ATMEL AT91SAM9G46

Features
• 400 MHz ARM926EJ-S™ ARM® Thumb® Processor
– 32 KBytes Data Cache, 32 KBytes Instruction Cache, MMU
• Memories
•
•
•
•
•
– 4-port, 4-bank DDR2/LPDDR Controller
– External Bus Interface supporting 4-bank DDR2/LPDDR, SDRAM/LPSDR, Static
Memories, CompactFlash, SLC NAND Flash with ECC
– One 64-KByte internal SRAM, single-cycle access at system speed or processor
speed through TCM interface
– One 64-KByte internal ROM, embedding bootstrap routine
Peripherals
– LCD Controller supporting STN and TFT displays up to 1280*860
– ITU-R BT. 601/656 Image Sensor Interface
– Dual High Speed USB Host and a High Speed USB Device with On-Chip
Transceivers
– 10/100 Mbps Ethernet MAC Controller
– Two High Speed Memory Card Hosts (SDIO, SDCard, e.MMC and CE ATA)
– AC'97 controller
– Two Master/Slave Serial Peripheral Interfaces
– Two Three-channel 16-bit Timer/Counters
– Two Synchronous Serial Controllers (I2S mode)
– Four-channel 16-bit PWM Controller
– Two Two-wire Interfaces
– Four USARTs with ISO7816, IrDA, Manchester and SPI modes
– 8-channel 10-bit ADC with 4-wire Touch Screen support
Cryptography
– TRNG True Random Number Generator
– AES256-, 192-, 128-bit Key Algorithm,
– TDES Compliant with FIPS PUB 46-3 Specifications
– SHA (SHA1 and SHA256) Compliant with FIPS Publication 180-2
System
– 133 MHz twelve 32-bit layer AHB Bus Matrix
– 39 DMA Channels
– Boot from NAND Flash, SDCard, DataFlash® or serial DataFlash
– Reset Controller with on-chip Power-on Reset
– Selectable 32768 Hz Low-power and 12 MHz Crystal Oscillators
– Internal Low-power 32 kHz RC Oscillator
– One PLL for the system and one 480 MHz PLL optimized for USB High Speed
– Two Programmable External Clock Signals
– Advanced Interrupt Controller and Debug Unit
– Periodic Interval Timer, Watchdog Timer, Real Time Timer and Real Time Clock
I/O
– Five 32-bit Parallel Input/Output Controllers
– 160 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os with
Schmitt trigger input
Package
– 324-ball TFBGA, pitch 0.8 mm
AT91 ARM
Thumb-based
Microcontrollers
AT91SAM9G46
Preliminary
Summary
NOTE: This is a summary document.
The complete document is available
under NDA. For more information,
please contact your local Atmel sales
office.
11028BS–ATARM–26-Apr-10
1. Description
The ARM926EJ-S based AT91SAM9G46 features the frequently requested combination of user
interface functionality and high data rate connectivity, including LCD Controller, resistive touchscreen, camera interface, audio, Ethernet 10/100 and high speed USB and SDIO. With the processor running at 400MHz and multiple 100+ Mbps data rate peripherals, the AT91SAM9G46
has the performance and bandwidth to the network or local storage media to provide an adequate user experience.
The AT91SAM9G46 supports the latest generation of DDR2 and NAND Flash memory interfaces for program and data storage. An internal 133 MHz multi-layer bus architecture associated
with 39 DMA channels, a dual external bus interface and distributed memory including a 64KByte SRAM that can be configured as a tightly coupled memory (TCM) sustains the high bandwidth required by the processor and the high speed peripherals.
On-chip hardware accelerators with DMA support enable high-speed data encryption and
authentication of the transferred data or application. Supported standards are up to 256-bit AES,
FIPS PUB 46-3 compliant TDES and FIPS Publication 180-2 compliant SHA1 and SHA256. A
True Random Number Generator is embedded for key generation and exchange protocols.
The I/Os support 1.8V or 3.3V operation, which are independently configurable for the memory
interface and peripheral I/Os. This feature completely eliminates the need for any external level
shifters. In addition it supports 0.8 ball pitch package for low cost PCB manufacturing.
The AT91SAM9G46 power management controller features efficient clock gating and a battery
backup section minimizing power consumption in active and standby modes.
2
AT91SAM9G46
11028BS–ATARM–26-Apr-10
11028BS–ATARM–26-Apr-10
PDC
DBGU
AIC
MCI0/MCI1
SD/SDIO
CE ATA
TWI0
TWI1
PIOE
FIFO
PIOD
RSTC
PIOB
PIOC
POR
VDDCORE
RTC
PIOA
POR
SHDC
RTT
4
GPBR
RC
OSC 32K
PIT
WDT
OSC12M
PLLUTMI PMC
PLLA
VDDBU
NRST
XIN32
XOUT32
SHDN
WKUP
XIN
XOUT
PLLRCA
DRXD
DTXD
FIQ
IRQ
System Controller
PIO
JTA
GS
EL
NT
RS
T
TD
I
TD
O
TM
TCS
K
RT
CK
AES
4-CH
PWM
ROM
64KB
PDC
USART0
USART1
USART2
USART3
SRAM
64KB
I
BM
TC0
TC1
TC2
PDC
TDES
D
DCache
ICache
MMU 32Kbytes
32K bytes
ITCM DTCM Bus Interface
ARM926EJ-S
In-Circuit Emulator
JTAG / Boundary Scan
S
PB
TC3
TC4
TC5
PDC
SHA
DMA
DMA
HS
USB
HS
Transceiver
DMA
LCD
PIO
SPI0
SPI1
PDC
PIO
SSC0
SSC1
PDC
Peripheral
DMA
Controller
DMA
ISI
SSC0_, SSC1_
Peripheral
Bridge
SPI0_, SPI1_
TRNG
Multi-Layer AHB Matrix
HS EHCI
USB HOST
PA
HS
Transceiver
AC97
PDC
DMA
EMAC
PDC
8-CH
10Bit ADC
TouchScreen
8-CH
DMA
H
F
S
HH DPA
SD ,H
PA FS
D
,
H
HS MA
V
DM
B
G
A
DF
S
D DP
H
SD /HFS
P/H DP
HS B,D
LC
D
F
P
D
B,D SDM
LC D0
HS /H
D -L
DM FS
LC VSY CDD
D
D
/
N
2
H
HSMB
LD DO C,L 3
T
DM
D
C
LC EN CK DH
B
SY
DP ,LC
NC
W D
IS
R, CC
I_
IS DO- LCD
I_
IS
M
IS PCK I_D OD
I_
11
I H
S
I_ SY
IS VS NC
I
_M YN
C C
ET K
X
ET CK
X
E
EC EN RX
R -E C
ER S-E TX K
E
ER XER COL R
X ET 0-E ERX
X R
D
E 0-ET X3 V
M
EM DC X3
DI
O
APB
M
C
I
M 0_D
CI
0_ A0M
C
M DA CI0
C
,M
_
M I0_ CI DA
C
7
C
1
I
1_ K, _C
DA MC DA
0- I1_
M
CI CK
1_
DA
TW
7
TW D0
C -T
K
0- WD
C TW 1
T
C
S
RT 0- K1
S CT
S 0-R S3
C
K T
RD 0-S S3
X C
TX 0-R K3
D
D
0 X
PW -TX 3
D3
M
0PW
TC
M
L
3
K
T 0
I
O -TC
A0 L
TI -TI K2
O O
TC B0 A2
L -T
TI K3 IO
B
O TI A3 TCL 2
O
B3 TIO K5
-T A5
IO
B
NP 5
NP CS
C 3
NP S2
NP CS
C 1
SP S0
C
M K
O
M SI
TK ISO
0
TF -TK
TD 0-T 1
F
RD 0-T 1
0 D
R -RD1
F
0
RK -R 1
0- F1
AC RK1
AC 97C
9 K
AC 7F
9 S
AC 7RX
TS 97
A TX
D
TR
AD IG
0
A XP
D
1
AD XM
2Y
G
P
AD AD3 P
Y
4
TS -GPA M
AD
D
VR 7
VD EF
DA
GN NA
D
Static
Memory
Controller
CF
NandFlash
Controller
ECC
DDR2/
LPDDR/
SDRAM
Controller
EBI
DDR2
LPDDR
D16-D31
NWAIT
DQM[2..3]
A19-A24
NCS4/CFCS0
NCS5/CFCS1
A25/CFRNW
CFCE1-CFCE2
NCS2
NCS3/NANDCS
D0-D15
A0/NBS0
A1/NBS2/NWR2
A2-A15, A18
A16/BA0
A17/BA1
NCS1/SDCS
SDCK, #SDCK, SDCKE
RAS, CAS
SDWE, SDA10
DQM[0..1]
DQS[0..1]
NRD
NWR0/NWE
NWR1/NBS1
NWR3/NBS3
NCS0
NANDOE, NANDWE
DDR_CS
DDR_CLK,#DDR_CLK
DDR_CKE
DDR_RAS, DDR_CAS
DDR_WE
DDR_BA0, DDR_BA1
DDR_A0-DDR_A13
DDR_D0-DDR_D15
DDR_VREF
DDR_DQM[0..1]
DDR_DQS[0..1]
Figure 2-1.
PCK0-PCK1
TST
AT91SAM9G46
2. Block Diagram
AT91SAM9G46 Block Diagram
3
3. Signal Description
Table 3-1 gives details on the signal names classified by peripheral.
Table 3-1.
Signal Name
Signal Description List
Function
Type
Active
Level
Reference
Voltage
Comments
Power Supplies
VDDIOM0
DDR2 I/O Lines Power Supply
Power
1.65V to 1.95V
VDDIOM1
EBI I/O Lines Power Supply
Power
1.65V to 1.95V or 3.0V to3.6V
VDDIOP0
Peripherals I/O Lines Power Supply
Power
1.65V to 3.6V
VDDIOP1
Peripherals I/O Lines Power Supply
Power
1.65V to 3.6V
VDDIOP2
ISI I/O Lines Power Supply
Power
1.65V to 3.6V
VDDBU
Backup I/O Lines Power Supply
Power
1.8V to 3.6V
VDDANA
Analog Power Supply
Power
3.0V to 3.6V
VDDPLLA
PLLA Power Supply
Power
0.9V to 1.1V
VDDPLLUTMI
PLLUTMI Power Supply
Power
0.9V to 1.1V
VDDOSC
Oscillator Power Supply
Power
1.65V to 3.6V
VDDCORE
Core Chip Power Supply
Power
0.9V to 1.1V
VDDUTMIC
UDPHS and UHPHS UTMI+ Core
Power Supply
Power
0.9V to 1.1V
VDDUTMII
UDPHS and UHPHS UTMI+ interface
Power Supply
Power
3.0V to 3.6V
GNDIOM
DDR2 and EBI I/O Lines Ground
Ground
GNDIOP
Peripherals and ISI I/O lines Ground
Ground
GNDCORE
Core Chip Ground
Ground
GNDOSC
PLLA, PLLUTMI and Oscillator
Ground
Ground
GNDBU
Backup Ground
Ground
GNDUTMI
UDPHS and UHPHS UTMI+ Core and
interface Ground
Ground
GNDANA
Analog Ground
Ground
Clocks, Oscillators and PLLs
XIN
Main Oscillator Input
Input
XOUT
Main Oscillator Output
Output
XIN32
Slow Clock Oscillator Input
Input
XOUT32
Slow Clock Oscillator Output
Output
VBG
Bias Voltage Reference for USB
Analog
PCK0 - PCK1
Programmable Clock Output
Output
4
(1)
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Reference
Voltage
Comments
Shutdown, Wakeup Logic
SHDN
Shut-Down Control
Output
VDDBU
Driven at 0V only.
0: The device is in backup
mode
1: The device is running (not in
backup mode).
WKUP
Wake-Up Input
Input
VDDBU
Accept between 0V and
VDDBU.
ICE and JTAG
TCK
Test Clock
Input
VDDIOP0
No pull-up resistor, Schmitt
trigger
TDI
Test Data In
Input
VDDIOP0
No pull-up resistor, Schmitt
trigger
TDO
Test Data Out
Output
VDDIOP0
TMS
Test Mode Select
Input
VDDIOP0
No pull-up resistor, Schmitt
trigger
JTAGSEL
JTAG Selection
Input
VDDBU
Pull-down resistor (15 kΩ).
RTCK
Return Test Clock
Output
VDDIOP0
Reset/Test
VDDIOP0
Open-drain output,
Pull-Up resistor (100 kΩ),
Schmitt trigger
Input
VDDBU
Pull-down resistor (15 kΩ),
Schmitt trigger
Test Reset Signal
Input
VDDIOP0
Pull-Up resistor (100 kΩ),
Schmitt trigger
Boot Mode Select
Input
VDDIOP0
must be connected to GND or
VDDIOP.
NRST
Microcontroller Reset(2)
I/O
TST
Test Mode Select
NTRST
BMS
Low
Debug Unit - DBGU
DRXD
Debug Receive Data
Input
(1)
DTXD
Debug Transmit Data
Output
(1)
Advanced Interrupt Controller - AIC
IRQ
External Interrupt Input
Input
(1)
FIQ
Fast Interrupt Input
Input
(1)
PIO Controller - PIOA- PIOB - PIOC - PIOD - PIOE
PA0 - PA31
Parallel IO Controller A
I/O
(1)
PB0 - PB31
Parallel IO Controller B
I/O
(1)
Pulled-up input at reset
(100kΩ)(3), Schmitt trigger
Pulled-up input at reset
(100kΩ)(3), Schmitt trigger
5
11028BS–ATARM–26-Apr-10
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Reference
Voltage
PC0 - PC31
Parallel IO Controller C
I/O
(1)
PD0 - PD31
Parallel IO Controller D
I/O
(1)
PE0 - PE31
Parallel IO Controller E
I/O
(1)
Comments
Pulled-up input at reset
(100kΩ)(3), Schmitt trigger
Pulled-up input at reset
(100kΩ)(3), Schmitt trigger
Pulled-up input at reset
(100kΩ)(3), Schmitt trigger
DDR Memory Interface- DDR2/LPDDR Controller
DDR_D0 DDR_D15
Data Bus
I/O
VDDIOM0
Pulled-up input at reset
DDR_A0 DDR_A13
Address Bus
Output
VDDIOM0
0 at reset
DDR_CLK#DDR_CLK
DDR differential clock input
Output
VDDIOM0
DDR_CKE
DDR Clock Enable
Output
High
VDDIOM0
DDR_CS
DDR Chip Select
Output
Low
VDDIOM0
DDR_WE
DDR Write Enable
Output
Low
VDDIOM0
DDR_RASDDR_CAS
Row and Column Signal
Output
Low
VDDIOM0
DDR_DQM[0..1]
Write Data Mask
Output
VDDIOM0
DDR_DQS[0..1]
Data Strobe
Output
VDDIOM0
DDR_BA0 DDR_BA1
Bank Select
Output
VDDIOM0
DDR_VREF
Reference Voltage
Input
VDDIOM0
External Bus Interface - EBI
D0 -D31
Data Bus
I/O
VDDIOM1
Pulled-up input at reset
A0 - A25
Address Bus
Output
VDDIOM1
0 at reset
NWAIT
External Wait Signal
Input
Low
VDDIOM1
EBI - Static Memory Controller - SMC
NCS0 - NCS5
Chip Select Lines
Output
Low
VDDIOM1
NWR0 - NWR3
Write Signal
Output
Low
VDDIOM1
NRD
Read Signal
Output
Low
VDDIOM1
NWE
Write Enable
Output
Low
VDDIOM1
NBS0 - NBS3
Byte Mask Signal
Output
Low
VDDIOM1
EBI - CompactFlash Support
CFCE1 - CFCE2
CompactFlash Chip Enable
Output
Low
VDDIOM1
CFOE
CompactFlash Output Enable
Output
Low
VDDIOM1
CFWE
CompactFlash Write Enable
Output
Low
VDDIOM1
CFIOR
CompactFlash IO Read
Output
Low
VDDIOM1
6
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
CFIOW
CompactFlash IO Write
Output
CFRNW
CompactFlash Read Not Write
Output
CFCS0 -CFCS1
CompactFlash Chip Select Lines
Output
Active
Level
Low
Reference
Voltage
Comments
VDDIOM1
VDDIOM1
Low
VDDIOM1
EBI - NAND Flash Support
NANDCS
NAND Flash Chip Select
Output
Low
VDDIOM1
NANDOE
NAND Flash Output Enable
Output
Low
VDDIOM1
NANDWE
NAND Flash Write Enable
Output
Low
VDDIOM1
EBI - DDR2/SDRAM/LPDDR Controller
SDCK,#SDCK
DDR2/SDRAM differential clock
Output
VDDIOM1
SDCKE
DDR2/SDRAM Clock Enable
Output
High
VDDIOM1
SDCS
DDR2/SDRAM Controller Chip Select
Output
Low
VDDIOM1
BA0 - BA1
Bank Select
Output
SDWE
DDR2/SDRAM Write Enable
Output
Low
VDDIOM1
RAS - CAS
Row and Column Signal
Output
Low
VDDIOM1
SDA10
SDRAM Address 10 Line
Output
VDDIOM1
DQS[0..1]
Data Strobe
Output
VDDIOM1
DQM[0..3]
Write Data Mask
Output
VDDIOM1
VDDIOM1
High Speed Multimedia Card Interface - HSMCIx
MCIx_CK
Multimedia Card Clock
I/O
(1)
MCIx_CDA
Multimedia Card Slot A Command
I/O
(1)
MCIx_DA0 MCIx_DA7
Multimedia Card Slot A Data
I/O
(1)
Universal Synchronous Asynchronous Receiver Transmitter - USARTx
SCKx
USARTx Serial Clock
I/O
(1)
TXDx
USARTx Transmit Data
Output
(1)
RXDx
USARTx Receive Data
Input
(1)
RTSx
USARTx Request To Send
Output
(1)
CTSx
USARTx Clear To Send
Input
(1)
Synchronous Serial Controller - SSCx
TDx
SSC Transmit Data
Output
(1)
RDx
SSC Receive Data
Input
(1)
TKx
SSC Transmit Clock
I/O
(1)
RKx
SSC Receive Clock
I/O
(1)
TFx
SSC Transmit Frame Sync
I/O
(1)
RFx
SSC Receive Frame Sync
I/O
(1)
7
11028BS–ATARM–26-Apr-10
Table 3-1.
Signal Name
Signal Description List (Continued)
Function
Type
Active
Level
Reference
Voltage
Comments
AC97 Controller - AC97C
AC97RX
AC97 Receive Signal
Input
(1)
AC97TX
AC97 Transmit Signal
Output
(1)
AC97FS
AC97 Frame Synchronization Signal
Output
(1)
AC97CK
AC97 Clock signal
Input
(1)
Time Counter - TCx
TCLKx
TC Channel x External Clock Input
Input
(1)
TIOAx
TC Channel x I/O Line A
I/O
(1)
TIOBx
TC Channel x I/O Line B
I/O
(1)
Pulse Width Modulation Controller - PWM
PWMx
Pulse Width Modulation Output
(1)
Output
Serial Peripheral Interface - SPIx_
SPIx_MISO
Master In Slave Out
I/O
(1)
SPIx_MOSI
Master Out Slave In
I/O
(1)
SPIx_SPCK
SPI Serial Clock
I/O
(1)
SPIx_NPCS0
SPI Peripheral Chip Select 0
I/O
Low
(1)
SPIx_NPCS1SPIx_NPCS3
SPI Peripheral Chip Select
Output
Low
(1)
Two-Wire Interface
TWDx
Two-wire Serial Data
I/O
(1)
TWCKx
Two-wire Serial Clock
I/O
(1)
USB Host High Speed Port - UHPHS
HFSDPA
USB Host Port A Full Speed Data +
Analog
VDDUTMII
HFSDMA
USB Host Port A Full Speed Data -
Analog
VDDUTMII
HHSDPA
USB Host Port A High Speed Data +
Analog
VDDUTMII
HHSDMA
USB Host Port A High Speed Data -
Analog
VDDUTMII
HFSDPB
USB Host Port B Full Speed Data +
Analog
VDDUTMII
Multiplexed with DFSDP
HFSDMB
USB Host Port B Full Speed Data -
Analog
VDDUTMII
Multiplexed with DFSDM
HHSDPB
USB Host Port B High Speed Data +
Analog
VDDUTMII
Multiplexed with DHSDP
HHSDMB
USB Host Port B High Speed Data -
Analog
VDDUTMII
Multiplexed with DHSDM
USB Device High Speed Port - UDPHS
DFSDM
USB Device Full Speed Data -
Analog
VDDUTMII
DFSDP
USB Device Full Speed Data +
Analog
VDDUTMII
DHSDM
USB Device High Speed Data -
Analog
VDDUTMII
DHSDP
USB Device High Speed Data +
Analog
VDDUTMII
8
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Reference
Voltage
Comments
Ethernet 10/100
ETXCK
ERXCK
Transmit Clock or Reference Clock
Receive Clock
Input
(1)
MII only, REFCK in RMII
Input
(1)
MII only
ETXEN
Transmit Enable
Output
(1)
ETX0-ETX3
Transmit Data
Output
(1)
ETX0-ETX1 only in RMII
Output
(1)
MII only
Input
(1)
RXDV in MII, CRSDV in RMII
ERX0-ERX1 only in RMII
ETXER
ERXDV
Transmit Coding Error
Receive Data Valid
ERX0-ERX3
Receive Data
Input
(1)
ERXER
Receive Error
Input
(1)
ECRS
Carrier Sense and Data Valid
Input
(1)
MII only
Input
(1)
MII only
ECOL
Collision Detect
EMDC
Management Data Clock
Output
(1)
EMDIO
Management Data Input/Output
I/O
(1)
Image Sensor Interface
ISI_D0-ISI_D11
Image Sensor Data
Input
VDDIOP2
ISI_MCK
Image sensor Reference clock
output
VDDIOP2
ISI_HSYNC
Image Sensor Horizontal Synchro
input
VDDIOP2
ISI_VSYNC
Image Sensor Vertical Synchro
input
VDDIOP2
ISI_PCK
Image Sensor Data clock
input
VDDIOP2
LCD Controller - LCDC
LCDD0 LCDD23
LCD Data Bus
Output
VDDIOP1
LCDVSYNC
LCD Vertical Synchronization
Output
VDDIOP1
LCDHSYNC
LCD Horizontal Synchronization
Output
VDDIOP1
LCDDOTCK
LCD Dot Clock
Output
VDDIOP1
LCDDEN
LCD Data Enable
Output
VDDIOP1
LCDCC
LCD Contrast Control
Output
VDDIOP1
LCDPWR
LCD panel Power enable control
Output
VDDIOP1
LCDMOD
LCD Modulation signal
Output
VDDIOP1
Touch Screen Analog-to-Digital Converter
AD0XP
Analog input channel 0 or
Touch Screen Top channel
Analog
VDDANA
Multiplexed with AD0
AD1XM
Analog input channel 1 or
Touch Screen Bottom channel
Analog
VDDANA
Multiplexed with AD1
AD2YP
Analog input channel 2 or
Touch Screen Right channel
Analog
VDDANA
Multiplexed with AD2
9
11028BS–ATARM–26-Apr-10
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Reference
Voltage
Comments
Multiplexed with AD3
AD3YM
Analog input channel 3 or
Touch Screen Left channel
Analog
VDDANA
GPAD4-GPAD7
Analog Inputs
Analog
VDDANA
TSADTRG
ADC Trigger
Input
VDDANA
TSADVREF
ADC Reference
Analog
VDDANA
Notes:
1. Refer to peripheral multiplexing tables in Section 9.4 “Peripheral Signals Multiplexing on I/O Lines” for these signals.
2. When configured as an input, the NRST pin enables asynchronous reset of the device when asserted low. This allows connection of a simple push button on the NRST pin as a system-user reset.
3. Programming of this pull-up resistor is performed independently for each I/O line through the PIO Controllers. After reset, all
the I/O lines default as inputs with pull-up resistors enabled, except those which are multiplexed with the External Bus Interface signals that require to be enabled as Peripheral at reset. This is explicitly indicated in the column “Reset State” of the
peripheral multiplexing tables.
10
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
4. Package and Pinout
The AT91SAM9G46 is delivered in a 324-ball TFBGA package.
4.1
Mechanical Overview of the 324-ball TFBGA Package
Figure 4-1 shows the orientation of the 324-ball TFBGA Package
Figure 4-1.
Orientation of the 324-ball TFBGA Package
Bottom VIEW
V
U
T
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
1 2
3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18
11
11028BS–ATARM–26-Apr-10
4.2
324-ball TFBGA Package Pinout
Table 4-1.
AT91SAM9G46 Pinout for 324-ball BGA Package
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
Pin
A1
PC27
E10
NANDWE
K1
PE21
P10
Signal Name
TMS
A2
PC28
E11
DQS1
K2
PE23
P11
VDDPLLA
A3
PC25
E12
D13
K3
PE26
P12
PB20
A4
PC20
E13
D11
K4
PE22
P13
PB31
A5
PC12
E14
A4
K5
PE24
P14
DDR_D7
A6
PC7
E15
A8
K6
PE25
P15
DDR_D3
A7
PC5
E16
A9
K7
PE27
P16
DDR_D4
A8
PC0
E17
A7
K8
PE28
P17
DDR_D5
A9
NWR3/NBS3
E18
VDDCORE
K9
VDDIOP0
P18
DDR_D10
A10
NCS0
F1
PD22
K10
VDDIOP0
R1
PA18
A11
DQS0
F2
PD24
K11
GNDIOM
R2
PA20
A12
RAS
F3
SHDN
K12
GNDIOM
R3
PA24
A13
SDCK
F4
PE1
K13
VDDIOM0
R4
PA30
PB4
A14
NSDCK
F5
PE3
K14
DDR_A7
R5
A15
D7
F6
VDDIOM1
K15
DDR_A8
R6
PB13
A16
DDR_VREF
F7
PC19
K16
DDR_A9
R7
PD0
A17
D0
F8
PC14
K17
DDR_A11
R8
PD9
A18
A14
F9
PC4
K18
DDR_A10
R9
PD18
B1
PC31
F10
NCS1/SDCS
L1
PA0
R10
TDI
B2
PC29
F11
NRD
L2
PE30
R11
RTCK
B3
PC30
F12
SDWE
L3
PE29
R12
PB22
B4
PC22
F13
A0/NBS0
L4
PE31
R13
PB29
B5
PC17
F14
A1/NBS2/NWR2
L5
PA2
R14
DDR_D6
B6
PC10
F15
A3
L6
PA4
R15
DDR_D1
B7
PC11
F16
A6
L7
PA8
R16
DDR_D0
B8
PC2
F17
A5
L8
PD2
R17
HHSDMA
B9
SDA10
F18
A2
L9
PD13
R18
HFSDMA
B10
A17/BA1
G1
PD25
L10
PD29
T1
PA22
B11
DQM0
G2
PD23
L11
PD31
T2
PA25
B12
SDCKE
G3
PE6
L12
VDDIOM0
T3
PA26
B13
D12
G4
PE0
L13
VDDIOM0
T4
PB0
B14
D8
G5
PE2
L14
DDR_A1
T5
PB6
B15
D4
G6
PE8
L15
DDR_A3
T6
PB16
B16
D3
G7
PE4
L16
DDR_A4
T7
PD1
B17
A15
G8
PE11
L17
DDR_A6
T8
PD11
B18
A13
G9
GNDCORE
L18
DDR_A5
T9
PD19
C1
XIN32
G10
VDDIOM1
M1
PA1
T10
PD30
C2
GNDANA
G11
VDDIOM1
M2
PA5
T11
BMS
C3
WKUP
G12
VDDCORE
M3
PA6
T12
PB8
C4
PC26
G13
VDDCORE
M4
PA7
T13
PB30
C5
PC21
G14
DDR_DQM0
M5
PA10
T14
DDR_D2
C6
PC15
G15
DDR_DQS1
M6
PA14
T15
PB21
C7
PC9
G16
DDR_BA1
M7
PB14
T16
PB23
C8
PC3
G17
DDR_BA0
M8
PD4
T17
HHSDPA
C9
NWR0/NWE
G18
DDR_DQS0
M9
PD15
T18
HFSDPA
C10
A16/BA0
H1
PD26
M10
NRST
U1
PA27
C11
CAS
H2
PD27
M11
PB11
U2
PA29
C12
D15
H3
VDDIOP1
M12
PB25
U3
PA28
12
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Table 4-1.
AT91SAM9G46 Pinout for 324-ball BGA Package (Continued)
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
Pin
C13
D10
H4
PE13
M13
PB27
U4
Signal Name
PB3
C14
D6
H5
PE5
M14
VDDIOM0
U5
PB7
C15
D2
H6
PE7
M15
DDR_D14
U6
PB17
C16
GNDIOM
H7
PE9
M16
DDR_D15
U7
PD7
C17
A18
H8
PE10
M17
DDR_A0
U8
PD10
C18
A12
H9
GNDCORE
M18
DDR_A2
U9
PD14
D1
XOUT32
H10
GNDIOP
N1
PA3
U10
TCK
D2
PD20
H11
VDDCORE
N2
PA9
U11
VDDOSC
D3
GNDBU
H12
GNDIOM
N3
PA12
U12
GNDOSC
D4
VDDBU
H13
GNDIOM
N4
PA15
U13
PB10
D5
PC24
H14
DDR_CS
N5
PA16
U14
PB26
D6
PC18
H15
DDR_WE
N6
PA17
U15
HHSDPB/DHSDP
D7
PC13
H16
DDR_DQM1
N7
PB18
U16
HHSDMB/DHSDM
D8
PC6
H17
DDR_CAS
N8
PD6
U17
GNDUTMI
D9
NWR1/NBS1
H18
DDR_NCLK
N9
PD16
U18
VDDUTMIC
D10
NANDOE
J1
PE19
N10
NTRST
V1
PA31
D11
DQM1
J2
PE16
N11
PB9
V2
PB1
D12
D14
J3
PE14
N12
PB24
V3
PB2
D13
D9
J4
PE15
N13
PB28
V4
PB5
D14
D5
J5
PE12
N14
DDR_D13
V5
PB15
D15
D1
J6
PE17
N15
DDR_D8
V6
PD3
D16
VDDIOM1
J7
PE18
N16
DDR_D9
V7
PD5
D17
A11
J8
PE20
N17
DDR_D11
V8
PD12
D18
A10
J9
GNDCORE
N18
DDR_D12
V9
PD17
E1
PD21
J10
GNDCORE
P1
PA11
V10
TDO
E2
TSADVREF
J11
GNDIOP
P2
PA13
V11
XOUT
E3
VDDANA
J12
GNDIOM
P3
PA19
V12
XIN
E4
JTAGSEL
J13
GNDIOM
P4
PA21
V13
VDDPLLUTMI
E5
TST
J14
DDR_A12
P5
PA23
V14
VDDIOP2
E6
PC23
J15
DDR_A13
P6
PB12
V15
HFSDPB/DFSDP
E7
PC16
J16
DDR_CKE
P7
PB19
V16
HFSDMB/DFSDM
E8
PC8
J17
DDR_RAS
P8
PD8
V17
VDDUTMII
E9
PC1
J18
DDR_CLK
P9
PD28
V18
VBG
13
11028BS–ATARM–26-Apr-10
5. Power Considerations
5.1
Power Supplies
The AT91SAM9G46 has several types of power supply pins:
• VDDCORE pins: Power the core, including the processor, the embedded memories and the
peripherals; voltage ranges from 0.9V to 1.1V, 1.0V typical.
• VDDIOM0 pins: Power the DDR2/LPDDR I/O lines; voltage ranges between 1.65V and 1.95V
(1.8V typical).
• VDDIOM1 pins: Power the External Bus Interface 1 I/O lines; voltage ranges between 1.65V
and 1.95V (1.8V typical) or between 3.0V and 3.6V (3.3V typical).
• VDDIOP0, VDDIOP1, VDDIOP2 pins: Power the Peripherals I/O lines; voltage ranges from
1.65V to 3.6V.
• VDDBU pin: Powers the Slow Clock oscillator, the internal RC oscillator and a part of the
System Controller; voltage ranges from 1.8V to 3.6V.
• VDDPLLUTMI Powers the PLLUTMI cell; voltage range from 0.9V to 1.1V.
• VDDUTMIC pin: Powers the USB device and host UTMI+ core; voltage range from 0.9V to
1.1V, 1.0V typical.
• VDDUTMII pin: Powers the USB device and host UTMI+ interface; voltage range from 3.0V to
3.6V, 3.3V typical.
• VDDPLLA pin: Powers the PLLA cell; voltage ranges from 0.9V to 1.1V.
• VDDOSC pin: Powers the Main Oscillator cells; voltage ranges from 1.65V to 3.6V
• VDDANA pin: Powers the Analog to Digital Converter; voltage ranges from 3.0V to 3.6V, 3.3V
typical.
Ground pins GND are common to VDDIOM0, VDDIOM1, VDDIOP0, VDDIOP1 and VDDIOP2
power supplies. Separated ground pins are provided for VDDUTMIC, VDDUTMII, VDDBU,
VDDOSC, VDDPLLA, VDDPLLUTMI and VDDANA. These ground pins are respectively
GNDUTMIC, GNDUTMII, GNDBU, GNDOSC, GNDPLLA, GNDPLLUTMI and GNDANA.
14
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
6. Processor and Architecture
6.1
ARM926EJ-S Processor
• RISC Processor Based on ARM v5TEJ Architecture with DSP Instruction Extensions and
Jazelle® technology for Java® acceleration
• Two Instruction Sets
– ARM High-performance 32-bit Instruction Set
– Thumb High Code Density 16-bit Instruction Set
• 5-Stage Pipeline Architecture:
– Instruction Fetch (F)
– Instruction Decode (D)
– Execute (E)
– Data Memory (M)
– Register Write (W)
• 32-KByte Data Cache, 32-KByte Instruction Cache
– Virtually-addressed 4-way Associative Cache
– Eight words per line
– Write-through and Write-back Operation
– Pseudo-random or Round-robin Replacement
• Write Buffer
– Main Write Buffer with 16-word Data Buffer and 4-address Buffer
– DCache Write-back Buffer with 8-word Entries and a Single Address Entry
– Software Control Drain
• Standard ARM v4 and v5 Memory Management Unit (MMU)
– Access Permission for Sections
– Access Permission for large pages and small pages can be specified separately for
each quarter of the page
– 16 embedded domains
• Bus Interface Unit (BIU)
– Arbitrates and Schedules AHB Requests
– Separate Masters for both instruction and data access providing complete Matrix
system flexibility
– Separate Address and Data Buses for both the 32-bit instruction interface and the
32-bit data interface
– On Address and Data Buses, data can be 8-bit (Bytes), 16-bit (Half-words) or 32-bit
(Words)
• TCM Interface
15
11028BS–ATARM–26-Apr-10
6.2
Bus Matrix
• 12-layer Matrix, handling requests from 11 masters
• Programmable Arbitration strategy
– Fixed-priority Arbitration
– Round-Robin Arbitration, either with no default master, last accessed default master
or fixed default master
• Burst Management
– Breaking with Slot Cycle Limit Support
– Undefined Burst Length Support
• One Address Decoder provided per Master
– Three different slaves may be assigned to each decoded memory area: one for
internal ROM boot, one for internal flash boot, one after remap
• Boot Mode Select
– Non-volatile Boot Memory can be internal ROM or external memory on EBI_NCS0
– Selection is made by General purpose NVM bit sampled at reset
• Remap Command
– Allows Remapping of an Internal SRAM in Place of the Boot Non-Volatile Memory
(ROM or External Flash)
– Allows Handling of Dynamic Exception Vectors
6.2.1
Matrix Masters
The Bus Matrix of the AT91SAM9G46 manages Masters, thus each master can perform an
access concurrently with others, depending on whether the slave it accesses is available.
Each Master has its own decoder, which can be defined specifically for each master. In order to
simplify the addressing, all the masters have the same decodings.
Table 6-1.
16
List of Bus Matrix Masters
Master 0
ARM926™ Instruction
Master 1
ARM926 Data
Master 2
Peripheral DMA Controller (PDC)
Master 3
USB HOST OHCI
Master 4
DMA
Master 5
DMA
Master 6
ISI Controller DMA
Master 7
LCD DMA
Master 8
Ethernet MAC DMA
Master 9
USB Device High Speed DMA
Master 10
USB Host High Speed EHCI DMA
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
6.2.2
Matrix Slaves
Each Slave has its own arbiter, thus allowing a different arbitration per Slave to be programmed.
Table 6-2.
Slave 0
List of Bus Matrix Slaves
Internal SRAM
Internal ROM
USB OHCI
Slave 1
USB EHCI
UDP High Speed RAM
LCD User Interface
6.2.3
Slave 2
DDR Port 0
Slave 3
DDR Port 1
Slave 4
DDR Port 2
Slave 5
DDR Port 3
Slave 6
External Bus Interface
Slave 7
Internal Peripherals
Masters to Slaves Access
All the Masters can normally access all the Slaves. However, some paths do not make sense,
such as allowing access from the Ethernet MAC to the internal peripherals. Thus, these paths
are forbidden or simply not wired, and shown “-” in the following tables.
The four DDR ports are connected differently according to the application device.
The user can disable the DDR multi-port in the DDR multi-port Register (bit DDRMP_DIS) in the
Chip Configuration User Interface.
• When the DDR multi-port is enabled (DDRMP_DIS=0), the ARM instruction and data are
respectively connected to DDR Port 0 and DDR Port 1. The other masters share DDR Port 2
and DDR Port 3.
• When the DDR multi-port is disabled (DDRMP_DIS=1), DDR Port 1 is dedicated to the LCD
controller. The remaining masters share DDR Port 2 and DDR Port 3.
17
11028BS–ATARM–26-Apr-10
Figure 6-1.
DDR Multi-port
LCD
DMA
DDR_S1
ARM I
ARM D
ARM D
DDRMP_DIS
DDR_S2
MATRIX
DDR_S3
Table 6-3.
AT91SAM9G46 Masters to Slaves Access DDRMP_DIS = 0
Master
Slave
0
0
1
ARM
ARM
926 Instr. 926 Data
2
3
4&5
6
7
USB Host
OHCI
ISI
LCD
PDC
DMA
DMA
DMA
8
9
10
11
Ethernet
USB
USB Host
MAC
Device HS EHCI
Reserved
Internal SRAM 0
X
X
X
X
X
X
-
X
X
X
-
Internal ROM
X
X
X
-
-
-
-
-
X
-
-
UHP OHCI
X
X
-
-
-
-
-
-
-
-
-
UHP EHCI
X
X
-
-
-
-
-
-
-
-
-
LCD User Int.
X
X
-
-
-
-
-
-
-
-
-
UDPHS RAM
X
X
-
-
-
-
-
-
-
-
-
1
Reserved
X
X
-
-
-
-
-
-
-
-
-
2
DDR Port 0
X
-
-
-
-
-
-
-
-
-
-
3
DDR Port 1
-
X
-
-
-
-
-
-
-
-
-
4
DDR Port 2
-
-
X
X
X
X
-
X
X
X
X
5
DDR Port 3
-
-
X
X
X
X
X
X
X
X
-
6
EBI
X
X
X
X
X
X
X
X
X
X
X
7
Internal Periph.
X
X
X
-
X
-
-
-
-
-
-
18
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Table 6-4.
AT91SAM9G46 Masters to Slaves Access with DDRMP_DIS = 1 (default)
Master
Slave
0
0
1
ARM
ARM
926 Instr. 926 Data
2
3
4&5
6
7
ISI
LCD
PDC
USB
HOST
OHCI
DMA
DMA
DMA
8
9
10
11
Ethernet
USB
USB Host
MAC Device HS EHCI
Reserved
Internal SRAM 0
X
X
X
X
X
X
-
X
X
X
-
Internal ROM
X
X
X
-
-
-
-
-
X
-
-
UHP OHCI
X
X
-
-
-
-
-
-
-
-
-
UHP EHCI
X
X
-
-
-
-
-
-
-
-
-
LCD User Int.
X
X
-
-
-
-
-
-
-
-
-
UDPHS RAM
X
X
-
-
-
-
-
-
-
-
-
Reserved
X
X
-
-
-
-
-
-
-
-
-
2
DDR Port 0
-
-
-
-
-
-
-
-
-
-
X
3
DDR Port 1
-
-
-
-
-
-
X
-
-
-
-
4
DDR Port 2
X
-
X
X
X
X
-
X
X
X
-
5
DDR Port 3
-
X
X
X
X
X
-
X
X
X
-
6
EBI
X
X
X
X
X
X
X
X
X
X
X
7
Internal Periph.
X
X
X
-
X
-
-
-
-
-
-
1
Table 6-5 summarizes the Slave Memory Mapping for each connected Master, depending on
the Remap status (RCBx bit in Bus Matrix Master Remap Control Register MATRIX_MRCR) and
the BMS state at reset.
Table 6-5.
Internal Memory Mapping
Master
6.3
RCBx = 0
Slave
Base Address
BMS = 1
BMS = 0
0x0000 0000
Internal ROM
EBI NCS0
RCBx = 1
Internal SRAM
Peripheral DMA Controller (PDC)
• Acting as one AHB Bus Matrix Master
• Allows data transfers from/to peripheral to/from any memory space without any intervention
of the processor.
• Next Pointer support, prevents strong real-time constraints on buffer management.
19
11028BS–ATARM–26-Apr-10
The Peripheral DMA Controller handles transfer requests from the channel according to the following priorities (Low to High priorities):
Table 6-6.
6.4
Peripheral DMA Controller
Instance name
Channel T/R
DBGU
Transmit
USART3
Transmit
USART2
Transmit
USART1
Transmit
USART0
Transmit
AC97C
Transmit
TDES
Transmit
SHA
Transmit
SPI1
Transmit
SPI0
Transmit
SSC1
Transmit
SSC0
Transmit
TSADCC
Receive
DBGU
Receive
USART3
Receive
USART2
Receive
USART1
Receive
USART0
Receive
AC97C
Receive
TDES
Receive
SPI1
Receive
SPI0
Receive
SSC1
Receive
SSC0
Receive
USB
The AT91SAM9G46 features USB communication ports as follows:
• 2 Ports USB Host full speed OHCI and High speed EHCI
• 1 Device High speed
USB Host Port A is directly connected to the first UTMI transceiver.
The Host Port B is multiplexed with the USB device High speed and connected to the second
UTMI port. The selection between Host Port B and USB device high speed is controlled by a the
bit UDPHS enable bit located in the UDPHS_CTRL control register.
20
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Figure 6-2.
USB Selection
HS
Transceiver
HS
Transceiver
EN_UDPHS
0
PA
PB
HS EHCI
FS OHCI
DMA
6.5
1
HS
USB
DMA
DMA Controller
• Two Masters
• Embeds 8 channels
• 64 bytes/FIFO for Channel Buffering
• Linked List support with Status Write Back operation at End of Transfer
• Word, HalfWord, Byte transfer support.
• memory to memory transfer
• Peripheral to memory
• Memory to peripheral
The DMA controller can handle the transfer between peripherals and memory and so receives
the triggers from the peripherals below. The hardware interface numbers are also given below in
Table
Table 6-7.
DMA Channel Definition
Instance Name
T/R
DMA Channel HW
interface Number
MCI0
TX/RX
0
SPI0
TX
1
SPI0
RX
2
SPI1
TX
3
SPI1
RX
4
SSC0
TX
5
SSC0
RX
6
SSC1
TX
7
SSC1
RX
8
AC97C
TX
9
AC97C
RX
10
AES
TX
11
AES
RX
12
MCI1
TX/RX
13
21
11028BS–ATARM–26-Apr-10
6.6
Debug and Test Features
• ARM926 Real-time In-circuit Emulator
– Two real-time Watchpoint Units
– Two Independent Registers: Debug Control Register and Debug Status Register
– Test Access Port Accessible through JTAG Protocol
– Debug Communications Channel
• Debug Unit
– Two-pin UART
– Debug Communication Channel Interrupt Handling
– Chip ID Register
• IEEE®1149.1 JTAG Boundary-scan on All Digital Pins.
22
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
7. Memories
Figure 7-1.
AT91SAM9G46 Memory Mapping
Address Memory Space
Internal Memory Mapping
0x0000 0000
0x0000 0000
0x0010 0000
Internal Memories
256M Bytes
0x0020 0000
Notes:
(1) Can be ROM, EBI1_NCS0 or SRAM
0x0030 0000
depending on BMS and REMAP
(2) Software programmable
0x0FFF FFFF
0x1000 0000
EBI
Chip Select 0
0x0070 0000
256M Bytes
0xF000 0000
0x2FFF FFFF
256M Bytes
256M Bytes
1 MBytes
UDPHS RAM
UHP OHCI
1 MBytes
UHP EHCI
1 MBytes
VDEC
Reserved
1 MBytes
0x00A0 0000
UDPHS
16K Bytes
TCO, TC1, TC2
16K Bytes
MCI0
16K Bytes
TWI0
16K Bytes
TWI1
16K Bytes
1 MBytes
1 MBytes
Undefined
(Abort)
0x0FFF FFFF
0xFFF8 0000
0x4FFF FFFF
0x6FFF FFFF
1 MBytes
ROM
0xFFF7 C000
EBI
Chip Select 3/
NANDFlash
0x5FFF FFFF
SRAM
LCD User Interface
0xFFF7 8000
0x4000 0000
0x6000 0000
1 MBytes
0x0090 0000
Reserved
0x3FFF FFFF
0x5000 0000
0x0080 0000
Peripheral Mapping
0x3000 0000
EBI
Chip Select 2
1 MBytes
DTCM(2)
0x0050 0000
256M Bytes
0x0060 0000
EBI
Chip Select 1/
DDRSDRC1
ITCM(2)
0x0040 0000
0x1FFF FFFF
0x2000 0000
1 MBytes
Boot Memory (1)
EBI
Chip Select 4/
Compact Flash
Slot 0
0xFFF8 4000
256M Bytes
EBI
Chip Select 5/
Compact Flash
Slot 1
256M Bytes
DDRSDRC0
Chip Select
256M Bytes
0xFFF8 8000
System Controller Mapping
0xFFFF C000
0xFFF8 C000
USART0
16K Bytes
USART1
16K Bytes
USART2
16K Bytes
Reserved
0xFFF9 0000
0x7000 0000
0x7FFF FFFF
0x8000 0000
0xFFFF E200
0xFFF9 4000
0xFFF9 8000
USART3
16K Bytes
SSC0
16K Bytes
SSC1
16K Bytes
0xFFFA 4000
SPI0
16K Bytes
SPI1
16K Bytes
0xFFFA 8000
MATRIX
512 Bytes
DMAC
512 bytes
DBGU
512 Bytes
AIC
512 Bytes
PIOA
512 Bytes
PIOB
512 Bytes
PIOC
512 Bytes
PIOD
512 bytes
PIOE
512 bytes
PMC
256 Bytes
0xFFFF F200
AC97
16K Bytes
TSADC
16K Bytes
ISI
16K Bytes
PWMC
16K Bytes
EMAC
16K Bytes
AES
16K Bytes
TDES
16K Bytes
0xFFFB C000
0xFFFC 0000
0xFFFF F400
0xFFFF F600
0xFFFF F800
0xFFFF FA00
0xFFFF FC00
0xFFFF FD00
0xFFFC 4000
RSTC
16 Bytes
SHDC
16 Bytes
RTTC
16 Bytes
PITC
16 Bytes
0xFFFF FD10
0xFFFC 8000
SHA
16K Bytes
TRNG
16K Bytes
0xFFFC C000
0xFFFF FD20
0xFFFF FD30
0xFFFF FD40
0xFFFF FD50
0xFFFD 0000
MCI1
16K Bytes
0xFFFF FD60
TC3, TC4, TC5
16K Bytes
0xFFFF FD70
0xFFFD 4000
0xFFFF FFFF
512 Bytes
0xFFFF EE00
0xFFFB 4000
256M Bytes
512 Bytes
SMC
0xFFFF EC00
0xFFFB 8000
Internal Peripherals
DDRSDRC0
0xFFFF EA00
0xFFFB 0000
0xEFFF FFFF
512 Bytes
0xFFFF F000
0xFFFA C000
0xF000 0000
DDRSDRC1
0xFFFF E800
0xFFFA 0000
1,792M Bytes
512 Bytes
0xFFFF E600
0xFFF9 C000
Undefined
(Abort)
ECC
0xFFFF E400
0xFFFD 8000
WDTC
16 Bytes
SCKCR
16 Bytes
GPBR
16 Bytes
Reserved
0xFFFF FDB0
Reserved
0xFFFF C000
SYSC
0xFFFF FDC0
0xFFFF FFFF
RTCC
16 Bytes
Reserved
0xFFFF FFFF
23
11028BS–ATARM–26-Apr-10
7.1
Memory Mapping
A first level of address decoding is performed by the AHB Bus Matrix, i.e., the implementation of
the Advanced High performance Bus (AHB) for its Master and Slave interfaces with additional
features.
Decoding breaks up the 4 Gbytes of address space into 16 banks of 256 Mbytes. The banks 1 to
6 are directed to the EBI that associates these banks to the external chip selects NCS0 to
NCS5.
The bank 7 is directed to the DDRSDRC0 that associates this bank to DDR_NCS chip select
and so dedicated to the 4-port DDR2/ LPDDR controller.
The bank 0 is reserved for the addressing of the internal memories, and a second level of
decoding provides 1 Mbyte of internal memory area. The bank 15 is reserved for the peripherals
and provides access to the Advanced Peripheral Bus (APB).
Other areas are unused and performing an access within them provides an abort to the master
requesting such an access.
7.2
7.2.1
Embedded Memories
Internal SRAM
The AT91SAM9G46 product embeds a total of 64 Kbytes high-speed SRAM split in 4 blocks of
16 KBytes connected to one slave of the matrix. After reset and until the Remap Command is
performed, the four SRAM blocks are contiguous and only accessible at address 0x00300000.
After Remap, the SRAM also becomes available at address 0x0.
Figure 7-2.
Internal SRAM Reset
RAM
RAM
Remap
64K
0x00300000
64K
0x00000000
The AT91SAM9G46 device embeds two memory features. The processor Tightly Coupled Memory Interface (TCM) that allows the processor to access the memory up to processor speed
(PCK) and the interface on the AHB side allowing masters to access the memory at AHB speed
(MCK).
A wait state is necessary to access the TCM at 400 MHz. Setting the bit NWS_TCM in the bus
Matrix TCM Configuration Register of the matrix inserts a wait state on the ITCM and DTCM
accesses.
24
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
7.2.2
TCM Interface
On the processor side, this Internal SRAM can be allocated to two areas.
• Internal SRAM A is the ARM926EJ-S Instruction TCM. The user can map this SRAM block
anywhere in the ARM926 instruction memory space using CP15 instructions and the TCR
configuration register located in the Chip Configuration User Interface. This SRAM block is
also accessible by the ARM926 Masters and by the AHB Masters through the AHB bus
• Internal SRAM B is the ARM926EJ-S Data TCM. The user can map this SRAM block
anywhere in the ARM926 data memory space using CP15 instructions. This SRAM block is
also accessible by the ARM926 Data Master and by the AHB Masters through the AHB bus.
• Internal SRAM C is only accessible by all the AHB Masters. After reset and until the Remap
Command is performed, this SRAM block is accessible through the AHB bus at address
0x0030 0000 by all the AHB Masters. After Remap, this SRAM block also becomes
accessible through the AHB bus at address 0x0 by the ARM926 Instruction and the ARM926
Data Masters.
Within the 64 Kbyte SRAM size available, the amount of memory assigned to each block is software programmable according to Table 7-1.
Table 7-1.
ITCM and DTCM Memory Configuration
SRAM A ITCM size (KBytes)
seen at 0x100000 through AHB
SRAM B DTCM size (KBytes)
seen at 0x200000 through AHB
SRAM C (KBytes)
seen at 0x300000 through AHB
0
0
64
0
64
0
32
32
0
7.2.3
Internal ROM
The AT91SAM9G46 embeds an Internal ROM, which contains the bootrom and SAM-BA
program.
At any time, the ROM is mapped at address 0x0040 0000. It is also accessible at address 0x0
(BMS =1) after the reset and before the Remap Command.
7.2.4
Boot Strategies
The system always boots at address 0x0. To ensure maximum boot possibilities the memory
layout can be changed with two parameters.
REMAP allows the user to layout the internal SRAM bank to 0x0 to ease the development. This
is done by software once the system has boot.
BMS allows the user to lay out to 0x0, when convenient, the ROM or an external memory. This is
done by a hardware way at reset.
Note: All the memory blocks can always be seen at their specified base addresses that are not
concerned by these parameters.
The AT91SAM9G46 Bus Matrix manages a boot memory that depends on the level on the pin
BMS at reset. The internal memory area mapped between address 0x0 and 0x000F FFFF is
reserved to this effect.
25
11028BS–ATARM–26-Apr-10
If BMS is detected at 1, the boot memory is the embedded ROM.
If BMS is detected at 0, the boot memory is the memory connected on the Chip Select 0 of the
External Bus Interface.
7.2.4.1
BMS = 1, boot on embedded ROM
The system boots on Boot Program.
• Boot on on-chip RC
• Enable the 32768 Hz oscillator
• Auto baudrate detection
• Downloads and runs an application from external storage media into internal SRAM
• Downloaded code size depends on embedded SRAM size
• Automatic detection of valid application
• Bootloader on a non-volatile memory
– SPI DataFlash/SerialFlash connected on NPCS0 of the SPI0
– SDCard
– NandFlash
– EEPROM connected on TWI0
• SAM-BA Boot in case no valid program is detected in external NVM, supporting
– Serial communication on a DBGU
– USB Device HS Port
7.2.4.2
BMS = 0, boot on external memory
• Boot on on-chip RC
• Boot with the default configuration for the Static Memory Controller, byte select mode, 16-bit
data bus, Read/Write controlled by Chip Select, allows boot on 16-bit non-volatile memory.
For optimization purpose, nothing else is done. To speed up the boot sequence user programmed software should perform a complete configuration:
• Enable the 32768 Hz oscillator if best accuracy needed
• Program the PMC (main oscillator enable or bypass mode)
• Program and Start the PLL
• Reprogram the SMC setup, cycle, hold, mode timings registers for EBI CS0 to adapt them to
the new clock
• Switch the main clock to the new value
26
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
7.3
External Memories
The AT91SAM9G46 features a Multi-port DDR2 Interface and an External Bus Interface allowing to connect to a wide range of external memories and to any parallel peripheral.
7.3.1
DDRSDRC0 Multi-port DDRSDR Controller
Four AHB Interfaces, Management of All Accesses Maximizes Memory Bandwidth and Minimizes Transaction Latency.
• Supports AHB Transfers:
– Word, Half Word, Byte Access.
• Supports DDR2, LPDDR
• Numerous Configurations Supported
– 2K, 4K, 8K, 16K Row Address Memory Parts
– DDR2 with Four Internal Banks
– DDR2/LPDDR with 16-bit Data Path
– One Chip Select for DDR2/LPDDR Device (256 Mbytes Address Space)
• Programming Facilities
– Multibank Ping-pong Access (Up to 4 Banks Opened at Same Time = Reduces
Average Latency of Transactions)
– Timing Parameters Specified by Software
– Automatic Refresh Operation, Refresh Rate is Programmable
– Automatic Update of DS, TCR and PASR Parameters
• Energy-saving Capabilities
– Self-refresh, Power-down and Deep Power Modes Supported
• Power-up Initialization by Software
• CAS Latency of 2, 3 Supported
• Reset function supported (DDR2)
• Auto Precharge Command Not Used
• On Die Termination not supported
• OCD mode not supported
7.3.2
External Bus Interface
• Integrates Three External Memory Controllers:
– Static Memory Controller
– DDR2/SDRAM Controller
– SLC Nand Flash ECC Controller
• Additional logic for NAND Flash and CompactFlashTM
• Optional Full 32-bit External Data Bus
• Up to 26-bit Address Bus (up to 64MBytes linear per chip select)
• Up to 6 chip selects, Configurable Assignment:
– Static Memory Controller on NCS0
– DDR2/SDRAM Controller (SDCS) or Static Memory Controller on NCS1
– Static Memory Controller on NCS2
27
11028BS–ATARM–26-Apr-10
– Static Memory Controller on NCS3, Optional NAND Flash support
– Static Memory Controller on NCS4 - NCS5, Optional CompactFlashM support
7.3.2.1
Static Memory Controller
• 8-, 16- or 32-bit Data Bus
• Multiple Access Modes supported
– Byte Write or Byte Select Lines
– Asynchronous read in Page Mode supported (4- up to 32-byte page size)
• Multiple device adaptability
– Control signals programmable setup, pulse and hold time for each Memory Bank
• Multiple Wait State Management
– Programmable Wait State Generation
– External Wait Request
– Programmable Data Float Time
• Slow Clock mode supported
7.3.2.2
DDR2/SDR Controller
• Supports DDR2/LPDDR2, SDR-SDRAM and LPSDR
• Numerous Configurations Supported
– 2K, 4K, 8K, 16K Row Address Memory Parts
– SDRAM with Four Internal Banks
– SDR-SDRAM with 16- or 32- bit Data Path
– DDR2/LPDDR with 16- bit Data Path
– One Chip Select for SDRAM Device (256 Mbyte Address Space)
• Programming Facilities
– Multibank Ping-pong Access (Up to 4 Banks Opened at Same Time = Reduces
Average Latency of Transactions)
– Timing Parameters Specified by Software
– Automatic Refresh Operation, Refresh Rate is Programmable
– Automatic Update of DS, TCR and PASR Parameters (LPSDR)
• Energy-saving Capabilities
– Self-refresh, Power-down and Deep Power Modes Supported
• SDRAM Power-up Initialization by Software
• CAS Latency of 2, 3 Supported
• Auto Precharge Command Not Used
• SDR-SDRAM with 16-bit Datapath and Eight Columns Not Supported
– Clock Frequency Change in Precharge Power-down Mode Not Supported
7.3.2.3
NAND Flash Error Corrected Code Controller
• Tracking the accesses to a NAND Flash device by triggering on the corresponding chip select
• Single bit error correction and 2-bit Random detection.
• Automatic Hamming Code Calculation while writing
28
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
– ECC value available in a register
• Automatic Hamming Code Calculation while reading
– Error Report, including error flag, correctable error flag and word address being
detected erroneous
– Support 8- or 16-bit NAND Flash devices with 512-, 1024-, 2048- or 4096-bytes
pages.
29
11028BS–ATARM–26-Apr-10
8. System Controller
The System Controller is a set of peripherals that allows handling of key elements of the system,
such as power, resets, clocks, time, interrupts, watchdog, etc.
The System Controller User Interface also embeds the registers that configure the Matrix and a
set of registers for the chip configuration. The chip configuration registers configure the EBI chip
select assignment and voltage range for external memories.
8.1
System Controller Mapping
The System Controller’s peripherals are all mapped within the highest 16 KBytes of address
space, between addresses 0xFFFF E800 and 0xFFFF FFFF.
However, all the registers of the System Controller are mapped on the top of the address space.
All the registers of the System Controller can be addressed from a single pointer by using the
standard ARM instruction set, as the Load/Store instruction have an indexing mode of ±4 KB.
Figure 8-1 on page 31 shows the System Controller block diagram.
Figure 7-1 on page 23 shows the mapping of the User Interfaces of the System Controller
peripherals.
30
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
8.2
System Controller Block Diagram
Figure 8-1.
AT91SAM9G46 System Controller Block Diagram
System Controller
VDDCORE Powered
irq0-irq2
fiq
periph_irq[2..24]
nirq
nfiq
Advanced
Interrupt
Controller
pit_irq
rtt_irq
wdt_irq
dbgu_irq
pmc_irq
rstc_irq
int
ntrst
por_ntrst
MCK
periph_nreset
Debug
Unit
dbgu_irq
dbgu_txd
dbgu_rxd
MCK
debug
periph_nreset
proc_nreset
PCK
debug
Periodic
Interval
Timer
pit_irq
Watchdog
Timer
wdt_irq
jtag_nreset
SLCK
debug
idle
proc_nreset
ARM926EJ-S
Boundary Scan
TAP Controller
MCK
wdt_fault
WDRPROC
NRST
periph_nreset
Bus Matrix
rstc_irq
por_ntrst
jtag_nreset
VDDCORE
POR
Reset
Controller
periph_nreset
proc_nreset
backup_nreset
VDDBU
VDDBU
POR
VDDBU Powered
SLCK
UPLLCK
UHP48M
SLCK
backup_nreset
Real-Time
Clock
SLCK
backup_nreset
Real-Time
Timer
rtc_irq
rtc_alarm
UHP12M
rtt_irq
periph_nreset
rtt_alarm
periph_irq[25]
USB High Speed
Host Port
SLCK
SHDN
WKUP
backup_nreset
RC
OSC
XIN32
XOUT32
SLOW
CLOCK
OSC
rtt0_alarm
4 General-purpose
Backup Registers
XIN
periph_nreset
USB High Speed
Device Port
periph_irq[24]
SCKCR
SLCK
XOUT
UPLLCK
Shut-Down
Controller
int
12MHz
MAIN OSC
MAINCK
UPLL
UPLLCK
PLLA
PLLACK
Power
Management
Controller
periph_clk[2..30]
pck[0-1]
UHP48M
UHP12M
PCK
MCK
DDR sysclk
pmc_irq
idle
periph_clk[6..30]
periph_nreset
periph_nreset
periph_nreset
periph_clk[2..6]
dbgu_rxd
PA0-PA31
PB0-PB31
PC0-PC31
PD0-PD31
PIO
Controllers
periph_irq[2..6]
irq
fiq
dbgu_txd
Embedded
Peripherals
periph_irq[6..30]
in
out
enable
PE0-PE31
31
11028BS–ATARM–26-Apr-10
8.3
Reset Controller
The Reset Controller is based on two Power-on-Reset cells, one on VDDBU and one on
VDDCORE.
The Reset Controller is capable to return to the software the source of the last reset, either a
general reset (VDDBU rising), a wake-up reset (VDDCORE rising), a software reset, a user
reset or a watchdog reset.
The Reset Controller controls the internal resets of the system and the NRST pin output. It is
capable to shape a reset signal for the external devices, simplifying to a minimum connection of
a push-button on the NRST pin to implement a manual reset.
The configuration of the Reset Controller is saved as supplied on VDDBU.
8.4
Shut Down Controller
The Shut Down Controller is supplied on VDDBU and allows a software-controllable shut down
of the system through the pin SHDN. An input change of the WKUP pin or an alarm releases the
SHDN pin, and thus wakes up the system power supply.
8.5
Clock Generator
The Clock Generator is made up of:
• One Low Power 32768 Hz Slow Clock Oscillator with bypass mode
• One Low-Power RC oscillator
• One 12 MHz Main Oscillator, which can be bypassed
• One 400 to 800 MHz programmable PLLA, capable to provide the clock MCK to the
processor and to the peripherals. This PLL has an input divider to offer a wider range of
output frequencies from the 12 MHz input, the only limitation being the lowest input frequency
shall be higher or equal to 2 MHz.
The USB Device and Host HS Clocks are provided by a the dedicated UTMI PLL (UPLL)
embedded in the UTMI macro.
32
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Figure 8-2.
Clock Generator Block Diagram
Clock Generator
RCEN
On Chip
RC OSC
XIN32
XOUT32
Slow Clock
SLCK
Slow Clock
Oscillator
OSCSEL
OSC32EN
OSC32BYP
XIN
12M Main
Oscillator
Main Clock
MAINCK
XOUT
UPLL
UPLLCK
PLLA and
Divider
Status
PLLA Clock
PLLACK
Control
Power
Management
Controller
8.6
Slow Clock Selection
The AT91SAM9G46 slow clock can be generated either by an external 32768Hz crystal or the
on-chip RC oscillator. The 32768 Hz crystal oscillator can be bypassed, by setting the bit
OSC32BYP, to accept an external slow clock on XIN32.
The internal RC oscillator and the 32768 Hz oscillator can be enabled by setting to 1 respectively RCEN bit and OSC32EN bit in the system controller user interface. OSCSEL command
selects the slow clock source.
RCEN, OSC32EN,OSCSEL and OSC32BYP bits are located in the slow clock control register
(SCKCR) located at address 0xFFFFFD50 in the backup part of the system controller and so are
preserved while VDDBU is present.
33
11028BS–ATARM–26-Apr-10
Figure 8-3.
Slow Clock
Clock Generator
RCEN
On Chip
RC OSC
Slow Clock
SLCK
XIN32
Slow Clock
Oscillator
XOUT32
OSCSEL
OSC32EN
OSC32BYP
After a VDDBU power on reset, the default configuration is RCEN = 1, OSC32EN = 0 and OSCSEL = 0 allowing the system to start on the internal RC oscillator.
The programmer controls by software the slow clock switching and so must take precautions
during the switching phase.
8.6.1
Switch from Internal RC Oscillator to the 32768 Hz Crystal
To switch from internal RC oscillator to the 32768 Hz crystal, the programmer must execute the
following sequence:
• Switch the master clock to a source different from slow clock (PLLA or PLLB or Main
Oscillator) through the Power Management Controller.
• Enable the 32768 Hz oscillator by setting the bit OSCEN to 1.
• Wait 32768 Hz startup time for clock stabilization (software loop).
• Switch from internal RC to 32768 Hz by setting the bit OSCSEL to 1.
• Wait 5 slow clock cycles for internal resynchronization.
• Disable the RC oscillator by setting the bit RCEN to 0.
8.6.2
Bypass the 32768 Hz Oscillator
The following step must be added to bypass the 32768 Hz Oscillator.
• An external clock must be connected on XIN32.
• Enable the bypass path OSC32BYP bit set to 1.
• Disable the 32768 Hz oscillator by setting the bit OSC32EN to 0.
8.6.3
Switch from 32768 Hz Crystal to the Internal RC Oscillator
The same procedure must be followed to switch from 32768 Hz crystal to the internal RC
oscillator.
• Switch the master clock to a source different from slow clock (PLLA or PLLB or Main
Oscillator).
• Enable the internal RC oscillator by setting the bit RCEN to 1.
• Wait internal RC Startup Time for clock stabilization (software loop).
34
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
• Switch from 32768 Hz oscillator to internal RC oscilllator by setting the bit OSCSEL to 0.
• Wait 5 slow clock cycles for internal resynchronization.
• Disable the 32768Hz oscillator by setting the bit OSC32EN to 0.
8.7
Power Management Controller
The Power Management Controller provides all the clock signals to the system.
PMC input clocks:
• UPLLCK: From UTMI PLL
• PLLACK From PLLA
• SLCK: slow clock from OSC32K or internal RC OSC
• MAINCK: from 12 MHz external oscillator
PMC output clocks
• Processor Clock PCK
• Master Clock MCK, in particular to the Matrix and the memory interfaces. The divider can be
1,2,3 or 4
• DDR system clock equal to 2xMCK
Note:
DDR system clock is not available when Master Clock (MCK) equals Processor Clock (PCK).
• USB Host EHCI High speed clock (UPLLCK)
• USB OHCI clocks (UHP48M and UHP12M)
• Independent peripheral clocks, typically at the frequency of MCK
• Two programmable clock outputs: PCK0 and PCK1
This allows the software control of five flexible operating modes:
• Normal Mode, processor and peripherals running at a programmable frequency
• Idle Mode, processor stopped waiting for an interrupt
• Slow Clock Mode, processor and peripherals running at low frequency
• Standby Mode, mix of Idle and Backup Mode, peripheral running at low frequency, processor
stopped waiting for an interrupt
• Backup Mode, Main Power Supplies off, VDDBU powered by a battery
35
11028BS–ATARM–26-Apr-10
Figure 8-4.
AT91SAM9G46 Power Management Controller Block Diagram
PLLACK
USBS
UHP48M
USBDIV+1
USB
OHCI
UHP12M
/4
USB
EHCI
/1,/2
PCK
Processor
Clock
Controller
UPLLCK
int
Divider
MAINCK
SLCK
Prescaler
/1,/2,/4,.../64
X /1 /1.5 /2
SysClk DDR
/1 /2
MCK
/3 /4
Peripherals
Clock Controller
ON/OFF
Master Clock Controller
SLCK
MAINCK
periph_clk[..]
ON/OFF
Prescaler
/1,/2,/4,...,/64
pck[..]
UPLLCK
Programmable Clock Controller
8.7.1
8.7.1.1
Main Application Modes
The Power Management Controller provides 3 main application modes.
Normal Mode
• PLLA and UPLL are running respectively at 400 MHz and 480 MHz
• USB Device High Speed and Host EHCI High Speed operations are allowed
• Full Speed OHCI input clock is UPLLCK, USBDIV is 9 (division by 10)
• System Input clock is PLLACK, PCK is 400 MHz
• MDIV is ‘11’, MCK is 133 MHz
• DDR2 can be used at up to 133 MHz
8.7.1.2
USB HS and LP-DDR Mode
• Only UPLL is running at 480 MHz, PLLA power consumption is saved
• USB Device High Speed and Host EHCI High Speed operations are allowed
• Full Speed OHCI input clock is UPLLCK, USBDIV is 9 (division by 10)
• System Input clock is UPLLCK, Prescaler is 2, PCK is 240 MHz
• MDIV is ‘01’, MCK is 120 MHz
• Only LP-DDR can be used at up to 120 MHz
36
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
8.7.1.3
No UDP HS, UHP FS and DDR2 Mode
• Only PLLA is running at 384 MHz, UPLL power consumption is saved
• USB Device High Speed and Host EHCI High Speed operations are NOT allowed
• Full Speed OHCI input clock is PLLACK, USBDIV is 7 (division by 8)
• System Input clock is PLLACK, PCK is 384 MHz
• MDIV is ‘11’, MCK is 128 MHz
• DDR2 can be used at up to 128 MHz
8.8
Periodic Interval Timer
• Includes a 20-bit Periodic Counter, with less than 1µs accuracy
• Includes a 12-bit Interval Overlay Counter
• Real Time OS or Linux/WinCE compliant tick generator
8.9
Watchdog Timer
• 16-bit key-protected only-once-Programmable Counter
• Windowed, prevents the processor to be in a dead-lock on the watchdog access
8.10
Real-Time Timer
• Real-Time Timer, allowing backup of time with different accuracies
– 32-bit Free-running back-up Counter
– Integrates a 16-bit programmable prescaler running on slow clock
– Alarm Register capable to generate a wake-up of the system through the Shut Down
Controller
8.11
Real Time Clock
• Low power consumption
• Full asynchronous design
• Two hundred year calendar
• Programmable Periodic Interrupt
• Alarm and update parallel load
• Control of alarm and update Time/Calendar Data In
8.12
General-Purpose Backup Registers
• Four 32-bit backup general-purpose registers
8.13
Advanced Interrupt Controller
• Controls the interrupt lines (nIRQ and nFIQ) of the ARM Processor
• Thirty-two individually maskable and vectored interrupt sources
– Source 0 is reserved for the Fast Interrupt Input (FIQ)
– Source 1 is reserved for system peripherals (PIT, RTT, PMC, DBGU, etc.)
– Programmable Edge-triggered or Level-sensitive Internal Sources
– Programmable Positive/Negative Edge-triggered or High/Low Level-sensitive
37
11028BS–ATARM–26-Apr-10
• One External Sources plus the Fast Interrupt signal
• 8-level Priority Controller
– Drives the Normal Interrupt of the processor
– Handles priority of the interrupt sources 1 to 31
– Higher priority interrupts can be served during service of lower priority interrupt
• Vectoring
– Optimizes Interrupt Service Routine Branch and Execution
– One 32-bit Vector Register per interrupt source
– Interrupt Vector Register reads the corresponding current Interrupt Vector
• Protect Mode
– Easy debugging by preventing automatic operations when protect modes are
enabled
• Fast Forcing
– Permits redirecting any normal interrupt source on the Fast Interrupt of the
processor
8.14
Debug Unit
• Composed of two functions
– Two-pin UART
– Debug Communication Channel (DCC) support
• Two-pin UART
– Implemented features are 100% compatible with the standard Atmel USART
– Independent receiver and transmitter with a common programmable Baud Rate
Generator
– Even, Odd, Mark or Space Parity Generation
– Parity, Framing and Overrun Error Detection
– Automatic Echo, Local Loopback and Remote Loopback Channel Modes
– Support for two PDC channels with connection to receiver and transmitter
• Debug Communication Channel Support
– Offers visibility of and interrupt trigger from COMMRX and COMMTX signals from
the ARM Processor’s ICE Interface
8.15
Chip Identification
The AT91SAM9G46 Chip ID is defined in the Debug Unit Chip ID Register and Debug Unit Chip
ID Extension Register.
• Chip ID: 0x819B05A2
• Ext ID: 0x00000003
• JTAG ID: 05B2_703F
• ARM926 TAP ID: 0x0792603F
38
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
8.16
PIO Controllers
• 5 PIO Controllers, PIOA, PIOB, PIOC, PIOD and PIOE, controlling a maximum of 160 I/O
Lines
• Each PIO Controller controls up to 32 programmable I/O Lines
– PIOA has 32 I/O Lines
– PIOB has 32 I/O Lines
– PIOC has 32 I/O Lines
– PIOD has 32 I/O Lines
– PIOE has 32 I/O Lines
• Fully programmable through Set/Clear Registers
• Multiplexing of two peripheral functions per I/O Line
• For each I/O Line (whether assigned to a peripheral or used as general purpose I/O)
– Input change interrupt
– Glitch filter
– Multi-drive option enables driving in open drain
– Programmable pull up on each I/O line
– Pin data status register, supplies visibility of the level on the pin at any time
• Synchronous output, provides Set and Clear of several I/O lines in a single write
39
11028BS–ATARM–26-Apr-10
9. Peripherals
9.1
Peripheral Mapping
As shown in Figure 7-1, the Peripherals are mapped in the upper 256 Mbytes of the address
space between the addresses 0xFFF7 8000 and 0xFFFC FFFF.
Each User Peripheral is allocated 16K bytes of address space.
9.2
Peripheral Identifiers
Table 9-1 defines the Peripheral Identifiers of the AT91SAM9G46. A peripheral identifier is
required for the control of the peripheral interrupt with the Advanced Interrupt Controller and for
the control of the peripheral clock with the Power Management Controller.
Table 9-1.
40
AT91SAM9G46 Peripheral Identifiers
Peripheral ID
Peripheral Mnemonic
Peripheral Name
0
AIC
Advanced Interrupt Controller
1
SYS
System Controller Interrupt
2
PIOA
Parallel I/O Controller A,
3
PIOB
Parallel I/O Controller B
4
PIOC
Parallel I/O Controller C
5
PIOD, PIOE
External Interrupt
FIQ
Parallel I/O Controller D, Parallel I/O Controller E
6
TRNG
7
USART0
True Random Number Generator
USART 0
8
USART1
USART 1
9
USART2
USART 2
10
USART3
USART 3
11
MCI0
High Speed Multimedia Card Interface 0
12
TWI0
Two-Wire Interface 0
13
TWI1
Two-Wire Interface 1
14
SPI0
Serial Peripheral Interface
15
SPI1
Serial Peripheral Interface
16
SSC0
Synchronous Serial Controller 0
17
SSC1
Synchronous Serial Controller 1
18
TC0 .. TC5
Timer Counter 0 .. Timer Counter 5
19
PWM
Pulse Width Modulation Controller
20
TSADCC
21
DMAC
DMA Controller
22
UHPHS
USB Host High Speed
23
LCDC
LCD Controller
24
AC97C
AC97 Controller
25
EMAC
Ethernet MAC
26
ISI
Image Sensor Interface
27
UDPHS
USB Device High Speed
28
AES, TDES, SHA
Touch Screen ADC Controller
Advanced Encryption Standard, Triple Data Encryption
Standard, Secure Hash Algorithm
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Table 9-1.
AT91SAM9G46 Peripheral Identifiers (Continued)
Peripheral ID
9.3
9.3.1
Peripheral Mnemonic
29
MCI1
30
Reserved
31
AIC
Peripheral Name
External Interrupt
High Speed Multimedia Card Interface 1
Advanced Interrupt Controller
IRQ
Peripheral Interrupts and Clock Control
System Interrupt
The System Interrupt in Source 1 is the wired-OR of the interrupt signals coming from:
• the DDR2/LPDDR Controller
• the Debug Unit
• the Periodic Interval Timer
• the Real-Time Timer
• the Real-Time Clock
• the Watchdog Timer
• the Reset Controller
• the Power Management Controller
The clock of these peripherals cannot be deactivated and Peripheral ID 1 can only be used
within the Advanced Interrupt Controller.
9.3.2
9.4
External Interrupts
All external interrupt signals, i.e., the Fast Interrupt signal FIQ or the Interrupt signal IRQ, use a
dedicated Peripheral ID. However, there is no clock control associated with these peripheral IDs.
Peripheral Signals Multiplexing on I/O Lines
The AT91SAM9G46 features 5 PIO controllers, PIOA, PIOB, PIOC, PIOD and PIOE, which multiplexes the I/O lines of the peripheral set.
Each PIO Controller controls up to 32 lines. Each line can be assigned to one of two peripheral
functions, A or B. The multiplexing tables in the following paragraphs define how the I/O lines of
the peripherals A and B are multiplexed on the PIO Controllers. The two columns “Function” and
“Comments” have been inserted in this table for the user’s own comments; they may be used to
track how pins are defined in an application.
Note that some peripheral function which are output only, might be duplicated within the both
tables.
The column “Reset State” indicates whether the PIO Line resets in I/O mode or in peripheral
mode. If I/O is mentioned, the PIO Line resets in input with the pull-up enabled, so that the
device is maintained in a static state as soon as the reset is released. As a result, the bit corresponding to the PIO Line in the register PIO_PSR (Peripheral Status Register) resets low.
If a signal name is mentioned in the “Reset State” column, the PIO Line is assigned to this function and the corresponding bit in PIO_PSR resets high. This is the case of pins controlling
memories, in particular the address lines, which require the pin to be driven as soon as the reset
is released. Note that the pull-up resistor is also enabled in this case.
To amend EMC, programmable delay has been inserted on PIO lines able to run at high speed.
41
11028BS–ATARM–26-Apr-10
9.4.1
PIO Controller A Multiplexing
Table 9-2.
Multiplexing on PIO Controller A (PIOA)
I/O Line
Peripheral A
Peripheral B
Reset
State
Power
Supply
PA0
MCI0_CK
TCLK3
I/O
VDDIOP0
PA1
MCI0_CDA
TIOA3
I/O
VDDIOP0
PA2
MCI0_DA0
TIOB3
I/O
VDDIOP0
PA3
MCI0_DA1
TCKL4
I/O
VDDIOP0
PA4
MCI0_DA2
TIOA4
I/O
VDDIOP0
PA5
MCI0_DA3
TIOB4
I/O
VDDIOP0
PA6
MCI0_DA4
ETX2
I/O
VDDIOP0
PA7
MCI0_DA5
ETX3
I/O
VDDIOP0
PA8
MCI0_DA6
ERX2
I/O
VDDIOP0
PA9
MCI0_DA7
ERX3
I/O
VDDIOP0
PA10
ETX0
I/O
VDDIOP0
PA11
ETX1
I/O
VDDIOP0
PA12
ERX0
I/O
VDDIOP0
PA13
ERX1
I/O
VDDIOP0
PA14
ETXEN
I/O
VDDIOP0
PA15
ERXDV
I/O
VDDIOP0
PA16
ERXER
I/O
VDDIOP0
PA17
ETXCK
I/O
VDDIOP0
PA18
EMDC
I/O
VDDIOP0
PA19
EMDIO
I/O
VDDIOP0
PA20
TWD0
I/O
VDDIOP0
PA21
TWCK0
I/O
VDDIOP0
PA22
MCI1_CDA
SCK3
I/O
VDDIOP0
PA23
MCI1_DA0
RTS3
I/O
VDDIOP0
PA24
MCI1_DA1
CTS3
I/O
VDDIOP0
PA25
MCI1_DA2
PWM3
I/O
VDDIOP0
PA26
MCI1_DA3
TIOB2
I/O
VDDIOP0
PA27
MCI1_DA4
ETXER
I/O
VDDIOP0
PA28
MCI1_DA5
ERXCK
I/O
VDDIOP0
PA29
MCI1_DA6
ECRS
I/O
VDDIOP0
PA30
MCI1_DA7
ECOL
I/O
VDDIOP0
PA31
MCI1_CK
PCK0
I/O
VDDIOP0
42
Function
Comments
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
9.4.2
Table 9-3.
PIO Controller B Multiplexing
Multiplexing on PIO Controller B (PIOB)
Reset
State
Power
Supply
SPI0_MISO
I/O
VDDIOP0
PB1
SPI0_MOSI
I/O
VDDIOP0
PB2
SPI0_SPCK
I/O
VDDIOP0
PB3
SPI0_NPCS0
I/O
VDDIOP0
PB4
TXD1
I/O
VDDIOP0
PB5
RXD1
I/O
VDDIOP0
PB6
TXD2
I/O
VDDIOP0
PB7
RXD2
I/O
VDDIOP0
PB8
TXD3
ISI_D8
I/O
VDDIOP2
PB9
RXD3
ISI_D9
I/O
VDDIOP2
PB10
TWD1
ISI_D10
I/O
VDDIOP2
PB11
TWCK1
ISI_D11
I/O
VDDIOP2
PB12
DRXD
I/O
VDDIOP0
PB13
DTXD
I/O
VDDIOP0
PB14
SPI1_MISO
I/O
VDDIOP0
PB15
SPI1_MOSI
CTS0
I/O
VDDIOP0
PB16
SPI1_SPCK
SCK0
I/O
VDDIOP0
PB17
SPI1_NPCS0
RTS0
I/O
VDDIOP0
PB18
RXD0
SPI0_NPCS1
I/O
VDDIOP0
PB19
TXD0
SPI0_NPCS2
I/O
VDDIOP0
PB20
ISI_D0
I/O
VDDIOP2
PB21
ISI_D1
I/O
VDDIOP2
PB22
ISI_D2
I/O
VDDIOP2
PB23
ISI_D3
I/O
VDDIOP2
PB24
ISI_D4
I/O
VDDIOP2
PB25
ISI_D5
I/O
VDDIOP2
PB26
ISI_D6
I/O
VDDIOP2
PB27
ISI_D7
I/O
VDDIOP2
PB28
ISI_PCK
I/O
VDDIOP2
PB29
ISI_VSYNC
I/O
VDDIOP2
PB30
ISI_HSYNC
I/O
VDDIOP2
PB31
ISI_MCK
I/O
VDDIOP2
I/O Line
Peripheral A
PB0
Peripheral B
PCK1
Function
Comments
43
11028BS–ATARM–26-Apr-10
9.4.3
PIO Controller C Multiplexing
Table 9-4.
Multiplexing on PIO Controller C (PIOC)
Reset
State
Power
Supply
DQM2
DQM2
VDDIOM1
PC1
DQM3
DQM3
VDDIOM1
PC2
A19
A19
VDDIOM1
PC3
A20
A20
VDDIOM1
PC4
A21/NANDALE
A21
VDDIOM1
PC5
A22/NANDCLE
A22
VDDIOM1
PC6
A23
A23
VDDIOM1
PC7
A24
A24
VDDIOM1
PC8
CFCE1
I/O
VDDIOM1
PC9
CFCE2
RTS2
I/O
VDDIOM1
PC10
NCS4/CFCS0
TCLK2
I/O
VDDIOM1
PC11
NCS5/CFCS1
CTS2
I/O
VDDIOM1
PC12
A25/CFRNW
A25
VDDIOM1
PC13
NCS2
I/O
VDDIOM1
PC14
NCS3/NANDCS
I/O
VDDIOM1
PC15
NWAIT
I/O
VDDIOM1
PC16
D16
I/O
VDDIOM1
PC17
D17
I/O
VDDIOM1
PC18
D18
I/O
VDDIOM1
PC19
D19
I/O
VDDIOM1
PC20
D20
I/O
VDDIOM1
PC21
D21
I/O
VDDIOM1
PC22
D22
I/O
VDDIOM1
PC23
D23
I/O
VDDIOM1
PC24
D24
I/O
VDDIOM1
PC25
D25
I/O
VDDIOM1
PC26
D26
I/O
VDDIOM1
PC27
D27
I/O
VDDIOM1
PC28
D28
I/O
VDDIOM1
PC29
D29
I/O
VDDIOM1
PC30
D30
I/O
VDDIOM1
PC31
D31
I/O
VDDIOM1
I/O Line
Peripheral A
PC0
44
Peripheral B
Function
Comments
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
9.4.4
Table 9-5.
PIO Controller D Multiplexing
Multiplexing on PIO Controller D (PIOD)
I/O Line
Peripheral A
Peripheral B
Reset
State
Power
Supply
PD0
TK0
PWM3
I/O
VDDIOP0
PD1
TF0
I/O
VDDIOP0
PD2
TD0
I/O
VDDIOP0
PD3
RD0
I/O
VDDIOP0
PD4
RK0
I/O
VDDIOP0
PD5
RF0
I/O
VDDIOP0
PD6
AC97RX
I/O
VDDIOP0
PD7
AC97TX
TIOA5
I/O
VDDIOP0
PD8
AC97FS
TIOB5
I/O
VDDIOP0
PD9
AC97CK
TCLK5
I/O
VDDIOP0
PD10
TD1
I/O
VDDIOP0
PD11
RD1
I/O
VDDIOP0
PD12
TK1
I/O
VDDIOP0
PD13
RK1
I/O
VDDIOP0
PD14
TF1
I/O
VDDIOP0
PD15
RF1
I/O
VDDIOP0
PD16
RTS1
I/O
VDDIOP0
PD17
CTS1
I/O
VDDIOP0
PD18
SPI1_NPCS2
IRQ
I/O
VDDIOP0
PD19
SPI1_NPCS3
FIQ
I/O
VDDIOP0
PD20
TIOA0
I/O
VDDANA
TSAD0
PD21
TIOA1
I/O
VDDANA
TSAD1
PD22
TIOA2
I/O
VDDANA
TSAD2
PD23
TCLK0
I/O
VDDANA
TSAD3
PD24
SPI0_NPCS1
PWM0
I/O
VDDANA
GPAD4
PD25
SPI0_NPCS2
PWM1
I/O
VDDANA
GPAD5
PD26
PCK0
PWM2
I/O
VDDANA
GPAD6
PD27
PCK1
SPI0_NPCS3
I/O
VDDANA
GPAD7
PD28
TSADTRG
SPI1_NPCS1
I/O
VDDIOP0
PD29
TCLK1
SCK1
I/O
VDDIOP0
PD30
TIOB0
SCK2
I/O
VDDIOP0
PD31
TIOB1
PWM1
I/O
VDDIOP0
PCK0
Function
Comments
45
11028BS–ATARM–26-Apr-10
9.4.5
PIO Controller E Multiplexing
Table 9-6.
Multiplexing on PIO Controller E (PIOE)
I/O Line
Peripheral A
Peripheral B
Reset
State
Power
Supply
PE0
LCDPWR
PCK0
I/O
VDDIOP1
PE1
LCDMOD
I/O
VDDIOP1
PE2
LCDCC
I/O
VDDIOP1
PE3
LCDVSYNC
I/O
VDDIOP1
PE4
LCDHSYNC
I/O
VDDIOP1
PE5
LCDDOTCK
I/O
VDDIOP1
PE6
LCDDEN
I/O
VDDIOP1
PE7
LCDD0
LCDD2
I/O
VDDIOP1
PE8
LCDD1
LCDD3
I/O
VDDIOP1
PE9
LCDD2
LCDD4
I/O
VDDIOP1
PE10
LCDD3
LCDD5
I/O
VDDIOP1
PE11
LCDD4
LCDD6
I/O
VDDIOP1
PE12
LCDD5
LCDD7
I/O
VDDIOP1
PE13
LCDD6
LCDD10
I/O
VDDIOP1
PE14
LCDD7
LCDD11
I/O
VDDIOP1
PE15
LCDD8
LCDD12
I/O
VDDIOP1
PE16
LCDD9
LCDD13
I/O
VDDIOP1
PE17
LCDD10
LCDD14
I/O
VDDIOP1
PE18
LCDD11
LCDD15
I/O
VDDIOP1
PE19
LCDD12
LCDD18
I/O
VDDIOP1
PE20
LCDD13
LCDD19
I/O
VDDIOP1
PE21
LCDD14
LCDD20
I/O
VDDIOP1
PE22
LCDD15
LCDD21
I/O
VDDIOP1
PE23
LCDD16
LCDD22
I/O
VDDIOP1
PE24
LCDD17
LCDD23
I/O
VDDIOP1
PE25
LCDD18
I/O
VDDIOP1
PE26
LCDD19
I/O
VDDIOP1
PE27
LCDD20
I/O
VDDIOP1
PE28
LCDD21
I/O
VDDIOP1
PE29
LCDD22
I/O
VDDIOP1
PE30
LCDD23
I/O
VDDIOP1
PE31
PWM2
I/O
VDDIOP1
46
PCK1
Function
Comments
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
10. Embedded Peripherals
10.1
Serial Peripheral Interface (SPI)
• Supports communication with serial external devices
– Four chip selects with external decoder support allow communication with up to 15
peripherals
– Serial memories, such as DataFlash and 3-wire EEPROMs
– Serial peripherals, such as ADCs, DACs, LCD Controllers, CAN Controllers and
Sensors
– External co-processors
• Master or slave serial peripheral bus interface
– 8- to 16-bit programmable data length per chip select
– Programmable phase and polarity per chip select
– Programmable transfer delays between consecutive transfers and between clock
and data per chip select
– Programmable delay between consecutive transfers
– Selectable mode fault detection
• Very fast transfers supported
– Transfers with baud rates up to MCK
– The chip select line may be left active to speed up transfers on the same device
10.2
Two Wire Interface (TWI)
• Compatibility with standard two-wire serial memory
• One, two or three bytes for slave address
• Sequential read/write operations
• Supports either master or slave modes
• Compatible with Standard Two-wire Serial Memories
• Master, Multi-master and Slave Mode Operation
• Bit Rate: Up to 400 Kbits
• General Call Supported in Slave mode
• Connection to Peripheral DMA Controller (PDC) Channel Capabilities Optimizes Data
Transfers in Master Mode Only
– One Channel for the Receiver, One Channel for the Transmitter
– Next Buffer Support
10.3
Universal Synchronous Asynchronous Receiver Transmitter (USART)
• Programmable Baud Rate Generator
• 5- to 9-bit full-duplex synchronous or asynchronous serial communications
– 1, 1.5 or 2 stop bits in Asynchronous Mode or 1 or 2 stop bits in Synchronous Mode
– Parity generation and error detection
– Framing error detection, overrun error detection
– MSB- or LSB-first
47
11028BS–ATARM–26-Apr-10
– Optional break generation and detection
– By 8 or by-16 over-sampling receiver frequency
– Hardware handshaking RTS-CTS
– Receiver time-out and transmitter timeguard
– Optional Multi-drop Mode with address generation and detection
– Optional Manchester Encoding
• RS485 with driver control signal
• ISO7816, T = 0 or T = 1 Protocols for interfacing with smart cards
– NACK handling, error counter with repetition and iteration limit
• IrDA modulation and demodulation
– Communication at up to 115.2 Kbps
• SPI Mode
– Master or Slave
– Serial Clock Programmable Phase and Polarity
– SPI Serial Clock (SCK) Frequency up to Internal Clock Frequency MCK/4
• LIN Mode
– Compliant with LIN 1.3 and LIN 2.0 specifications
– Master or Slave
– Processing of frames with up to 256 data bytes
– Response Data length can be configurable or defined automatically by the Identifier
– Self synchronization in Slave node configuration
– Automatic processing and verification of the “Synch Break” and the “Synch Field”
– The “Synch Break” is detected even if it is partially superimposed with a data byte
– Automatic Identifier parity calculation/sending and verification
– Parity sending and verification can be disabled
– Automatic Checksum calculation/sending and verification
– Checksum sending and verification can be disabled
– Support both “Classic” and “Enhanced” checksum types
– Full LIN error checking and reporting
– Frame Slot Mode: the Master allocates slots to the scheduled frames automatically.
– Generation of the Wakeup signal
• Test Modes
– Remote Loopback, Local Loopback, Automatic Echo
10.4
Serial Synchronous Controller (SSC)
• Provides serial synchronous communication links used in audio and telecom applications
(with CODECs in Master or Slave Modes, I2S, TDM Buses, Magnetic Card Reader,...)
• Contains an independent receiver and transmitter and a common clock divider
• Offers a configurable frame sync and data length
• Receiver and transmitter can be programmed to start automatically or on detection of
different event on the frame sync signal
48
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
• Receiver and transmitter include a data signal, a clock signal and a frame synchronization
signal
10.5
AC97 Controller
• Compatible with AC97 Component Specification V2.2
• Capable to Interface with a Single Analog Front end
• Three independent RX Channels and three independent TX Channels
– One RX and one TX channel dedicated to the AC97 Analog Front end control
– One RX and one TX channel for data transfers, associated with a PDC
– One RX and one TX channel for data transfers with no PDC
• Time Slot Assigner allowing to assign up to 12 time slots to a channel
• Channels support mono or stereo up to 20 bit sample length
– Variable sampling rate AC97 Codec Interface (48KHz and below)
10.6
Timer Counter (TC)
• Three 16-bit Timer Counter Channels
• Wide range of functions including:
– Frequency Measurement
– Event Counting
– Interval Measurement
– Pulse Generation
– Delay Timing
– Pulse Width Modulation
– Up/down Capabilities
• Each channel is user-configurable and contains:
– Three external clock inputs
– Five internal clock inputs
– Two multi-purpose input/output signals
• Two global registers that act on all three TC Channels
10.7
Pulse Width Modulation Controller (PWM)
• Four channels, one 16-bit counter per channel
• Common clock generator, providing Thirteen Different Clocks
– A Modulo n counter providing eleven clocks
– Two independent Linear Dividers working on modulo n counter outputs
• Independent channel programming
– Independent Enable Disable Commands
– Independent Clock Selection
– Independent Period and Duty Cycle, with Double Buffering
– Programmable selection of the output waveform polarity
– Programmable center or left aligned output waveform
49
11028BS–ATARM–26-Apr-10
10.8
High Speed Multimedia Card Interface (MCI)
• Compatibility with MultiMedia Card Specification Version 4.3
• Compatibility with SD Memory Card Specification Version 2.0
• Compatibility with SDIO Specification Version V2.0.
• Compatibility with Memory Stick PRO
• Compatibility with CE ATA
10.9
USB High Speed Host Port (UHPHS)
• Compliant with Enhanced HCI Rev 1.0 Specification
– Compliant with USB V2.0 High-speed and Full-speed Specification
– Supports Both High-speed 480Mbps and Full-speed 12 Mbps USB devices
• Compliant with Open HCI Rev 1.0 Specification
– Compliant with USB V2.0 Full-speed and Low-speed Specification
– Supports Both Low-speed 1.5 Mbps and Full-speed 12 Mbps USB devices
• Root Hub Integrated with 2 Downstream USB Ports
• Shared Embedded USB Transceivers
10.10 USB High Speed Device Port (UDPHS)
• USB V2.0 high-speed compliant, 480 MBits per second
• Embedded USB V2.0 UTMI+ high-speed transceiver shared with UHP HS.
• Embedded 4-KByte dual-port RAM for endpoints
• Embedded 6 channels DMA controller
• Suspend/Resume logic
• Up to 2 or 3 banks for isochronous and bulk endpoints
• Seven endpoints:
– Endpoint 0: 64 bytes, 1 bank mode
– Endpoint 1 & 2: 1024 bytes, 2 banks mode, High Bandwidth, DMA
– Endpoint 3 & 4: 1024 bytes, 3 banks mode, DMA
– Endpoint 5 & 6: 1024 bytes, 3 banks mode, High Bandwidth, DMA
10.11 LCD Controller (LCDC)
• Single and Dual scan color and monochrome passive STN LCD panels supported
• Single scan active TFT LCD panels supported.
• 4-bit single scan, 8-bit single or dual scan, 16-bit dual scan STN interfaces supported
• Up to 24-bit single scan TFT interfaces supported
• Up to 16 gray levels for mono STN and up to 4096 colors for color STN displays
• 1, 2 bits per pixel (palletized), 4 bits per pixel (non-palletized) for mono STN
• 1, 2, 4, 8 bits per pixel (palletized), 16 bits per pixel (non-palletized) for color STN
• 1, 2, 4, 8 bits per pixel (palletized), 16, 24 bits per pixel (non-palletized) for TFT
• Single clock domain architecture
• Resolution supported up to 2048 x 2048
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10.12 Touch Screen Analog-to-Digital Converter (TSADC)
• 8-channel ADC
• Support 4-wire resistive Touch Screen
• 10-bit 384 Ksamples/sec. Successive Approximation Register ADC
• -3/+3 LSB Integral Non Linearity, -2/+2 LSB Differential Non Linearity
• Integrated 8-to-1 multiplexer, offering eight independent 3.3V analog inputs
• External voltage reference for better accuracy on low voltage inputs
• Individual enable and disable of each channel
• Multiple trigger sources
– Hardware or software trigger
– External trigger pin
• Sleep Mode and conversion sequencer
– Automatic wakeup on trigger and back to sleep mode after conversions of all
enabled channels
10.13 Ethernet 10/100 MAC (EMAC)
• Compatibility with IEEE® Standard 802.3
• 10 and 100 MBits per second data throughput capability
• Full- and half-duplex operations
• MII or RMII interface to the physical layer
• Register Interface to address, data, status and control registers
• DMA Interface, operating as a master on the Memory Controller
• Interrupt generation to signal receive and transmit completion
• 128-byte transmit and 128-byte receive FIFOs
• Automatic pad and CRC generation on transmitted frames
• Address checking logic to recognize four 48-bit addresses
• Supports promiscuous mode where all valid frames are copied to memory
• Supports physical layer management through MDIO interface
• Supports Wake On Lan. The receiver supports Wake on LAN by detecting the following
events on incoming receive frames:
– Magic packet
– ARP request to the device IP address
– Specific address 1 filter match
– Multicast hash filter match
10.14 Image Sensor Interface (ISI)
• ITU-R BT. 601/656 8-bit mode external interface support
• Support for ITU-R BT.656-4 SAV and EAV synchronization
• Vertical and horizontal resolutions up to 2048 x 2048
• Preview Path up to 640*480
• Support for packed data formatting for YCbCr 4:2:2 formats
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11028BS–ATARM–26-Apr-10
• Preview scaler to generate smaller size image
10.15 8-channel DMA (DMA)
• Acting as two Matrix Masters
• Embeds 8 unidirectional channels with programmable priority
• Address Generation
– Source/Destination address programming
– Address increment, decrement or no change
– DMA chaining support for multiple non-contiguous data blocks through use of linked
lists
– Scatter support for placing fields into a system memory area from a contiguous
transfer. Writing a stream of data into non-contiguous fields in system memory
– Gather support for extracting fields from a system memory area into a contiguous
transfer
– User enabled auto-reloading of source, destination and control registers from initially
programmed values at the end of a block transfer
– Auto-loading of source, destination and control registers from system memory at end
of block transfer in block chaining mode
– Unaligned system address to data transfer width supported in hardware
• Channel Buffering
– 16-word FIFO
– Automatic packing/unpacking of data to fit FIFO width
• Channel Control
– Programmable multiple transaction size for each channel
– Support for cleanly disabling a channel without data loss
– Suspend DMA operation
– Programmable DMA lock transfer support
• Transfer Initiation
– Support for Software handshaking interface. Memory mapped registers can be used
to control the flow of a DMA transfer in place of a hardware handshaking interface
• Interrupt
– Programmable Interrupt generation on DMA Transfer completion Block Transfer
completion, Single/Multiple transaction completion or Error condition
10.16 True Random Number Generator (TRNG)
• Passed NIST Special Publication 800-22 Tests Suite
• Passed Diehard Random Tests Suite
• Provides a 32-bit Random Number Every 84 Clock Cycles
• For 133 MHz Clock Frequency, Throughput Close to 50 Mbits/s
10.17 Advanced Encryption Standard (AES)
• Compliant with FIPS Publication 197, Advanced Encryption Standard (AES)
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AT91SAM9G46
• 256-bit Cryptographic Key
• 16 Clock Cycles Encryption/Decryption Processing Time with a 256-bit Cryptographic Key
• Support of the Five Standard Modes of Operation Specified in the NIST Special Publication
800- 38A, Recommendation for Block Cipher Modes of Operation - Methods and Techniques:
– Electronic Code Book (ECB)
– Cipher Block Chaining (CBC)
– Cipher Feedback (CFB)
– Output Feedback (OFB)
– Counter (CTR)
• 8-, 16-, 32-, 64- and 128-bit Data Sizes Possible in CFB Mode
• Last Output Data Mode Allows Optimized Message Authentication Code (MAC) Generation
• Hardware Counter Measures against Differential Power Analysis Attacks
• Connected to the DMA Controller to optimize Data Transfers for all Operating Modes
– One Channel for the Receiver, One Channel for the Transmitter
– Next Buffer Support
10.18 Triple Data Encryption Standard (TDES)
• Supports Single Data Encryption Standard (DES) and Triple Data Encryption Algorithm
(TDEA or TDES)
• Compliant with FIPS Publication 46-3, Data Encryption Standard (DES)
• 64-bit Cryptographic Key for TDES
• Two-key or Three-key Algorithms for TDES
• 18-clock Cycles Encryption/Decryption Processing Time for DES
• 50-clock Cycles Encryption/Decryption Processing Time for TDES
• Support the Four Standard Modes of Operation specified in the FIPS Publication 81, DES
Modes of Operation
– Electronic Code Book (ECB)
– Cipher Block Chaining (CBC)
– Cipher Feedback (CFB)
– Output Feedback (OFB)
• 8-, 16-, 32-, 64- and 128-bit Data Sizes Possible in CFB Mode
• Last Output Data Mode Allows Optimized Message (Data) Authentication Code (MAC)
Generation
• Connection to PDC Channel Capabilities Optimizes Data Transfers for all Operating Modes
– One Channel for the Receiver, One Channel for the Transmitter
– Next Buffer Support
10.19 Secure Hash Algorithm (SHA)
• Supports Secure Hash Algorithm (SHA1 and SHA256)
• Compliant with FIPS Publication 180-2
• Configurable Processing Period:
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11028BS–ATARM–26-Apr-10
– 85 Clock Cycles to Maximize the Bandwidth for SHA1 or 386 Clock Cycles or Other
Applications in PDC (Peripheral DMA)
– 72 Clock Cycles to Maximize the Bandwidth for SHA256 or 265 Clock Cycles or
Other Applications in PDC (Peripheral DMA)
• Connection to PDC Channel Capabilities Optimizes Data Transfers
– One Channel for the Transmitter
– Next Buffer Support
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AT91SAM9G46
11. Mechanical Characteristics
11.1
Package Drawings
Figure 11-1. 324-ball TFBGA Package Drawing
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11028BS–ATARM–26-Apr-10
12. AT91SAM9G46 Ordering Information
Table 12-1.
56
AT91SAM9G46 Ordering Information
Ordering Code
Package
Package Type
Temperature Operating Range
AT91SAM9G46-CU
TFBGA324
Green
Industrial
-40°C to 85°C
AT91SAM9G46
11028BS–ATARM–26-Apr-10
AT91SAM9G46
Revision History
Doc. Rev
Comments
Change
Request
Ref.
11028BS
‘11-layer --> ‘12-layer’ in Section 6.2 “Bus Matrix”.
7172
11028AS
First issue
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11028BS–ATARM–26-Apr-10