power supply for the DDR2 memories and the Device DDR2 interface.
One of these capacitors can be eliminated if the divider and its capacitors are placed near a VREF pin.
Figure 7-25. 16-Bit DDR2 High-Level Schematic
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
231
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
7.7.2.2.2 Compatible JEDEC DDR2 Devices
Table 7-11 shows the parameters of the JEDEC DDR2 devices that are compatible with this interface.
Generally, the DDR2 interface is compatible with x16/x32 DDR2-800 speed grade DDR2 devices.
Table 7-11. Compatible JEDEC DDR2 Devices (Per Interface)
NO.
PARAMETER
MIN
MAX
UNIT
CJ21
JEDEC DDR2 device speed grade(1)
CJ22
JEDEC DDR2 device bit width
x16
x32
Bits
CJ23
JEDEC DDR2 device count(2)
1
1
Devices
DDR2-800
(1) Higher DDR2 speed grades are supported due to inherent JEDEC DDR2 backwards compatibility.
(2) One DDR2 device is used for a 16-bit DDR2 and 32-bit DDR2 memory system.
7.7.2.2.3 PCB Stackup
The minimum stackup required for routing the Device is a six-layer stackup as shown in Table 7-12.
Additional layers may be added to the PCB stackup to accommodate other circuitry or to reduce the size
of the PCB footprint.
Table 7-12. Minimum PCB Stackup
232
LAYER
TYPE
DESCRIPTION
1
Signal
External Routing
2
Plane
Ground
3
Plane
Power
4
Signal
Internal routing
5
Plane
Ground
6
Signal
External Routing
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Complete stackup specifications are provided in Table 7-13.
Table 7-13. PCB Stackup Specifications
NO.
PARAMETER
MIN
PS21
PCB routing/plane layers
6
PS22
Signal routing layers
3
PS23
Full ground reference layers under DDR2 routing region(1)
1
PS24
Full vdds_ddrx power reference layers under the DDR2 routing
region(1)
1
PS25
Number of reference plane cuts allowed within DDR routing region(2)
TYP
PS26
Number of layers between DDR2 routing layer and reference plane
PS27
PCB routing feature size
4
PS28
PCB trace width, w
4
PS29
Single-ended impedance, Zo
PS210
Impedance control
UNIT
0
(3)
(4)
MAX
0
50
Z-5
Z
Mils
Mils
75
Ω
Z+5
Ω
(1) Ground reference layers are preferred over power reference layers. Be sure to include bypass caps to accommodate reference layer
return current as the trace routes switch routing layers. A full ground reference layer should be placed adjacent to each DDR routing
layer in PCB stack up.
(2) No traces should cross reference plane cuts within the DDR routing region. High-speed signal traces crossing reference plane cuts
create large return current paths which can lead to excessive crosstalk and EMI radiation.
(3) Reference planes are to be directly adjacent to the signal plane to minimize the size of the return current loop.
(4) Z is the nominal singled-ended impedance selected for the PCB specified by PS29.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
233
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
7.7.2.2.4 Placement
Figure 7-26 shows the required placement for the Device as well as the DDR2 devices. The dimensions
for this figure are defined in Table 7-14. The placement does not restrict the side of the PCB on which the
devices are mounted. The ultimate purpose of the placement is to limit the maximum trace lengths and
allow for proper routing space. For a 16-bit DDR memory system, the high-word DDR2 device is omitted
from the placement.
X1
DDR2
Memory
A1
DDR2 Controller
Y1
PCB_DDR2_3
Figure 7-26. Device and DDR2 Device Placement
Table 7-14. Placement Specifications DDR2
NO.
PARAMETER
MIN
MAX
UNIT
KOD21
X1
1100
Mils
KOD22
Y1
500
Mils
KOD24
DDR2 keepout region (1)
KOD25
Clearance from non-DDR2 signal to DDR2 keepout region (2) (3)
4
W
(1) DDR2 keepout region to encompass entire DDR2 routing area.
(2) Non-DDR2 signals allowed within DDR2 keepout region provided they are separated from DDR2 routing layers by a ground plane.
(3) If a device has more than one DDR controller, the signals from the other controller(s) are considered non-DDR2 and should be
separated by this specification.
234
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.7.2.2.5 DDR2 Keepout Region
The region of the PCB used for the DDR2 circuitry must be isolated from other signals. The DDR2
keepout region is defined for this purpose and is shown in Figure 7-27. The size of this region varies with
the placement and DDR routing. Additional clearances required for the keepout region are shown in
Table 7-14.
The region shown in Table 7-14 should encompass all the DDR2 circuitry and varies depending on
placement. Non-DDR2 signals should not be routed on the DDR signal layers within the DDR2 keepout
region. Non-DDR2 signals may be routed in the region, provided they are routed on layers separated from
DDR2 signal layers by a ground layer. No breaks should be allowed in the reference ground layers in this
region. In addition, the vdds_ddrx power plane should cover the entire keepout region. Routes for the two
DDR interfaces must be separated by at least 4x; the more separation, the better.
DDR2 Controller
DDR2 Device
DDR2 Controller
A1
Device
PCB_DDR2_4
Figure 7-27. DDR2 Keepout Region
7.7.2.2.6 Bulk Bypass Capacitors
Bulk bypass capacitors are required for moderate speed bypassing of the DDR2 and other circuitry.
Table 7-15 contains the minimum numbers and capacitance required for the bulk bypass capacitors. Note
that this table only covers the bypass needs of the DDR2 interfaces and DDR2 device. Additional bulk
bypass capacitance may be needed for other circuitry.
Table 7-15. Bulk Bypass Capacitors
NO.
PARAMETER
BC21
vdds_ddrx bulk bypass capacitor (≥1µF) count
BC22
vdds_ddrx bulk bypass total capacitance
MIN
(1)
TYP
MAX
UNIT
10
Devices
50
μF
(1) These devices should be placed near the devices they are bypassing, but preference should be given to the placement of the highspeed (HS) bypass capacitors and DDR2 signal routing.
7.7.2.2.7 High-Speed Bypass Capacitors
TI recommends that a PDN/power integrity analysis is performed to ensure that capacitor selection and
placement is optimal for a given implementation. This section provides guidelines that can serve as a
good starting point.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
235
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
High-speed (HS) bypass capacitors are critical for proper DDR2 interface operation. It is particularly
important to minimize the parasitic series inductance of the HS bypass capacitors, processor/DDR power,
and processor/DDR ground connections. Table 7-16 contains the specification for the HS bypass
capacitors as well as for the power connections on the PCB. Generally speaking, it is good to:
1. Fit as many HS bypass capacitors as possible.
2. HS bypass capacitor value is < 1µF
3. Minimize the distance from the bypass cap to the pins/balls being bypassed.
4. Use the smallest physical sized capacitors possible with the highest capacitance readily available.
5. Connect the bypass capacitor pads to their vias using the widest traces possible and using the largest
hole size via possible.
6. Minimize via sharing. Note the limites on via sharing shown in Table 7-16.
Table 7-16. High-Speed Bypass Capacitors
NO.
PARAMETER
MIN
HS21
HS bypass capacitor package size(1)
HS22
Distance, HS bypass capacitor to processor being bypassed(2)(3)(4)
Processor HS bypass capacitor count
HS24
Processor HS bypass capacitor total capacitance per vdds_ddrx rail
HS25
Number of connection vias for each device power/ground ball per
vdds_ddrx rail (5)
HS26
Trace length from device power/ground ball to connection via(2)
MAX
UNIT
0402
10 Mils
400(12)
(12)
HS23
TYP
0201
12
(11)
3.4
(12)
Vias
35
HS27
Distance, HS bypass capacitor to DDR device being bypassed
HS28
Number of connection vias for each HS capacitor(8)(9)
4
HS29
DDR2 device HS bypass capacitor count(7)
12
HS210
DDR2 device HS bypass capacitor total capacitance
HS211
Trace length from bypass capacitor connect to connection via(2)(9)
HS212
Number of connection vias for each DDR2 device power/ground
ball(10)
HS213
Trace length from DDR2 device power/ground ball to connection
via(2)(8)
μF
1
(6)
(7)
Mils
Devices
70
Mils
150
Mils
(14)
Vias
(13)
Devices
0.85
μF
35
100
1
Mils
Vias
35
60
Mils
(1) LxW, 10-mil units, that is, a 0402 is a 40x20-mil surface-mount capacitor.
(2) Closer/shorter is better.
(3) Measured from the nearest processor power/ground ball to the center of the capacitor package.
(4) Three of these capacitors should be located underneath the processor, between the cluster of vdds_ddrx balls and ground balls,
between the DDR interfaces on the package.
(5) See the Via Channel™ escape for the processor package.
(6) Measured from the DDR2 device power/ground ball to the center of the capacitor package.
(7) Per DDR2 device.
(8) An additional HS bypass capacitor can share the connection vias only if it is mounted on the opposite side of the board. No sharing of
vias is permitted on the same side of the board.
(9) An HS bypass capacitor may share a via with a DDR device mounted on the same side of the PCB. A wide trace should be used for the
connection and the length from the capacitor pad to the DDR device pad should be less than 150 mils.
(10) Up to a total of two pairs of DDR power/ground balls may share a via.
(11) The capacitor recommendations in this data manual reflect only the needs of this processor. Please see the memory vendor’s
guidelines for determining the appropriate decoupling capacitor arrangement for the memory device itself.
(12) For more information, see Section 7.3, Core Power Domains
(13) For more information refer to DDR2 specification.
(14) Preferred configuration is 4 vias: 2 to power and 2 to ground.
236
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.7.2.2.8 Net Classes
Table 7-17 lists the clock net classes for the DDR2 interface. Table 7-18 lists the signal net classes, and
associated clock net classes, for the signals in the DDR2 interface. These net classes are used for the
termination and routing rules that follow.
Table 7-17. Clock Net Class Definitions
CLOCK NET CLASS
CK
PIN NAMES
ddrx_ck / ddrx_nck
DQS0
ddrx_dqs0 / ddrx_dqsn0
DQS1
ddrx_dqs1 / ddrx_dqsn1
(1)
ddrx_dqs2 / ddrx_dqsn2
DQS3(1)
ddrx_dqs3 / ddrx_dqsn3
DQS2
(1) Only used on 32-bit wide DDR2 memory systems.
Table 7-18. Signal Net Class Definitions
SIGNAL NET CLASS
ASSOCIATED CLOCK
NET CLASS
ADDR_CTRL
CK
DQ0
DQS0
ddrx_d[7:0], ddrx_dqm0
DQ1
DQS1
ddrx_d[15:8], ddrx_dqm1
DQ2(1)
DQS2
ddrx_d[23:16], ddrx_dqm2
DQ3(1)
DQS3
ddrx_d[31:24], ddrx_dqm3
PIN NAMES
ddrx_ba[2:0], ddrx_a[14:0], ddrx_csnj, ddrx_casn, ddrx_rasn, ddrx_wen,
ddrx_cke, ddrx_odti
(1) Only used on 32-bit wide DDR2 memory systems.
7.7.2.2.9 DDR2 Signal Termination
Signal terminators are NOT required in CK, ADDR_CTRL, and DATA net classes. Serial terminators may
be used to reduce EMI risk; however, serial terminations are the only type permitted. ODTs are integrated
on the data byte net classes. They should be enabled to ensure signal integrity. Table 7-19 shows the
specifications for the series terminators.
Table 7-19. DDR2 Signal Terminations
MAX
UNIT
ST21
NO.
CK net class(1)(2)
0
10
Ω
ST22
ADDR_CTRL net class(1) (2)(3)(4)
0
Zo
Ω
0
Zo
Ω
ST23
PARAMETER
Data byte net classes (DQS0-DQS3, DQ0-DQ3)
MIN
(5)
TYP
(1) Only series termination is permitted, parallel or SST specifically disallowed on board.
(2) Only required for EMI reduction.
(3) Terminator values larger than typical only recommended to address EMI issues.
(4) Termination value should be uniform across net class.
(5) No external terminations allowed for data byte net classes ODT is to be used.
7.7.2.2.10 VREF Routing
VREF (ddrx_vref0) is used as a reference by the input buffers of the DDR2 memories. VREF is intended
to be half the DDR2 power supply voltage and should be created using a resistive divider as shown in
Figure 7-25. Other methods of creating VREF are not recommended. Figure 7-28 shows the layout
guidelines for VREF.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
237
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
VREF Bypass Capacitor
0.1 µF
VREF Nominal Max Trace
width is 20 mils
(A)
DDR2 Device
vdds_ddrx
www.ti.com
1 K Ω 1%
VREF
0.1 µF
DDR2 Controller
1 K Ω 1%
Neck down to minimum in BGA escape
regions is acceptable. Narrowing to
accomodate via congestion for short
distances is also acceptable. Best
performance is obtained if the width
of VREF is maximized.
A. vdds_ddrx is the power supply for the DDR2 memories and the Device DDR2 interface.
PCB_DDR2_5
Figure 7-28. VREF Routing and Topology
7.7.2.3
DDR2 CK and ADDR_CTRL Routing
DDR2 Device
Figure 7-29 shows the topology of the routing for the CK and ADDR_CTRL net classes. The route is a
point to point connection with required skew matching.
DDR2 Controller
A’
PCB_DDR2_6
Figure 7-29. CK and ADDR_CTRL Routing and Topology
Table 7-20. CK and ADDR_CTRL Routing Specification
NO.
238
PARAMETER
RSC21
Center-to-center ddrx_ck - ddrx_nck spacing
RSC22
ddrx_ck / ddrx_nck skew
MIN
MAX
UNIT
2w
5
ps
CK/ADDR_CTRL trace length(3)
680
ps
RSC27
ADDR_CTRL-to-CK skew mismatch
25
ps
RSC28
ADDR_CTRL-to-ADDR_CTRL skew mismatch
25
ps
RSC29
Center-to-center ADDR_CTRL to other DDR2 trace spacing(2)
(2)
RSC25
Center-to-center CK to other DDR2 trace spacing
RSC26
Applications, Implementation, and Layout
4w
4w
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 7-20. CK and ADDR_CTRL Routing Specification (continued)
NO.
RSC210
PARAMETER
MIN
Center-to-center ADDR_CTRL to other ADDR_CTRL trace spacing(2)
MAX
UNIT
3w
(1) Series terminator, if used, should be located closest to the Device.
(2) Center-to-center spacing is allowed to fall to minimum 2w for up to 500 mils of routed length to accommodate BGA escape and routing
congestion.
(3) This is the longest routing length of the CK and ADDR_CTRL net classes.
Figure 7-30 shows the topology and routing for the DQS and DQ net classes; the routes are point to point.
Skew matching across bytes is not needed nor recommended. The termination resistor should be placed
near the processor.
DDR2 Device
E0
E1
E2
DDR2 Controller
E3
PCB_DDR2_7
Figure 7-30. DQS and DQ Routing and Topology
Table 7-21. DQS and DQ Routing Specification
NO.
PARAMETER
MAX
UNIT
5
ps
DQS/DQ trace length (2)(3)(4)
325
ps
RSDQ25
DQ-to-DQS skew mismatch(2)(3)(4)
10
ps
RSDQ26
DQ-to-DQ skew mismatch(2)(3)(4)
10
ps
1
Vias
25
ps
RSDQ21
Center-to-center DQS-DQSn spacing in E0|E1|E2|E3
RSDQ22
DQS-DQSn skew in E0|E1|E2|E3
RSDQ23
Center-to-center DQS to other DDR2 trace spacing(1)
RSDQ24
MIN
2w
4w
(2)(3)(4)
RSDQ27
DQ-to-DQ/DQS via count mismatch
RSDQ28
Center-to-center DQ to other DDR2 trace spacing(1)(5)
4w
RSDQ29
Center-to-center DQ to other DQ trace spacing(1)(6)(7)
3w
RSDQ210
DQ/DQS E skew mismatch
(2)(3)(4)
(1) Center-to-center spacing is allowed to fall to minimum 2w for up to 500 mils of routed length to accommodate BGA escape and routing
congestion.
(2) A 16-bit DDR memory system has two sets of data net classes; one for data byte 0, and one for data byte 1, each with an associated
DQS (2 DQSs) per DDR EMIF used.
(3) A 32-bit DDR memory system has four sets of data net classes; one each for data bytes 0 through 3, and each associated with a DQS
(4 DQSs) per DDR EMIF used.
(4) There is no need, and it is not recommended, to skew match across data bytes; that is, from DQS0 and data byte 0 to DQS1 and data
byte1.
(5) DQs from other DQS domains are considered other DDR2 trace.
(6) DQs from other data bytes are considered other DDR2 trace.
(7) This is the longest routing distance of each of the DQS and DQ net classes.
7.8
DDR3 Board Design and Layout Guidelines
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
239
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.8.1
www.ti.com
DDR3 General Board Layout Guidelines
To
•
•
•
•
•
•
•
•
•
7.8.2
help ensure good signaling performance, consider the following board design guidelines:
Avoid crossing splits in the power plane.
Use the widest trace that is practical between decoupling capacitors and memory module.
Maintain a single reference
Minimize ISI by keeping impedances matched.
Minimize crosstalk by isolating sensitive bits, such as strobes, and avoiding return path discontinuities.
Keep the stub length as short as possible.
Add additional spacing for on-clock and strobe nets to eliminate crosstalk.
Maintain a common ground reference for all bypass and decoupling capacitors.
Take into account the differences in propagation delays between microstrip and stripline nets when
evaluating timing constraints.
DDR3 Board Design and Layout Guidelines
7.8.2.1
Board Designs
TI only supports board designs using DDR3 memory that follow the guidelines in this document. The
switching characteristics and timing diagram for the DDR3 memory controller are shown in Table 7-22 and
Figure 7-31.
Table 7-22. Switching Characteristics Over Recommended Operating Conditions for DDR3 Memory
Controller
NO.
1
PARAMETER
tc(DDR_CLK)
MIN
Cycle time, DDR_CLK
1.875
MAX
UNIT
(1)
2.5
ns
(1) This is the absolute maximum the clock period can be. Actual maximum clock period may be limited by DDR3 speed grade and
operating frequency (see the DDR3 memory device data sheet).
1
DDR_CLK
SPRS91v_PCB_DDR3_01
Figure 7-31. DDR3 Memory Controller Clock Timing
7.8.2.2
DDR3 Device Combinations
There are several possible combinations of device counts and single- or dual-side mounting, Table 7-23
summarizes the supported device configurations.
Table 7-23. Supported DDR3 Device Combinations
240
NUMBER OF DDR3
DEVICES
DDR3 DEVICE WIDTH
(BITS)
ECC DEVICE WIDTH
(BITS)
MIRRORED?
DDR3 EMIF WIDTH
(BITS)
1
1x16
2
2x8
-
N
16
-
Y(1)
2
16
2x16
-
N
32
2
2x16
-
Y(1)
32
2
1x16
1x8
N
16
3
2x8
1x8
N
16
3
2x16
1x8
N
32
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(1) Two DDR3 devices are mirrored when one device is placed on the top of the board and the second device is placed on the bottom of
the board.
7.8.2.3
DDR3 Interface Schematic
7.8.2.3.1 32-Bit DDR3 Interface
The DDR3 interface schematic varies, depending upon the width of the DDR3 devices used and the width
of the bus used (16 or 32 bits). General connectivity is straightforward and very similar. 16-bit DDR
devices look like two 8-bit devices. Figure 7-32 and show the schematic connections for 32-bit interfaces
using x16 devices.
7.8.2.3.2 16-Bit DDR3 Interface
Note that the 16-bit wide interface schematic is practically identical to the 32-bit interface (see Figure 732); only the high-word DDR memories are removed and the unused DQS inputs are tied off.
When not using all or part of a DDR interface, the proper method of handling the unused pins is to tie off
the ddrx_dqsi pins to ground via a 1k-Ω resistor and to tie off the ddrx_dqsni pins to the corresponding
vdds_ddrx supply via a 1k-Ω resistor. This needs to be done for each byte not used. Although these
signals have internal pullups and pulldowns, external pullups and pulldowns provide additional protection
against external electrical noise causing activity on the signals.
The vdds_ddr and vdds18v_ddrx power supply pins need to be connected to their respective power
supplies even if upper data byte lanes are not being used. All other DDR interface pins can be left
unconnected. Note that the supported modes for use of the DDR EMIF are 32-bits wide, 16-bits wide, or
not used.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
241
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
32-bit DDR3 EMIF
16-Bit DDR3
Devices
ddrx_d31
DQ15
8
ddrx_d24
DQ8
ddrx_dqm3
ddrx_dqs3
ddrx_dqsn3
UDM
UDQS
UDQS
ddrx_d23
DQ7
8
ddrx_d16
D08
ddrx_dqm2
ddrx_dqs2
ddrx_dqsn2
LDM
LDQS
LDQS
ddrx_d15
DQ15
8
ddrx_d8
DQ8
ddrx_dqm1
ddrx_dqs1
ddrx_dqsn1
UDM
UDQS
UDQS
ddrx_d7
DQ7
8
ddrx_d0
DQ0
ddrx_dqm0
ddrx_dqs0
ddrx_dqsn0
LDM
LDQS
LDQS
ddrx_ck
ddrx_nck
ddrx_odt0
ddrx_csn0
ddrx_ba0
ddrx_ba1
ddrx_ba2
ddrx_a0
Zo
CK
CK
CK
CK
ODT
CS
BA0
BA1
BA2
ODT
CS
BA0
BA1
BA2
A0
A0
Zo
A15
A15
Zo
CAS
RAS
WE
CKE
RST
ZQ
VREFDQ
VREFCA
CAS
RAS
WE
CKE
RST
0.1 µF
DDR_1V5
Zo
DDR_VTT
16
ddrx_a15
ddrx_casn
ddrx_rasn
ddrx_wen
ddrx_cke
ddrx_rst
ZQ
0.1 µF
DDR_VREF
ZQ
VREFDQ
VREFCA
ZQ
0.1 µF
Zo
Termination is required. See terminator comments.
ZQ
Value determined according to the DDR memory device data sheet.
Figure 7-32. 32-Bit, One-Bank DDR3 Interface Schematic Using Two 16-Bit DDR3 Devices
242
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
7.8.2.4
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Compatible JEDEC DDR3 Devices
Table 7-24 shows the parameters of the JEDEC DDR3 devices that are compatible with this interface.
Generally, the DDR3 interface is compatible with DDR3-1066 devices in the x8 or x16 widths.
Table 7-24. Compatible JEDEC DDR3 Devices
N
O.
1
PARAMETER
CONDITION
JEDEC DDR3 device speed grade(1)
MIN
MAX
DDR clock rate = 400MHz
DDR3-800
DDR3-1600
400MHz< DDR clock rate ≤ 533MHz
DDR3-1066
DDR3-1600
UNIT
2
JEDEC DDR3 device bit width
x8
x16
Bits
3
JEDEC DDR3 device count(2)
1
3
Devices
(1) Refer to Table 7-22 Switching Characteristics Over Recommended Operating Conditions for DDR3 Memory Controller for the range of
supported DDR clock rates.
(2) For valid DDR3 device configurations and device counts, see Table 7-23 DDR3 Device Combinations.
7.8.2.5
PCB Stackup
The minimum stackup for routing the DDR3 interface is a six-layer stack up as shown in Table 7-25.
Additional layers may be added to the PCB stackup to accommodate other circuitry, enhance SI/EMI
performance, or to reduce the size of the PCB footprint. Complete stackup specifications are provided in
Table 7-26.
Table 7-25. Six-Layer PCB Stackup Suggestion
LAYER
TYPE
DESCRIPTION
1
Signal
Top routing mostly vertical
2
Plane
Ground
3
Plane
Split power plane
4
Plane
Split power plane or Internal routing
5
Plane
Ground
6
Signal
Bottom routing mostly horizontal
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
243
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 7-26. PCB Stackup Specifications
NO.
PARAMETER
MIN
PS1
PCB routing/plane layers
6
PS2
Signal routing layers
3
PS3
Full ground reference layers under DDR3 routing region(1)
TYP
MAX
1
(1)
PS4
Full 1.5-V power reference layers under the DDR3 routing region
PS5
Number of reference plane cuts allowed within DDR routing region(2)
0
PS6
Number of layers between DDR3 routing layer and reference plane(3)
0
PS7
PCB routing feature size
4
PS8
PCB trace width, w
4
PS9
Single-ended impedance, Zo
PS10
UNIT
1
50
(5)
Impedance control
Z-5
Z
Mils
Mils
75
Ω
Z+5
Ω
(1) Ground reference layers are preferred over power reference layers. Be sure to include bypass caps to accommodate reference layer
return current as the trace routes switch routing layers.
(2) No traces should cross reference plane cuts within the DDR routing region. High-speed signal traces crossing reference plane cuts
create large return current paths which can lead to excessive crosstalk and EMI radiation.
(3) Reference planes are to be directly adjacent to the signal plane to minimize the size of the return current loop.
(4) An 18-mil pad assumes Via Channel is the most economical BGA escape. A 20-mil pad may be used if additional layers are available
for power routing. An 18-mil pad is required for minimum layer count escape.
(5) Z is the nominal singled-ended impedance selected for the PCB specified by PS9.
7.8.2.6
Placement
Figure 7-33 shows the required placement for the processor as well as the DDR3 devices. The
dimensions for this figure are defined in Table 7-27. The placement does not restrict the side of the PCB
on which the devices are mounted. The ultimate purpose of the placement is to limit the maximum trace
lengths and allow for proper routing space. For a 16-bit DDR memory system, the high-word DDR3
devices are omitted from the placement.
x1
y2
DDR3
Controller
y2
Three Devices
SPRS91v_PCB_DDR3_04
Figure 7-33. Placement Specifications
244
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 7-27. Placement Specifications
MAX
UNIT
KOD31
No.
X1
PARAMETER
MIN
1700
Mils
KOD34
Y1
1800
Mils
KOD35
Y2
600
Mils
KOD36
DDR3 keepout
region(1)
KOD37
Clearance from nonDDR3 signal to
DDR3 keepout
region (2)(3)
4
W
(1) DDR3 keepout region to encompass entire DDR3 routing area.
(2) Non-DDR3 signals allowed within DDR3 keepout region provided they are separated from DDR3 routing layers by a ground plane.
(3) If a device has more than one DDR controller, the signals from the other controller(s) are considered non-DDR3 and should be
separated by this specification.
7.8.2.7
DDR3 Keepout Region
The region of the PCB used for DDR3 circuitry must be isolated from other signals. The DDR3 keepout
region is defined for this purpose and is shown in Figure 7-34. The size of this region varies with the
placement and DDR routing. Additional clearances required for the keepout region are shown in Table 727. Non-DDR3 signals should not be routed on the DDR signal layers within the DDR3 keepout region.
Non-DDR3 signals may be routed in the region, provided they are routed on layers separated from the
DDR signal layers by a ground layer. No breaks should be allowed in the reference ground layers in this
region. In addition, the 1.5-V DDR3 power plane should cover the entire keepout region. Also note that the
two signals from the DDR3 controller should be separated from each other by the specification in Table 727 (see KOD37).
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
245
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
DDR3 Keepout Region
DDR3
Controller
Three Devices
SPRS91v_PCB_DDR3_05
Figure 7-34. DDR3 Keepout Region
7.8.2.8
Bulk Bypass Capacitors
Bulk bypass capacitors are required for moderate speed bypassing of the DDR3 and other circuitry.
Table 7-28 contains the minimum numbers and capacitance required for the bulk bypass capacitors. Note
that this table only covers the bypass needs of the DDR3 controllers and DDR3 devices. Additional bulk
bypass capacitance may be needed for other circuitry.
246
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 7-28. Bulk Bypass Capacitors
NO.
PARAMETER
MIN
MAX
UNIT
1
vdds_ddrx bulk bypass capacitor count(1)
1
Devices
2
vdds_ddrx bulk bypass total capacitance
22
μF
(1) These devices should be placed near the devices they are bypassing, but preference should be given to the placement of the highspeed (HS) bypass capacitors and DDR3 signal routing.
7.8.2.9
High-Speed Bypass Capacitors
High-speed (HS) bypass capacitors are critcal for proper DDR3 interface operation. It is particularly
important to minimize the parasitic series inductance of the HS bypass capacitors, processor/DDR power,
and processor/DDR ground connections. Table 7-29 contains the specification for the HS bypass
capacitors as well as for the power connections on the PCB. Generally speaking, it is good to:
1. Fit as many HS bypass capacitors as possible.
2. Minimize the distance from the bypass cap to the pins/balls being bypassed.
3. Use the smallest physical sized capacitors possible with the highest capacitance readily available.
4. Connect the bypass capacitor pads to their vias using the widest traces possible and using the largest
hole size via possible.
5. Minimize via sharing. Note the limites on via sharing shown in Table 7-29.
Table 7-29. High-Speed Bypass Capacitors
NO.
PARAMETER
MIN
1
HS bypass capacitor package size(1)
2
Distance, HS bypass capacitor to processor being bypassed(2)(3)(4)
3
Processor HS bypass capacitor count per vdds_ddrx rail(12)
4
Processor HS bypass capacitor total capacitance per vdds_ddrx rail(12)
TYP
MAX
UNIT
0201
0402
10 Mils
400
See Table 7-3 and (11)
Mils
Devices
See Table 7-3 and (11)
μF
(5)
5
Number of connection vias for each device power/ground ball
6
Trace length from device power/ground ball to connection via(2)
7
Distance, HS bypass capacitor to DDR device being bypassed
8
DDR3 device HS bypass capacitor count(7)
9
DDR3 device HS bypass capacitor total capacitance(7)
Vias
35
(6)
(8)(9)
10
Number of connection vias for each HS capacitor
11
Trace length from bypass capacitor connect to connection via(2)(9)
12
Number of connection vias for each DDR3 device power/ground ball(10)
13
Trace length from DDR3 device power/ground ball to connection via(2)(8)
70
Mils
150
Mils
12
Devices
0.85
μF
2
Vias
35
100
1
Mils
Vias
35
60
Mils
(1) LxW, 10-mil units, that is, a 0402 is a 40x20-mil surface-mount capacitor.
(2) Closer/shorter is better.
(3) Measured from the nearest processor power/ground ball to the center of the capacitor package.
(4) Three of these capacitors should be located underneath the processor, between the cluster of DDR_1V5 balls and ground balls,
between the DDR interfaces on the package.
(5) See the Via Channel™ escape for the processor package.
(6) Measured from the DDR3 device power/ground ball to the center of the capacitor package.
(7) Per DDR3 device.
(8) An additional HS bypass capacitor can share the connection vias only if it is mounted on the opposite side of the board. No sharing of
vias is permitted on the same side of the board.
(9) An HS bypass capacitor may share a via with a DDR device mounted on the same side of the PCB. A wide trace should be used for the
connection and the length from the capacitor pad to the DDR device pad should be less than 150 mils.
(10) Up to a total of two pairs of DDR power/ground balls may share a via.
(11) The capacitor recommendations in this data manual reflect only the needs of this processor. Please see the memory vendor’s
guidelines for determining the appropriate decoupling capacitor arrangement for the memory device itself.
(12) For more information, see Section 7.3, Core Power Domains.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
247
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
7.8.2.9.1 Return Current Bypass Capacitors
Use additional bypass capacitors if the return current reference plane changes due to DDR3 signals
hopping from one signal layer to another. The bypass capacitor here provides a path for the return current
to hop planes along with the signal. As many of these return current bypass capacitors should be used as
possible. These are returns for signal current, the signal via size may be used for these capacitors.
7.8.2.10 Net Classes
Table 7-30 lists the clock net classes for the DDR3 interface. Table 7-31 lists the signal net classes, and
associated clock net classes, for signals in the DDR3 interface. These net classes are used for the
termination and routing rules that follow.
Table 7-30. Clock Net Class Definitions
CLOCK NET CLASS
CK
processor PIN NAMES
ddrx_ck/ddrx_nck
DQS0
ddrx_dqs0 / ddrx_dqsn0
DQS1
ddrx_dqs1 / ddrx_dqsn1
(1)
ddrx_dqs2 / ddrx_dqsn2
DQS3(1)
ddrx_dqs3 / ddrx_dqsn3
DQS2
(1) Only used on 32-bit wide DDR3 memory systems.
Table 7-31. Signal Net Class Definitions
SIGNAL NET CLASS
ASSOCIATED CLOCK
NET CLASS
ADDR_CTRL
CK
DQ0
DQS0
ddrx_d[7:0], ddrx_dqm0
DQ1
DQS1
ddrx_d[15:8], ddrx_dqm1
DQ2(1)
DQS2
ddrx_d[23:16], ddrx_dqm2
DQ3(1)
DQS3
ddrx_d[31:24], ddrx_dqm3
processor PIN NAMES
ddrx_ba[2:0], ddrx_a[15:0], ddrx_csnj, ddrx_casn, ddrx_rasn, ddrx_wen,
ddrx_cke, ddrx_odti
(1) Only used on 32-bit wide DDR3 memory systems.
7.8.2.11 DDR3 Signal Termination
Signal terminators are required for the CK and ADDR_CTRL net classes. The data lines are terminated by
ODT and, thus, the PCB traces should be unterminated. Detailed termination specifications are covered in
the routing rules in the following sections.
7.8.2.12 VTT
Like VREF, the nominal value of the VTT supply is half the DDR3 supply voltage. Unlike VREF, VTT is
expected to source and sink current, specifically the termination current for the ADDR_CTRL net class
Thevinen terminators. VTT is needed at the end of the address bus and it should be routed as a power
sub-plane. VTT should be bypassed near the terminator resistors.
7.8.2.13 CK and ADDR_CTRL Topologies and Routing Definition
The CK and ADDR_CTRL net classes are routed similarly and are length matched to minimize skew
between them. CK is a bit more complicated because it runs at a higher transition rate and is differential.
The following subsections show the topology and routing for various DDR3 configurations for CK and
ADDR_CTRL. The figures in the following subsections define the terms for the routing specification
detailed in Table 7-32.
248
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.8.2.13.1 Three DDR3 Devices
Three DDR3 devices are supported on the DDR EMIF consisting of two x16 DDR3 devices and one
device for ECC, arranged as one bank (CS). These three devices may be mounted on a single side of the
PCB, or may be mirrored in two pairs to save board space at a cost of increased routing complexity and
parts on the backside of the PCB.
7.8.2.13.1.1 CK and ADDR_CTRL Topologies, Three DDR3 Devices
Figure 7-35 shows the topology of the CK net classes and Figure 7-36 shows the topology for the
corresponding ADDR_CTRL net classes.
+ –
+ –
+ –
AS+
AS-
AS+
AS-
AS+
AS-
DDR Differential CK Input Buffers
Clock Parallel
Terminator
DDR_1V5
Rcp
A1
Processor
Differential Clock
Output Buffer
A2
A3
A4
AT
Cac
+
–
Rcp
A1
A2
A3
A4
0.1 µF
AT
Routed as Differential Pair
SPRS91v_PCB_DDR3_06
Figure 7-35. CK Topology for Three DDR3 Devices
Processor
Address and Control
Output Buffer
A1
A2
A3
AS
AS
AS
DDR Address and Control Input Buffers
A4
Address and Control
Terminator
Rtt
Vtt
AT
SPRS91v_PCB_DDR3_07
Figure 7-36. ADDR_CTRL Topology for Three DDR3 Devices
7.8.2.13.1.2 CK and ADDR_CTRL Routing, Three DDR3 Devices
Figure 7-37 shows the CK routing for three DDR3 devices placed on the same side of the PCB. Figure 738 shows the corresponding ADDR_CTRL routing.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
249
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
A1
A1
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DDR_1V5
A3
A3
=
A4
A4
Rcp
Cac
Rcp
0.1 µF
AT
AT
AS+
AS-
A2
A2
SPRS91v_PCB_DDR3_08
A1
Figure 7-37. CK Routing for Three Single-Side DDR3 Devices
Rtt
A3
=
A4
AT
Vtt
AS
A2
SPRS91v_PCB_DDR3_09
Figure 7-38. ADDR_CTRL Routing for Three Single-Side DDR3 Devices
To save PCB space, the two DDR3 memories may be mounted as one mirrored pair at a cost of
increased routing and assembly complexity. Figure 7-39 and Figure 7-40 show the routing for CK and
ADDR_CTRL, respectively, for two DDR3 devices mirrored in a pair configuration.
250
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
A1
A1
www.ti.com
DDR_1V5
A3
A3
=
Rcp
Cac
Rcp
0.1 µF
AT
AT
AS+
AS-
A2
A2
SPRS91v_PCB_DDR3_10
A1
Figure 7-39. CK Routing for Two Mirrored DDR3 Devices
Rtt
=
AT
Vtt
AS
A3
A2
SPRS91v_PCB_DDR3_11
Figure 7-40. ADDR_CTRL Routing for Two Mirrored DDR3 Devices
7.8.2.13.2 Two DDR3 Devices
Two DDR3 devices are supported on the DDR EMIF consisting of two x8 DDR3 devices arranged as one
bank (CS), 16 bits wide, or two x16 DDR3 devices arranged as one bank (CS), 32 bits wide. These two
devices may be mounted on a single side of the PCB, or may be mirrored in a pair to save board space at
a cost of increased routing complexity and parts on the backside of the PCB.
7.8.2.13.2.1 CK and ADDR_CTRL Topologies, Two DDR3 Devices
Figure 7-41 shows the topology of the CK net classes and Figure 7-42 shows the topology for the
corresponding ADDR_CTRL net classes.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
251
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
+ –
+ –
AS+
AS-
AS+
AS-
DDR Differential CK Input Buffers
Clock Parallel
Terminator
DDR_1V5
Rcp
A1
Processor
Differential Clock
Output Buffer
A2
A3
AT
Cac
+
–
Rcp
A1
A2
A3
0.1 µF
AT
Routed as Differential Pair
SPRS91v_PCB_DDR3_12
Figure 7-41. CK Topology for Two DDR3 Devices
Processor
Address and Control
Output Buffer
A1
A2
AS
AS
DDR Address and Control Input Buffers
A3
Address and Control
Terminator
Rtt
Vtt
AT
SPRS91v_PCB_DDR3_13
Figure 7-42. ADDR_CTRL Topology for Two DDR3 Devices
7.8.2.13.2.2 CK and ADDR_CTRL Routing, Two DDR3 Devices
Figure 7-43 shows the CK routing for two DDR3 devices placed on the same side of the PCB. Figure 7-44
shows the corresponding ADDR_CTRL routing.
252
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
A1
A1
www.ti.com
DDR_1V5
A3
A3
=
Rcp
Cac
Rcp
0.1 µF
AT
AT
AS+
AS-
A2
A2
SPRS91v_PCB_DDR3_14
A1
Figure 7-43. CK Routing for Two Single-Side DDR3 Devices
Rtt
A3
=
AT
Vtt
AS
A2
SPRS91v_PCB_DDR3_15
Figure 7-44. ADDR_CTRL Routing for Two Single-Side DDR3 Devices
To save PCB space, the two DDR3 memories may be mounted as a mirrored pair at a cost of increased
routing and assembly complexity. Figure 7-45 and Figure 7-46 show the routing for CK and ADDR_CTRL,
respectively, for two DDR3 devices mirrored in a single-pair configuration.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
253
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
A1
A1
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DDR_1V5
A3
A3
=
Rcp
Cac
Rcp
0.1 µF
AT
AT
AS+
AS-
A2
A2
SPRS91v_PCB_DDR3_16
A1
Figure 7-45. CK Routing for Two Mirrored DDR3 Devices
Rtt
=
AT
Vtt
AS
A3
A2
SPRS91v_PCB_DDR3_17
Figure 7-46. ADDR_CTRL Routing for Two Mirrored DDR3 Devices
7.8.2.13.3 One DDR3 Device
A single DDR3 device is supported on the DDR EMIF consisting of one x16 DDR3 device arranged as
one bank (CS), 16 bits wide.
7.8.2.13.3.1 CK and ADDR_CTRL Topologies, One DDR3 Device
Figure 7-47 shows the topology of the CK net classes and Figure 7-48 shows the topology for the
corresponding ADDR_CTRL net classes.
254
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DDR Differential CK Input Buffer
AS+
AS-
+ –
Clock Parallel
Terminator
DDR_1V5
Rcp
A1
Processor
Differential Clock
Output Buffer
A2
AT
Cac
+
–
0.1 µF
Rcp
A1
A2
AT
Routed as Differential Pair
SPRS91v_PCB_DDR3_18
Figure 7-47. CK Topology for One DDR3 Device
AS
DDR Address and Control Input Buffers
Processor
Address and Control
Output Buffer
A1
A2
Address and Control
Terminator
Rtt
AT
Vtt
SPRS91v_PCB_DDR3_19
Figure 7-48. ADDR_CTRL Topology for One DDR3 Device
7.8.2.13.3.2 CK and ADDR/CTRL Routing, One DDR3 Device
Figure 7-49 shows the CK routing for one DDR3 device placed on the same side of the PCB. Figure 7-50
shows the corresponding ADDR_CTRL routing.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
255
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
A1
A1
SPRS975C – AUGUST 2016 – REVISED JULY 2017
DDR_1V5
Rcp
Cac
Rcp
0.1 µF
AT
AT
=
AS+
AS-
A2
A2
SPRS91v_PCB_DDR3_20
A1
Figure 7-49. CK Routing for One DDR3 Device
Rtt
AT
=
Vtt
AS
A2
SPRS91v_PCB_DDR3_21
Figure 7-50. ADDR_CTRL Routing for One DDR3 Device
7.8.2.14 Data Topologies and Routing Definition
No matter the number of DDR3 devices used, the data line topology is always point to point, so its
definition is simple.
Care should be taken to minimize layer transitions during routing. If a layer transition is necessary, it is
better to transition to a layer using the same reference plane. If this cannot be accommodated, ensure
there are nearby ground vias to allow the return currents to transition between reference planes if both
reference planes are ground or vdds_ddr. Ensure there are nearby bypass capacitors to allow the return
currents to transition between reference planes if one of the reference planes is ground. The goal is to
minimize the size of the return current loops.
256
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
7.8.2.14.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3 Devices
DQS lines are point-to-point differential, and DQ/DM lines are point-to-point singled ended. Figure 7-51
and Figure 7-52 show these topologies.
Processor
DQS
IO Buffer
DDR
DQS
IO Buffer
DQSn+
DQSnRouted Differentially
n = 0, 1, 2, 3
SPRS91v_PCB_DDR3_22
Figure 7-51. DQS Topology
Processor
DQ and DM
IO Buffer
DDR
DQ and DM
IO Buffer
Dn
n = 0, 1, 2, 3
SPRS91v_PCB_DDR3_23
Figure 7-52. DQ/DM Topology
7.8.2.14.2 DQS and DQ/DM Routing, Any Number of Allowed DDR3 Devices
Figure 7-53 and Figure 7-54 show the DQS and DQ/DM routing.
DQSn+
DQSn-
DQS
Routed Differentially
n = 0, 1, 2
SPRS91v_PCB_DDR3_24
Figure 7-53. DQS Routing With Any Number of Allowed DDR3 Devices
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
257
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Dn
DQ and DM
n = 0, 1, 2
SPRS91v_PCB_DDR3_25
Figure 7-54. DQ/DM Routing With Any Number of Allowed DDR3 Devices
7.8.2.15 Routing Specification
7.8.2.15.1 CK and ADDR_CTRL Routing Specification
Skew within the CK and ADDR_CTRL net classes directly reduces setup and hold margin and, thus, this
skew must be controlled. The only way to practically match lengths on a PCB is to lengthen the shorter
traces up to the length of the longest net in the net class and its associated clock. A metric to establish
this maximum length is Manhattan distance. The Manhattan distance between two points on a PCB is the
length between the points when connecting them only with horizontal or vertical segments. A reasonable
trace route length is to within a percentage of its Manhattan distance. CACLM is defined as Clock Address
Control Longest Manhattan distance.
Given the clock and address pin locations on the processor and the DDR3 memories, the maximum
possible Manhattan distance can be determined given the placement. Figure 7-55 and Figure 7-56 show
this distance for three loads and two loads, respectively. It is from this distance that the specifications on
the lengths of the transmission lines for the address bus are determined. CACLM is determined similarly
for other address bus configurations; that is, it is based on the longest net of the CK/ADDR_CTRL net
class. For CK and ADDR_CTRL routing, these specifications are contained in Table 7-32.
258
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
(A)
A1
A8
CACLMY
CACLMX
A8
(A)
A8
(A)
A8
(A)
Rtt
A3
=
A4
AT
Vtt
AS
A2
SPRS91v_PCB_DDR3_26
A.
It is very likely that the longest CK/ADDR_CTRL Manhattan distance will be for Address Input 8 (A8) on the DDR3
memories. CACLM is based on the longest Manhattan distance due to the device placement. Verify the net class that
satisfies this criteria and use as the baseline for CK/ADDR_CTRL skew matching and length control.
The length of shorter CK/ADDR_CTRL stubs as well as the length of the terminator stub are not included in this
length calculation. Non-included lengths are grayed out in the figure.
Assuming A8 is the longest, CALM = CACLMY + CACLMX + 300 mils.
The extra 300 mils allows for routing down lower than the DDR3 memories and returning up to reach A8.
Figure 7-55. CACLM for Three Address Loads on One Side of PCB
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
259
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
(A)
A1
A8
CACLMY
CACLMX
A8
(A)
A8
(A)
Rtt
A3
=
AT
Vtt
AS
A2
SPRS91v_PCB_DDR3_27
A.
It is very likely that the longest CK/ADDR_CTRL Manhattan distance will be for Address Input 8 (A8) on the DDR3
memories. CACLM is based on the longest Manhattan distance due to the device placement. Verify the net class that
satisfies this criteria and use as the baseline for CK/ADDR_CTRL skew matching and length control.
The length of shorter CK/ADDR_CTRL stubs as well as the length of the terminator stub are not included in this
length calculation. Non-included lengths are grayed out in the figure.
Assuming A8 is the longest, CALM = CACLMY + CACLMX + 300 mils.
The extra 300 mils allows for routing down lower than the DDR3 memories and returning up to reach A8.
Figure 7-56. CACLM for Two Address Loads on One Side of PCB
Table 7-32. CK and ADDR_CTRL Routing Specification(2)(3)
NO.
PARAMETER
MIN
TYP
MAX
(1)
UNIT
CARS31
A1+A2 length
500
ps
CARS32
A1+A2 skew
29
ps
CARS33
A3 length
125
ps
CARS34
(4)
A3 skew
6
ps
CARS35
A3 skew(5)
6
ps
CARS36
A4 length
125
ps
CARS37
A4 skew
6
ps
ps
CARS38
AS length
5
CARS39
AS skew
1.3
14(1)
ps
CARS310
AS+/AS- length
5
12
ps
CARS311
AS+/AS- skew
1
ps
CARS312
AT length(6)
75
ps
CARS313
AT skew(7)
14
ps
CARS314
(8)
AT skew
CARS315
CK/ADDR_CTRL trace length
CARS316
Vias per trace
CARS317
Via count difference
1
(9)
CARS318
Center-to-center CK to other DDR3 trace spacing
CARS319
Center-to-center ADDR_CTRL to other DDR3 trace spacing(9)(10)
4w
CARS320
Center-to-center ADDR_CTRL to other ADDR_CTRL trace
spacing(9)
3w
260
17
(1)
Applications, Implementation, and Layout
ps
1020
ps
3(1)
vias
1(15)
vias
4w
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 7-32. CK and ADDR_CTRL Routing Specification(2)(3) (continued)
NO.
PARAMETER
CARS321
CK center-to-center spacing(11)(12)
CARS322
CK spacing to other net(9)
CARS323
Rcp(13)
CARS324
Rtt(13)(14)
MIN
TYP
MAX
UNIT
Zo-1
Zo
Zo+1
Ω
Zo-5
Zo
Zo+5
Ω
4w
(1) Max value is based upon conservative signal integrity approach. This value could be extended only if detailed signal integrity analysis of
rise time and fall time confirms desired operation.
(2) The use of vias should be minimized.
(3) Additional bypass capacitors are required when using the DDR_1V5 plane as the reference plane to allow the return current to jump
between the DDR_1V5 plane and the ground plane when the net class switches layers at a via.
(4) Non-mirrored configuration (all DDR3 memories on same side of PCB).
(5) Mirrored configuration (one DDR3 device on top of the board and one DDR3 device on the bottom).
(6) While this length can be increased for convenience, its length should be minimized.
(7) ADDR_CTRL net class only (not CK net class). Minimizing this skew is recommended, but not required.
(8) CK net class only.
(9) Center-to-center spacing is allowed to fall to minimum (2w) for up to 1250 mils of routed length.
(10) The ADDR_CTRL net class of the other DDR EMIF is considered other DDR3 trace spacing.
(11) CK spacing set to ensure proper differential impedance.
(12) The most important thing to do is control the impedance so inadvertent impedance mismatches are not created. Generally speaking,
center-to-center spacing should be either 2w or slightly larger than 2w to achieve a differential impedance equal to twice the singleended
impedance, Zo.
(13) Source termination (series resistor at driver) is specifically not allowed.
(14) Termination values should be uniform across the net class.
(15) Via count difference may increase by 1 only if accurate 3-D modeling of the signal flight times – including accurately modeled signal
propagation through vias – has been applied to ensure all segment skew maximums are not exceeded.
7.8.2.15.2 DQS and DQ Routing Specification
Skew within the DQS and DQ/DM net classes directly reduces setup and hold margin and thus this skew
must be controlled. The only way to practically match lengths on a PCB is to lengthen the shorter traces
up to the length of the longest net in the net class and its associated clock. As with CK and ADDR_CTRL,
a reasonable trace route length is to within a percentage of its Manhattan distance. DQLMn is defined as
DQ Longest Manhattan distance n, where n is the byte number. For a 32-bit interface, there are three
DQLMs, DQLM0-DQLM2. Likewise, for a 16-bit interface, there are two DQLMs, DQLM0-DQLM1.
NOTE
It is not required, nor is it recommended, to match the lengths across all bytes. Length
matching is only required within each byte.
Given the DQS and DQ/DM pin locations on the processor and the DDR3 memories, the maximum
possible Manhattan distance can be determined given the placement. Figure 7-57 shows this distance for
four loads. It is from this distance that the specifications on the lengths of the transmission lines for the
data bus are determined. For DQS and DQ/DM routing, these specifications are contained in Table 7-33.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
261
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
DQLMX0
DB0
DB1
DQ[0:7]/DM0/DQS0
DQ[8:15]/DM1/DQS1
DQLMX1
DQ[16:23]/DM2/DQS2
DB2
DQLMY0
DQLMX2
DQLMY1
DQLMY2
2
1
0
DB0 - DB2 represent data bytes 0 - 2.
SPRS91v_PCB_DDR3_28
There are three DQLMs, one for each byte (32-bit interface). Each DQLM is the longest Manhattan distance of the
byte; therefore:
DQLM0 = DQLMX0 + DQLMY0
DQLM1 = DQLMX1 + DQLMY1
DQLM2 = DQLMX2 + DQLMY2
Figure 7-57. DQLM for Any Number of Allowed DDR3 Devices
Table 7-33. Data Routing Specification(2)
MAX
UNIT
DRS31
NO.
DB0 length
PARAMETER
MIN
340
ps
DRS32
DB1 length
340
ps
DRS33
DB2 length
340
ps
DRS35
DBn skew(3)
5
ps
DRS36
DQSn+ to DQSn- skew
1
ps
DRS37
DQSn to DBn skew(3)(4)
5(10)
ps
DRS38
Vias per trace
2(1)
vias
DRS39
Via count difference
0(10)
vias
(6)
DRS310
Center-to-center DBn to other DDR3 trace spacing
DRS311
Center-to-center DBn to other DBn trace spacing
(7)
DRS312
DQSn center-to-center spacing(8)(9)
DRS313
DQSn center-to-center spacing to other net
TYP
4
w(5)
3
w(5)
4
w(5)
(1) Max value is based upon conservative signal integrity approach. This value could be extended only if detailed signal integrity analysis of
rise time and fall time confirms desired operation.
(2) External termination disallowed. Data termination should use built-in ODT functionality.
(3) Length matching is only done within a byte. Length matching across bytes is neither required nor recommended.
(4) Each DQS pair is length matched to its associated byte.
(5) Center-to-center spacing is allowed to fall to minimum (2w) for up to 1250 mils of routed length.
(6) Other DDR3 trace spacing means other DDR3 net classes not within the byte.
(7) This applies to spacing within the net classes of a byte.
(8) DQS pair spacing is set to ensure proper differential impedance.
(9) The most important thing to do is control the impedance so inadvertent impedance mismatches are not created. Generally speaking,
center-to-center spacing should be either 2w or slightly larger than 2w to achieve a differential impedance equal to twice the singleended
impedance, Zo.
(10) Via count difference may increase by 1 only if accurate 3-D modeling of the signal flight times – including accurately modeled signal
propagation through vias – has been applied to ensure DBn skew and DQSn to DBn skew maximums are not exceeded.
262
Applications, Implementation, and Layout
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
7.9
SPRS975C – AUGUST 2016 – REVISED JULY 2017
CVIDEO/SD-DAC Guidelines and Electrical Data/Timing
The device's analog video CVIDEO/SD-DAC TV analog composite output can be operate in one of two
modes: Normal mode and TVOUT Bypass mode. In Normal mode, the device’s internal video amplifier is
used. In TVOUT Bypass mode, the internal video amplifier is bypassed and an external amplifier is
required.
Figure 7-58 shows a typical circuit that permits connecting the analog video output from the device to
standard 75-Ω impedance video systems in Normal mode.
cvideo_tvout
Reconstruction
(A)
Filter
~9.5 MHz
CAC
(B)
ROUT
cvideo_vfb
A.
B.
Reconstruction Filter (optional)
AC coupling capacitor (optional)
Figure 7-58. TV Output (Normal Mode)
Figure 7-59 shows a typical circuit that permits connecting the analog video output from the device to
standard 75-Ω impedance video systems in TVOUT Bypass mode.
Reconstruction
(A)
Filter
~9.5 MHz
cvideo_vfb
Amplifier
3.7 V/V
75 W
CAC
(B)
RLOAD
A.
B.
Reconstruction Filter (optional). Note: An amplifier with an integrated reconstruction filter can alternatively be used
instead of a discrete reconstruction filter.
AC coupling capacitor (optional)
Figure 7-59. TV Output (TVOUT Bypass Mode)
During board design, the onboard traces and parasitics must be matched for the channel. The video DAC
output pins (cvideo_tvout / cvideo_vfb) are very high-frequency analog signals and must be routed with
extreme care. As a result, the paths of these signals must be as short as possible, and as isolated as
possible from other interfering signals. In TVOUT Bypass mode, the load resistor and amplifier/buffer
should be placed as close as possible to the cvideo_vfb pin. Other layout guidelines include:
• Take special care to bypass the vdda_dac power supply pin with a capacitor.
• In TVOUT Bypass mode, place the RLOAD resistor as close as possible to the Reconstruction Filter
and Amplifier. In addition, place the 75-Ω resistor as close as possible (< 0.5 inch) to the
Amplifier/buffer output pin. To maintain a high-quality video signal, the onboard traces after the 75-Ω
resistor should have a characteristic impedance of 75 Ω (± 20%).
• In Normal mode,cvideo_vfb is the most sensitive pin in the TV out system. The ROUT resistor should
be placed as close as possible to the device pins. To maintain a high-quality video signal, the onboard
traces leading to the cvideo_tvout pin should have a characteristic impedance of 75 Ω (± 20%) starting
from the closest possible place to the device pin output.
• Minimize input trace lengths to the device to reduce parasitic capacitance.
• Include solid ground return paths.
• Match trace lengths as close as possible within a video format group.
Applications, Implementation, and Layout
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
263
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
Table 7-34 and Table 7-35 present the Static and Dynamic CVIDEO / SD-DAC TV analog composite
output specifications
Table 7-34. Static CVIDEO/SD-DAC Specifications
MIN
TYP
MAX
UNIT
Reference Current Setting Resistor
(RSET)
PARAMETER
Normal Mode
TEST CONDITIONS
4653
4700
4747
Ω
TVOUT Bypass Mode
9900
10000
10100
Ω
Output resistor between
cvideo_tvout and cvideo_vfb pins
(ROUT)
Normal Mode
2673
2700
2727
Ω
Load Resistor (RLOAD)
Normal Mode
TVOUT Bypass Mode
N/A
75-Ω Inside the Display
TVOUT Bypass Mode
1485
AC-Coupling Capacitor (Optional)
[CAC]
Normal Mode
220
Total Capacitance from
cvideo_tvout to vssa_dac
Normal Mode
TVOUT Bypass Mode
1500
1515
See External Amplifier Specification
TVOUT Bypass Mode
300
pF
4
LSB
N/A
Resolution
10
Integral Non-Linearity (INL), Best
Fit
Normal Mode
Differential Non-Linearity (DNL)
Normal Mode
TVOUT Bypass Mode
TVOUT Bypass Mode
Full-Scale Output Voltage
Full-Scale Output Current
-1
1
LSB
-2.5
2.5
LSB
-1
1
LSB
1.3
V
TVOUT Bypass Mode (RLOAD =
1.5 kΩ)
0.7
V
470
uA
N/A
TVOUT Bypass Mode
Gain Mismatch (Luma-to-Chroma)
Normal Mode (Composite) and
TVOUT Bypass Mode
-10
Normal Mode (S-Video)
-20
Normal Mode (Composite)
Normal Mode (S-Video)
Output Impedance
Bits
-4
Normal Mode (RLOAD = 75 Ω)
Normal Mode
Gain Error
Ω
uF
10
%FS
20
%FS
10
%
N/A
-10
Looking into cvideo_tvout nodes
75
Ω
Table 7-35. Dynamic CVIDEO/SD-DAC Specifications
PARAMETER
TEST CONDITIONS
Output Update Rate (FCLK)
MIN
TYP
MAX
UNIT
54
60
MHz
Signal Bandwidth
3 dB
6
MHz
Spurious-Free Dynamic Range
(SFDR) within bandwidth
FCLK = 54 MHz, FOUT = 1 MHz
50
dBc
Signal-to-Noise Ration (SNR)
FCLK = 54 MHz, FOUT = 1 MHz
54
dB
Normal Mode, 100 mVpp @ 6
MHz on vdda_dac
6
TVOUT Bypass Mode, 100
mVpp @ 6 MHz on vdda_dac
20
Power Supply Rejection (PSR)
264
Applications, Implementation, and Layout
dB
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
8 Device and Documentation Support
TI offers an extensive line of development tools, including tools to evaluate the performance of the
processors, generate code, develop algorithm implementations, and fully integrate and debug software
and hardware modules are listed below.
8.1
Device Nomenclature
To designate the stages in the product development cycle, TI assigns prefixes to the part numbers of all
microprocessors (MPUs) and support tools. Each device has one of three prefixes: X, P, or null (no prefix)
(for example, DRA78x). Texas Instruments recommends two of three possible prefix designators for its
support tools: TMDX and TMDS. These prefixes represent evolutionary stages of product development
from engineering prototypes (TMDX) through fully qualified production devices and tools (TMDS).
Device development evolutionary flow:
X
Experimental device that is not necessarily representative of the final device's electrical
specifications and may not use production assembly flow.
P
Prototype device that is not necessarily the final silicon die and may not necessarily meet
final electrical specifications.
null
Production version of the silicon die that is fully qualified.
Support tool development evolutionary flow:
TMDX
Development-support product that has not yet completed Texas Instruments internal
qualification testing.
TMDS
Fully-qualified development-support product.
X and P devices and TMDX development-support tools are shipped against the following disclaimer:
"Developmental product is intended for internal evaluation purposes."
Production devices and TMDS development-support tools have been characterized fully, and the quality
and reliability of the device have been demonstrated fully. TI's standard warranty applies.
Predictions show that prototype devices (X or P) have a greater failure rate than the standard production
devices. Texas Instruments recommends that these devices not be used in any production system
because their expected end-use failure rate still is undefined. Only qualified production devices are to be
used.
For orderable part numbers of DRA78x devices in the ABF package type, see the Package Option
Addendum of this document, the TI website (www.ti.com), or contact your TI sales representative.
For additional description of the device nomenclature markings on the die, see the Silicon Errata (literature
number SPRZ425).
Device and Documentation Support
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
265
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
8.1.1
www.ti.com
Standard Package Symbolization
JACINTO
aBBBBBBrzYPPPQ1
XXXXXXX
ZZZ G1
YYY
PIN ONE INDICATOR
O
SPRS975_PACK_01
Figure 8-1. Printed Device Reference
NOTE
Some devices have a cosmetic circular marking visible on the top of the device package
which results from the production test process. These markings are cosmetic only with no
reliability impact.
8.1.2
Device Naming Convention
Table 8-1. Nomenclature Description
FIELD PARAMETER
a
BBBBBB
r
z
FIELD DESCRIPTION
Device evolution
stage(1)
Base production part
number
Device revision
Device Speed
VALUE
DESCRIPTION
X
Prototype
P
Preproduction (production test flow, no reliability data)
BLANK
Production
DRA780
J6RSP Low Tier
DRA781
J6RSP Mid Tier
DRA782
J6RSP High Tier
DRA783
J6RSP Super High Tier
BLANK
SR 1.0
A
SR 1.0A
B
SR 2.0
D
Indicates the speed grade for each of the cores in the device. For more
information see Table 3-1, Device Comparison Table.
R
OTHER
Y
266
Device type
Device and Documentation Support
G
General purpose (Prototype and Production)
E
Emulation (E) devices
D
High security prototype devices with TI Development keys (D)
Yn
Letter followed by number indicates HS device with customer key
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Table 8-1. Nomenclature Description (continued)
FIELD PARAMETER
PPP
Q1
FIELD DESCRIPTION
Package designator
Automotive Designator
VALUE
ABF
BLANK
Q1
XXXXXXX
DESCRIPTION
ABF S-PBGA-N367 (15mm x 15mm) Package
Not meeting automotive qualification
Meeting Q100 equal requirements, with exceptions as specified in DM
Lot Trace Code
YYY
Production Code, For TI use only
ZZZ
Production Code, For TI use only
O
Pin one designator
G1
ECAT—Green package designator
(1) To designate the stages in the product development cycle, TI assigns prefixes to the part numbers. These prefixes represent
evolutionary stages of product development from engineering prototypes through fully qualified production devices.
Prototype devices are shipped against the following disclaimer:
“This product is still in development and is intended for internal evaluation purposes.”
Notwithstanding any provision to the contrary, TI makes no warranty expressed, implied, or statutory, including any implied warranty of
merchantability of fitness for a specific purpose, of this device.
NOTE
BLANK in the symbol or part number is collapsed so there are no gaps between characters.
8.2
Tools and Software
The following products support development for DRA78x platforms:
Development Tools
DRA78x Clock Tree Tool is an interactive clock tree configuration software that allows the user to
visualize the device clock tree, interact with clock tree elements and view the effect on PRCM registers,
interact with the PRCM registers and view the effect on the device clock tree, and view a trace of all the
device registers affected by the user interaction with the clock tree.
DRA78x Register Descriptor Tool is an interactive device register configuration tool that allows users to
visualize the register state on power-on reset, and then customize the configuration of the device for the
specific use-case.
DRA78x Pad Configuration Tool is an interactive pad-configuration tool that allows the user to visualize
the device pad configuration state on power-on reset and then customize the configuration of the pads for
the specific use-case and identify the device register settings associated to that configuration.
For a complete listing of development-support tools for the processor platform, visit the Texas Instruments
website at www.ti.com. For information on pricing and availability, contact the nearest TI field sales office
or authorized distributor.
8.3
Documentation Support
The following documents describe the DRA78x devices.
TRM
DRA78x Infotainment Applications Processor Technical Reference Manual Details the integration,
the environment, the functional description, and the programming models for each peripheral
and subsystem in the DRA78x family of devices.
Errata
DRA78x Silicon Errata Describes known advisories, limitations, and cautions on silicon and provides
workarounds.
Device and Documentation Support
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
267
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
8.3.1
www.ti.com
FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates, uses, and can
radiate radio frequency energy and has not been tested for compliance with the limits of computing
devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable
protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case the user at his own expense will be
required to take whatever measures may be required to correct this interference.
8.3.2
Information About Cautions and Warnings
This book may contain cautions and warnings.
CAUTION
This is an example of a caution statement.
A caution statement describes a situation that could potentially damage your
software or equipment.
WARNING
This is an example of a warning statement.
A warning statement describes a situation that could potentially cause
harm to you.
The information in a caution or a warning is provided for your protection. Please read each caution and
warning carefully.
8.4
Receiving Notification of Documentation Updates
To receive notification of documentation updates — including silicon errata — go to the product folder for
your device on ti.com. In the upper right-hand corner, click the "Alert me" button. This registers you to
receive a weekly digest of product information that has changed (if any). For change details, check the
revision history of any revised document.
8.5
Related Links
The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to order now.
Table 8-2. Related Links
268
PARTS
PRODUCT FOLDER
ORDER NOW
TECHNICAL
DOCUMENTS
TOOLS &
SOFTWARE
SUPPORT &
COMMUNITY
DRA780
Click here
Click here
Click here
Click here
Click here
DRA781
Click here
Click here
Click here
Click here
Click here
DRA782
Click here
Click here
Click here
Click here
Click here
DRA783
Click here
Click here
Click here
Click here
Click here
DRA786
Click here
Click here
Click here
Click here
Click here
DRA787
Click here
Click here
Click here
Click here
Click here
Device and Documentation Support
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
www.ti.com
8.6
SPRS975C – AUGUST 2016 – REVISED JULY 2017
Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the
respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views;
see TI's Terms of Use.
TI Embedded Processors Wiki Texas Instruments Embedded Processors Wiki.
Established to help developers get started with Embedded Processors from Texas
Instruments and to foster innovation and growth of general knowledge about the hardware
and software surrounding these devices.
8.7
Trademarks
C64x and ICEPick are trademarks of Texas Instruments Incorporated.
ARM, Thumb, and Cortex are registered trademarks of ARM Limited.
ETB, ARM9, CoreSight, and Neon are trademarks of ARM Limited.
QSPI is a trademark of Cadence Design Systems, Inc.
SD is a registered trademark of Toshiba Corporation.
MMC and eMMC are trademarks of MultiMediaCard Association.
JTAG is a registered trademark of JTAG Technologies, Inc.
HD Radio is a trademark of iBiquity Digital Corporation.
MIPI is a registered trademark of the Mobile Industry Processor Interface (MIPI) Alliance.
All other trademarks are the property of their respective owners.
8.8
Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
8.9
Export Control Notice
Recipient agrees to not knowingly export or re-export, directly or indirectly, any product or technical data
(as defined by the U.S., EU, and other Export Administration Regulations) including software, or any
controlled product restricted by other applicable national regulations, received from disclosing party under
nondisclosure obligations (if any), or any direct product of such technology, to any destination to which
such export or re-export is restricted or prohibited by U.S. or other applicable laws, without obtaining prior
authorization from U.S. Department of Commerce and other competent Government authorities to the
extent required by those laws.
8.10 Glossary
TI Glossary This glossary lists and explains terms, acronyms, and definitions.
Device and Documentation Support
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
Copyright © 2016–2017, Texas Instruments Incorporated
269
DRA780, DRA781, DRA782
DRA783, DRA786, DRA787
SPRS975C – AUGUST 2016 – REVISED JULY 2017
www.ti.com
9 Mechanical Packaging and Orderable Information
The following pages include mechanical packaging information. This information is the most current data
available for the designated devices. This data is subject to change without notice and revision of this
document. For browser-based versions of this data sheet, refer to the left-hand navigation.
9.1
Mechanical Data
270
Mechanical Packaging and Orderable Information
Copyright © 2016–2017, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: DRA780 DRA781 DRA782 DRA783 DRA786 DRA787
PACKAGE OPTION ADDENDUM
www.ti.com
11-Aug-2017
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
DRA780BDGABFQ1
ACTIVE
FCBGA
ABF
367
90
TBD
Call TI
Call TI
-40 to 125
DRA780BDGABFRQ1
ACTIVE
FCBGA
ABF
367
1000
TBD
Call TI
Call TI
-40 to 125
DRA781BRGABFQ1
ACTIVE
FCBGA
ABF
367
90
TBD
Call TI
Call TI
-40 to 125
DRA781BRGABFRQ1
ACTIVE
FCBGA
ABF
367
1000
TBD
Call TI
Call TI
-40 to 125
DRA782BDGABFQ1
ACTIVE
FCBGA
ABF
367
90
TBD
Call TI
Call TI
-40 to 125
DRA782BDGABFRQ1
ACTIVE
FCBGA
ABF
367
1000
TBD
Call TI
Call TI
-40 to 125
DRA783BRGABFQ1
ACTIVE
FCBGA
ABF
367
90
TBD
Call TI
Call TI
-40 to 125
DRA786BDGABFQ1
ACTIVE
FCBGA
ABF
367
90
TBD
Call TI
Call TI
-40 to 125
DRA786BDGABFRQ1
ACTIVE
FCBGA
ABF
367
1000
TBD
Call TI
Call TI
-40 to 125
DRA787BRGABFQ1
ACTIVE
FCBGA
ABF
367
90
TBD
Call TI
Call TI
-40 to 125
DRA787BRGABFRQ1
ACTIVE
FCBGA
ABF
367
1000
TBD
Call TI
Call TI
-40 to 125
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
(4)
11-Aug-2017
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
IMPORTANT NOTICE
Texas Instruments Incorporated (TI) reserves the right to make corrections, enhancements, improvements and other changes to its
semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers
should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
TI’s published terms of sale for semiconductor products (http://www.ti.com/sc/docs/stdterms.htm) apply to the sale of packaged integrated
circuit products that TI has qualified and released to market. Additional terms may apply to the use or sale of other types of TI products and
services.
Reproduction of significant portions of TI information in TI data sheets is permissible only if reproduction is without alteration and is
accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such reproduced
documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements
different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the
associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Buyers and others who are developing systems that incorporate TI products (collectively, “Designers”) understand and agree that Designers
remain responsible for using their independent analysis, evaluation and judgment in designing their applications and that Designers have
full and exclusive responsibility to assure the safety of Designers' applications and compliance of their applications (and of all TI products
used in or for Designers’ applications) with all applicable regulations, laws and other applicable requirements. Designer represents that, with
respect to their applications, Designer has all the necessary expertise to create and implement safeguards that (1) anticipate dangerous
consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that might cause harm and
take appropriate actions. Designer agrees that prior to using or distributing any applications that include TI products, Designer will
thoroughly test such applications and the functionality of such TI products as used in such applications.
TI’s provision of technical, application or other design advice, quality characterization, reliability data or other services or information,
including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to
assist designers who are developing applications that incorporate TI products; by downloading, accessing or using TI Resources in any
way, Designer (individually or, if Designer is acting on behalf of a company, Designer’s company) agrees to use any particular TI Resource
solely for this purpose and subject to the terms of this Notice.
TI’s provision of TI Resources does not expand or otherwise alter TI’s applicable published warranties or warranty disclaimers for TI
products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections,
enhancements, improvements and other changes to its TI Resources. TI has not conducted any testing other than that specifically
described in the published documentation for a particular TI Resource.
Designer is authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that
include the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE
TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY
RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or
endorsement thereof. Use of TI Resources may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
TI RESOURCES ARE PROVIDED “AS IS” AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR
REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO
ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL
PROPERTY RIGHTS. TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY DESIGNER AGAINST ANY CLAIM,
INCLUDING BUT NOT LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF
PRODUCTS EVEN IF DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL,
DIRECT, SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN
CONNECTION WITH OR ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Unless TI has explicitly designated an individual product as meeting the requirements of a particular industry standard (e.g., ISO/TS 16949
and ISO 26262), TI is not responsible for any failure to meet such industry standard requirements.
Where TI specifically promotes products as facilitating functional safety or as compliant with industry functional safety standards, such
products are intended to help enable customers to design and create their own applications that meet applicable functional safety standards
and requirements. Using products in an application does not by itself establish any safety features in the application. Designers must
ensure compliance with safety-related requirements and standards applicable to their applications. Designer may not use any TI products in
life-critical medical equipment unless authorized officers of the parties have executed a special contract specifically governing such use.
Life-critical medical equipment is medical equipment where failure of such equipment would cause serious bodily injury or death (e.g., life
support, pacemakers, defibrillators, heart pumps, neurostimulators, and implantables). Such equipment includes, without limitation, all
medical devices identified by the U.S. Food and Drug Administration as Class III devices and equivalent classifications outside the U.S.
TI may expressly designate certain products as completing a particular qualification (e.g., Q100, Military Grade, or Enhanced Product).
Designers agree that it has the necessary expertise to select the product with the appropriate qualification designation for their applications
and that proper product selection is at Designers’ own risk. Designers are solely responsible for compliance with all legal and regulatory
requirements in connection with such selection.
Designer will fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of Designer’s noncompliance with the terms and provisions of this Notice.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2017, Texas Instruments Incorporated