Cypress CY8C3446LTI-084 Programmable system-on-chip (psoc) Datasheet

PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Programmable System-on-Chip (PSoC®)
General Description
With its unique array of configurable blocks, PSoC®3 is a true system level solution providing MCU, memory, analog, and digital
peripheral functions in a single chip. The CY8C34 family offers a modern method of signal acquisition, signal processing, and control
with high accuracy, high bandwidth, and high flexibility. Analog capability spans the range from thermocouples (near DC voltages) to
ultrasonic signals. The CY8C34 family can handle dozens of data acquisition channels and analog inputs on every GPIO pin. The
CY8C34 family is also a high performance configurable digital system with some part numbers including interfaces such as USB,
multi-master I2C, and CAN. In addition to communication interfaces, the CY8C34 family has an easy to configure logic array, flexible
routing to all I/O pins, and a high performance single cycle 8051 microprocessor core. Designers can easily create system level
designs using a rich library of prebuilt components and boolean primitives using PSoC® Creator™, a hierarchical schematic design
entry tool. The CY8C34 family provides unparalleled opportunities for analog and digital bill of materials integration while easily
accommodating last minute design changes through simple firmware updates.
Features
„ Single cycle 8051 CPU core
‡
‡
‡
‡
‡
‡
‡
DC to 48 MHz operation
Multiply and divide instructions
Flash program memory, up to 64 KB, 100,000 write cycles,
20 years retention, multiple security features
Up to 8 KB Flash ECC or configuration storage
Up to 8 KB SRAM memory
Up to 2 KB EEPROM memory, 1M cycles, 20 years retention
24 channel DMA with multilayer AHB bus access
• Programmable chained descriptors and priorities
• High bandwidth 32-bit transfer support
„ Low voltage, ultra low power
‡
‡
‡
‡
Wide operating voltage range: 0.5V to 5.5V
High efficiency boost regulator from 0.5V input to 1.8V-5.0V
output
330 µA at 1 MHz, 1.2 mA at 6 MHz, 5.6 mA at 40 MHz
Low power modes including:
• 200 nA hibernate mode with RAM retention and LVD
• 1 µA sleep mode with real time clock and low voltage reset
„ Versatile I/O system
28 to 72 I/O (62 GPIO, 8 SIO, 2 USBIO[1])
‡ Any GPIO to any digital or analog peripheral routability
[1]
‡ LCD direct drive from any GPIO, up to 46x16 segments
‡ 1.2V to 5.5V I/O interface voltages, up to 4 domains
‡ Maskable, independent IRQ on any pin or port
‡ Schmitt trigger TTL inputs
‡ All GPIO configurable as open drain high/low, pull up/down,
High-Z, or strong output
‡ Configurable GPIO pin state at power on reset (POR)
‡ 25 mA sink on SIO
„ Digital peripherals
‡ 16 to 24 programmable PLD based Universal Digital Blocks
[1]
‡ Full CAN 2.0b 16 RX, 8 TX buffers
[1]
‡ Full-speed (FS) USB 2.0 12 Mbps using internal oscillator
‡ Up to four 16-bit configurable timer, counter, and PWM blocks
‡ Library of standard peripherals
• 8, 16, 24, and 32-bit timers, counters, and PWMs
‡
• SPI, UART, I2C
• Many others available in catalog
‡ Library of advanced peripherals
• Cyclic Redundancy Check (CRC)
• Pseudo Random Sequence (PRS) generator
• LIN Bus 2.0
• Quadrature decoder
„ Analog peripherals (1.71V ≤ Vdda ≤ 5.5V)
‡ 1.024V±0.9% internal voltage reference across -40°C to
+85°C (14 ppm/°C)
‡ Configurable Delta-Sigma ADC with 12-bit resolution
• Programmable gain stage: x0.25 to x16
• 12-bit mode, 192 ksps, 70 dB SNR, 1 bit INL/DNL
‡ Two 8-bit, 8 Msps IDACs or 1 Msps VDACs
‡ Four comparators with 75 ns response time
‡ Two uncommitted opamps with 25 mA drive capability
‡ Two configurable multifunction analog blocks. Example configurations are PGA, TIA, Mixer, and Sample and Hold
„ Programming, debug, and trace
JTAG (4 wire), Serial Wire Debug (SWD) (2 wire), and Single
Wire Viewer (SWV) interfaces
‡ 8 address and 1 data breakpoint
‡ 4 KB instruction trace buffer
2
‡ Bootloader programming supportable through I C, SPI,
UART, USB, and other interfaces
„ Precision, programmable clocking
‡ 1 to 48 MHz internal ±1% oscillator (over full temperature and
voltage range) with PLL
‡ 4 to 33 MHz crystal oscillator for crystal PPM accuracy
‡ Internal PLL clock generation up to 48 MHz
‡ 32.768 kHz watch crystal oscillator
‡ Low power internal oscillator at 1 kHz, 100 kHz
„ Temperature and packaging
‡ -40°C to +85°C degrees industrial temperature
‡ 48-pin SSOP, 48-pin QFN, 68-pin QFN, and 100-pin TQFP
package options
‡
Note
1. This feature on select devices only. See Ordering Information on page 92 for details.
Cypress Semiconductor Corporation
Document Number: 001-53304 Rev. *B
•
198 Champion Court
•
,
San Jose CA 95134-1709
•
408-943-2600
Revised December 03, 2009
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Content Overview
1. ARCHITECTURAL OVERVIEW ......................................... 3
2. PINOUTS ............................................................................. 5
3. PIN DESCRIPTIONS ......................................................... 10
4. CPU ................................................................................... 10
4.1 8051 CPU ................................................................. 10
4.2 Addressing Modes .................................................... 11
4.3 Instruction Set .......................................................... 11
4.4 DMA and PHUB ....................................................... 15
4.5 Interrupt Controller ................................................... 17
5. MEMORY .......................................................................... 17
5.1 Static RAM ............................................................... 17
5.2 Flash Program Memory ............................................ 17
5.3 Flash Security ........................................................... 18
5.4 EEPROM .................................................................. 18
5.5 External Memory Interface ....................................... 18
5.6 Memory Map ............................................................ 19
6. SYSTEM INTEGRATION .................................................. 22
6.1 Clocking System ....................................................... 22
6.2 Power System .......................................................... 25
6.3 Reset ........................................................................ 27
6.4 I/O System and Routing ........................................... 29
7. DIGITAL SUBSYSTEM ..................................................... 35
7.1 Example Peripherals ................................................ 35
7.2 Universal Digital Block .............................................. 39
7.3 UDB Array Description ............................................. 42
7.4 DSI Routing Interface Description ............................ 43
7.5 CAN .......................................................................... 44
7.6 USB .......................................................................... 46
7.7 Timers, Counters, and PWMs .................................. 47
7.8 I2C ............................................................................ 47
8. ANALOG SUBSYSTEM .................................................... 48
8.1 Analog Routing ......................................................... 49
8.2 Delta-Sigma ADC ..................................................... 51
8.3 Comparators ............................................................. 52
8.4 Opamps .................................................................... 53
Document Number: 001-53304 Rev. *B
8.5 Programmable SC/CT Blocks .................................. 53
8.6 LCD Direct Drive ...................................................... 55
8.7 CapSense ................................................................. 56
8.8 Temp Sensor ............................................................ 56
8.9 DAC .......................................................................... 56
8.10 Up/Down Mixer ....................................................... 56
8.11 Sample and Hold .................................................... 57
9. PROGRAMMING, DEBUG INTERFACES,
RESOURCES ........................................................................ 57
9.1 JTAG Interface ......................................................... 58
9.2 Serial Wire Debug Interface ..................................... 58
9.3 Debug Features ........................................................ 58
9.4 Trace Features ......................................................... 58
9.5 Single Wire Viewer Interface .................................... 58
9.6 Programming Features ............................................. 58
9.7 Device Security ........................................................ 58
10. DEVELOPMENT SUPPORT ........................................... 59
10.1 Documentation ....................................................... 59
10.2 Online ..................................................................... 59
10.3 Tools ....................................................................... 59
11. ELECTRICAL SPECIFICATIONS ................................... 60
11.1 Absolute Maximum Ratings .................................... 60
11.2 Device Level Specifications .................................... 61
11.3 Power Regulators ................................................... 64
11.4 Inputs and Outputs ................................................. 66
11.5 Analog Peripherals ................................................. 70
11.6 Digital Peripherals .................................................. 79
11.7 Memory .................................................................. 81
11.8 PSoC System Resources ....................................... 87
11.9 Clocking .................................................................. 89
12. ORDERING INFORMATION ........................................... 92
12.1 Part Numbering Conventions ................................. 94
13. PACKAGING ................................................................... 95
14. REVISION HISTORY ...................................................... 98
15. SALES, SOLUTIONS, AND LEGAL INFORMATION .... 99
Page 2 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
1. Architectural Overview
Introducing the CY8C34 family of ultra low power, Flash Programmable System-on-Chip (PSoC®) devices, part of a scalable 8-bit
PSoC 3 and 32-bit PSoC®5 platform. The CY8C34 family provides configurable blocks of analog, digital, and interconnect circuitry
around a CPU subsystem. The combination of a CPU with a very flexible analog subsystem, digital subsystem, routing, and I/O
enables a high level of integration in a wide variety of consumer, industrial, and medical applications.
Figure 1-1. Simplified Block Diagram
Analog Interconnect
Quadrature Decoder
UDB
UDB
UDB
UDB
I2C Slave
Sequencer
Usage Example for UDB
IMO
Universal Digital Block Array (24 x UDB)
8- Bit
Timer
16- Bit
PWM
UDB
8- Bit SPI
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
FS USB
2.0
4x
Timer
Counter
PWM
12- Bit SPI
UDB
Master/
Slave
UDB
UDB
8- Bit
Timer
Logic
UDB
UDB
I2C
CAN
2.0
16- Bit PRS
Logic
UDB
UDB
UART
UDB
UDB
USB
PHY
D+
D-
GPIOs
GPIOs
Clock Tree
32.768 KHz
( Optional)
DIGITAL SYSTEM
SYSTEM WIDE
RESOURCES
Xtal
Osc
SIO
4- 33 MHz
( Optional)
GPIOs
Digital Interconnect
12- Bit PWM
RTC
Timer
SYSTEM BUS
GPIOs
EEPROM
EMIF
SRAM
CPU SYSTEM
8051 or
Cortex M3
CPU
Interrupt
Controller
Program
Debug &
Trace
PHUB
DMA
FLASH
ILO
Program&
Debug
GPIOs
MEMORY SYSTEM
WDT
and
Wake
Boundary
Scan
Power Management
System
LCD Direct
Drive
Digital
Filter
Block
POR and
LVD
1.8V LDO
SMP
ANALOG SYSTEM
ADC
+
2x
Opamp
-
3 per
Opamp
2 x SC/ CT Blocks
(TIA, PGA, Mixer etc)
Temperature
Sensor
1x
Del Sig
ADC
2 x DAC
+
4x
CMP
-
GPIOs
1.71 to
5.5V
Sleep
Power
GPIOs
SIOs
Clocking System
CapSense
0. 5 to 5.5V
( Optional)
Document Number: 001-53304 Rev. *B
Page 3 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
„ Nonvolatile Subsystem
All GPIO pins can route analog signals into and out of the device
using the internal analog bus. This allows the device to interface
up to 62 discrete analog signals. The heart of the analog
subsystem is a fast, accurate, configurable Delta-Sigma ADC
with these features:
„ Programming, Debug, and Test Subsystem
„ Less than 100 µV offset
„ Inputs and Outputs
„ A gain error of 0.2%
„ Clocking
„ Integral Non Linearity (INL) less than 1 LSB
„ Power
„ Differential Non Linearity (DNL) less than 1 LSB
„ Digital Subsystem
„ Signal-to-noise ratio (SNR) better than 70 dB (Delta-Sigma) in
Figure 1-1 illustrates the major components of the CY8C34
family. They are:
„ 8051 CPU Subsystem
„ Analog Subsystem
PSoC’s digital subsystem provides half of its unique configurability. It connects a digital signal from any peripheral to any
pin through the Digital System Interconnect (DSI). It also
provides functional flexibility through an array of small, fast, low
power Universal Digital Blocks (UDBs). PSoC Creator provides
a library of pre-built and tested standard digital peripherals
(UART, SPI, LIN, PRS, CRC, timer, counter, PWM, AND, OR,
and so on) that are mapped to the UDB array. The designer can
also easily create a digital circuit using boolean primitives by
means of graphical design entry. Each UDB contains Programmable Array Logic (PAL)/Programmable Logic Device (PLD)
functionality, together with a small state machine engine to
support a wide variety of peripherals.
In addition to the flexibility of the UDB array, PSoC also provides
configurable digital blocks targeted at specific functions. For the
CY8C34 family these blocks can include four 16-bit timer,
counter, and PWM blocks; I2C slave, master, and multi-master;
Full-Speed USB; and Full CAN 2.0b.
For more details on the peripherals see the “Example Peripherals” section on page 35 of this data sheet. For information on
UDBs, DSI, and other digital blocks, see the “Digital Subsystem”
section on page 35 of this data sheet.
PSoC’s analog subsystem is the second half of its unique configurability. All analog performance is based on a highly accurate
absolute voltage reference with less than 0.9% error over
temperature and voltage. The configurable analog subsystem
includes:
„ Analog muxes
„ Comparators
„ Voltage references
„ Analog-to-Digital Converter (ADC)
„ Digital-to-Analog Converters (DACs)
Document Number: 001-53304 Rev. *B
12-bit mode
This converter addresses a wide variety of precision analog
applications including some of the most demanding sensors.
Two high speed voltage or current DACs support 8-bit output
signals at update rate of 8 Msps in current DAC (IDAC) and 1
Msps in voltage DAC (VDAC). They can be routed out of any
GPIO pin. You can create higher resolution voltage PWM DAC
outputs using the UDB array. This can be used to create a pulse
width modulated (PWM) DAC of up to 10 bits, at up to 48 kHz.
The digital DACs in each UDB support PWM, PRS, or
delta-sigma algorithms with programmable widths.
In addition to the ADC and DACs, the analog subsystem
provides multiple:
„ Uncommitted opamps
„ Configurable Switched Capacitor/Continuous Time (SC/CT)
blocks. These support:
‡ Transimpedance amplifiers
‡ Programmable gain amplifiers
‡ Mixers
‡ Other similar analog components
See the “Analog Subsystem” section on page 48 of this data
sheet for more details.
PSoC’s 8051 CPU subsystem is built around a single cycle
pipelined 8051 8-bit processor running up to 48 MHz. The CPU
subsystem includes a programmable nested vector interrupt
controller, DMA controller, and RAM. PSoC’s nested vector
interrupt controller provides low latency by allowing the CPU to
vector directly to the first address of the interrupt service routine,
bypassing the jump instruction required by other architectures.
The DMA controller enables peripherals to exchange data
without CPU involvement. This allows the CPU to run slower
(saving power) or use those CPU cycles to improve the performance of firmware algorithms. The single cycle 8051 CPU runs
ten times faster than a standard 8051 processor. The processor
speed itself is configurable allowing active power consumption
to be tuned for specific applications.
Page 4 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
PSoC’s nonvolatile subsystem consists of Flash, byte-writeable
EEPROM, and nonvolatile configuration options. It provides up
to 64 KB of on-chip Flash. The CPU can reprogram individual
blocks of Flash, enabling boot loaders. The designer can enable
an Error Correcting Code (ECC) for high reliability applications.
A powerful and flexible protection model secures the user's
sensitive information, allowing selective memory block locking
for read and write protection. Up to 2 KB of byte-writable
EEPROM is available on-chip to store application data.
Additionally, selected configuration options such as boot speed
and pin drive mode are stored in nonvolatile memory. This allows
settings to activate immediately after power on reset (POR).
The three types of PSoC I/O are extremely flexible. All I/Os have
many drive modes that are set at POR. PSoC also provides up
to four I/O voltage domains through the Vddio pins. Every GPIO
has analog I/O, LCD drive, CapSense®[4], flexible interrupt
generation, slew rate control, and digital I/O capability. The SIOs
on PSoC allow Voh to be set independently of Vddio when used
as outputs. When SIOs are in input mode they are high
impedance. This is true even when the device is not powered or
when the pin voltage goes above the supply voltage. This makes
the SIO ideally suited for use on an I2C bus where the PSoC may
not be powered when other devices on the bus are. The SIO pins
also have high current sink capability for applications such as
LED drives. The programmable input threshold feature of the
SIO can be used to make the SIO function as a general purpose
analog comparator. For devices with Full-Speed USB the USB
physical interface is also provided (USBIO). When not using
USB these pins may also be used for limited digital functionality
and device programming. All the features of the PSoC I/Os are
covered in detail in the “I/O System and Routing” section on
page 29 of this data sheet.
The PSoC device incorporates flexible internal clock generators,
designed for high stability, and factory trimmed for absolute
accuracy. The Internal Main Oscillator (IMO) is the master clock
base for the system with 1% absolute accuracy at 3 MHz. The
IMO can be configured to run from 3 MHz up to 48 MHz. Multiple
clock derivatives can be generated from the main clock
frequency to meet application needs. The device provides a PLL
to generate system clock frequencies up to 48 MHz from the
IMO, external crystal, or external reference clock. It also contains
a separate, very low power Internal Low Speed Oscillator (ILO)
for the sleep and watchdog timers. A 32.768 kHz external watch
crystal is also supported for use in Real Time Clock (RTC) applications. The clocks, together with programmable clock dividers,
provide the flexibility to integrate most timing requirements.
The CY8C34 family supports a wide supply operating range from
1.71 to 5.5V. This allows operation from regulated supplies such
as 1.8 ± 5%, 2.5V ±10%, 3.3V ± 10%, or 5.0V ± 10%, or directly
Document Number: 001-53304 Rev. *B
from a wide range of battery types. In addition, it provides an
integrated high efficiency synchronous boost converter that can
power the device from supply voltages as low as 0.5V. This
enables the device to be powered directly from a single battery
or solar cell. In addition, the designer can use the boost converter
to generate other voltages required by the device, such as a 3.3V
supply for LCD glass drive. The boost’s output is available on the
Vboost pin, allowing other devices in the application to be
powered from the PSoC.
PSoC supports a wide range of low power modes. These include
a 200 nA hibernate mode with RAM retention and a 1 µA sleep
mode with real time clock (RTC). In the second mode the
optional 32.768 kHz watch crystal runs continuously and
maintains an accurate RTC.
Power to all major functional blocks, including the programmable
digital and analog peripherals, can be controlled independently
by firmware. This allows low power background processing
when some peripherals are not in use. This, in turn, provides a
total device current of only 1.2 mA when the CPU is running at
6 MHz or 330 µA running at 1 MHz.
The details of the PSoC power modes are covered in the “Power
System” section on page 25 of this data sheet.
PSoC uses JTAG (4 wire) or Serial Wire Debug (SWD) (2 wire)
interfaces for programming, debug, and test. The 1-wire Single
Wire Viewer (SWV) may also be used for “printf” style debugging.
By combining SWD and SWV, the designer can implement a full
debugging interface with just three pins. Using these standard
interfaces enables the designer to debug or program the PSoC
with a variety of hardware solutions from Cypress or third party
vendors. PSoC supports on-chip break points and 4 KB
instruction and data race memory for debug. Details of the
programming, test, and debugging interfaces are discussed in
the “Programming, Debug Interfaces, Resources” section on
page 57 of this data sheet.
2. Pinouts
The Vddio pin that supplies a particular set of pins is indicated
by the black lines drawn on the pinout diagrams in Figure 2-1
through Figure 2-4. Using the Vddio pins, a single PSoC can
support multiple interface voltage levels, eliminating the need for
off-chip level shifters. Each Vddio may sink up to 100 mA total to
its associated I/O pins and opamps. On the 68 pin and 100 pin
devices each set of Vddio associated pins may sink up to 100
mA. The 48 pin device may sink up to 100 mA total for all Vddio0
plus Vddio2 associated I/O pins and 100 mA total for all Vddio1
plus Vddio3 associated I/O pins.
Page 5 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 2-1. 48-Pin SSOP Part Pinout
(SIO) P12[2]
(SIO) P12[3]
(OpAmp2out, GPIO) P0[0]
(OpAmp0out, GPIO) P0[1]
(OpAmp0+, GPIO) P0[2]
(OpAmp0-/Extref0, GPIO) P0[3]
Vddio0
(OpAmp2+, GPIO) P0[4]
(OpAmp2-, GPIO) P0[5]
(IDAC0, GPIO) P0[6]
(IDAC2, GPIO) P0[7]
Vccd
Vssd
Vddd
(GPIO) P2[3]
(GPIO) P2[4]
Vddio2
(GPIO) P2[5]
(GPIO) P2[6]
(GPIO) P2[7]
Vssb
Ind
Vboost
Vbat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Lines show
Vddio to IO
supply
association
SSOP
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
Vdda
Vssa
Vcca
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
P12[1] (SIO, I2C1: SDA)
P12[0] (SIO, I2C1: SCL)
Vddio3
P15[1] (GPIO, MHz XTAL: Xi)
P15[0] (GPIO, MHz XTAL: Xo)
Vccd
Vssd
Vddd
[2]
P15[7] (USBIO, D-, SWDCK)
[2]
P15[6] (USBIO, D+, SWDIO)
P1[7] (GPIO)
P1[6] (GPIO)
Vddio1
P1[5] (GPIO, nTRST)
P1[4] (GPIO, TDI)
P1[3] (GPIO, TDO, SWV)
P1[2] (GPIO, configurable XRES)
P1[1] (GPIO, TCK, SWDCK)
P1[0] (GPIO, TMS, SWDIO)
(GPIO) P2[6]
(GPIO) P2[7]
1
2
Vssb
Ind
Vb
Vbat
(GPIO, TMS, SWDIO) P1[0]
(GPIO, TCK, SWDCK) P1[1]
(GPIO, Configurable XRES) P1[2]
(GPIO, TDO, SWV) P1[3]
(GPIO, TDI) P1[4]
(GPIO, nTRST) P1[5]
3
4
5
6
QFN
( Top View)
36
35
34
33
32
31
30
29
28
27
26
25
P0[3] (OpAmp0-/Extref0, GPIO)
P0[2] (OpAmp0+, GPIO)
P0[1] (OpAmp0out, GPIO)
P0[0] (OpAmp2out, GPIO)
P12[3] (SIO)
P12[2] (SIO)
Vdda
Vssa
Vcca
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
P12[1] (SIO, I2C1: SDA)
(GPIO) P1[6]
(GPIO) P1[7]
[2]
(USBIO, D+, SWDIO) P15[6]
[2]
(USBIO, D-, SWDCK) P15[7]
Vddd
Vssd
Vccd
(GPIO, MHz XTAL: Xo) P15[0]
(GPIO, MHz XTAL: Xi) P15[1]
Vddio3
(SIO, I2C1: SCL) P12[0]
Vddio1
Document Number: 001-53304 Rev. *B
Lines show
Vddio to I/O
supply
association
13
14
15
16
17
18
19
20
21
22
23
24
7
8
9
10
11
12
42
41
40
39
38
37
48
47
46
45
44
43
P2[5] (GPIO)
Vddio2
P2[4] (GPIO)
P2[3] (GPIO)
Vddd
Vssd
Vccd
P0[7] (IDAC2, GPIO)
P0[6] (IDAC0, GPIO)
P0[5] (OpAmp2-, GPIO)
P0[4] (OpAmp2+, GPIO)
Vddio0
Figure 2-2. 48-Pin QFN Part Pinout[3]
Page 6 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
55
54
53
52
58
57
56
P15[5] (GPOI)
P15[4] (GPIO)
Vddd
Vssd
Vccd
P0[7] (GPIO, IDAC2)
P0[6] (GPIO, IDAC0)
P0[5] (GPIO, OpAmp2-)
P0[4] (GPIO, OpAmp2+)
Vddio0
51
50
Lines show Vddio
to IO supply
association
QFN
28
29
30
31
32
33
34
(MHz XTAL: Xi, GPIO) P15[1]
(GPIO) P3[0]
(GPIO) P3[1]
(Extref1, GPIO) P3[2]
(GPIO) P3[3]
(GPIO) P3[4]
(GPIO) P3[5]
(Top View)
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
(GPIO) P1[6]
(GPIO) P1[7]
(SIO) P12[6]
(SIO) P12[7]
[2]
(USBIO, D+, SWDIO) P15[6]
[2]
(USBIO, D-, SWDCK) P15[7]
Vddd
Vssd
Vccd
(MHz XTAL: Xo, GPIO) P15[0]
(GPIO) P2[6]
(GPIO) P2[7]
(I2C0: SCL, SIO) P12[4]
(I2C0: SDA, SIO) P12[5]
Vssb
Ind
Vboost
Vbat
Vssd
XRES
(TMS, SWDIO, GPIO) P1[0]
(TCK, SWDCK, GPIO) P1[1]
(configurable XRES, GPIO) P1[2]
(TDO, SWV, GPIO) P1[3]
(TDI, GPIO) P1[4]
(nTRST, GPIO) P1[5]
Vddio1
66
65
64
63
62
61
60
59
68
67
P2[5] (GPIO)
Vddio2
P2[4] (GPIO)
P2[3] (GPIO)
P2[2] (GPIO)
P2[1] (GPIO)
P2[0] (GPIO)
Figure 2-3. 68-Pin QFN Part Pinout[3]
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
P0[3] (GPIO, OpAmp0-/Extref0)
P0[2] (GPIO, OpAmp0+)
P0[1] (GPIO, OpAmp0out)
P0[0] (GPIO, OpAmp2out)
P12[3] (SIO)
P12[2] (SIO)
Vssd
Vdda
Vssa
Vcca
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
P12[1] (SIO, I2C1: SDA)
P12[0] (SIO, 12C1: SCL)
P3[7] (GPIO)
P3[6] (GPIO)
Vddio3
Notes
2. Pins are No Connect (NC) on devices without USB. NC means that the pin has no electrical connection. The pin can be left floating or tied to a supply voltage or ground.
3. The center pad on the QFN package should be connected to digital ground (Vssd) for best mechanical, thermal, and electrical performance. If not connected to ground,
it should be electrically floated and not connected to any other signal.
Document Number: 001-53304 Rev. *B
Page 7 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
77
76
P4[5] (GPIO)
P4[4] (GPIO)
P4[3] (GPIO)
P4[2] (GPIO)
P0[7] (GPIO, IDAC2)
P0[6] (GPIO, IDAC0)
P0[5] (GPIO, OpAmp2-)
P0[4] (GPIO, OpAmp2+)
87
86
85
84
83
82
81
80
79
78
90
89
88
P15[4] (GPIO)
P6[3] (GPIO)
P6[2] (GPIO)
P6[1] (GPIO)
P6[0] (GPIO)
Vddd
Vssd
Vccd
P4[7] (GPIO)
P4[6] (GPIO)
98
97
96
95
94
93
92
91
75
74
Lines show Vddio
to IO supply
association
TQFP
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
Vddio0
P0[3] (GPIO, OpAmp0-/Extref0)
P0[2] (GPIO, OpAmp0+)
P0[1] (GPIO, OpAmp0out)
P0[0] (GPIO, OpAmp2out)
P4[1] (GPIO)
P4[0] (GPIO)
P12[3] (SIO)
P12[2] (SIO)
Vssd
Vdda
Vssa
Vcca
NC
NC
NC
NC
NC
NC
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
P12[1] (SIO, I2C1: SDA)
P12[0] (SIO, I2C1: SCL)
P3[7] (GPIO)
P3[6] (GPIO)
[2]
(GPIO) P3[5]
Vddio3
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
(USBIO, D-, SWDCK) P15[7]
Vddd
Vssd
Vccd
NC
NC
(MHz XTAL: Xo, GPIO) P15[0]
(MHz XTAL: Xi, GPIO) P15[1]
(GPIO) P3[0]
(GPIO) P3[1]
(Extref1, GPIO) P3[2]
(GPIO) P3[3]
(GPIO) P3[4]
54
53
52
51
26
27
28
29
30
31
32
33
34
35
(TCK, SWDCK, GPIO) P1[1]
(configurable XRES, GPIO) P1[2]
(TDO, SWV, GPIO) P1[3]
(TDI, GPIO) P1[4]
(nTRST, GPIO) P1[5]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Vddio1
(GPIO) P1[6]
(GPIO) P1[7]
(SIO) P12[6]
(SIO) P12[7]
(GPIO) P5[4]
(GPIO) P5[5]
(GPIO) P5[6]
(GPIO) P5[7]
[2]
(USBIO, D+, SWDIO) P15[6]
(GPIO) P2[5]
(GPIO) P2[6]
(GPIO) P2[7]
(I2C0: SCL, SIO) P12[4]
(I2C0: SDA, SIO) P12[5]
(GPIO) P6[4]
(GPIO) P6[5]
(GPIO) P6[6]
(GPIO) P6[7]
Vssb
Ind
Vboost
Vbat
Vssd
XRES
(GPIO) P5[0]
(GPIO) P5[1]
(GPIO) P5[2]
(GPIO) P5[3]
(TMS, SWDIO, GPIO) P1[0]
100
99
Vddio2
P2[4] (GPIO)
P2[3] (GPIO)
P2[2] (GPIO)
P2[1] (GPIO)
P2[0] (GPIO)
P15[5] (GPIO)
Figure 2-4. 100-Pin TQFP Part Pinout
Document Number: 001-53304 Rev. *B
Page 8 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 2-5 and Figure 2-6 show an example schematic and an
example PCB layout, for the 100-pin TQFP part, for optimal
analog performance on a 2-layer board.
Figure 2-5 and Power System on page 25. The trace between
the two Vccd pins should be as short as possible.
„ The two pins labeled Vssd must be connected together.
„ The two pins labeled Vddd must be connected together.
„ The two pins labeled Vccd must be connected together, and
have capacitors connected between them as shown in
Figure 2-5. Example Schematic for 100-Pin TQFP Part with Power Connections
Vddd
U2
CY8C55xx
Vddd
P2[5]
P2[6]
P2[7]
P12[4], SIO
P12[5], SIO
P6[4]
P6[5]
P6[6]
P6[7]
Vssb
Ind
Vboost
Vbat
Vssd
XRES
P5[0]
P5[1]
P5[2]
P5[3]
P1[0], SWIO, TMS
P1[1], SWDIO, TCK
P1[2]
P1[3], SWV, TDO
P1[4], TDI
P1[5], nTRST
Vdda
Vddd
Vddio0
OA0-, REF0, P0[3]
OA0+, P0[2]
OA0out, P0[1]
OA2out, P0[0]
P4[1]
P4[0]
SIO, P12[3]
SIO, P12[2]
Vssd
Vdda
Vssa
Vcca
NC
NC
NC
NC
NC
NC
kHzXin, P15[3]
kHzXout, P15[2]
SIO, P12[1]
SIO, P12[0]
OA3out, P3[7]
OA1out, P3[6]
Vddio1
P1[6]
P1[7]
P12[6], SIO
P12[7], SIO
P5[4]
P5[5]
P5[6]
P5[7]
USB D+, P15[6]
USB D-, P15[7]
Vddd
Vssd
Vccd
NC
NC
P15[0], MHzXout
P15[1], MHzXin
P3[0], IDAC1
P3[1], IDAC3
P3[2], OA3-, REF1
P3[3], OA3+
P3[4], OA1P3[5], OA1+
Vddio3
Vssd
Vssd
Vddd
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Vddd
Vssd
Vddio2
P2[4]
P2[3]
P2[2]
P2[1]
P2[0]
P15[5]
P15[4]
P6[3]
P6[2]
P6[1]
P6[0]
Vddd
Vssd
Vccd
P4[7]
P4[6]
P4[5]
P4[4]
P4[3]
P4[2]
IDAC2, P0[7]
IDAC0, P0[6]
OA2-, P0[5]
OA2+, P0[4]
Vssd
Vssd
Vssd
C3
0.1uF
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
C6
0.1uF
Vccd
C2
0.1uF
Vddd
Vssd
C1
1uF
Vddd
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Vddd
C8
0.1uF
C13
1uF
Vssd
Vssa
Vssd
Vssd
Vdda
Vssa
Vcca
Vdda
C9
1uF
C10
0.1uF
Vssa
Vddd
C11
0.1uF
Vccd
Vddd
Vssd
C12
0.1uF
Vssd
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
Vssd
C15
1uF
C16
0.1uF
Vssd
Document Number: 001-53304 Rev. *B
Page 9 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 2-6. Example PCB Layout for 100-Pin TQFP Part for Optimal Analog Performance
VSSA
VDDD
VSSD
VDDA
VSSA
Plane
VSSD
Plane
3. Pin Descriptions
SWDCK. Serial Wire Debug Clock programming and debug port
connection.
IDAC0, IDAC2. Low resistance output pin for high current DACs
(IDAC).
SWDIO. Serial Wire Debug Input and Output programming and
debug port connection.
OpAmp0out, OpAmp2out. High current output of uncommitted
opamp[4].
Extref0, Extref1. External reference input to the analog system.
OpAmp0-, OpAmp2-. Inverting input to uncommitted opamp.
OpAmp0+, OpAmp2+. Noninverting
opamp.
input
to
uncommitted
GPIO. General purpose I/O pin provides interfaces to the CPU,
digital peripherals, analog peripherals, interrupts, LCD segment
drive, and CapSense[4].
I2C
I2C0: SCL, I2C1: SCL.
SCL line providing wake from sleep
on an address match. Any I/O pin can be used for I2C SCL if
wake from sleep is not required.
I2C0: SDA, I2C1: SDA. I2C SDA line providing wake from sleep
on an address match. Any I/O pin can be used for I2C SDA if
wake from sleep is not required.
Ind. Inductor connection to boost pump.
kHz XTAL: Xo, kHz XTAL: Xi. 32.768 kHz crystal oscillator pin.
MHz XTAL: Xo, MHz XTAL: Xi. 4 to 33 MHz crystal oscillator pin.
SWV. Single Wire Viewer debug output.
TCK. JTAG Test Clock programming and debug port connection.
TDI. JTAG Test Data In programming and debug port
connection.
TDO. JTAG Test Data Out programming and debug port
connection.
TMS. JTAG Test Mode Select programming and debug port
connection.
USBIO, D+. Provides D+ connection directly to a USB 2.0 bus.
May be used as a digital I/O pin. Pins are No Connect (NC) on
devices without USB.[2]
USBIO, D-. Provides D- connection directly to a USB 2.0 bus.
May be used as a digital I/O pin. Pins are No Connect (NC) on
devices without USB.[2]
Vboost. Power sense connection to boost pump.
Vbat. Battery supply to boost pump.
nTRST. Optional JTAG Test Reset programming and debug port
connection to reset the JTAG connection.
Vcca. Output of analog core regulator and input to analog core.
Requires a 1 µF capacitor to Vssa. Regulator output not for
external use.
SIO. Special I/O provides interfaces to the CPU, digital peripherals and interrupts with a programmable high threshold voltage,
analog comparator, high sink current, and high impedance state
when the device is unpowered.
Vccd. Output of digital core regulator and input to digital core.
Requires a capacitor from each Vccd pin to Vssd; see Power
System on page 25. Regulator output not for external use.
Vdda. Supply for all analog peripherals and analog core
regulator. Vdda must be the highest voltage present on the
Note
4. GPIOs with OpAmp outputs are not recommended for use with CapSense.
Document Number: 001-53304 Rev. *B
Page 10 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
device. All other supply pins must be less than or equal to
Vdda.
Vddd. Supply for all digital peripherals and digital core regulator.
Vddd must be less than or equal to Vdda.
Vssa. Ground for all analog peripherals.
Vssb. Ground connection for boost pump.
Vssd. Ground for all digital logic and I/O pins.
Vddio0, Vddio1, Vddio2, Vddio3. Supply for I/O pins. See
pinouts for specific I/O pin to Vddio mapping. Vddio must be less
than or equal to Vdda.
XRES (and configurable XRES). External reset pin. Active low
with internal pullup. In 48-pin SSOP parts, P1[2] is configured as
XRES. In all other parts the pin is configured as a GPIO.
4. CPU
4.1 8051 CPU
The CY8C34 devices use a single cycle 8051 CPU, which is fully
compatible with the original MCS-51 instruction set. The
CY8C34 family uses a pipelined RISC architecture, which
executes most instructions in 1 to 2 cycles to provide peak
performance of up to 24 MIPS with an average of 2 cycles per
instruction. The single cycle 8051 CPU runs ten times faster than
a standard 8051 processor.
4.2 Addressing Modes
The following addressing modes are supported by the 8051:
„ Direct Addressing: The operand is specified by a direct 8-bit
address field. Only the internal RAM and the SFRs can be
accessed using this mode.
„ Indirect Addressing: The instruction specifies the register which
contains the address of the operand. The registers R0 or R1
are used to specify the 8-bit address, while the Data Pointer
(DPTR) register is used to specify the 16-bit address.
„ Register Addressing: Certain instructions access one of the
registers (R0-R7) in the specified register bank. These instructions are more efficient because there is no need for an address
field.
„ Register Specific Instructions: Some instructions are specific
to certain registers. For example, some instructions always act
on the accumulator. In this case, there is no need to specify the
operand.
„ Immediate Constants: Some instructions carry the value of the
constants directly instead of an address.
„ Indexed Addressing: This type of addressing can be used only
for a read of the program memory. This mode uses the Data
Pointer as the base and the accumulator value as an offset to
read a program memory.
„ Bit Addressing: In this mode, the operand is one of 256 bits.
The 8051 CPU subsystem includes these features:
„ Single cycle 8051 CPU
„ Up to 64 kB of Flash memory, up to 2 kB of EEPROM, and up
to 8 kB of SRAM
„ Programmable nested vector interrupt controller
„ Direct Memory Access (DMA) controller
„ Peripheral HUB (PHUB)
„ External Memory Interface (EMIF)
4.3 Instruction Set
The 8051 instruction set is highly optimized for 8-bit handling and
Boolean operations. The types of instructions supported include:
„ Arithmetic instructions
„ Logical instructions
„ Data transfer instructions
„ Boolean instructions
„ Program branching instructions
4.3.1 Instruction Set Summary
4.3.1.1 Arithmetic Instructions
Arithmetic instructions support the direct, indirect, register,
immediate constant, and register specific instructions. Arithmetic
modes are used for addition, subtraction, multiplication, division,
increment, and decrement operations. lists the different arithmetic instructions.
Document Number: 001-53304 Rev. *B
Page 11 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 4-1. Arithmetic Instructions
Mnemonic
Description
Bytes
Cycles
1
1
ADD
A,Rn
Add register to accumulator
ADD
A,Direct
Add direct byte to accumulator
2
2
ADD
A,@Ri
Add indirect RAM to accumulator
1
2
ADD
A,#data
Add immediate data to accumulator
2
2
ADDC A,Rn
Add register to accumulator with carry
1
1
ADDC A,Direct
Add direct byte to accumulator with carry
2
2
ADDC A,@Ri
Add indirect RAM to accumulator with carry
1
2
ADDC A,#data
Add immediate data to accumulator with carry
2
2
SUBB A,Rn
Subtract register from accumulator with borrow
1
1
SUBB A,Direct
Subtract direct byte from accumulator with borrow
2
2
SUBB A,@Ri
Subtract indirect RAM from accumulator with borrow
1
2
SUBB A,#data
Subtract immediate data from accumulator with borrow
2
2
INC
A
Increment accumulator
1
1
INC
Rn
Increment register
1
3
INC
Direct
Increment direct byte
2
3
INC
@Ri
Increment indirect RAM
1
3
DEC
A
Decrement accumulator
1
1
DEC
Rn
Decrement register
1
2
DEC
Direct
Decrement direct byte
2
3
DEC
@Ri
Decrement indirect RAM
1
3
INC
DPTR
Increment data pointer
1
1
MUL
Multiply accumulator and B
1
2
DIV
Divide accumulator by B
1
6
DAA
Decimal adjust accumulator
1
3
4.3.1.2 Logical Instructions
The logical instructions perform Boolean operations such as AND, OR, XOR on bytes, rotate of accumulator contents, and swap of
nibbles in an accumulator. The Boolean operations on the bytes are performed on the bit-by-bit basis. shows the list of logical
instructions and their description.
Table 4-2. Logical Instructions
Mnemonic
Description
Bytes
Cycles
ANL
A,Rn
AND register to accumulator
1
1
ANL
A,Direct
AND direct byte to accumulator
2
2
ANL
A,@Ri
AND indirect RAM to accumulator
1
2
ANL
A,#data
AND immediate data to accumulator
2
2
ANL
Direct, A
AND accumulator to direct byte
2
3
ANL
Direct, #data
AND immediate data to direct byte
3
3
ORL
A,Rn
OR register to accumulator
1
1
ORL
A,Direct
OR direct byte to accumulator
2
2
ORL
A,@Ri
OR indirect RAM to accumulator
1
2
Document Number: 001-53304 Rev. *B
Page 12 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 4-2. Logical Instructions (continued)
Bytes
Cycles
ORL
A,#data
Mnemonic
OR immediate data to accumulator
Description
2
2
ORL
Direct, A
OR accumulator to direct byte
2
3
ORL
Direct, #data
OR immediate data to direct byte
3
3
XRL
A,Rn
XOR register to accumulator
1
1
XRL
A,Direct
XOR direct byte to accumulator
2
2
XRL
A,@Ri
XOR indirect RAM to accumulator
1
2
XRL
A,#data
XOR immediate data to accumulator
2
2
XRL
Direct, A
XOR accumulator to direct byte
2
3
XRL
Direct, #data
XOR immediate data to direct byte
3
3
CLR
A
Clear accumulator
1
1
CPL
A
Complement accumulator
1
1
RL
A
Rotate accumulator left
1
1
RLC
A
Rotate accumulator left through carry
1
1
RR
A
Rotate accumulator right
1
1
RRC A
Rotate accumulator right though carry
1
1
SWAP A
Swap nibbles within accumulator
1
1
4.3.1.3 Data Transfer Instructions
4.3.1.4 Boolean Instructions
The data transfer instructions are of three types: the core RAM,
xdata RAM, and the look up tables. The core RAM transfer
includes transfer between any two core RAM locations or SFRs.
These instructions can use direct, indirect, register, and
immediate addressing. The xdata RAM transfer includes only the
transfer between the accumulator and the xdata RAM location.
It can use only indirect addressing. The look up tables involve
nothing but the read of program memory using the Indexed
addressing mode. Table 4-3 lists the various data transfer
instructions available.
The 8051 core has a separate bit addressable memory location.
It has 128 bits of bit addressable RAM and a set of SFRs that are
bit addressable. The instruction set includes the whole menu of
bit operations such as move, set, clear, toggle, OR, and AND
instructions and the conditional jump instructions. Table 4-4 lists
the available Boolean instructions.
Table 4-3. Data Transfer Instructions
Mnemonic
Description
Bytes
Cycles
MOV
A,Rn
Move register to accumulator
1
1
MOV
A,Direct
Move direct byte to accumulator
2
2
MOV
A,@Ri
Move indirect RAM to accumulator
1
2
MOV
A,#data
Move immediate data to accumulator
2
2
MOV
Rn,A
Move accumulator to register
1
1
MOV
Rn,Direct
Move direct byte to register
2
3
MOV
Rn, #data
Move immediate data to register
2
2
MOV
Direct, A
Move accumulator to direct byte
2
2
MOV
Direct, Rn
Move register to direct byte
2
2
MOV
Direct, Direct
Move direct byte to direct byte
3
3
MOV
Direct, @Ri
Move indirect RAM to direct byte
2
3
MOV
Direct, #data
Move immediate data to direct byte
3
3
MOV
@Ri, A
Move accumulator to indirect RAM
1
2
Document Number: 001-53304 Rev. *B
Page 13 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 4-3. Data Transfer Instructions (continued)
Bytes
Cycles
MOV
@Ri, Direct
Mnemonic
Move direct byte to indirect RAM
Description
2
3
MOV
@Ri, #data
Move immediate data to indirect RAM
2
2
MOV
DPTR, #data16
Load data pointer with 16 bit constant
3
3
MOVC A, @A+DPTR
Move code byte relative to DPTR to accumulator
1
5
MOVC A, @A + PC
Move code byte relative to PC to accumulator
1
4
MOVX A,@Ri
Move external RAM (8 bit) to accumulator
1
3
MOVX A, @DPTR
Move external RAM (16 bit) to accumulator
1
2
MOVX @Ri, A
Move accumulator to external RAM (8 bit)
1
4
MOVX @DPTR, A
Move accumulator to external RAM (16 bit)
1
3
PUSH Direct
Push direct byte onto stack
2
3
POP
Pop direct byte from stack
2
2
Direct
XCH
A, Rn
Exchange register with accumulator
1
2
XCH
A, Direct
Exchange direct byte with accumulator
2
3
XCH
A, @Ri
Exchange indirect RAM with accumulator
1
3
Exchange low order indirect digit RAM with accumulator
1
3
Bytes
Cycles
XCHD A, @Ri
Table 4-4. Boolean Instructions
Mnemonic
Description
CLR
C
Clear carry
1
1
CLR
bit
Clear direct bit
2
3
SETB C
Set carry
1
1
SETB bit
Set direct bit
2
3
CPL
C
Complement carry
1
1
CPL
bit
Complement direct bit
2
3
ANL
C, bit
AND direct bit to carry
2
2
ANL
C, /bit
AND complement of direct bit to carry
2
2
ORL C, bit
OR direct bit to carry
2
2
ORL C, /bit
OR complement of direct bit to carry
2
2
MOV C, bit
Move direct bit to carry
2
2
MOV bit, C
Move carry to direct bit
2
3
JC
Jump if carry is set
2
3
JNC rel
rel
Jump if no carry is set
2
3
JB
Jump if direct bit is set
3
5
JNB bit, rel
Jump if direct bit is not set
3
5
JBC bit, rel
Jump if direct bit is set and clear bit
3
5
bit, rel
Document Number: 001-53304 Rev. *B
Page 14 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
4.3.1.5 Program Branching Instructions
The 8051 supports a set of conditional and unconditional jump instructions that help to modify the program execution flow. Table 4-5
shows the list of jump instructions.
Table 4-5. Jump Instructions
Mnemonic
Description
Bytes
Cycles
ACALL addr11
Absolute subroutine call
2
4
LCALL addr16
Long subroutine call
3
4
RET
Return from subroutine
1
4
RETI
Return from interrupt
1
4
AJMP addr11
Absolute jump
2
3
LJMP addr16
Long jump
3
4
SJMP rel
Short jump (relative address)
2
3
JMP @A + DPTR
Jump indirect relative to DPTR
1
5
JZ rel
Jump if accumulator is zero
2
4
JNZ rel
Jump if accumulator is nonzero
2
4
CJNE A,Direct, rel
Compare direct byte to accumulator and jump if not equal
3
5
CJNE A, #data, rel
Compare immediate data to accumulator and jump if not equal
3
4
CJNE Rn, #data, rel
Compare immediate data to register and jump if not equal
3
4
CJNE @Ri, #data, rel
Compare immediate data to indirect RAM and jump if not equal
3
5
DJNZ Rn,rel
Decrement register and jump if not zero
2
4
DJNZ Direct, rel
Decrement direct byte and jump if not zero
3
5
NOP
No operation
1
1
4.4 DMA and PHUB
4.4.1 PHUB Features
The PHUB and the DMA controller are responsible for data
transfer between the CPU and peripherals, and also data
transfers between peripherals. The PHUB and DMA also control
device configuration during boot. The PHUB consists of:
„ CPU and DMA controller are both bus masters to the PHUB
„ A central hub that includes the DMA controller, arbiter, and
„ Simultaneous CPU and DMA access to peripherals located on
router
„ Multiple spokes that radiate outward from the hub to most
peripherals
There are two PHUB masters: the CPU and the DMA controller.
Both masters may initiate transactions on the bus. The DMA
channels can handle peripheral communication without CPU
intervention. The arbiter in the central hub determines which
DMA channel is the highest priority if there are multiple requests.
Document Number: 001-53304 Rev. *B
„ Eight Multi-layer AHB Bus parallel access paths (spokes) for
peripheral access
different spokes
„ Simultaneous DMA source and destination burst transactions
on different spokes
„ Supports 8, 16, 24, and 32-bit addressing and data
Table 4-6. PHUB Spokes and Peripherals
PHUB Spokes
0
Peripherals
SRAM
1
IOs, PICU, EMIF
2
PHUB local configuration, Power manager,
Clocks, IC, SWV, EEPROM, Flash
programming interface
3
Analog interface and trim, Decimator
4
USB, CAN, I2C, Timers, Counters, and PWMs
5
Reserved
6
UDBs group 1
7
UDBs group 2
Page 15 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
4.4.2 DMA Features
4.4.4 Transaction Modes Supported
„ 24 DMA channels
The flexible configuration of each DMA channel and the ability to
chain multiple channels allow the creation of both simple and
complex use cases. General use cases include, but are not
limited to:
„ Each channel has one or more Transaction Descriptors (TDs)
to configure channel behavior. Up to 128 total TDs can be
defined
„ TDs can be dynamically updated
4.4.4.1 Simple DMA
„ Eight levels of priority per channel
In a simple DMA case, a single TD transfers data between a
source and sink (peripherals or memory location).
„ Any digitally routable signal, the CPU, or another DMA channel,
4.4.4.2 Auto Repeat DMA
can trigger a transaction
„ Each channel can generate up to two interrupts per transfer
„ Transactions can be stalled or canceled
„ Supports transaction size of infinite or 1 to 64k bytes
„ TDs may be nested and/or chained for complex transactions
4.4.3 Priority Levels
The CPU always has higher priority than the DMA controller
when their accesses require the same bus resources. Due to the
system architecture, the CPU can never starve the DMA. DMA
channels of higher priority (lower priority number) may interrupt
current DMA transfers. In the case of an interrupt, the current
transfer is allowed to complete its current transaction. To ensure
latency limits when multiple DMA accesses are requested simultaneously, a fairness algorithm guarantees an interleaved
minimum percentage of bus bandwidth for priority levels 2
through 7. Priority levels 0 and 1 do not take part in the fairness
algorithm and may use 100% of the bus bandwidth. If a tie occurs
on two DMA requests of the same priority level, a simple round
robin method is used to evenly share the allocated bandwidth.
The round robin allocation can be disabled for each DMA
channel, allowing it to always be at the head of the line. Priority
levels 2 to 7 are guaranteed the minimum bus bandwidth shown
in Table 4-7 after the CPU and DMA priority levels 0 and 1 have
satisfied their requirements.
Table 4-7. Priority Levels
Auto repeat DMA is typically used when a static pattern is repetitively read from system memory and written to a peripheral. This
is done with a single TD that chains to itself.
4.4.4.3 Ping Pong DMA
A ping pong DMA case uses double buffering to allow one buffer
to be filled by one client while another client is consuming the
data previously received in the other buffer. In its simplest form,
this is done by chaining two TDs together so that each TD calls
the opposite TD when complete.
4.4.4.4 Circular DMA
Circular DMA is similar to ping pong DMA except it contains more
than two buffers. In this case there are multiple TDs; after the last
TD is complete it chains back to the first TD.
4.4.4.5 Scatter Gather DMA
In the case of scatter gather DMA, there are multiple noncontiguous sources or destinations that are required to effectively
carry out an overall DMA transaction. For example, a packet may
need to be transmitted off of the device and the packet elements,
including the header, payload, and trailer, exist in various
noncontiguous locations in memory. Scatter gather DMA allows
the segments to be concatenated together by using multiple TDs
in a chain. The chain gathers the data from the multiple locations.
A similar concept applies for the reception of data onto the
device. Certain parts of the received data may need to be
scattered to various locations in memory for software processing
convenience. Each TD in the chain specifies the location for
each discrete element in the chain.
Priority Level
% Bus Bandwidth
0
100.0
4.4.4.6 Packet Queuing DMA
1
100.0
2
50.0
3
25.0
Packet queuing DMA is similar to scatter gather DMA but specifically refers to packet protocols. With these protocols, there may
be separate configuration, data, and status phases associated
with sending or receiving a packet.
4
12.5
5
6.2
6
3.1
7
1.5
When the fairness algorithm is disabled, DMA access is granted
based solely on the priority level; no bus bandwidth guarantees
are made.
Document Number: 001-53304 Rev. *B
For instance, to transmit a packet, a memory mapped configuration register can be written inside a peripheral, specifying the
overall length of the ensuing data phase. The CPU can set up
this configuration information anywhere in system memory and
copy it with a simple TD to the peripheral. After the configuration
phase, a data phase TD (or a series of data phase TDs) can
begin (potentially using scatter gather). When the data phase
TD(s) finish, a status phase TD can be invoked that reads some
memory mapped status information from the peripheral and
copies it to a location in system memory specified by the CPU
for later inspection. Multiple sets of configuration, data, and
status phase “subchains” can be strung together to create larger
chains that transmit multiple packets in this way. A similar
concept exists in the opposite direction to receive the packets.
Page 16 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
4.4.4.7 Nested DMA
Table 4-8. Interrupt Vector Table (continued)
One TD may modify another TD, as the TD configuration space
is memory mapped similar to any other peripheral. For example,
a first TD loads a second TD’s configuration and then calls the
second TD. The second TD moves data as required by the application. When complete, the second TD calls the first TD, which
again updates the second TD’s configuration. This process
repeats as often as necessary.
4.5 Interrupt Controller
The interrupt controller provides a mechanism for hardware
resources to change program execution to a new address,
independent of the current task being executed by the main
code. The interrupt controller provides enhanced features not
found on original 8051 interrupt controllers:
„ 32 interrupt vectors
„ Jumps directly to ISR anywhere in code space with dynamic
vector addresses
„ Multiple sources for each vector
„ Flexible interrupt to vector matching
#
Fixed Function
DMA
UDB
4
PICU[0]
phub_termout0[4]
udb_intr[4]
5
PICU[1]
phub_termout0[5]
udb_intr[5]
6
PICU[2]
phub_termout0[6]
udb_intr[6]
7
PICU[3]
phub_termout0[7]
udb_intr[7]
8
PICU[4]
phub_termout0[8]
udb_intr[8]
9
PICU[5]
phub_termout0[9]
udb_intr[9]
10
PICU[6]
phub_termout0[10] udb_intr[10]
11
PICU[12]
phub_termout0[11] udb_intr[11]
12
PICU[15]
phub_termout0[12] udb_intr[12]
13
Comparator Int
phub_termout0[13] udb_intr[13]
14
Switched Cap Int
phub_termout0[14] udb_intr[14]
15
I2C
phub_termout0[15] udb_intr[15]
16
CAN
phub_termout1[0]
udb_intr[16]
17
Timer/Counter0
phub_termout1[1]
udb_intr[17]
18
Timer/Counter1
phub_termout1[2]
udb_intr[18]
„ Each interrupt vector is independently enabled or disabled
19
Timer/Counter2
phub_termout1[3]
udb_intr[19]
„ Each interrupt can be dynamically assigned one of eight
20
Timer/Counter3
phub_termout1[4]
udb_intr[20]
21
USB SOF Int
phub_termout1[5]
udb_intr[21]
priorities
„ Eight level nestable interrupts
22
USB Arb Int
phub_termout1[6]
udb_intr[22]
„ Multiple I/O interrupt vectors
23
USB Bus Int
phub_termout1[7]
udb_intr[23]
„ Software can send interrupts
24
USB Endpoint[0]
phub_termout1[8]
udb_intr[24]
„ Software can clear pending interrupts
25
USB Endpoint Data phub_termout1[9]
udb_intr[25]
When an interrupt is pending, the current instruction is
completed and the program counter is pushed onto the stack.
Code execution then jumps to the program address provided by
the vector. After the ISR is completed, a RETI instruction is
executed and returns execution to the instruction following the
previously interrupted instruction. To do this the RETI instruction
pops the program counter from the stack.
26
Reserved
phub_termout1[10] udb_intr[26]
27
Reserved
phub_termout1[11] udb_intr[27]
28
Reserved
phub_termout1[12] udb_intr[28]
29
Decimator Int
phub_termout1[13] udb_intr[29]
30
PHUB Error Int
phub_termout1[14] udb_intr[30]
31
EEPROM Fault Int
phub_termout1[15] udb_intr[31]
If the same priority level is assigned to two or more interrupts,
the interrupt with the lower vector number is executed first. Each
interrupt vector may choose from three interrupt sources: Fixed
Function, DMA, and UDB. The fixed function interrupts are direct
connections to the most common interrupt sources and provide
the lowest resource cost connection. The DMA interrupt sources
provide direct connections to the two DMA interrupt sources
provided per DMA channel. The third interrupt source for vectors
is from the UDB digital routing array. This allows any digital signal
available to the UDB array to be used as an interrupt source.
Fixed function interrupts and all interrupt sources may be routed
to any interrupt vector using the UDB interrupt source connections.
Table 4-8. Interrupt Vector Table
#
Fixed Function
DMA
UDB
0
LVD
phub_termout0[0]
udb_intr[0]
1
ECC
phub_termout0[1]
udb_intr[1]
2
Reserved
phub_termout0[2]
udb_intr[2]
3
Sleep (Pwr Mgr)
phub_termout0[3]
udb_intr[3]
Document Number: 001-53304 Rev. *B
5. Memory
5.1 Static RAM
CY8C34 Static RAM (SRAM) is used for temporary data storage.
Up to 8 KB of SRAM is provided and can be accessed by the
8051 or the DMA controller. See the “Memory Map” section on
page 19. Simultaneous access of SRAM by the 8051 and the
DMA controller is possible if different 4 KB blocks are accessed.
5.2 Flash Program Memory
Flash memory in PSoC devices provides nonvolatile storage for
user firmware, user configuration data, bulk data storage, and
optional ECC data. The main Flash memory area contains up to
64 KB of user program space.
Up to an additional 8 KB of Flash space is available for Error
Correcting Codes (ECC). If ECC is not used this space can store
device configuration data and bulk user data. User code may not
be run out of the ECC Flash memory section. ECC can correct
Page 17 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
one bit error and detect two bit errors per 8 bytes of firmware
memory; an interrupt can be generated when an error is
detected. The Flash output is 9 bytes wide with 8 bytes of data
and 1 byte of ECC data.
Flash programming is performed through a special interface and
preempts code execution out of Flash. The Flash programming
interface performs Flash erasing, programming and setting code
protection levels. Flash In System Serial Programming (ISSP),
typically used for production programming, is possible through
both the SWD and JTAG interfaces. In-system programming,
typically used for bootloaders, is also possible using serial interfaces such as I2C, USB, UART, and SPI, or any communications
protocol.
5.3 Flash Security
All PSoC devices include a flexible Flash protection model that
prevents access and visibility to on-chip Flash memory. This
prevents duplication or reverse engineering of proprietary code.
Flash memory is organized in blocks, where each block contains
256 bytes of program or data and 32 bytes of ECC or configuration data. A total of up to 256 blocks are provided on 64 KB
Flash devices.
The device offers the ability to assign one of four protection
levels to each row of Flash. Table 5-1 lists the protection modes
available. Flash protection levels can only be changed by
performing a complete Flash erase. The Full Protection and Field
Upgrade settings disable external access (through a debugging
tool such as PSoC Creator, for example). If your application
requires code update through a boot loader, then use the Field
Upgrade setting. Use the Unprotected setting only when no
security is needed in your application. The PSoC device also
offers an advanced security feature called Device Security which
permanently disables all test, programming, and debug ports,
protecting your application from external access (see the
“Device Security” section on page 58). For more information on
how to take full advantage of the security features in PSoC, see
the PSoC 3 TRM.
Table 5-1. Flash Protection
Protection
Setting
Allowed
Not Allowed
Unprotected
External read and write + internal read and write
Factory
Upgrade
External write + internal
read and write
Cypress products meet the specifications contained in their
particular Cypress data sheets. Cypress believes that its family
of products is one of the most secure families of its kind on the
market today, regardless of how they are used. There may be
methods, unknown to Cypress, that can breach the code
protection features. Any of these methods, to our knowledge,
would be dishonest and possibly illegal. Neither Cypress nor any
other semiconductor manufacturer can guarantee the security of
their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”
Cypress is willing to work with the customer who is concerned
about the integrity of their code. Code protection is constantly
evolving. We at Cypress are committed to continuously
improving the code protection features of our products.
5.4 EEPROM
PSoC EEPROM memory is a byte addressable nonvolatile
memory. The CY8C34 has up to 2 KB of EEPROM memory to
store user data. Reads from EEPROM are random access at the
byte level. Reads are done directly; writes are done by sending
write commands to an EEPROM programming interface. CPU
code execution can continue from Flash during EEPROM writes.
EEPROM is erasable and writeable at the row level. The
EEPROM is divided into 128 rows of 16 bytes each.
The CPU can not execute out of EEPROM. There is no ECC
hardware associated with EEPROM. If ECC is required it must
be handled in firmware.
5.5 External Memory Interface
CY8C34 provides an External Memory Interface (EMIF) for
connecting to external memory devices. The connection allows
read and write accesses to external memories. The EMIF
operates in conjunction with UDBs, I/O ports, and other
hardware to generate external memory address and control
signals.
Figure 5-1 is the EMIF block diagram. The EMIF supports
synchronous and asynchronous memories. The CY8C34
supports only one type of external memory device at a time.
External memory can be accessed via the 8051 xdata space; up
to 24 address bits can be used. See “xdata Space” section on
page 21. The memory can be 8 or 16 bits wide.
External read
Field Upgrade Internal read and write
External read and
write
Full Protection Internal read
External read and
write + internal write
Disclaimer
Note the following details of the Flash code protection features
on Cypress devices.
Document Number: 001-53304 Rev. *B
Page 18 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 5-1. EMIF Block Diagram
Address Signals
External_ MEM_ ADDR[23:0]
IO
PORTs
Data Signals
External_ MEM_ DATA[15:0]
IO
PORTs
Control Signals
IO
PORTs
Data,
Address,
and Control
Signals
IO IF
PHUB
Data,
Address,
and Control
Signals
Control
DSI Dynamic Output
Control
UDB
DSI to Port
Data,
Address,
and Control
Signals
EM Control
Signals
Other
Control
Signals
EMIF
5.6 Memory Map
The CY8C34 8051 memory map is very similar to the MCS-51
memory map.
5.6.1 Code Space
The CY8C34 8051 code space is 64 KB. Only main Flash exists
in this space. See the “Flash Program Memory” section on
page 17.
5.6.2 Internal Data Space
The CY8C34 8051 internal data space is 384 bytes, compressed
within a 256-byte space. This space consists of 256 bytes of
RAM (in addition to the SRAM mentioned in “Static RAM” on
page 17) and a 128-byte space for Special Function Registers
(SFRs). See Figure 5-2. The lowest 32 bytes are used for 4
banks of registers R0-R7. The next 16 bytes are bit-addressable.
Document Number: 001-53304 Rev. *B
Figure 5-2. 8051 Internal Data Space
0x00
0x1F
0x20
0x2F
0x30
0x7F
0x80
0xFF
4 Banks, R0-R7 Each
Bit Addressable Area
Lower Core RAM Shared with Stack Space
(direct and indirect addressing)
Upper Core RAM Shared
with Stack Space
(indirect addressing)
SFR
Special Function Registers
(direct addressing)
Page 19 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
In addition to the register or bit address modes used with the
lower 48 bytes, the lower 128 bytes can be accessed with direct
or indirect addressing. With direct addressing mode, the upper
128 bytes map to the SFRs. With indirect addressing mode, the
upper 128 bytes map to RAM. Stack operations use indirect
addressing; the 8051 stack space is 256 bytes. See the
“Addressing Modes” section on page 11
5.6.3 SFRs
The Special Function Register (SFR) space provides access to
frequently accessed registers. The memory map for the SFR
memory space is shown in Table 5-2.
Table 5-2. SFR Map
Address
0/8
0xF8
SFRPRT15DR
0xF0
B
0xE8
SFRPRT12DR
0xE0
ACC
1/9
SFRPRT15PS
2/A
3/B
4/C
5/D
6/E
7/F
SFRPRT15SEL
SFRPRT12SEL
SFRPRT12PS
MXAX
SFRPRT6PS
SFRPRT6SEL
0xD8
SFRPRT6DR
0xD0
PSW
0xC8
SFRPRT5DR
SFRPRT5PS
SFRPRT5SEL
0xC0
SFRPRT4DR
SFRPRT4PS
SFRPRT4SEL
SFRPRT3DR
SFRPRT3PS
SFRPRT3SEL
CPUCLK_DIV
SFRPRT1SEL
SFRPRT2SEL
0xB8
0xB0
0xA8
IE
0xA0
P2AX
0x98
SFRPRT2DR
SFRPRT2PS
0x90
SFRPRT1DR
SFRPRT1PS
SFRPRT0PS
SFRPRT0SEL
SFRPRT0DR
SP
DPL0
0x88
0x80
DPX0
The CY8C34 family provides the standard set of registers found
on industry standard 8051 devices. In addition, the CY8C34
devices add SFRs to provide direct access to the I/O ports on the
device and also allow the CPU to run at multiple clock speeds.
The following sections describe the SFRs added to the CY8C34
family.
XData Space Access SFRs
The 8051 core features dual DPTR registers for faster data
transfer operations. The data pointer select SFR, DPS, selects
which data pointer register, DPTR0 or DPTR1, is used for the
following instructions:
„ MOVX @DPTR, A
„ MOVX A, @DPTR
„ MOVC A, @A+DPTR
„ JMP @A+DPTR
„ INC DPTR
„ MOV DPTR, #data16
The extended data pointer SFRs, DPX0, DPX1, MXAX, and
P2AX, hold the most significant parts of memory addresses
during access to the xdata space. These SFRs are used only
with the MOVX instructions.
During a MOVX instruction using the DPTR0/DPTR1 register,
the most significant byte of the address is always equal to the
contents of DPX0/DPX1.
Document Number: 001-53304 Rev. *B
DPH0
DPX1
DPL1
DPH1
DPS
During a MOVX instruction using the R0 or R1 register, the most
significant byte of the address is always equal to the contents of
MXAX, and the next most significant byte is always equal to the
contents of P2AX.
I/O Port SFRs
The I/O ports provide digital input sensing, output drive, pin interrupts, connectivity for analog inputs and outputs, LCD, and
access to peripherals through the DSI. Full information on I/O
ports is found in “I/O System and Routing” on page 29.
I/O ports are linked to the CPU through the PHUB and are also
available in the SFRs. Using the SFRs allows faster access to a
limited set of I/O port registers, while using the PHUB allows boot
configuration and access to all I/O port registers.
Each SFR supported I/O port provides three SFRs:
„ SFRPRTxDR sets the output data state of the port (where x is
port number and includes ports 0-6, 12 and 15).
„ The SFRPRTxSEL selects whether the PHUB PRTxDR
register or the SFRPRTxDR controls each pin’s output buffer
within the port. If a SFRPRTxSEL[y] bit is high, the corresponding SFRPRTxDR[y] bit sets the output state for that pin.
If a SFRPRTxSEL[y] bit is low, the corresponding PRTxDR[y]
bit sets the output state of the pin (where y varies from 0 to 7).
„ The SFRPRTxPS is a read only register that contains pin state
values of the port pins.
Page 20 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Clock Divider SFR
5.6.3.1 xdata Space
The CPU clock divider allows the CPU to run at speeds that are
divisors of the BUS clock speed. Users can specify CPU clock
speed by configuring the CPUCLK_DIV register in the user SFR
space at address 0xA1:. Using this register, the CPU clock can
be dynamically slowed down or speeded up, which allows finer
control of power usage.
The 8051 xdata space is 24-bit, or 16 MB in size. The majority of
this space is not “external”—it is used by on-chip components.
See Table 5-4. External, that is, off-chip, memory can be
accessed using the EMIF. See External Memory Interface.
Table 5-3. Clock Divider Settings
CPUCLK_DIV
CPU Clock Frequency
Table 5-4. XDATA Data Address Map
Address Range
Purpose
0x00 0000 - 0x00 1FFF SRAM
0x00
clk_cpu = clk_bus
0x01
clk_cpu = clk_bus/2
0x00 4000 - 0x00 42FF Clocking, PLLs, and oscillators
0x00 4300 - 0x00 43FF Power management
0x02
clk_cpu = clk_bus/3
0x00 4400 - 0x00 44FF Interrupt controller
0x03
clk_cpu = clk_bus/4
0x00 4500 - 0x00 45FF Ports interrupt control
0x04
clk_cpu = clk_bus/5
0x00 4700 - 0x00 47FF System performance controller
0x05
clk_cpu = clk_bus/6
0x00 4900 - 0x00 49FF I2C controller
0x06
clk_cpu = clk_bus/7
0x00 4E00 - 0x00 4EFF Decimator
0x07
clk_cpu = clk_bus/8
0x00 4F00 - 0x00 4FFF Fixed timer/counter/PWMs
0x08
clk_cpu = clk_bus/9
0x00 5000 - 0x00 51FF General purpose I/Os
0x09
clk_cpu = clk_bus/10
0x00 5300 - 0x00 530F Output port select register
0x0A
clk_cpu = clk_bus/11
0x0B
clk_cpu = clk_bus/12
0x00 5400 - 0x00 54FF External Memory Interface control
registers
0x0C
clk_cpu = clk_bus/13
0x00 5800 - 0x00 5FFF Analog Subsystem interface
0x0D
clk_cpu = clk_bus/14
0x00 6000 - 0x00 60FF USB controller
0x0E
clk_cpu = clk_bus/15
0x00 6400 - 0x00 6FFF UDB configuration
0x0F
clk_cpu = clk_bus/16
0x00 7000 - 0x00 7FFF PHUB configuration
0x00 8000 - 0x00 8FFF EEPROM
0x00 A000 - 0x00 A400 CAN
0x01 0000 - 0x01 FFFF Digital Interconnect configuration
0x03 0000 - 0x03 01FF Reserved
0x05 0220 - 0x05 02F0 Debug controller
0x08 0000 - 0x08 1FFF Flash ECC bytes
0x80 0000 - 0xFF FFFF External Memory Interface
Document Number: 001-53304 Rev. *B
Page 21 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
6. System Integration
Key features of the clocking system include:
„ Seven general purpose clock sources
6.1 Clocking System
3 to 48 MHz IMO ±1% at 3 MHz
4 to 33 MHz External Crystal Oscillator (MHzECO)
‡ DSI signal from an external I/O pin or other logic
‡ 24 to 48 MHz fractional Phase-Locked Loop (PLL) sourced
from IMO, MHzECO, or DSI
‡ Clock Doubler
‡ 1 kHz, 33 kHz, 100 kHz ILO for Watch Dog Timer (WDT) and
Sleep Timer
‡ 32.768 kHz External Crystal Oscillator (kHzECO) for Real
Time Clock (RTC)
‡
The clocking system generates, divides, and distributes clocks
throughout the PSoC system. For the majority of systems, no
external crystal is required. The IMO and PLL can generate up
to a 48 MHz clock, accurate to ±1% over voltage and temperature. Additional internal and external clock sources allow each
design to optimize accuracy, power, and cost. All of the system
clock sources can be used to generate other clock frequencies
in the 16-bit clock dividers and UDBs for anything the user wants,
for example a UART baud rate generator.
Clock generation and distribution is automatically configured
through the PSoC Creator IDE graphical interface. This is based
on the complete system’s requirements. It greatly speeds the
design process. PSoC Creator allows designers to build clocking
systems with minimal input. The designer can specify desired
clock frequencies and accuracies, and the software locates or
builds a clock that meets the required specifications. This is
possible because of the programmability inherent PSoC.
‡
„ IMO has a USB mode that auto locks to the USB bus clock
requiring no external crystal for USB. (USB equipped parts only)
„ Independently sourced clock in all clock dividers
„ Eight 16-bit clock dividers for the digital system
„ Four 16-bit clock dividers for the analog system
„ Dedicated 16-bit divider for the CPU bus and CPU clock
„ Automatic clock configuration in PSoC Creator
Table 6-1. Oscillator Summary
Source
Fmin
Tolerance at Fmin
Fmax
Tolerance at Fmax
Startup Time
IMO
3 MHz
±1% over voltage and temperature
48 MHz
±5%
10 µs max
MHzECO
4 MHz
Crystal dependent
33 MHz
Crystal dependent
5 ms typ, max is
crystal dependent
DSI
0 MHz
Input dependent
33 MHz
Input dependent
Input dependent
PLL
24 MHz
Input dependent
48 MHz
Input dependent
250 µs max
Doubler
12 MHz
Input dependent
48 MHz
Input dependent
1 µs max
ILO
1 kHz
-30%, +65%
100 kHz
-20%, +30%
1000 µs max
kHzECO
32 kHz
Crystal dependent
32 kHz
Crystal dependent
500 ms typ, max is
crystal dependent
Document Number: 001-53304 Rev. *B
Page 22 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 6-1. Clocking Subsystem
3-48 MHz
IMO
4-33 MHz
ECO
External IO
or DSI
0-33 MHz
32 kHz ECO
1,33,100 kHz
ILO
12-48 MHz
Doubler
24-48 MHz
PLL
System
Clock Mux
Bus/CPU Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Analog Clock
Divider 16 bit
s
k
e
w
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Analog Clock
Divider 16 bit
s
k
e
w
7
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Analog Clock
Divider 16 bit
s
k
e
w
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Analog Clock
Divider 16 bit
s
k
e
w
7
6.1.1 Internal Oscillators
6.1.1.1 Internal Main Oscillator
In most designs the IMO is the only clock source required, due
to its ±1% accuracy. The IMO operates with no external components and outputs a stable clock. A factory trim for each
frequency range is stored in the device. With the factory trim,
tolerance varies from ±1% at 3 MHz, up to ±5% at 48 MHz. The
IMO, in conjunction with the PLL, allows generation of up to a 48
MHz clock with ±1% accuracy.
The IMO provides clock outputs at 3, 6, 12, 24, and 48 MHz.
6.1.1.2 Clock Doubler
The clock doubler outputs a clock at twice the frequency of the
input clock. The doubler works for input frequency ranges of 6 to
24 MHz (providing 12 to 48 MHz at the output). It can be
configured to use a clock from the IMO, MHzECO, or the DSI
(external pin).
6.1.1.3 Phase-Locked Loop
The PLL allows low frequency, high accuracy clocks to be multiplied to higher frequencies. This is a tradeoff between higher
clock frequency and accuracy and, higher power consumption
and increased startup time.
The PLL block provides a mechanism for generating clock
frequencies based upon a variety of input sources. The PLL
outputs clock frequencies in the range of 24 to 48 MHz. Its input
and feedback dividers supply 4032 discrete ratios to create
Document Number: 001-53304 Rev. *B
almost any desired system clock frequency. The most common
PLL use is to multiply the IMO clock at 3 MHz, where it is most
accurate to generate the CPU and system clocks up to the
device’s maximum frequency.
The PLL achieves phase lock within 250 µs (verified by bit
setting). It can be configured to use a clock from the IMO,
MHzECO, DSI (external pin), or doubler. The PLL clock source
can be used until lock is complete and signaled with a lock bit.
Disable the PLL before entering low power modes.
6.1.1.4 Internal Low Speed Oscillator
The ILO provides clock frequencies for low power consumption,
including the watchdog timer, and sleep timer. The ILO
generates up to three different clocks: 1 kHz, 33 kHz, and
100 kHz.
The 1 kHz clock (CLK1K) is typically used for a background
‘heartbeat’ timer. This clock inherently lends itself to low power
supervisory operations such as the watchdog timer and long
sleep intervals using the central timewheel (CTW).
The central timewheel is a 1 kHz, free running, 13-bit counter
clocked by the ILO. The central timewheel is always enabled
except in hibernate mode and when the CPU is stopped during
debug on chip mode. It can be used to generate periodic interrupts for timing purposes or to wake the system from a low power
mode. Firmware can reset the central timewheel. Systems that
require accurate timing should use the Real Time Clock
capability instead of the central timewheel.
Page 23 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
The 100 kHz clock (CLK100K) works as a low power system
clock to run the CPU. It can also generate time intervals such as
fast sleep intervals using the fast timewheel.
The fast timewheel is a 100 kHz, 5-bit counter clocked by the ILO
that can also be used to wake the system. The fast timewheel
settings are programmable, and the counter automatically resets
when the terminal count is reached. This enables flexible,
periodic wakeups of the CPU at a higher rate than is allowed
using the central timewheel. The fast timewheel can generate an
optional interrupt each time the terminal count is reached.
The 33 kHz clock (CLK33K) comes from a divide-by-3 operation
on CLK100K. This output can be used as a reduced accuracy
version of the 32.768 kHz ECO clock with no need for a crystal.
6.1.2 External Oscillators
6.1.2.1 MHz External Crystal Oscillator
The MHzECO provides high frequency, high precision clocking
using an external crystal. It supports a wide variety of crystal
types, in the range of 4 to 33 MHz. When used in conjunction
with the PLL, it can synthesize a wide range of precise clock
frequencies up to 48 MHz. The GPIO pins connecting to the
external crystal and capacitors are fixed. MHzECO accuracy
depends on the crystal chosen.
6.1.2.2 Digital System Interconnect
The DSI provides routing for clocks taken from external clock
oscillators connected to I/O. The oscillators can also be
generated within the device in the digital system and Universal
Digital Blocks.
While the primary DSI clock input provides access to all clocking
resources, up to eight other DSI clocks (internally or externally
generated) may be routed directly to the eight digital clock
dividers. This is only possible if there are multiple precision clock
sources.
6.1.2.3 32.768 kHz ECO
The 32.768 kHz External Crystal Oscillator (32kHzECO)
provides precision timing with minimal power consumption using
an external 32.768 kHz watch crystal. The 32kHzECO also
connects directly to the sleep timer and provides the source for
the Real Time Clock (RTC). The RTC uses a 1 second interrupt
to implement the RTC functionality in firmware.
The oscillator works in two distinct power modes. This allows
users to trade off power consumption with noise immunity from
neighboring circuits. The GPIO pins connected to the external
crystal and capacitors are fixed.
Document Number: 001-53304 Rev. *B
6.1.3 Clock Distribution
All seven clock sources are inputs to the central clock distribution
system. The distribution system is designed to create multiple
high precision clocks. These clocks are customized for the
design’s requirements and eliminate the common problems
found with limited resolution prescalers attached to peripherals.
The clock distribution system generates several types of clock
trees.
„ The system clock is used to select and supply the fastest clock
in the system for general system clock requirements and clock
synchronization of the PSoC device.
„ Bus Clock 16-bit divider uses the system clock to generate the
system’s bus clock used for data transfers and the CPU. The
CPU clock is directly derived from the bus clock.
„ Eight fully programmable 16-bit clock dividers generate digital
system clocks for general use in the digital system, as
configured by the design’s requirements. Digital system clocks
can generate custom clocks derived from any of the seven
clock sources for any purpose. Examples include baud rate
generators, accurate PWM periods, and timer clocks, and
many others. If more than eight digital clock dividers are
required, the Universal Digital Blocks (UDBs) and fixed function
Timer/Counter/PWMs can also generate clocks.
„ Four 16-bit clock dividers generate clocks for the analog system
components that require clocking, such as ADC and mixers.
The analog clock dividers include skew control to ensure that
critical analog events do not occur simultaneously with digital
switching events. This is done to reduce analog system noise.
Each clock divider consists of an 8-input multiplexer, a 16-bit
clock divider (divide by 2 and higher) that generates ~50% duty
cycle clocks, system clock resynchronization logic, and deglitch
logic. The outputs from each digital clock tree can be routed into
the digital system interconnect and then brought back into the
clock system as an input, allowing clock chaining of up to 32 bits.
6.1.4 USB Clock Domain
The USB clock domain is unique in that it operates largely
asynchronously from the main clock network. The USB logic
contains a synchronous bus interface to the chip, while running
on an asynchronous clock to process USB data. The USB logic
requires a 48 MHz frequency. This frequency can be generated
from different sources, including DSI clock at 48 MHz or doubled
value of 24 MHz from internal oscillator, DSI signal, or crystal
oscillator.
Page 24 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
6.2 Power System
The power system consists of separate analog, digital, and I/O supply pins, labeled Vdda, Vddd, and Vddiox, respectively. It also
includes two internal 1.8V regulators that provide the digital (Vccd) and analog (Vcca) supplies for the internal core logic. The output
pins of the regulators (Vccd and Vcca) and the Vddio pins must have capacitors connected as shown in Figure 6-2. One of the Vccd
pins must have a 1 µF ±10% X5R capacitor connected to Vssd. The other Vccd pin should have a 0.1 µF ±10% X5R capacitor
connected to Vssd. Also, a trace that is as short as possible must run between the two Vccd pins. The power system also contains a
sleep regulator, an I2C regulator, and a hibernate regulator.
Figure 6-2. PSoC Power System
1 µF
Vddio2
Vddd
Vddio0
Vddd
I/ O Supply
Vssd
Vccd
Vddio2
0.1µF
I/ O Supply
Vddio0
0.1µF
I2C
Regulator
Sleep
Regulator
Digital
Domain
Vdda
Digital
Regulators
Vssd
Vdda
Vcca
Analog
Regulator
1 µF
.
Vssa
Analog
Domain
0.1µF
I/O Supply
Vddio3
Vddd
Vssd
I/O Supply
Vccd
Vddio1
Hibernate
Regulator
0.1µF
0.1µF
Vddio1
6.2.1 Power Modes
PSoC 3 devices have four different power modes. The power
modes allow a design to easily provide required functionality and
processing power while simultaneously minimizing power
consumption and maximizing battery life in low power and
portable devices.
PSoC 3 power modes, in order of decreasing power
consumption are:
„ Active
Vddd
Vddio3
Active is the main processing mode. Its functionality is configurable. Each power controllable subsystem is enabled or
disabled by using separate power configuration template
registers. In alternate active mode, fewer subsystems are
enabled, reducing power. In sleep mode most resources are
disabled regardless of the template settings. Sleep mode is
optimized to provide timed sleep intervals and Real Time Clock
functionality. The lowest power mode is hibernate, which retains
register and SRAM state, but no clocks, and allows wakeup only
from I/O pins. Figure 6-3 illustrates the allowable transitions
between power modes.
„ Alternate Active
„ Sleep
„ Hibernate
Document Number: 001-53304 Rev. *B
Page 25 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 6-2. Power Modes
Power Modes
Description
Entry Condition Wakeup Source
Active Clocks
Regulator
Active
Primary mode of operation, all Wakeup, reset,
peripherals available (program- manual register
entry
mable)
Any interrupt
Any (programmable)
All regulators available.
Digital and analog
regulators can be disabled
if external regulation used.
Alternate
Active
Manual register
Similar to Active mode, and is
entry
typically configured to have
fewer peripherals active to
reduce power. One possible
configuration is to turn off the
CPU and Flash, and run peripherals at full speed
Any interrupt
Any (programmable)
All regulators available.
Digital and analog
regulators can be disabled
if external regulation used.
Sleep
All subsystems automatically
disabled
PICU,
ILO/ECO32K
comparator, I2C,
RTC, CTW,
XRES_N, WDR,
PPOR, HBR
Both digital and analog
regulators buzzed.
Digital and analog
regulators can be disabled
if external regulation used.
Hibernate
Manual register
All subsystems automatically
entry
disabled
Lowest power consuming mode
with all peripherals and internal
regulators disabled, except
hibernate regulator is enabled
Configuration and memory
contents retained
PICU, XRES_N,
HBR
Only hibernate regulator
active.
Manual register
entry
Table 6-3. Power Modes Wakeup Time and Power Consumption
Sleep
Modes
Wakeup
Time
Power
(typ)
Code
Execution
Digital
Resources
Analog
Resources
Clock Sources
Available
Wakeup Sources Reset Sources
Active
-
1.2 mA[5] Yes
All
All
All
-
All
Alternate
Active
-
TBD
User
defined
All
All
All
-
All
<12 µs
1 µA
No
I2C
Comparator ILO/kHzECO
PICU, comparator, XRES, LVD,
I2C, RTC, CTW
WDR
200 nA
No
None
None
PICU
Sleep
Hibernate <100 µs
XRES, HRES
Active
resource is disabled, the digital clocks are gated, analog bias
currents are disabled, and leakage currents are reduced as
appropriate. User firmware can dynamically control subsystem
power by setting and clearing bits in the active configuration
template. The CPU can disable itself, in which case the CPU is
automatically reenabled at the next wakeup event.
Sleep
When a wakeup event occurs, the global mode is always
returned to active, and the CPU is automatically enabled,
regardless of its template settings. Active mode is the default
global power mode upon boot.
Figure 6-3. Power Mode Transitions
Alternate
Active
None
Hibernate
6.2.1.2 Alternate Active Mode
6.2.1.1 Active Mode
Active mode is the primary operating mode of the device. When
in active mode, the active configuration template bits control
which available resources are enabled or disabled. When a
Alternate Active mode is very similar to Active mode. In alternate
active mode, fewer subsystems are enabled, to reduce power
consumption. One possible configuration is to turn off the CPU
and Flash, and run peripherals at full speed.
Note
5. IMO 6 MHz, CPU 6 MHz, all peripherals disabled.
Document Number: 001-53304 Rev. *B
Page 26 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
6.2.1.3 Sleep Mode
Sleep mode reduces power consumption when a resume time of
12 µs is acceptable. The wake time is used to ensure that the
regulator outputs are stable enough to directly enter active
mode.
6.2.1.4 Hibernate Mode
In hibernate mode nearly all of the internal functions are
disabled. Internal voltages are reduced to the minimal level to
keep vital systems alive. Configuration state is preserved in
hibernate mode and SRAM memory is retained. GPIOs
configured as digital outputs maintain their previous values and
external GPIO pin interrupt settings are preserved. The
hibernate reset (HRES) occurs if the internal voltage falls below
the minimum level required for state retention. The device can
only return from hibernate mode in response to an external I/O
interrupt. The resume time from hibernate mode is less than
100 µs.
6.2.1.5 Wakeup Events
Wakeup events are configurable and can come from an interrupt
or device reset. A wakeup event restores the system to active
mode. Firmware enabled interrupt sources include internally
generated interrupts, power supervisor, central timewheel, and
I/O interrupts. Internal interrupt sources can come from a variety
of peripherals, such as analog comparators and UDBs. The
central timewheel provides periodic interrupts to allow the
system to wake up, poll peripherals, or perform real-time
functions. Reset event sources include the external reset I/O pin
(XRES), WDT, and Precision Reset (PRES).
6.2.2 Boost Converter
Applications that use a supply voltage of less than 1.71V, such
as solar or single cell battery supplies, may use the on-chip boost
converter. The boost converter may also be used in any system
that requires a higher operating voltage than the supply provides.
For instance, this includes driving 5.0V LCD glass in a 3.3V
system. The boost converter accepts an input voltage as low as
0.5V. With one low cost inductor it produces a selectable output
voltage sourcing enough current to operate the PSoC and other
on-board components.
The boost converter accepts an input voltage from 0.5V to 5.5V
(Vbat). The converter provides a user configurable output
voltage of 1.8 to 5.0V (Vboost); Vbat must be less than Vboost.
The block can deliver up to 50 mA (Iboost) depending on configuration.
Four pins are associated with the boost converter: Vbat, Vssb,
Vboost, and Ind. The boosted output voltage is sensed at the
Vboost pin and must be connected directly to the chip’s supply
inputs. An inductor is connected between the Vbat and Ind pins.
The designer can optimize the inductor value to increase the
boost converter efficiency based on input voltage, output
voltage, current and switching frequency. The External Schottky
diode shown in Figure 6-4 is required only in cases when
Vboost>3.6V.
Figure 6-4. Application for Boost Converter
Vboost
Optional
Schottky Diode
Only required
Vboost > 3.6V
Vdda Vddd Vddio
Ind
22 µF 0. 1 µF
10 µH
SMP
PSoC
Vbat
22 µF
Vssb
Vssa
Vssd
The boost converter can be operated in two different modes:
active and standby. Active mode is the normal mode of operation
where the boost regulator actively generates a regulated output
voltage. In standby mode, most boost functions are disabled,
thus reducing power consumption of the boost circuit. The
converter can be configured to provide low power, low current
regulation in the standby mode. The external 32 kHz crystal can
be used to generate inductor boost pulses on the rising and
falling edge of the clock when the output voltage is less than the
programmed value. This is called automatic thump mode (ATM).
The boost typically draws 200 µA in active mode and 12 µA in
standby mode. The boost operating modes must be used in
conjunction with chip power modes to minimize the total chip
power consumption. Table 6-4 lists the boost power modes
available in different chip power modes.
Table 6-4. Chip and Boost Power Modes Compatibility
Chip Power Modes
Boost Power Modes
Chip -Active mode
Boost can be operated in either active
or standby mode.
Chip -Sleep mode
Boost can be operated in either active
or standby mode. However, it is recommended to operate boost in standby
mode for low power consumption
Chip-Hibernate mode
Boost can only be operated in active
mode. However, it is recommended not
to use boost in chip hibernate mode
due to high current consumption in
boost active mode
The switching frequency can be set to 100 kHz, 400 kHz, 2 MHz,
or 32 kHz to optimize efficiency and component cost. The 100
kHz, 400 kHz, and 2 MHz switching frequencies are generated
using oscillators internal to the boost converter block. When the
32 kHz switching frequency is selected, the clock is derived from
a 32 kHz external crystal oscillator. The 32 kHz external clock is
primarily intended for boost standby mode.
If the boost converter is not used in a given application, tie the
Vbat, Vssb, and Vboost pins to ground and leave the Ind pin
unconnected.
Document Number: 001-53304 Rev. *B
Page 27 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
6.3 Reset
CY8C34 has multiple internal and external reset sources
available. The reset sources are:
„ Power source monitoring - The analog and digital power
voltages, Vdda, Vddd, Vcca, and Vccd are monitored in several
different modes during power up, normal operation, and sleep
and hibernate states. If any of the voltages goes outside predetermined ranges then a reset is generated. The monitors are
programmable to generate an interrupt to the processor under
certain conditions before reaching the reset thresholds.
„ External - The device can be reset from an external source by
pulling the reset pin (XRES) low. The XRES pin includes an
internal pull up to Vddio1. Vddd, Vdda, and Vddio1 must all
have voltage applied before the part comes out of reset.
„ Watchdog timer - A watchdog timer monitors the execution of
instructions by the processor. If the watchdog timer is not reset
by firmware within a certain period of time, the watchdog timer
generates a reset.
„ Software - The device can be reset under program control.
hold their reset state. The monitor generates a reset pulse that
is at least 100 ns wide. It may be much wider if one or more of
the voltages ramps up slowly.
To save power the IPOR circuit is disabled when the internal
digital supply is stable. Voltage supervision is then handed off
to the precise low voltage reset (PRES) circuit. When the voltage is high enough for PRES to release, the IMO starts.
„ PRES - Precise Low Voltage Reset
This circuit monitors the outputs of the analog and digital internal regulators after power up. The regulator outputs are compared to a precise reference voltage of 1.6V ±0.02V. The response to a PRES trip is identical to an IPOR reset.
In normal operating mode, the program cannot disable the digital PRES circuit. The analog regulator can be disabled, which
also disables the analog portion of the PRES. The PRES circuit is disabled automatically during sleep and hibernate
modes, with one exception: During sleep mode the regulators
are periodically activated (buzzed) to provide supervisory services and to reduce wakeup time. At these times the PRES
circuit is also buzzed to allow periodic voltage monitoring.
„ HRES - Hibernate/Sleep Low Voltage Reset
Figure 6-5. Resets
This circuit monitors internal voltage and issues a reset if the
voltage drops below a point where state information may be
lost. The response to a HRES trip is identical to an IPOR reset.
Vddd Vdda
Power
Voltage
Level
Monitors
Processor
Interrupt
This circuit is ultra low power. It is enabled at all times but its
output only causes a reset when the device is in hibernate or
sleep mode.
„ ALVI, DLVI, AHVI - Analog/Digital Low Voltage Interrupt, Analog
Reset
Pin
External
Reset
High Voltage Interrupt
Reset
Controller
System
Reset
Watchdog
Timer
Software
Reset
Register
The term device reset indicates that the processor as well as
analog and digital peripherals and registers are reset.
A reset status register holds the source of the most recent reset
or power voltage monitoring interrupt. The program may
examine this register to detect and report exception conditions.
This register is cleared after a power on reset.
6.3.1 Reset Sources
6.3.1.1 Power Voltage Level Monitors
„ IPOR - Initial Power on Reset
At initial power on, IPOR monitors the power voltages Vddd
and Vdda, both directly at the pins and at the outputs of the
corresponding internal regulators. The trip level is not precise.
It is set to a voltage below the lowest specified operating voltage but high enough for the internal circuits to be reset and to
Document Number: 001-53304 Rev. *B
Interrupt circuits are available to detect when Vdda and Vddd
go outside a voltage range. For AHVI, Vdda is compared to a
fixed trip level. For ALVI and DLVI, Vdda and Vddd are compared to trip levels that are programmable, as listed in
Table 6-5.
Table 6-5. Analog/Digital Low Voltage Interrupt, Analog High
Voltage Interrupt
Interrupt Supply
Normal
Voltage
Range
Available Trip
Accuracy
Settings
DLVI
Vddd
1.71V-5.5V 1.70V-5.45V in
250 mV
increments
±2%
ALVI
Vdda
1.71V-5.5V 1.70V-5.45V in
250 mV
increments
±2%
AHVI
Vdda
1.71V-5.5V 5.75V
±2%
The monitors are disabled until after IPOR. During sleep mode
these circuits are periodically activated (buzzed). If an interrupt
occurs during buzzing then the system first enters its wake up
sequence. The interrupt is then recognized and may be serviced.
6.3.1.2 Other Reset Sources
„ XRES - External Reset
Page 28 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
PSoC 3 has either a single GPIO pin that is configured as an
external reset or a dedicated XRES pin. Either the dedicated
XRES pin or the GPIO pin, if configured, holds the part in reset
while held active (low). The response to an XRES is the same
as to an IPOR reset.
The external reset is active low. It includes an internal pull up
resistor. XRES is active during sleep and hibernate modes.
„ SRES - Software Reset
A reset can be commanded under program control by setting
a bit in the software reset register. This is done either directly
by the program or indirectly by DMA access. The response to
a SRES is the same as after an IPOR reset.
Another register bit exists to disable this function.
„ WRES - Watchdog Timer Reset
The watchdog reset detects when the software program is no
longer being executed correctly. To indicate to the watchdog
timer that it is running correctly, the program must periodically
reset the timer. If the timer is not reset before a user-specified
amount of time, then a reset is generated.
Note IPOR disables the watchdog function. The program must
enable the watchdog function at an appropriate point in the code
by setting a register bit. When this bit is set, it cannot be cleared
again except by an IPOR power on reset event.
6.4 I/O System and Routing
PSoC I/Os are extremely flexible. Every GPIO has analog and
digital I/O capability. All I/Os have a large number of drive modes,
which are set at POR. PSoC also provides up to four individual
I/O voltage domains through the Vddio pins.
There are two types of I/O pins on every device; those with USB
provide a third type. Both General Purpose I/O (GPIO) and
Special I/O (SIO) provide similar digital functionality. The primary
differences are their analog capability and drive strength.
Devices that include USB also provide two USBIO pins that
support specific USB functionality as well as limited GPIO
capability.
All I/O pins are available for use as digital inputs and outputs for
both the CPU and digital peripherals. In addition, all I/O pins can
generate an interrupt. The flexible and advanced capabilities of
the PSoC I/O, combined with any signal to any pin routability,
greatly simplify circuit design and board layout. All GPIO pins can
be used for analog input, CapSense[4], and LCD segment drive,
Document Number: 001-53304 Rev. *B
while SIO pins are used for voltages in excess of Vdda and for
programmable output voltages.
„ Features supported by both GPIO and SIO:
User programmable port reset state
Separate I/O supplies and voltages for up to four groups of I/O
‡ Digital peripherals use DSI to connect the pins
‡ Input or output or both for CPU and DMA
‡ Eight drive modes
‡ Every pin can be an interrupt source configured as rising
edge, falling edge or both edges. If required, level sensitive
interrupts are supported through the DSI
‡ Dedicated port interrupt vector for each port
‡ Slew rate controlled digital output drive mode
‡ Access port control and configuration registers on either port
basis or pin basis
‡ Separate port read (PS) and write (DR) data registers to avoid
read modify write errors
‡ Special functionality on a pin by pin basis
‡
‡
„ Additional features only provided on the GPIO pins:
LCD segment drive on LCD equipped devices
CapSense[4]
‡ Analog input and output capability
‡ Continuous 100 µA clamp current capability
‡ Standard drive strength down to 1.7V
‡
‡
„ Additional features only provided on SIO pins:
Higher drive strength than GPIO
Hot swap capability (5V tolerance at any operating Vdd)
‡ Programmable and regulated high input and output drive
levels down to 1.2V
‡ No analog input, CapSense, or LCD capability
‡ Over voltage tolerance up to 5.5V
‡ SIO can act as a general purpose analog comparator
‡
‡
„ USBIO features:
Full speed USB 2.0 compliant I/O
Highest drive strength for general purpose use
‡ Input, output, or both for CPU and DMA
‡ Input, output, or both for digital peripherals
‡ Digital output (CMOS) drive mode
‡ Each pin can be an interrupt source configured as rising
edge, falling edge, or both edges
‡
‡
Page 29 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 6-6. GPIO Block Diagram
Digital Input Path
Naming Convention
‘x’ = Port Number
‘y’ = Pin Number
PRT[x]CTL
PRT[x]DBL_SYNC_IN
PRT[x]PS
Digital System Input
PICU[x]INTTYPE[y]
Input Buffer Disable
PICU[x]INTSTAT
Interrupt
Logic
Pin Interrupt Signal
PICU[x]INTSTAT
Digital Output Path
PRT[x]SLW
PRT[x]SYNC_OUT
Vio Vio
PRT[x]DR
0
In
Digital System Output
1
Vio
PRT[x]BYP
Drive
Logic
PRT[x]DM2
PRT[x]DM1
PRT[x]DM0
Bidirectional Control
PRT[x]BIE
Analog
Slew
Cntl
PIN
OE
1
0
1
Capsense Global Control
0
1
CAPS[x]CFG1
Switches
PRT[x]AG
Analog Global Enable
PRT[x]AMUX
Analog Mux Enable
LCD
Display
Data
PRT[x]LCD_COM_SEG
Logic & MUX
PRT[x]LCD_EN
LCD Bias Bus
Document Number: 001-53304 Rev. *B
5
Page 30 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 6-7. SIO Input/Output Block Diagram
Digital Input Path
PRT[x]SIO_HYST_EN
PRT[x]SIO_DIFF
Reference Level
PRT[x]DBL_SYNC_IN
Naming Convention
‘x’ = Port Number
‘y’ = Pin Number
Buffer
Thresholds
PRT[x]PS
Digital System Input
PICU[x]INTTYPE[y]
Input Buffer Disable
PICU[x]INTSTAT
Interrupt
Logic
Pin Interrupt Signal
PICU[x]INTSTAT
Digital Output Path
Reference Level
PRT[x]SIO_CFG
PRT[x]SLW
PRT[x]SYNC_OUT
PRT[x]DR
Driver
Vhigh
0
Digital System Output
In
1
PRT[x]BYP
Drive
Logic
PRT[x]DM2
PRT[x]DM1
PRT[x]DM0
Bidirectional Control
PRT[x]BIE
Slew
Cntl
PIN
OE
Figure 6-8. USBIO Block Diagram
Digital Input Path
Naming Convention
‘x’ = Port Number
‘y’ = Pin Number
USB Receiver Circuitry
PRT[x]DBL_SYNC_IN
USBIO_CR1[0,1]
Digital System Input
PICU[x]INTTYPE[y]
PICU[x]INTSTAT
Interrupt
Logic
Pin Interrupt Signal
PICU[x]INTSTAT
Digital Output Path
PRT[x]SYNC_OUT
D+ pin only
USBIO_CR1[7]
USB or I/O
Vio
USB SIE Control for USB Mode
USBIO_CR1[4,5]
Digital System Output
PRT[x]BYP
Vio
3.3V Vio
0
In
1
Drive
Logic
5k
1.5k
PIN
USBIO_CR1[2]
USBIO_CR1[3]
USBIO_CR1[6]
Document Number: 001-53304 Rev. *B
D+ 1.5k
D+D- 5k
Open Drain
Page 31 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
bypass mode is selected. Note that the actual I/O pin voltage is
determined by a combination of the selected drive mode and the
load at the pin. For example, if a GPIO pin is configured for
resistive pull up mode and driven high while the pin is floating,
the voltage measured at the pin is a high logic state. If the same
GPIO pin is externally tied to ground then the voltage unmeasured at the pin is a low logic state.
6.4.1 Drive Modes
Each GPIO and SIO pin is individually configurable into one of
the eight drive modes listed in Table 6-6. Three configuration bits
are used for each pin (DM[2:0]) and set in the PRTxDM[2:0]
registers. Figure 6-9 depicts a simplified pin view based on each
of the eight drive modes. Table 6-6 shows the I/O pin’s drive state
based on the port data register value or digital array signal if
Figure 6-9. Drive Mode
Vio
DR
PS
0.
Pin
High Impedance
Analog
DR
PS
1.
Pin
High Impedance
Digital
DR
PS
Pin
4. Open Drain,
Drives Low
DR
PS
2. Resistive
Pull Up
Pin
3. Resistive
Pull Down
Vio
Pin
5. Open Drain,
Drives High
DR
PS
Pin
Vio
DR
PS
Vio
Vio
DR
PS
DR
PS
Pin
6. Strong Drive
Pin
7. Resistive
Pull Up and Down
Table 6-6. Drive Modes
Diagram
Drive Mode
PRTxDM2
PRTxDM1
PRTxDM0
PRTxDR = 1
PRTxDR = 0
0
High impedence analog
0
0
0
High-Z
High-Z
1
High Impedance digital
0
0
1
High-Z
High-Z
2
Resistive pull up
0
1
0
Res High (5K)
Strong Low
3
Resistive pull down
0
1
1
Strong High
Res Low (5K)
4
Open drain, drives low
1
0
0
High-Z
Strong Low
5
Open drain, drive high
1
0
1
Strong High
High-Z
6
Strong drive
1
1
0
Strong High
Strong Low
7
Resistive pull up and pull down
1
1
1
Res High (5K)
Res Low (5K)
„ High Impedance Analog
The default reset state with both the output driver and digital
input buffer turned off. This prevents any current from flowing
in the I/O’s digital input buffer due to a floating voltage. This
state is recommended for pins that are floating or that support
an analog voltage. High impedance analog pins do not provide
digital input functionality.
Document Number: 001-53304 Rev. *B
To achieve the lowest chip current in sleep modes, all I/Os
must either be configured to the high impedance analog mode,
or have their pins driven to a power supply rail by the PSoC
device or by external circuitry.
„ High Impedance Digital
The input buffer is enabled for digital signal input. This is the
standard high impedance (HiZ) state recommended for digital
inputs.
Page 32 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
„ Resistive Pull Up or Resistive Pull Down
Resistive pull up or pull down, respectively, provides a series
resistance in one of the data states and strong drive in the
other. Pins can be used for digital input and output in these
modes. Interfacing to mechanical switches is a common application for these modes.
„ Open Drain, Drives High and Open Drain, Drives Low
Open drain modes provide high impedance in one of the data
states and strong drive in the other. Pins can be used for digital
input and output in these modes. A common application for
these modes is driving the I2C bus signal lines.
„ Strong Drive
Provides a strong CMOS output drive in either high or low
state. This is the standard output mode for pins. Strong Drive
mode pins must not be used as inputs under normal circumstances. This mode is often used to drive digital output signals
or external FETs.
„ Resistive Pull Up and Pull Down
Similar to the resistive pull up and resistive pull down modes
except the pin is always in series with a resistor. The high data
state is pull up while the low data state is pull down. This mode
is most often used when other signals that may cause shorts
can drive the bus.
6.4.2 Pin Registers
Registers to configure and interact with pins come in two forms
that may be used interchangeably.
All I/O registers are available in the standard port form, where
each bit of the register corresponds to one of the port pins. This
register form is efficient for quickly reconfiguring multiple port
pins at the same time.
I/O registers are also available in pin form, which combines the
eight most commonly used port register bits into a single register
for each pin. This enables very fast configuration changes to
individual pins with a single register write.
6.4.3 Bidirectional Mode
High speed bidirectional capability allows pins to provide both
the high impedance digital drive mode for input signals and a
second user selected drive mode such as strong drive (set using
PRTxDM[2:0] registers) for output signals on the same pin,
based on the state of an auxiliary control bus signal. The bidirectional capability is useful for processor busses and communications interfaces such as the SPI Slave MISO pin that requires
dynamic hardware control of the output buffer.
The auxiliary control bus routes up to 16 UDB or digital peripheral
generated output enable signals to one or more pins.
6.4.4 Slew Rate Limited Mode
GPIO and SIO pins have fast and slow output slew rate options
for strong and open drain drive modes, not resistive drive modes.
Because it results in reduced EMI, the slow edge rate option is
recommended for signals that are not speed critical, generally
less than 1 MHz. The fast slew rate is for signals between 1 MHz
and 33 MHz. The slew rate is individually configurable for each
pin, and is set by the PRTxSLW registers.
Document Number: 001-53304 Rev. *B
6.4.5 Pin Interrupts
All GPIO and SIO pins are able to generate interrupts to the
system. All eight pins in each port interface to their own Port
Interrupt Control Unit (PICU) and associated interrupt vector.
Each pin of the port is independently configurable to detect rising
edge, falling edge, both edge interrupts, or to not generate an
interrupt.
Depending on the configured mode for each pin, each time an
interrupt event occurs on a pin, its corresponding status bit of the
interrupt status register is set to “1” and an interrupt request is
sent to the interrupt controller. Each PICU has its own interrupt
vector in the interrupt controller and the pin status register
providing easy determination of the interrupt source down to the
pin level.
Port pin interrupts remain active in all sleep modes allowing the
PSoC device to wake from an externally generated interrupt.
While level sensitive interrupts are not directly supported;
Universal Digital Blocks (UDB) provide this functionality to the
system when needed.
6.4.6 Input Buffer Mode
GPIO and SIO input buffers can be configured at the port level
for the default CMOS input thresholds or the optional LVTTL
input thresholds. All input buffers incorporate Schmitt triggers for
input hysteresis. Additionally, individual pin input buffers can be
disabled in any drive mode.
6.4.7 I/O Power Supplies
Up to four I/O pin power supplies are provided depending on the
device and package. Each I/O supply must be less than or equal
to the voltage on the chip’s analog (Vdda) pin. This feature allows
users to provide different I/O voltage levels for different pins on
the device. Refer to the specific device package pinout to
determine Vddio capability for a given port and pin.
The SIO port pins support an additional regulated high output
capability, as described in Adjustable Output Level.
6.4.8 Analog Connections
These connections apply only to GPIO pins. All GPIO pins may
be used as analog inputs or outputs. The analog voltage present
on the pin must not exceed the Vddio supply voltage to which the
GPIO belongs. Each GPIO may connect to one of the analog
global busses or to one of the analog mux buses to connect any
pin to any internal analog resource such as ADC or comparators.
In addition, select pins provide direct connections to specific
analog features such as the high current DACs or uncommitted
opamps.
6.4.9 CapSense
This section applies only to GPIO pins. All GPIO pins may be
used to create CapSense buttons and sliders[4]. See the
“CapSense” section on page 56 for more information.
6.4.10 LCD Segment Drive
This section applies only to GPIO pins. All GPIO pins may be
used to generate Segment and Common drive signals for direct
glass drive of LCD glass. See the “LCD Direct Drive” section on
page 55 for details.
Page 33 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
6.4.11 Adjustable Output Level
This section applies only to SIO pins. SIO port pins support the
ability to provide a regulated high output level for interface to
external signals that are lower in voltage than the SIO’s
respective Vddio. SIO pins are individually configurable to output
either the standard Vddio level or the regulated output, which is
based on an internally generated reference. Typically a voltage
DAC (VDAC) is used to generate the reference. The “DAC”
section on page 56 has more details on VDAC use and reference
routing to the SIO pins.
6.4.12 Adjustable Input Level
This section applies only to SIO pins. SIO pins by default support
the standard CMOS and LVTTL input levels but also support a
differential mode with programmable levels. SIO pins are
grouped into pairs. Each pair shares a reference generator block
which, is used to set the digital input buffer reference level for
interface to external signals that differ in voltage from Vddio. The
reference sets the pins voltage threshold for a high logic level.
Available input thresholds are:
„ 0.5 × Vddio
„ 0.4 × Vddio
„ 0.5 × Vref
„ Vref
Typically a voltage DAC (VDAC) generates the Vref reference.
“DAC” section on page 56 has more details on VDAC use and
reference routing to the SIO pins.
6.4.13 SIO as Comparator
This section applies only to SIO pins. The adjustable input level
feature of the SIOs as explained in the Adjustable Input Level
section can be used to construct a comparator. The threshold for
the comparator is provided by the SIO's reference generator. The
reference generator has the option to set the analog signal
routed through the analog global line as threshold for the
comparator. Note that a pair of SIO pins share the same
threshold.
The digital input path in Figure 6-7 on page 31 illustrates this
functionality. In the figure, ‘Reference level’ is the analog signal
routed through the analog global. The hysteresis feature can
also be enabled for the input buffer of the SIO, which increases
noise immunity for the comparator.
6.4.14 Hot Swap
This section applies only to SIO pins. SIO pins support ‘hot swap’
capability to plug into an application without loading the signals
that are connected to the SIO pins even when no power is
applied to the PSoC device. This allows the unpowered PSoC to
maintain a high impedance load to the external device while also
preventing the PSoC from being powered through a GPIO pin’s
protection diode.
6.4.15 Over Voltage Tolerance
All I/O pins provide an over voltage tolerance feature at any
operating Vdd.
„ There are no current limitations for the SIO pins as they present a
„ The GPIO pins must be limited to 100 µA using a current limiting
resistor. GPIO pins clamp the pin voltage to approximately one
diode above the Vddio supply where Vddio < Vin < Vdda.
„ In case of a GPIO pin configured for analog input/output, the
analog voltage on the pin must not exceed the Vddio supply
voltage to which the GPIO belongs.
A common application for this feature is connection to a bus such
as I2C where different devices are running from different supply
voltages. In the I2C case, the PSoC chip is configured into the
Open Drain, Drives Low mode for the SIO pin. This allows an
external pull up to pull the I2C bus voltage above the PSoC pin
supply. For example, the PSoC chip could operate at 1.8V, and
an external device could run from 5V. Note that the SIO pin’s Vih
and Vil levels are determined by the associated Vddio supply pin.
The I/O pin must be configured into a high impedance drive
mode, open drain low drive mode, or pull down drive mode, for
over voltage tolerance to work properly. Absolute maximum
ratings for the device must be observed for all I/O pins.
6.4.16 Reset Configuration
By default all I/Os reset to the High Impedance Analog state but
are reprogrammable on a port-by-port basis. They can be reset
as High Impedance Analog, Pull Down, or Pull Up, based on the
application’s requirements. To ensure correct reset operation,
the port reset configuration data is stored in special nonvolatile
registers. The stored reset data is automatically transferred to
the port reset configuration registers at PPOR release.
6.4.17 Low Power Functionality
In all low power modes the I/O pins retain their state until the part
is awakened and changed or reset. To awaken the part, use a
pin interrupt, because the port interrupt logic continues to
function in all low power modes.
6.4.18 Special Pin Functionality
Some pins on the device include additional special functionality
in addition to their GPIO or SIO functionality. The specific special
function pins are listed in Pinouts on page 5. The special features
are:
„ Digital
4 to 33 MHz crystal oscillator
32.768 kHz crystal oscillator
2
‡ Wake from sleep on I C address match. Any pin can be used
for I2C if wake from sleep is not required.
‡ JTAG interface pins
‡ SWD interface pins
‡ SWV interface pins
‡ External reset
‡
‡
„ Analog
Opamp inputs and outputs
High current IDAC outputs
‡ External reference inputs
‡
‡
6.4.19 JTAG Boundary Scan
The device supports standard JTAG boundary scan chains on all
I/O pins for board level test.
high impedance load to the external circuit where Vddio < Vin < 5.5V.
Document Number: 001-53304 Rev. *B
Page 34 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
7. Digital Subsystem
7.1 Example Peripherals
The digital programmable system creates application specific
combinations of both standard and advanced digital peripherals
and custom logic functions. These peripherals and logic are then
interconnected to each other and to any pin on the device,
providing a high level of design flexibility and IP security.
The features of the digital programmable system are outlined
here to provide an overview of capabilities and architecture.
Designers do not need to interact directly with the programmable
digital system at the hardware and register level. PSoC Creator
provides a high level schematic capture graphical interface to
automatically place and route resources similar to PLDs.
The main components of the digital programmable system are:
„ Universal Digital Blocks (UDB) - These form the core function-
ality of the digital programmable system. UDBs are a collection
of uncommitted logic (PLD) and structural logic (Datapath)
optimized to create all common embedded peripherals and
customized functionality that are application or design specific.
„ Universal Digital Block Array - UDB blocks are arrayed within
a matrix of programmable interconnect. The UDB array
structure is homogeneous and allows for flexible mapping of
digital functions onto the array. The array supports extensive
and flexible routing interconnects between UDBs and the
Digital System Interconnect.
„ Digital System Interconnect (DSI) - Digital signals from
Universal Digital Blocks (UDBs), fixed function peripherals, I/O
pins, interrupts, DMA, and other system core signals are
attached to the Digital System Interconnect to implement full
featured device connectivity. The DSI allows any digital function
to any pin or other feature routability when used with the
Universal Digital Block Array.
Figure 7-1. CY8C34 Digital Programmable Architecture
The flexibility of the CY8C34 family’s Universal Digital Blocks
(UDBs) and Analog Blocks allow the user to create a wide range
of components (peripherals). The most common peripherals
were built and characterized by Cypress and are shown in the
PSoC Creator component catalog, however, users may also
create their own custom components using PSoC Creator. Using
PSoC Creator, users may also create their own components for
reuse within their organization, for example sensor interfaces,
proprietary algorithms, and display interfaces.
The number of components available through PSoC Creator is
too numerous to list in the data sheet, and the list is always
growing. An example of a component available for use in
CY8C34 family, but, not explicitly called out in this data sheet is
the UART component.
7.1.1 Example Digital Components
The following is a sample of the digital components available in
PSoC Creator for the CY8C34 family. The exact amount of
hardware resources (UDBs, routing, RAM, Flash) used by a
component varies with the features selected in PSoC Creator for
the component.
„ Communications
I2C
UART
‡ SPI
‡
‡
„ Functions
EMIF
PWMs
‡ Timers
‡ Counters
‡
‡
„ Logic
NOT
OR
‡ XOR
‡ AND
‡
‡
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
The following is a sample of the analog components available in
PSoC Creator for the CY8C34 family. The exact amount of
hardware resources (SC/CT blocks, routing, RAM, Flash) used
by a component varies with the features selected in PSoC
Creator for the component.
„ Amplifiers
UDB Array
UDB Array
DSI Routing Interface
UDB
7.1.2 Example Analog Components
IO Port
IO Port
Digital Core System
and Fixed Function Peripherals
TIA
PGA
‡ opamp
‡
‡
‡
DSI Routing Interface
Digital Core System
and Fixed Function Peripherals
IO Port
IO Port
„ ADC
Delta-Sigma
„ DACs
Current
Voltage
‡ PWM
‡
‡
„ Comparators
„ Mixers
Document Number: 001-53304 Rev. *B
Page 35 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
7.1.3 Example System Function Components
The following is a sample of the system function components
available in PSoC Creator for the CY8C34 family. The exact
amount of hardware resources (UDBs, SC/CT blocks, routing,
RAM, Flash) used by a component varies with the features
selected in PSoC Creator for the component.
„ CapSense
„ LCD Drive
„ LCD Control
7.1.4 Designing with PSoC Creator
7.1.4.1 More Than a Typical IDE
A successful design tool allows for the rapid development and
deployment of both simple and complex designs. It reduces or
eliminates any learning curve. It makes the integration of a new
design into the production stream straightforward.
PSoC Creator is that design tool.
PSoC Creator is a full featured Integrated Development
Environment (IDE) for hardware and software design. It is
optimized specifically for PSoC devices and combines a modern,
powerful software development platform with a sophisticated
graphical design tool. This unique combination of tools makes
Document Number: 001-53304 Rev. *B
PSoC Creator the most flexible embedded design platform
available.
Graphical design entry simplifies the task of configuring a
particular part. You can select the required functionality from an
extensive catalog of components and place it in your design. All
components are parameterized and have an editor dialog that
allows you to tailor functionality to your needs.
PSoC Creator automatically configures clocks and routes the I/O
to the selected pins and then generates APIs to give the application complete control over the hardware. Changing the PSoC
device configuration is as simple as adding a new component,
setting its parameters, and rebuilding the project.
At any stage of development you are free to change the
hardware configuration and even the target processor. To
retarget your application (hardware and software) to new
devices, even from 8- to 32-bit families, just select the new
device and rebuild.
You also have the ability to change the C compiler and evaluate
an alternative. Components are designed for portability and are
validated against all devices, from all families, and against all
supported tool chains. Switching compilers is as easy as editing
the from the project options and rebuilding the application with
no errors from the generated APIs or boot code.
Page 36 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 7-2. PSoC Creator Framework
Document Number: 001-53304 Rev. *B
Page 37 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
7.1.4.2 Component Catalog
7.1.4.4 Software Development
Figure 7-3. Component Catalog
Figure 7-4. Code Editor
Anchoring the tool is a modern, highly customizable user
interface. It includes project management and integrated editors
for C and assembler source code, as well the design entry tools.
The component catalog is a repository of reusable design
elements that select device functionality and customize your
PSoC device. It is populated with an impressive selection of
content; from simple primitives such as logic gates and device
registers, through the digital timers, counters and PWMs, plus
analog components such as ADC, DACs, and filters, and
communication protocols, such as I2C, USB, and CAN. See
Example Peripherals on page 35 for more details about available
peripherals. All content is fully characterized and carefully
documented in datasheets with code examples, AC/DC specifications, and user code ready APIs.
Project build control leverages compiler technology from top
commercial vendors such as ARM® Limited, Keil™, and
CodeSourcery (GNU). Free versions of Keil C51 and GNU C
Compiler (GCC) for ARM, with no restrictions on code size or end
product distribution, are included with the tool distribution.
Upgrading to more optimizing compilers is a snap with support
for the professional Keil C51 product and ARM RealView™
compiler.
7.1.4.5 Nonintrusive Debugging
Figure 7-5. PSoC Creator Debugger
7.1.4.3 Design Reuse
The symbol editor gives you the ability to develop reusable
components that can significantly reduce future design time. Just
draw a symbol and associate that symbol with your proven
design. PSoC Creator allows for the placement of the new
symbol anywhere in the component catalog along with the
content provided by Cypress. You can then reuse your content
as many times as you want, and in any number of projects,
without ever having to revisit the details of the implementation.
With JTAG (4-wire) and SWD (2-wire) debug connectivity
available on all devices, the PSoC Creator debugger offers full
control over the target device with minimum intrusion. Breakpoints and code execution commands are all readily available
from toolbar buttons and an impressive lineup of
windows—register, locals, watch, call stack, memory and peripherals—make for an unparalleled level of visibility into the system.
Document Number: 001-53304 Rev. *B
Page 38 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
PSoC Creator contains all the tools necessary to complete a
design, and then to maintain and extend that design for years to
come. All steps of the design flow are carefully integrated and
optimized for ease-of-use and to maximize productivity.
7.2 Universal Digital Block
The Universal Digital Block (UDB) represents an evolutionary
step to the next generation of PSoC embedded digital peripheral
functionality. The architecture in first generation PSoC digital
blocks provides coarse programmability in which a few fixed
functions with a small number of options are available. The new
UDB architecture is the optimal balance between configuration
granularity and efficient implementation. A cornerstone of this
approach is to provide the ability to customize the devices digital
operation to match application requirements.
„ Status and Control Module - The primary role of this block is to
provide a way for CPU firmware to interact and synchronize
with UDB operation.
„ Clock and Reset Module - This block provides the UDB clocks
and reset selection and control.
7.2.1 PLD Module
The primary purpose of the PLD blocks is to implement logic
expressions, state machines, sequencers, look up tables, and
decoders. In the simplest use model, consider the PLD blocks as
a standalone resource onto which general purpose RTL is
synthesized and mapped. The more common and efficient use
model is to create digital functions from a combination of PLD
and datapath blocks, where the PLD implements only the
random logic and state portion of the function while the datapath
(ALU) implements the more structured elements.
Figure 7-7. PLD 12C4 Structure
PT0
PT1
PT2
PT3
PT4
PT5
PT6
PT7
To achieve this, UDBs consist of a combination of uncommitted
logic (PLD), structured logic (Datapath), and a flexible routing
scheme to provide interconnect between these elements, I/O
connections, and other peripherals. UDB functionality ranges
from simple self contained functions that are implemented in one
UDB, or even a portion of a UDB (unused resources are
available for other functions), to more complex functions that
require multiple UDBs. Examples of basic functions are timers,
counters, CRC generators, PWMs, dead band generators, and
communications functions, such as UARTs, SPI, and I2C. Also,
the PLD blocks and connectivity provide full featured general
purpose programmable logic within the limits of the available
resources.
also contains input/output FIFOs, which are the primary parallel
data interface between the CPU/DMA system and the UDB.
IN0
TC
TC
TC
TC
TC
TC
TC
TC
IN1
TC
TC
TC
TC
TC
TC
TC
TC
IN2
TC
TC
TC
TC
TC
TC
TC
TC
IN3
TC
TC
TC
TC
TC
TC
TC
TC
IN4
TC
TC
TC
TC
TC
TC
TC
TC
IN5
TC
TC
TC
TC
TC
TC
TC
TC
IN6
TC
TC
TC
TC
TC
TC
TC
TC
IN7
TC
TC
TC
TC
TC
TC
TC
TC
IN8
TC
TC
TC
TC
TC
TC
TC
TC
IN9
TC
TC
TC
TC
TC
TC
TC
TC
IN10
TC
TC
TC
TC
TC
TC
TC
TC
IN11
TC
TC
TC
TC
TC
TC
TC
TC
Figure 7-6. UDB Block Diagram
PLD
Chaining
Clock
and Reset
Control
PLD
12C4
(8 PTs)
PLD
12C4
(8 PTs)
Status and
Control
Datapath
Datapath
Chaining
SELIN
(carry in)
OUT0
MC0
T
T
T
T
T
T
T
T
OUT1
MC1
T
T
T
T
T
T
T
T
OUT2
MC2
T
T
T
T
T
T
T
T
OUT3
MC3
T
T
T
T
T
T
T
T
SELOUT
(carry out)
Routing Channel
The main component blocks of the UDB are:
„ PLD blocks - There are two small PLDs per UDB. These blocks
take inputs from the routing array and form registered or combinational sum-of-products logic. PLDs are used to implement
state machines, state bits, and combinational logic equations.
PLD configuration is automatically generated from graphical
primitives.
„ Datapath Module - This 8-bit wide datapath contains structured
logic to implement a dynamically configurable ALU, a variety
of compare configurations and condition generation. This block
Document Number: 001-53304 Rev. *B
AND
Array
OR
Array
One 12C4 PLD block is shown in Figure 7-7. This PLD has 12
inputs, which feed across eight product terms. Each product term
(AND function) can be from 1 to 12 inputs wide, and in a given
product term, the true (T) or complement (C) of each input can
be selected. The product terms are summed (OR function) to
create the PLD outputs. A sum can be from 1 to 8 product terms
wide. The 'C' in 12C4 indicates that the width of the OR gate (in
this case 8) is constant across all outputs (rather than variable
as in a 22V10 device). This PLA like structure gives maximum
flexibility and insures that all inputs and outputs are permutable
for ease of allocation by the software tools. There are two 12C4
PLDs in each UDB.
Page 39 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
optimized to implement embedded functions, such as timers,
counters, integrators, PWMs, PRS, CRC, shifters and dead band
generators and many others.
7.2.2 Datapath Module
The datapath contains an 8-bit single cycle ALU, with associated
compare and condition generation logic. This datapath block is
Figure 7-8. Datapath Top Level
PHUB System Bus
R/W Access to All
Registers
F1
FIFOs
F0
A0
A1
D0
D1
D1
Data Registers
D0
To/From
Previous
Datapath
A1
Conditions: 2 Compares,
2 Zero Detect, 2 Ones
Detect Overflow Detect
Datapath Control
6
Control Store RAM
8 Word X 16 Bit
Input from
Programmable
Routing
Input
Muxes
Chaining
Output
Muxes
6
Output to
Programmable
Routing
To/From
Next
Datapath
Accumulators
A0
PI
Parallel Input/Output
(to/from Programmable Routing)
PO
ALU
Shift
Mask
7.2.2.1 Working Registers
7.2.2.2 Dynamic Datapath Configuration RAM
The datapath contains six primary working registers, which are
accessed by CPU firmware or DMA during normal operation.
Dynamic configuration is the ability to change the datapath
function and internal configuration on a cycle-by-cycle basis,
under sequencer control. This is implemented using the 8-word
x 16-bit configuration RAM, which stores eight unique 16-bit wide
configurations. The address input to this RAM controls the
sequence, and can be routed from any block connected to the
UDB routing matrix, most typically PLD logic, I/O pins, or from
the outputs of this or other datapath blocks.
Table 7-1. Working Datapath Registers
Name
Function
Description
A0 and A1 Accumulators
These are sources and sinks for
the ALU and also sources for the
compares.
D0 and D1 Data Registers
These are sources for the ALU
and sources for the compares.
F0 and F1 FIFOs
These are the primary interface
to the system bus. They can be a
data source for the data registers
and accumulators or they can
capture data from the accumulators or ALU. Each FIFO is four
bytes deep.
Document Number: 001-53304 Rev. *B
ALU
The ALU performs eight general purpose functions. They are:
„ Increment
„ Decrement
„ Add
„ Subtract
„ Logical AND
Page 40 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
„ Logical OR
„ Logical XOR
Figure 7-9. Example FIFO Configurations
System Bus
System Bus
Independent of the ALU operation, these functions are available:
„ Shift left
F0
F0
F1
D0
A0
D1
A1
„ Shift right
„ Nibble swap
„ Bitwise OR mask
D0/D1
A0/A1/ALU
A0/A1/ALU
A0/A1/ALU
F1
F0
F1
7.2.2.3 Conditionals
Each datapath has two compares, with bit masking options.
Compare operands include the two accumulators and the two
data registers in a variety of configurations. Other conditions
include zero detect, all ones detect, and overflow. These conditions are the primary datapath outputs, a selection of which can
be driven out to the UDB routing matrix. Conditional computation
can use the built in chaining to neighboring UDBs to operate on
wider data widths without the need to use routing resources.
System Bus
System Bus
TX/RX
Dual Capture
Dual Buffer
7.2.2.4 Variable MSB
7.2.2.7 Chaining
The most significant bit of an arithmetic and shift function can be
programmatically specified. This supports variable width CRC
and PRS functions, and in conjunction with ALU output masking,
can implement arbitrary width timers, counters and shift blocks.
The datapath can be configured to chain conditions and signals
such as carries and shift data with neighboring datapaths to
create higher precision arithmetic, shift, CRC/PRS functions.
7.2.2.5 Built in CRC/PRS
The datapath has built in support for single cycle Cyclic Redundancy Check (CRC) computation and Pseudo Random
Sequence (PRS) generation of arbitrary width and arbitrary
polynomial. CRC/PRS functions longer than 8 bits may be implemented in conjunction with PLD logic, or built in chaining may be
use to extend the function into neighboring UDBs.
7.2.2.6 Input/Output FIFOs
Each datapath contains two four-byte deep FIFOs, which can be
independently configured as an input buffer (system bus writes
to the FIFO, datapath internal reads the FIFO), or an output
buffer (datapath internal writes to the FIFO, the system bus reads
from the FIFO). The FIFOs generate status that are selectable
as datapath outputs and can therefore be driven to the routing,
to interact with sequencers, interrupts, or DMA.
7.2.2.8 Time Multiplexing
In applications that are over sampled, or do not need high clock
rates, the single ALU block in the datapath can be efficiently
shared with two sets of registers and condition generators. Carry
and shift out data from the ALU are registered and can be
selected as inputs in subsequent cycles. This provides support
for 16-bit functions in one (8-bit) datapath.
7.2.2.9 Datapath I/O
There are six inputs and six outputs that connect the datapath to
the routing matrix. Inputs from the routing provide the configuration for the datapath operation to perform in each cycle, and
the serial data inputs. Inputs can be routed from other UDB
blocks, other device peripherals, device I/O pins, and so on. The
outputs to the routing can be selected from the generated conditions, and the serial data outputs. Outputs can be routed to other
UDB blocks, device peripherals, interrupt and DMA controller,
I/O pins, and so on.
7.2.3 Status and Control Module
The primary purpose of this circuitry is to coordinate CPU
firmware interaction with internal UDB operation.
Figure 7-10. Status and Control Registers
System Bus
8-bit Status Register
(Read Only)
8-bit Control Register
(Write/Read)
Routing Channel
Document Number: 001-53304 Rev. *B
Page 41 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
The bits of the control register, which may be written to by the
system bus, are used to drive into the routing matrix, and thus
provide firmware with the opportunity to control the state of UDB
processing. The status register is read-only and it allows internal
UDB state to be read out onto the system bus directly from
internal routing. This allows firmware to monitor the state of UDB
processing. Each bit of these registers has programmable
connections to the routing matrix and routing connections are
made depending on the requirements of the application.
Figure 7-11. Digital System Interface Structure
System Connections
HV
B
UDB
HV
A
UDB
HV
B
UDB
HV
A
UDB
7.2.3.1 Usage Examples
As an example of control input, a bit in the control register can
be allocated as a function enable bit. There are multiple ways to
enable a function. In one method the control bit output would be
routed to the clock control block in one or more UDBs and serve
as a clock enable for the selected UDB blocks. A status example
is a case where a PLD or datapath block generated a condition,
such as a “compare true” condition that is captured and latched
by the status register and then read (and cleared) by CPU
firmware.
HV
A
HV
B
HV
A
HV
B
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
HV
B
HV
A
HV
B
HV
A
7.2.3.2 Clock Generation
Each subcomponent block of a UDB including the two PLDs, the
datapath, and Status and Control, has a clock selection and
control block. This promotes a fine granularity with respect to
allocating clocking resources to UDB component blocks and
allows unused UDB resources to be used by other functions for
maximum system efficiency.
7.3 UDB Array Description
Figure 7-11 shows an example of a 16 UDB array. In addition to
the array core, there are a DSI routing interfaces at the top and
bottom of the array. Other interfaces that are not explicitly shown
include the system interfaces for bus and clock distribution. The
UDB array includes multiple horizontal and vertical routing
channels each comprised of 96 wires. The wire connections to
UDBs, at horizontal/vertical intersection and at the DSI interface
are highly permutable providing efficient automatic routing in
PSoC Creator. Additionally the routing allows wire by wire
segmentation along the vertical and horizontal routing to further
increase routing flexibility and capability.
Document Number: 001-53304 Rev. *B
UDB
UDB
HV
A
UDB
HV
B
UDB
HV
A
HV
B
System Connections
7.3.1 UDB Array Programmable Resources
Figure 7-12 shows an example of how functions are mapped into
a bank of 16 UDBs. The primary programmable resources of the
UDB are two PLDs, one datapath and one status/control register.
These resources are allocated independently, because they
have independently selectable clocks, and therefore unused
blocks are allocated to other unrelated functions.
An example of this is the 8-bit Timer in the upper left corner of
the array. This function only requires one datapath in the UDB,
and therefore the PLD resources may be allocated to another
function. A function such as a Quadrature Decoder may require
more PLD logic than one UDB can supply and in this case can
utilize the unused PLD blocks in the 8-bit Timer UDB. Programmable resources in the UDB array are generally homogeneous
so functions can be mapped to arbitrary boundaries in the array.
Page 42 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 7-12. Function Mapping Example in a Bank of UDBs
8-Bit
Timer
UDB
Sequencer
Quadrature Decoder
UDB
HV
A
16-Bit
PWM
HV
B
Timer
Counters
16-Bit PYRS
UDB
Figure 7-13. Digital System Interconnect
CAN
Interrupt
Controller
I2C
DMA
Controller
IO Port
Pins
Global
Clocks
UDB
HV
A
HV
B
Digital System Routing I/F
UDB
UDB
UDB
8-Bit
Timer Logic
UDB
8-Bit SPI
I2C Slave
UDB ARRAY
12-Bit SPI
UDB
UDB
UDB
UDB
Digital System Routing I/F
HV
B
HV
A
HV
B
HV
A
Logic
UDB
UDB
UART
UDB
UDB
12-Bit PWM
7.4 DSI Routing Interface Description
The DSI routing interface is a continuation of the horizontal and
vertical routing channels at the top and bottom of the UDB array
core. It provides general purpose programmable routing
between device peripherals, including UDBs, I/Os, analog
peripherals, interrupts, DMA and fixed function peripherals.
Figure 7-13 illustrates the concept of the digital system interconnect, which connects the UDB array routing matrix with other
device peripherals. Any digital core or fixed function peripheral
that needs programmable routing is connected to this interface.
Global
Clocks
IO Port
Pins
EMIF
SC/CT
Blocks
DACs
Comparators
Interrupt and DMA routing is very flexible in the CY8C34
programmable architecture. In addition to the numerous fixed
function peripherals that can generate interrupt requests, any
data signal in the UDB array routing can also be used to generate
a request. A single peripheral may generate multiple
independent interrupt requests simplifying system and firmware
design. Figure 7-14 shows the structure of the IDMUX
(Interrupt/DMA Multiplexer).
Figure 7-14. Interrupt and DMA Processing in the IDMUX
Signals in this category include:
„ Interrupt requests from all digital peripherals in the system.
Del-Sig
Interrupt and DMA Processing in IDMUX
Fixed Function IRQs
0
„ DMA requests from all digital peripherals in the system.
1
„ Digital peripheral data signals that need flexible routing to I/Os.
IRQs
„ Digital peripheral data signals that need connections to UDBs.
UDB Array
2
Edge
Detect
„ Connections to the interrupt and DMA controllers.
3
DRQs
„ Connection to I/O pins.
DMA termout (IRQs)
„ Connection to analog system digital signals.
0
Fixed Function DRQs
1
Edge
Detect
Document Number: 001-53304 Rev. *B
Interrupt
Controller
DMA
Controller
2
Page 43 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
7.4.1 I/O Port Routing
There are a total of 20 DSI routes to a typical 8-bit I/O port, 16
for data and four for drive strength control.
When an I/O pin is connected to the routing, there are two
primary connections available, an input and an output. In
conjunction with drive strength control, this can implement a
bidirectional I/O pin. A data output signal has the option to be
single synchronized (pipelined) and a data input signal has the
option to be double synchronized. The synchronization clock is
the system clock (see Figure 6-1). Normally all inputs from pins
are synchronized as this is required if the CPU interacts with the
signal or any signal derived from it. Asynchronous inputs have
rare uses. An example of this is a feed through of combinational
PLD logic from input pins to output pins.
There are four more DSI connections to a given I/O port to
implement dynamic output enable control of pins. This connectivity gives a range of options, from fully ganged 8-bits controlled
by one signal, to up to four individually controlled pins. The
output enable signal is useful for creating tri-state bidirectional
pins and buses.
Figure 7-17. I/O Pin Output Enable Connectivity
4 IO Control Signal Connections from
UDB Array Digital System Interface
Figure 7-15. I/O Pin Synchronization Routing
DO
OE
PIN 0
DI
OE
PIN1
OE
PIN2
OE
PIN3
OE
PIN4
OE
PIN5
OE
PIN6
OE
PIN7
Port i
Figure 7-16. I/O Pin Output Connectivity
7.5 CAN
8 IO Data Output Connections from the
UDB Array Digital System Interface
DO
PIN 0
DO
PIN1
DO
PIN2
DO
PIN3
DO
PIN4
DO
PIN5
DO
PIN6
DO
PIN7
The CAN peripheral is a fully functional Controller Area Network
(CAN) supporting communication baud rates up to 1 Mbps. The
CAN controller implements the CAN2.0A and CAN2.0B specifications as defined in the Bosch specification and conforms to the
ISO-11898-1 standard. The CAN protocol was originally
designed for automotive applications with a focus on a high level
of fault detection. This ensures high communication reliability at
a low cost. Because of its success in automotive applications,
CAN is used as a standard communication protocol for motion
oriented machine control networks (CANOpen) and factory
automation applications (DeviceNet). The CAN controller
features allow the efficient implementation of higher level
protocols without affecting the performance of the microcontroller CPU. Full configuration support is provided in PSoC
Creator.
Port i
Document Number: 001-53304 Rev. *B
Page 44 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 7-18. CAN Bus System Implementation
CAN Node 1
CAN Node 2
CAN Node n
PSoC
CAN
Drivers
CAN Controller
En
Tx Rx
CAN Transceiver
CAN_H
CAN_L
CAN_H
CAN_L
CAN_H
CAN_L
CAN Bus
7.5.1 CAN Features
„ CAN2.0A/B protocol implementation - ISO 11898 compliant
Standard and extended frames with up to 8 bytes of data per
frame
‡ Message filter capabilities
‡ Remote Transmission Request (RTR) support
‡ Programmable bit rate up to 1 Mbps
‡
„ Listen Only mode
„ SW readable error counter and indicator
„ Sleep mode: Wake the device from sleep with activity on the
Rx pin
„ Supports two or three wire interface to external transceiver (Tx,
Rx, and Enable). The three-wire interface is compatible with
the Philips PHY; the PHY is not included on-chip. The three
wires can be routed to any I/O
„ Enhanced interrupt controller
CAN receive and transmit buffers status
‡ CAN controller error status including BusOff
‡
Document Number: 001-53304 Rev. *B
„ Receive path
16 receive buffers each with its own message filter
Enhanced hardware message filter implementation that covers the ID, IDE and RTR
‡ DeviceNet addressing support
‡ Multiple receive buffers linkable to build a larger receive message array
‡ Automatic transmission request (RTR) response handler
‡ Lost received message notification
‡
‡
„ Transmit path
Eight transmit buffers
Programmable transmit priority
• Round robin
• Fixed priority
‡ Message transmissions abort capability
‡
‡
7.5.2 Software Tools Support
CAN Controller configuration integrated into PSoC Creator:
„ CAN Configuration walkthrough with bit timing analyzer
„ Receive filter setup
Page 45 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 7-19. CAN Controller Block Diagram
TxMessage0
TxReq
TxAbort
Tx Buffer
Status
TxReq
Pending
TxMessage1
TxReq
TxAbort
Bit Timing
Priority
Arbiter
TxMessage6
TxReq
TxAbort
TxInterrupt
Request
(if enabled)
TxMessage7
TxReq
TxAbort
RxMessage0
Acceptance Code 0
Acceptance Mask 0
RxMessage1
Acceptance Code 1
Acceptance Mask 1
Rx
RxMessage
Handler
RxInterrupt
Request
(if enabled)
RxMessage14
Acceptance Code 14
Acceptance Mask 14
RxMessage15
Acceptance Code 15
Acceptance Mask 15
ErrInterrupt
Request
(if enabled)
Rx
CAN
Framer
„ Dedicated 8-byte buffer for EP0
PSoC includes a dedicated Full-Speed (12 Mbps) USB 2.0 transceiver supporting all four USB transfer types: control, interrupt,
bulk, and isochronous. The maximum data payload size is 64
bytes for control, interrupt, and bulk endpoints and 1023 bytes
for isochronous. PSoC Creator provides full configuration
support. USB interfaces to hosts through two dedicated USBIO
pins, which are detailed in the “I/O System and Routing” section
on page 29.
„ Three memory modes
„ Eight unidirectional data endpoints
„ One bidirectional control endpoint 0 (EP0)
„ Shared 512-byte buffer for the eight data endpoints
CRC Check
Error Detection
CRC
Form
ACK
Bit Stuffing
Bit Error
Overload
Arbitration
7.6 USB
USB includes the following features:
CRC
Generator
Error Status
Error Active
Error Passive
Bus Off
Tx Error Counter
Rx Error Counter
RTR RxMessages
0-15
Rx Buffer
Status
RxMessage
Available
Tx
Tx
CAN
Framer
WakeUp
Request
Manual Memory Management with No DMA Access
Manual Memory Management with Manual DMA Access
‡ Automatic Memory Management with Automatic DMA Access
‡
‡
„ Internal 3.3V regulator for transceiver
„ Internal 48 MHz main oscillator mode that auto locks to USB
bus clock, requiring no external crystal for USB (USB equipped
parts only)
„ Interrupts on bus and each endpoint event, with device wakeup
„ USB Reset, Suspend, and Resume operations
„ Bus powered and self powered modes
Document Number: 001-53304 Rev. *B
Page 46 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
„ Free run mode
Figure 7-20. USB
„ One Shot mode (stop at end of period)
Arbiter
512 X 8
SRAM
„ Complementary PWM outputs with deadband
System Bus
„ PWM output kill
SIE
(Serial Interface
Engine)
Figure 7-21. Timer/Counter/PWM
USB
IO
D+
D-
Interrupts
48 MHz
IMO
Clock
Reset
Enable
Capture
Kill
Timer / Counter /
PWM 16-bit
IRQ
TC / Compare!
Compare
7.8 I2C
7.7 Timers, Counters, and PWMs
The Timer/Counter/PWM peripheral is a 16-bit dedicated
peripheral providing three of the most common embedded
peripheral features. As almost all embedded systems use some
combination of timers, counters, and PWMs. Four of them have
been included on this PSoC device family. Additional and more
advanced functionality timers, counters, and PWMs can also be
instantiated in Universal Digital Blocks (UDBs) as required.
PSoC Creator allows designers to choose the timer, counter, and
PWM features that they require. The tool set utilizes the most
optimal resources available.
The Timer/Counter/PWM peripheral can select from multiple
clock sources, with input and output signals connected through
the DSI routing. DSI routing allows input and output connections
to any device pin and any internal digital signal accessible
through the DSI. Each of the four instances has a compare
output, terminal count output (optional complementary compare
output), and programmable interrupt request line. The
Timer/Counter/PWMs are configurable as free running, one shot,
or Enable input controlled. The peripheral has timer reset and
capture inputs, and a kill input for control of the comparator
outputs. The peripheral supports full 16-bit capture.
Timer/Counter/PWM features include:
„ 16-bit Timer/Counter/PWM (down count only)
„ Selectable clock source
„ PWM comparator (configurable for LT, LTE, EQ, GTE, GT)
„ Period reload on start, reset, and terminal count
„ Interrupt on terminal count, compare true, or capture
„ Dynamic counter reads
„ Timer capture mode
„ Count while enable signal is asserted mode
The I2C peripheral provides a synchronous two wire interface
designed to interface the PSoC device with a two wire I2C serial
communication bus. The bus is compliant with Philips ‘The I2C
Specification’ version 2.1. Additional I2C interfaces can be
instantiated using Universal Digital Blocks (UDBs) in PSoC
Creator, as required.
To eliminate the need for excessive CPU intervention and
overhead, I2C specific support is provided for status detection
and generation of framing bits. I2C operates as a slave, a master,
or multimaster (Slave and Master). In slave mode, the unit
always listens for a start condition to begin sending or receiving
data. Master mode supplies the ability to generate the Start and
Stop conditions and initiate transactions. Multimaster mode
provides clock synchronization and arbitration to allow multiple
masters on the same bus. If Master mode is enabled and Slave
mode is not enabled, the block does not generate interrupts on
externally generated Start conditions. I2C interfaces through the
DSI routing and allows direct connections to any GPIO or SIO
pins.
I2C provides hardware address detect of a 7-bit address without
CPU intervention. Additionally the device can wake from low
power modes on a 7-bit hardware address match. If wakeup
functionality is required, I2C pin connections are limited to the
two special sets of SIO pins.
I2C features include:
„ Slave and Master, Transmitter, and Receiver operation
„ Byte processing for low CPU overhead
„ Interrupt or polling CPU interface
„ Support for bus speeds up to 1 Mbps (3.4 Mbps in UDBs)
„ 7 or 10-bit addressing (10-bit addressing requires firmware
support)
„ SMBus operation (through firmware support - SMBus
supported in hardware in UDBs)
„ 7-bit hardware address compare
„ Wake from low power modes on address match
Document Number: 001-53304 Rev. *B
Page 47 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
„ Four comparators with optional connection to configurable LUT
8. Analog Subsystem
outputs.
The analog programmable system creates application specific
combinations of both standard and advanced analog signal
processing blocks. These blocks are then interconnected to
each other and also to any pin on the device, providing a high
level of design flexibility and IP security. The features of the
analog subsystem are outlined here to provide an overview of
capabilities and architecture.
„ Flexible, configurable analog routing architecture provided by
„ Two configurable switched capacitor/continuous time (SC/CT)
blocks for functions that include opamp, unity gain buffer,
programmable gain amplifier, transimpedance amplifier, and
mixer.
„ Two opamps for internal use and connection to GPIO that can
be used as high current output buffers.
„ CapSense subsystem to enable capacitive touch sensing.
analog globals, analog mux bus, and analog local buses.
„ Precision reference for generating an accurate analog voltage
„ High resolution Delta-Sigma ADC.
for internal analog blocks.
„ Two 8-bit DACs that provide either voltage or current output.
Figure 8-1. Analog Subsystem Block Diagram
DAC
DAC
Precision
Reference
DAC
SC/CT Block
SC/CT Block
SC/CT Block
Op
amp
Op
amp
Op
amp
SC/CT Block
Comparators
CMP
CMP
CMP
A
N
A
L
O
G
Op
amp
R
O
U
T
I
N
G
DelSig
ADC
GPIO
Port
A
N
A
L
O
G
DAC
CMP
GPIO
Port
R
O
U
T
I
N
G
CapSense Subsystem
Analog
Interface
DSI
Array
Clock
Distribution
The PSoC Creator software program provides a user friendly
interface to configure the analog connections between the GPIO
and various analog resources and connections from one analog
resource to another. PSoC Creator also provides component
libraries that allow you to configure the various analog blocks to
Document Number: 001-53304 Rev. *B
Config &
Status
Registers
AHB
PHUB
CPU
Decimator
perform application specific functions (PGA, transimpedance
amplifier, voltage DAC, current DAC, and so on). The tool also
generates API interface libraries that allow you to write firmware
that allows the communication between the analog peripheral
and CPU/Memory.
Page 48 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
8.1 Analog Routing
The CY8C34 family of devices has a flexible analog routing
architecture that provides the capability to connect GPIOs and
different analog blocks, and also route signals between different
analog blocks. One of the strong points of this flexible routing
architecture is that it allows dynamic routing of input and output
connections to the different analog blocks.
8.1.1 Features
„ Flexible, configurable analog routing architecture
„ 16 Analog globals (AG) and two analog mux buses
(AMUXBUS) to connect GPIOs and the analog blocks
„ Each GPIO is connected to one analog global and one analog
„ Multiplexers and switches for input and output selection of the
analog blocks
8.1.2 Functional Description
Analog globals (AGs) and analog mux buses (AMUXBUS)
provide analog connectivity between GPIOs and the various
analog blocks. There are 16 AGs in the CY8C34 family. The
analog routing architecture is divided into four quadrants as
shown in Figure 8-2. Each quadrant has four analog globals
(AGL[0..3], AGL[4..7], AGR[0..3], AGR[4..7]). Each GPIO is
connected to the corresponding AG through an analog switch.
The analog mux bus is a shared routing resource that connects
to every GPIO through an analog switch. There are two
AMUXBUS routes in CY8C34, one in the left half (AMUXBUSL)
and one in the right half (AMUXBUSR), as shown in Figure 8-2.
mux bus
„ 8 Analog local buses (abus) to route signals between the
different analog blocks
Document Number: 001-53304 Rev. *B
Page 49 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 8-2. CY8C34 Analog Interconnect
*
*
*
*
GPIO
P3[5]
GPIO
P3[4]
GPIO
P3[3]
GPIO
P3[2]
GPIO
P3[1]
GPIO
P3[0]
GPXT
* P15[1]
GPXT
* P15[0]
3210 76543210
*
*
i2
*
ExVrefR
+
1.024V
comp3 +
comp2
-
vda, vda/2
sc0
Vin
Vref
out
Vssa
1.024V
*
v0
i0
* P15[7]
USB IO
* P15[6]
+ dsm0
-
DSM
refs
0.7V
vda,
vda/4
ExVrefR
01 23 456 7 0123
3210 76543210
AGL[1]
AGL[2]
AGL[3]
AGR[3]
AGR[2]
AGR[1]
AUX
ADC
:
AMUXBUSR
ANALOG ANALOG
BUS
GLOBALS
VBE
VSS ref
LPF
AGR[3]
AGR[2]
AGR[1]
AGR[0]
AMUXBUSR
Vb
Vssd
Vbat
XRES_N
Ind
Vssb
Vssio
*
*
*
Document Number: 001-53304 Rev. *B
*
Large (lower z)
*
Size
Small (higher z)
*
Vio1
*
GPIO
P2[5]
GPIO
P2[6]
GPIO
P2[7]
SIO
P12[4]
SIO
P12[5]
GPIO
P6[4]
GPIO
P6[5]
GPIO
P6[6]
GPIO
P6[7]
*
*
13
*
GPIO
P5[0]
GPIO
P5[1]
GPIO
P5[2]
GPIO
P5[3]
GPIO
P1[0]
GPIO
P1[1]
GPIO
P1[2]
GPIO
P1[3]
GPIO
P1[4]
GPIO
P1[5]
*
AGL[3]
AGL[2]
AGL[1]
AGL[0]
AMUXBUSL
*
AMUXBUSL
AGL[0]
ANALOG ANALOG
GLOBALS
BUS
AGR[0]
AMUXBUSL
ExVrefL
AMUXBUSR
1.2V
1.024V
*
*
Connection
GPIO
P5[7]
GPIO
P5[6]
GPIO
P5[5]
GPIO
P5[4]
SIO
P12[7]
SIO
P12[6]
GPIO
* P1[7]
GPIO
* P1[6]
qtz_ref
Vssa
Vddd
USB IO
VIDAC
0.256V
vpwra,
vpwra/2
Vssd
Vusb
v2
i2
0.8V
Vccd
Vssio
ABUSR0
ABUSR1
ABUSR2
ABUSR3
ABUSL0
ABUSL1
ABUSL2
ABUSL3
Switch Group
Mux Group
1.024V
*
*
Lower left
Quadrant
Vssa
*
*
GPIO
P6[0]
GPIO
P6[1]
GPIO
P6[2]
GPIO
P6[3]
GPIO
P15[4]
GPIO
P15[5]
GPIO
P2[0]
GPIO
P2[1]
GPIO
P2[2]
GPIO
P2[3] *
GPIO
P2[4] *
1.2V
sc1
Vin
Vref
out
SC/CT
Vssio
1.024V
out
ref
in
AGR[4]
AMUXBUSR
refbufr
AGR[7]
AGR[6]
AGR[5]
CAPSENSE
out
ref
in refbufl
1.024V
1.2V
Vssd
Vio2
comp1
COMPARATOR
+
-
0.256V
Vccd
Vddd
in1
out1
+ comp0
1.024V
GPIO
P4[2]
GPIO
P4[3]
GPIO
P4[4]
GPIO
P4[5]
GPIO
P4[6]
GPIO
P4[7]
LPF
in0
out0
1.024V
i0
*
*
01 2 3 4 56 7 0123
*
*
AGL[6]
AGL[7]
44
*
*
*
AGL[5]
*
*
opamp2
*
AGL[7]
AGL[4]
*
AGR[6]
AGR[7]
ExVrefL2
opamp0
Upper Right
Quadrant
AGR[4]
AGR[5]
AGL[4]
AGL[5]
AGL[6]
ExVrefL
ExVrefL1
*
Vio3
GPIO
P3[6]
GPIO
P3[7]
SIO
P12[0]
SIO
P12[1]
GPIO
P15[2]
GPIO
P15[3]
AMUXBUSL
Vssio
Vssd
Vcca
Vsab
Vssa
Vdda
Vdab
Vio0
AMUXBUSR
AMUXBUSL
*
*
GPIO
P0[4]
GPIO
P0[5]
GPIO
P0[6]
GPIO
P0[7]
SIO
P12[2]
SIO
P12[3]
GPIO
P4[0]
GPIO
P4[1]
GPIO
P0[0]
GPIO
P0[1]
GPIO
P0[2]
GPIO
P0[3]
Upper Left
Quadrant
Lower right
Quadrant
Notes:
* Denotes pins on all packages
LCD signals are not shown.
Page 50 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Analog local buses (abus) are routing resources located within
the analog subsystem and are used to route signals between
different analog blocks. There are eight abus routes in CY8C34,
four in the left half (abusl [0:3]) and four in the right half (abusr
[0:3]) as shown in Figure 8-2. Using the abus saves the analog
globals and analog mux buses from being used for interconnecting the analog blocks.
control register or an assertion of the Start Of Conversion (SOC)
signal. When the conversion is complete, a status bit is set and
the output signal End Of Conversion (EOC) asserts high and
remains high until the value is read by either the DMA controller
or the CPU.
Multiplexers and switches exist on the various buses to direct
signals into and out of the analog blocks. A multiplexer can have
only one connection on at a time, whereas a switch can have
multiple connections on simultaneously. In Figure 8-2, multiplexers are indicated by grayed ovals and switches are indicated
by transparent ovals.
In Single Sample mode, the ADC performs one sample
conversion on a trigger. In this mode, the ADC stays in standby
state waiting for the SOC signal to be asserted. When SOC is
signaled the ADC performs one sample conversion and captures
the result. To detect the end of conversion, the system may poll
a control register for status or configure the external EOC signal
to generate an interrupt or invoke a DMA request. When the
transfer is done the ADC reenters the standby state where it
stays until another SOC event.
8.2 Delta-Sigma ADC
The CY8C34 device contains one Delta Sigma ADC. This ADC
offers differential input, high resolution and excellent linearity,
making it a good ADC choice for both audio signal processing
and measurement applications. The converter's nominal
operation is 12 bits at 192 ksps.
8.2.1 Functional Description
The ADC connects and configures three basic components,
input buffer, delta-sigma modulator, and decimator. The basic
block diagram is shown in Table 8-3. The input buffer is
connected to the internal and external buses input muxes. The
signal from the input muxes is delivered to the delta-sigma
modulator either directly or through the input buffer. The
delta-sigma modulator performs the actual analog to digital
conversion. The modulator over-samples the input and
generates a serial data stream output. This high speed data
stream is not useful for most applications without some type of
post processing, and so is passed to the decimator through the
Analog Interface block. The decimator converts the high speed
serial data stream into parallel ADC results. Resolution and
sample rate are controlled by the Decimator. Data is pipelined in
the decimator; the output is a function of the last four samples.
When the input multiplexer is switched, the output data is not
valid until after the fourth sample after the switch.
Figure 8-3. Delta-Sigma ADC Block Diagram
Input
Buffer
Negative
Input Mux
Delta
Sigma
Modulator
Decimator
12 Bit
Resul
EOC
SOC
8.2.2 Operational Modes
The ADC can be configured by the user to operate in one of four
modes: Single Sample, Fast Filter, Continuous or Fast Average.
All four modes are started by either a write to the start bit in a
Document Number: 001-53304 Rev. *B
8.2.2.2 Continuous
In continuous mode, the channel resets and then runs continuously until stopped. This mode is used when the input signal is
not switched between sources and multiple samples are
required.
8.2.2.3 Fast Filter
The Fast Filter mode continuously captures signals back-to-back
and the ADC channel resets between each sample. Upon
completion of conversion of a sample, the next sample is begun
immediately. The results can be transferred either using polling,
interrupts, or a DMA request. This mode is best used when the
input is switched between multiple sources, requiring a filter
reset between each sample.
8.2.2.4 Fast FIR (Average)
This mode is similar to Fast Filter mode, but does not reset the
modulator between intermediate conversions. It is used when
decimation ratios greater than 128 are required. This mode uses
post processor sinc1 filter to perform additional decimation to
obtain resolutions greater than 16.
More information on output formats is provided in the Technical
Reference Manual.
8.2.3 Start of Conversion Input
Positive
Input Mux
(Analog Routing)
8.2.2.1 Single Sample
The Start of Conversion (SOC) signal is used to start an ADC
conversion. A digital clock or UDB output can be used to drive
this input. In applications where the sampling period must be
longer than the conversion time this signal can be used. Also in
systems where the ADC needs to be synchronized to other
hardware, the SOC input is used. This signal is optional and does
not need to be connected if ADC is running in a continuous
mode.
8.2.4 End of Conversion Output
The End of Conversion (EOC) signal goes high at the end of
each ADC conversion. This signal may be used to trigger either
an interrupt or DMA request.
Page 51 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
„ The positive input of the comparators may be optionally passed
8.3 Comparators
through a low pass filter. Two filters are provided
The CY8C34 family of devices contains four comparators in a
device. Comparators have these features:
„ Comparator inputs can be connections to GPIO, DAC outputs
and SC block outputs
„ Input offset factory trimmed to less than 5 mV
8.3.1 Input and Output Interface
„ Rail-to-rail common mode input range (Vssa to Vdda)
The positive and negative inputs to the comparators come from
the analog global buses, the analog mux line, the analog local
bus and precision reference through multiplexers. The output
from each comparator could be routed to any of the two input
LUTs. The output of that LUT is routed to the UDB Digital System
Interface.
„ Speed and power can be traded off by using one of three
modes: fast, slow, or ultra low power
„ Comparator outputs can be routed to look up tables to perform
simple logic functions and then can also be routed to digital
blocks
Figure 8-4. Analog Comparator
From
Analog
Routing
From
Analog
Routing
ANAIF
+
comp0
_
+
comp1
_
+
comp3
_
+
_
From
Analog
Routing
From
Analog
Routing
comp2
4
4
LUT0
4
4
4
LUT1
4
LUT2
4
4
LUT3
UDBs
8.3.2 LUT
The CY8C34 family of devices contains four LUTs. The LUT is a
two input, one output lookup table that is driven by any one or
two of the comparators in the chip. The output of any LUT is
routed to the digital system interface of the UDB array. From the
digital system interface of the UDB array, these signals can be
Document Number: 001-53304 Rev. *B
connected to UDBs, DMA controller, I/O, or the interrupt
controller.
The LUT control word written to a register sets the logic function
on the output. The available LUT functions and the associated
control word is shown in Table 8-1.
Page 52 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 8-1. LUT Function vs. Program Word and Inputs
Control Word
Output (A and B are LUT inputs)
0000b
FALSE (‘0’)
0001b
0010b
0011b
0100b
0101b
0110b
0111b
1000b
1001b
1010b
1011b
1100b
1101b
1110b
1111b
Figure 8-6. Opamp Configurations
a) Voltage Follower
A AND B
A AND (NOT B)
A
(NOT A) AND B
B
A XOR B
A OR B
A NOR B
A XNOR B
NOT B
Opamp
Vout to Pin
Vin
b) External Uncommitted
Opamp
Opamp
Vout to GPIO
A OR (NOT B)
NOT A
(NOT A) OR B
A NAND B
TRUE (‘1’)
8.4 Opamps
The CY8C34 family of devices contains two general purpose
opamps in a device.
Vp to GPIO
Vn to GPIO
c) Internal Uncommitted
Opamp
Vn
To Internal Signals
Figure 8-5. Opamp
Opamp
Vout to Pin
Vp
GPIO Pin
GPIO
Analog
Global Bus
Analog
Global Bus
VREF
Analog
Internal Bus
Opamp
GPIO
=
Analog Switch
GPIO
The opamp has three speed modes, slow, medium, and fast. The
slow mode consumes the least amount of quiescent power and
the fast mode consumes the most power. The inputs are able to
swing rail-to-rail. The output swing is capable of rail-to-rail
operation at low current output, within 50 mV of the rails. When
driving high current loads (about 25 mA) the output voltage may
only get within 500 mV of the rails.
8.5 Programmable SC/CT Blocks
The opamp is uncommitted and can be configured as a gain
stage or voltage follower, or output buffer on external or internal
signals.
See Figure 8-6. In any configuration, the input and output signals
can all be connected to the internal global signals and monitored
with an ADC, or comparator. The configurations are implemented with switches between the signals and GPIO pins.
The CY8C34 family of devices contains two switched
capacitor/continuous time (SC/CT) blocks in a device. Each
switched capacitor/continuous time block is built around a single
rail-to-rail high bandwidth opamp.
Switched capacitor is a circuit design technique that uses capacitors plus switches instead of resistors to create analog functions.
These circuits work by moving charge between capacitors by
opening and closing different switches. Nonoverlapping in phase
clock signals control the switches, so that not all switches are ON
simultaneously.
The PSoC Creator tool offers a user friendly interface, which
allows you to easily program the SC/CT blocks. Switch control
and clock phase control configuration is done by PSoC Creator
so users only need to determine the application use parameters
such as gain, amplifier polarity, vref connection, and so on.
Document Number: 001-53304 Rev. *B
Page 53 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
The same opamps and block interfaces are also connectable to
an array of resistors which allows the construction of a variety of
continuous time functions.
The opamp and resistor array is programmable to perform
various analog functions including
Figure 8-7. PGA Resistor Settings
Vin
0
Vref
1
R1
R2
20k to 980k
20k or 40k
„ Naked Operational Amplifier - Continuous Mode
„ Unity-Gain Buffer - Continuous Mode
S
„ Programmable Gain Amplifier (PGA) - Continuous Mode
Vref
0
„ Transimpedance Amplifier (TIA) - Continuous Mode
Vin
1
„ Up/Down Mixer - Continuous Mode
„ Sample and Hold Mixer (NRZ S/H) - Switched Cap Mode
„ First Order Analog to Digital Modulator - Switched Cap Mode
8.5.1 Naked Opamp
The Naked Opamp presents both inputs and the output for
connection to internal or external signals. The opamp has a unity
gain bandwidth greater than 6.0 MHz and output drive current up
to 650 µA. This is sufficient for buffering internal signals (such as
DAC outputs) and driving external loads greater than 7.5 kohms.
8.5.2 Unity Gain
The Unity Gain buffer is a Naked Opamp with the output directly
connected to the inverting input for a gain of 1.00. It has a -3 dB
bandwidth greater than 6.0 MHz.
8.5.3 PGA
The PGA amplifies an external or internal signal. The PGA can
be configured to operate in inverting mode or noninverting mode.
The PGA function may be configured for both positive and
negative gains as high as 50 and 49 respectively. The gain is
adjusted by changing the values of R1 and R2 as illustrated in
Figure 8-7. The schematic in Figure 8-7 shows the configuration
and possible resistor settings for the PGA. The gain is switched
from inverting and non inverting by changing the shared select
value of the both the input muxes. The bandwidth for each gain
case is listed in Table 8-2.
The PGA is used in applications where the input signal may not
be large enough to achieve the desired resolution in the ADC, or
dynamic range of another SC/CT block such as a mixer. The gain
is adjustable at runtime, including changing the gain of the PGA
prior to each ADC sample.
8.5.4 TIA
The Transimpedance Amplifier (TIA) converts an internal or
external current to an output voltage. The TIA uses an internal
feedback resistor in a continuous time configuration to convert
input current to output voltage. For an input current Iin, the output
voltage is Iin x Rfb +Vref, where Vref is the value placed on the
non inverting input. The feedback resistor Rfb is programmable
between 20 KΩ and 1 MΩ through a configuration register.
Table 8-3 shows the possible values of Rfb and associated
configuration settings.
Table 8-3. Feedback Resistor Settings
Configuration Word
Nominal Rfb (KΩ)
000b
20
001b
30
010b
40
Table 8-2. Bandwidth
Gain
Bandwidth
1
6.0 MHz
24
340 kHz
48
220 kHz
50
215 kHz
011b
60
100b
120
101b
250
110b
500
111b
1000
Figure 8-8. Continuous Time TIA Schematic
R fb
I in
V ref
Document Number: 001-53304 Rev. *B
V out
Page 54 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
The TIA configuration is used for applications where an external
sensor's output is current as a function of some type of stimulus
such as temperature, light, magnetic flux etc. In a common application, the voltage DAC output can be connected to the VREF
TIA input to allow calibration of the external sensor bias current
by adjusting the voltage DAC output voltage.
8.6 LCD Direct Drive
The PSoC Liquid Crystal Display (LCD) driver system is a highly
configurable peripheral designed to allow PSoC to directly drive
a broad range of LCD glass. All voltages are generated on chip,
eliminating the need for external components. With a high
multiplex ratio of up to 1/16, the CY8C34 family LCD driver
system can drive a maximum of 736 segments. The PSoC LCD
driver module was also designed with the conservative power
budget of portable devices in mind, enabling different LCD drive
modes and power down modes to conserve power.
PSoC Creator provides an LCD segment drive component. The
component wizard provides easy and flexible configuration of
LCD resources. You can specify pins for segments and
commons along with other options. The software configures the
device to meet the required specifications. This is possible
because of the programmability inherent to PSoC devices.
Key features of the PSoC LCD segment system are:
„ LCD panel direct driving
„ Type A (standard) and Type B (low power) waveform support
„ Wide operating voltage range support (2V to 5V) for LCD
panels
„ Static, 1/2, 1/3, 1/4, 1/5 bias voltage levels
„ Internal bias voltage generation through internal resistor ladder
„ Up to 62 total common and segment outputs
„ Up to 1/16 multiplex for a maximum of 16 backplane/common
outputs
„ Up to 62 front plane/segment outputs for direct drive
„ Drives up to 736 total segments (16 backplane x 46 front plane)
„ Up to 128 levels of software controlled contrast
„ Ability to move display data from memory buffer to LCD driver
through DMA (without CPU intervention)
„ Adjustable LCD refresh rate from 10 Hz to 150 Hz
„ Ability to invert LCD display for negative image
„ Three LCD driver drive modes, allowing power optimization
Document Number: 001-53304 Rev. *B
Figure 8-9. LCD System
LCD
DAC
Global
Clock
UDB
LCD Driver
Block
DMA
PIN
Display
RAM
PHUB
8.6.1 LCD Segment Pin Driver
Each GPIO pin contains an LCD driver circuit. The LCD driver
buffers the appropriate output of the LCD DAC to directly drive
the glass of the LCD. A register setting determines whether the
pin is a common or segment. The pin’s LCD driver then selects
one of the six bias voltages to drive the I/O pin, as appropriate
for the display data.
8.6.2 Display Data Flow
The LCD segment driver system reads display data and
generates the proper output voltages to the LCD glass to
produce the desired image. Display data resides in a memory
buffer in the system SRAM. Each time you need to change the
common and segment driver voltages, the next set of pixel data
moves from the memory buffer into the Port Data Registers via
DMA.
8.6.3 UDB and LCD Segment Control
A UDB is configured to generate the global LCD control signals
and clocking. This set of signals is routed to each LCD pin driver
through a set of dedicated LCD global routing channels. In
addition to generating the global LCD control signals, the UDB
also produces a DMA request to initiate the transfer of the next
frame of LCD data.
8.6.4 LCD DAC
The LCD DAC generates the contrast control and bias voltage
for the LCD system. The LCD DAC produces up to five LCD drive
voltages plus ground, based on the selected bias ratio. The bias
voltages are driven out to GPIO pins on a dedicated LCD bias
bus, as required.
Page 55 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
8.7 CapSense
8.9 DAC
The CapSense system provides a versatile and efficient means
for measuring capacitance in applications such as touch sense
buttons, sliders, proximity detection, etc. The CapSense system
uses a configuration of system resources, including a few
hardware functions primarily targeted for CapSense, to realize
various sensing algorithms. Specific resource usage is detailed
in the CapSense component in PSoC Creator.
The CY8C34 parts contain two Digital to Analog Convertors
(DACs). Each DAC is 8-bit and can be configured for either
voltage or current output. The DACs support CapSense, power
supply regulation, and waveform generation. Each DAC has the
following features:
A capacitive sensing method using a Delta-Sigma Modulator
(CSD) is used. It provides capacitance sensing using a switched
capacitor technique with a delta-sigma modulator to convert the
sensing current to a digital code.
„ Programmable step size (range selection)
8.8 Temp Sensor
„ 8 Msps conversion rate for current output
Die temperature is used to establish programming parameters
for writing Flash. Die temperature is measured using a dedicated
sensor based on a forward biased transistor. The temperature
sensor has its own auxiliary ADC.
„ 1 Msps conversion rate for voltage output
„ Adjustable voltage or current output in 255 steps
„ Eight bits of calibration to correct ± 25% of gain error
„ Source and sink option for current output
„ Monotonic in nature
Figure 8-10. DAC Block Diagram
I source Range
1x , 8x , 64x
Reference
Source
Scaler
Vout
R
Iout
3R
I sink Range
1x , 8x , 64x
8.9.1 Current DAC
8.10 Up/Down Mixer
The current DAC (IDAC) can be configured for the ranges 0 to
32 µA, 0 to 256 µA, and 0 to 2.048 mA. The IDAC can be
configured to source or sink current.
In continuous time mode, the SC/CT block components are used
to build an up or down mixer. Any mixing application contains an
input signal frequency and a local oscillator frequency. The
polarity of the clock, Fclk, switches the amplifier between
inverting or noninverting gain. The output is the product of the
input and the switching function from the local oscillator, with
frequency components at the local oscillator plus and minus the
signal frequency (Fclk + Fin and Fclk - Fin) and reduced-level
frequency components at odd integer multiples of the local oscillator frequency. The local oscillator frequency is provided by the
selected clock source for the mixer.
8.9.2 Voltage DAC
For the voltage DAC (VDAC), the current DAC output is routed
through resistors. The two ranges available for the VDAC are 0
to 1.024V and 0 to 4.096V. In voltage mode any load connected
to the output of a DAC should be purely capacitive (the output of
the VDAC is not buffered).
Continuous time up and down mixing works for applications with
input signals and local oscillator frequencies up to 1 MHz.
Document Number: 001-53304 Rev. *B
Page 56 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
is the output of the comparator and not the integrator in the
modulator case. The signal is downshifted and buffered and then
processed by a decimator to make a delta-sigma converter or a
counter to make an incremental converter. The accuracy of the
sampled data from the first-order modulator is determined from
several factors.
Figure 8-11. Mixer Configuration
C2 = 1.7 pF
C1 = 850 fF
The main application for this modulator is for a low frequency
ADC with high accuracy. Applications include strain gauges,
thermocouples, precision voltage, and current measurement.
Rmix 0 20k or 40k
sc_clk
Rmix 0 20k or 40k
Vin
Vout
0
Vref
1
sc_clk
8.11 Sample and Hold
The main application for a sample and hold, is to hold a value
stable while an ADC is performing a conversion. Some applications require multiple signals to be sampled simultaneously, such
as for power calculations (V and I).
Figure 8-12. Sample and Hold Topology
(Φ1 and Φ2 are opposite phases of a clock)
Φ1
Vi
C1
C2
Φ1
n
Φ1
Φ2
V ref
V out
Φ2
Φ2
Φ1
Φ2
Φ1
Φ1
V ref
Φ2
C3
C4
Φ2
Vref
8.11.1 Down Mixer
The SC/CT block can be used as a mixer to down convert an
input signal. This circuit is a high bandwidth passive sample
network that can sample input signals up to 14 MHz. This
sampled value is then held using the opamp with a maximum
clock rate of 4 MHz. The output frequency is at the difference
between the input frequency and the highest integer multiple of
the Local Oscillator that is less than the input.
9. Programming, Debug Interfaces,
Resources
PSoC devices include extensive support for programming,
testing, debugging, and tracing both hardware and firmware.
Three interfaces are available: JTAG, SWD, and SWV. JTAG and
SWD support all programming and debug features of the device.
JTAG also supports standard JTAG scan chains for board level
test and chaining multiple JTAG devices to a single JTAG
connection.
Complete Debug on Chip (DoC) functionality enables full device
debugging in the final system using the standard production
device. It does not require special interfaces, debugging pods,
simulators, or emulators. Only the standard programming
connections are required to fully support debug.
The PSoC Creator IDE software provides fully integrated
programming and debug support for PSoC devices. The low cost
MiniProg3 programmer and debugger is designed to provide full
programming and debug support of PSoC devices in conjunction
with the PSoC Creator IDE. PSoC JTAG, SWD, and SWV interfaces are fully compatible with industry standard third party tools.
All DOC circuits are disabled by default and can only be enabled
in firmware. If not enabled, the only way to reenable them is to
erase the entire device, clear Flash protection, and reprogram
the device with new firmware that enables DOC. Disabling DOC
features, robust Flash protection, and hiding custom analog and
digital functionality inside the PSoC device provide a level of
security not possible with multichip application solutions.
Additionally, all device interfaces can be permanently disabled
(Device Security) for applications concerned about phishing
attacks due to a maliciously reprogrammed device. Permanently
disabling interfaces is not recommended in most applications
because the designer then cannot access the device. Because
all programming, debug, and test interfaces are disabled when
Device Security is enabled, PSoCs with Device Security enabled
may not be returned for failure analysis.
Table 9-1. Debug Configurations
Debug and Trace Configuration
All debug and trace disabled
GPIO Pins Used
0
8.11.2 First Order Modulator - SC Mode
JTAG
4 or 5
A first order modulator is constructed by placing the SC/CT block
in an integrator mode and using a comparator to provide a 1-bit
feedback to the input. Depending on this bit, a reference voltage
is either subtracted or added to the input signal. The block output
SWD
2
SWV
1
SWD + SWV
3
Document Number: 001-53304 Rev. *B
Page 57 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
9.1 JTAG Interface
9.4 Trace Features
The IEEE 1149.1 compliant JTAG interface exists on four or five
pins (the nTRST pin is optional). The JTAG clock frequency can
be up to 8 MHz. By default, the JTAG pins are enabled on new
devices but the JTAG interface can be disabled, allowing these
pins to be used as General Purpose I/O (GPIO) instead. The
JTAG interface is used for programming the Flash memory,
debugging, I/O scan chains, and JTAG device chaining.
The CY8C34 supports the following trace features when using
JTAG or SWD:
9.2 Serial Wire Debug Interface
The SWD interface is the preferred alternative to the JTAG
interface. It requires only two pins instead of the four or five
needed by JTAG. SWD provides all of the programming and
debugging features of JTAG at the same speed. SWD does not
provide access to scan chains or device chaining.
SWD uses two pins, either two of the JTAG pins (TMS and TCK)
or the USBIO D+ and D- pins. The USBIO pins are useful for in
system programming of USB solutions that would otherwise
require a separate programming connector. One pin is used for
the data clock and the other is used for data input and output.
SWD can be enabled on only one of the pin pairs at a time. This
only happens if, within 8 µs (key window) after reset, that pin pair
(JTAG or USB) receives a predetermined sequence of 1s and 0s.
SWD is used for debugging or for programming the Flash
memory.
The SWD interface can be enabled from the JTAG interface or
disabled, allowing its pins to be used as GPIO. Unlike JTAG, the
SWD interface can always be reacquired on any device during
the key window. It can then be used to reenable the JTAG
interface, if desired. When using SWD or JTAG pins as standard
GPIO, make sure that the GPIO functionality and PCB circuits do
not interfere with SWD or JTAG use.
„ Trace the 8051 program counter (PC), accumulator register
(ACC), and one SFR / 8051 core RAM register
„ Trace depth up to 1000 instructions if all registers are traced,
or 2000 instructions if only the PC is traced (on devices that
include trace memory)
„ Program address trigger to start tracing
„ Trace windowing, that is, only trace when the PC is within a
given range
„ Two modes for handling trace buffer full: continuous (overwriting
the oldest trace data) or break when trace buffer is full
9.5 Single Wire Viewer Interface
The SWV interface is closely associated with SWD but can also
be used independently. SWV data is output on the JTAG
interface’s TDO pin. If using SWV, the designer must configure
the device for SWD, not JTAG. SWV is not supported with the
JTAG interface.
SWV is ideal for application debug where it is helpful for the
firmware to output data similar to 'printf' debugging on PCs. The
SWV is ideal for data monitoring, because it requires only a
single pin and can output data in standard UART format or
Manchester encoded format. For example, it can be used to tune
a PID control loop in which the output and graphing of the three
error terms greatly simplifies coefficient tuning.
The following features are supported in SWV:
„ 32 virtual channels, each 32 bits long
9.3 Debug Features
„ Simple, efficient packing and serializing protocol
Using the JTAG or SWD interface, the CY8C34 supports the
following debug features:
„ Supports standard UART format (N81)
„ Halt and single-step the CPU
„ View and change CPU and peripheral registers, and RAM
addresses
„ Eight program address breakpoints
„ One memory access breakpoint—break on reading or writing
any memory address and data value
„ Break on a sequence of breakpoints (non recursive)
„ Debugging at the full speed of the CPU
„ Debug operations are possible while the device is reset, or in
low power modes
„ Compatible with PSoC Creator and MiniProg3 programmer and
debugger
„ Standard JTAG programming and debugging interfaces make
CY8C34 compatible with other popular third-party tools (for
example, ARM / Keil)
Document Number: 001-53304 Rev. *B
9.6 Programming Features
The JTAG and SWD interfaces provide full programming
support. The entire device can be erased, programmed, and
verified. Designers can increase Flash protection levels to
protect firmware IP. Flash protection can only be reset after a full
device erase. Individual Flash blocks can be erased,
programmed, and verified, if block security settings permit.
9.7 Device Security
PSoC 3 offers an advanced security feature called device
security, which permanently disables all test, programming, and
debug ports, protecting your application from external access.
The device security is activated by programming a 32-bit key
(0x50536F43) to a Write Once Latch (WOL).
The Write Once Latch is a type of nonvolatile latch (NVL). The
cell itself is an NVL with additional logic wrapped around it. Each
WOL device contains four bytes (32 bits) of data. The wrapper
outputs a ‘1’ if a super-majority (28 of 32) of its bits match a
pre-determined pattern (0x50536F43); it outputs a ‘0’ if this
majority is not reached. When the output is 1, the Write Once NV
latch locks the part out of Debug and Test modes; it also permanently gates off the ability to erase or alter the contents of the
latch. Matching all bits is intentionally not required, so that single
(or few) bit failures do not deassert the WOL output. The state of
Page 58 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
the NVL bits after wafer processing is truly random with no
tendency toward 1 or 0.
10. Development Support
The WOL only locks the part after the correct 32-bit key
(0x50536F43) is loaded into the NVL's volatile memory,
programmed into the NVL's nonvolatile cells, and the part is
reset. The output of the WOL is only sampled on reset and used
to disable the access. This precaution prevents anyone from
reading, erasing, or altering the contents of the internal memory.
The CY8C34 family has a rich set of documentation, development tools, and online resources to assist you during your
development process. Visit psoc.cypress.com/getting-started to
find out more.
The user can write the key into the WOL to lock out external
access only if no Flash protection is set (see “Flash Security” on
page 18). However, after setting the values in the WOL, a user
still has access to the part until it is reset. Therefore, a user can
write the key into the WOL, program the Flash protection data,
and then reset the part to lock it.
A suite of documentation, supports the CY8C34 family to ensure
that you can find answers to your questions quickly. This section
contains a list of some of the key documents.
If the device is protected with a WOL setting, Cypress cannot
perform failure analysis and, therefore, cannot accept RMAs
from customers. The WOL can be read out via Serial Wire Debug
(SWD) port to electrically identify protected parts. The user can
write the key in WOL to lock out external access only if no Flash
protection is set. For more information on how to take full
advantage of the security features in PSoC see the PSoC 3
TRM.
Disclaimer
Note the following details of the Flash code protection features
on Cypress devices.
Cypress products meet the specifications contained in their
particular Cypress data sheets. Cypress believes that its family
of products is one of the most secure families of its kind on the
market today, regardless of how they are used. There may be
methods, unknown to Cypress, that can breach the code
protection features. Any of these methods, to our knowledge,
would be dishonest and possibly illegal. Neither Cypress nor any
other semiconductor manufacturer can guarantee the security of
their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”
Cypress is willing to work with the customer who is concerned
about the integrity of their code. Code protection is constantly
evolving. We at Cypress are committed to continuously
improving the code protection features of our products.
Document Number: 001-53304 Rev. *B
10.1 Documentation
Software User Guide: A step-by-step guide for using PSoC
Creator. The software user guide shows you how the PSoC
Creator build process works in detail, how to use source control
with PSoC Creator, and much more.
Component Data Sheets: The flexibility of PSoC allows the
creation of new peripherals (components) long after the device
has gone into production. Component data sheets provide all of
the information needed to select and use a particular component,
including a functional description, API documentation, example
code, and AC/DC specifications.
Application Notes: PSoC application notes discuss a particular
application of PSoC in depth; examples include brushless DC
motor control and on-chip filtering. Application notes often
include example projects in addition to the application note
document.
Technical Reference Manual: The Technical Reference Manual
(TRM) contains all the technical detail you need to use a PSoC
device, including a complete description of all PSoC registers.
10.2 Online
In addition to print documentation, the Cypress PSoC forums
connect you with fellow PSoC users and experts in PSoC from
around the world, 24 hours a day, 7 days a week.
10.3 Tools
With industry standard cores, programming, and debugging
interfaces, the CY8C34 family is part of a development tool
ecosystem. Visit us at www.cypress.com/go/psoccreator for the
latest information on the revolutionary, easy to use PSoC Creator
IDE, supported third party compilers, programmers, debuggers,
and development kits.
Page 59 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11. Electrical Specifications
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted. The unique flexibility of the PSoC UDBs and analog blocks enable many functions to be implemented in PSoC Creator
components, see the component data sheets for full AC/DC specifications of individual functions. See the “Example Peripherals”
section on page 35 for further explanation of PSoC Creator components.
11.1 Absolute Maximum Ratings
Table 11-1. Absolute Maximum Ratings DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Recommended storage temperature is 0°C - 50°C. Exposure to
storage temperatures above 85°C
for extended periods may affect
device reliability
-55
25
125
°C
Analog supply voltage relative to
Vssa
-0.5
-
6
V
Digital supply voltage relative to
Vssd
-0.5
-
6
V
Tstorag
Storage temperature
Vdda
Vddd
Vddio
I/O supply voltage relative to Vssd
-0.5
-
6
V
Vcca
Direct analog core voltage input
-0.5
-
1.95
V
Vccd
Direct digital core voltage input
Vssa
Analog ground voltage
Vgpio[6]
DC input voltage on GPIO
Vsio
DC input voltage on SIO
Vind
Voltage at boost converter input
Vbat
Boost converter supply
Ivddio
Current per Vddio supply pin
-0.5
-
1.95
V
Vssd -0.5
-
Vssd +
0.5
V
Includes signals sourced by Vdda
and routed internal to the pin
Vssd -0.5
-
Vddio +
0.5
V
Output disabled
Vssd -0.5
-
7
V
Output enabled
Vssd -0.5
-
6
V
0.5
-
5.5
V
Vssd -0.5
-
5.5
V
-
-
100
mA
LU
Latch up current
-200
-
200
mA
ESDHBM
Electro-static discharge voltage
Human Body Model
2000
-
-
V
ESDCDM
Electro-static discharge voltage
Charge Device Model
500
-
-
V
Note Usage above the absolute maximum conditions listed in Table 11-1 may cause permanent damage to the device. Exposure to
maximum conditions for extended periods of time may affect device reliability. When used below maximum conditions but above
normal operating conditions the device may not operate to specification.
Note
6. The Vddio supply voltage must be greater than the maximum analog voltage on the associated GPIO pins. Maximum analog voltage on GPIO pin ≤ Vddio ≤ Vdda.
Document Number: 001-53304 Rev. *B
Page 60 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.2 Device Level Specifications
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.2.1 Device Level Specifications
Table 11-2. DC Specifications
Parameter
Description
Conditions
Min
Vdda
Analog supply voltage and input to Analog core regulator enabled
analog core regulator
1.8
Vdda
Analog supply voltage, analog
regulator bypassed
Analog core regulator disabled
1.71
Vddd
Digital supply voltage relative to
Vssd
Digital core regulator enabled
1.8
Vddd
Digital supply voltage, digital
regulator bypassed
Digital core regulator disabled
1.71
Vddio[6]
I/O supply voltage relative to Vssio
Vcca
Direct analog core voltage input
(Analog regulator bypass)
Analog core regulator disabled
1.71
Vccd
Direct digital core voltage input
(Digital regulator bypass)
Digital core regulator disabled
1.71
Vbat
Voltage supplied to boost converter
Typ
Max
Units
5.5
V
1.89
V
Vdda
V
1.89
V
Vdda
V
1.8
1.89
V
1.8
1.89
V
5.5
V
1.8
1.8
1.71
0.5
Active Mode, VDD = 1.71V - 5.5V
Idd[7]
Execute from Flash, CPU at 1 MHz T= -40°C
T= 25°C
mA
0.57
T= 85°C
mA
Execute from Flash, CPU at 6 MHz T= -40°C
T= 25°C
mA
1.2
T= 85°C
mA
2.1
T= 85°C
mA
3.7
T= 85°C
mA
6.7
T= 85°C
T= 85°C
Document Number: 001-53304 Rev. *B
mA
mA
Execute from Flash, CPU at 67 MHz T= -40°C
T= 25°C
mA
mA
Execute from Flash, CPU at 48 MHz T= -40°C
T= 25°C
mA
mA
Execute from Flash, CPU at 24 MHz T= -40°C
T= 25°C
mA
mA
Execute from Flash, CPU at 12 MHz T= -40°C
T= 25°C
mA
mA
9.6
mA
mA
Page 61 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-2. DC Specifications (continued)
Parameter
Description
Conditions
Min
Typ
Max
Units
[8]
Sleep Mode
VDD = VDDIO = 4.5 - 5.5V T= -40°C
CPU OFF
RTC = ON (= ECO32K ON, in low
power mode)
WDT = OFF
I2C Wake = OFF
Comparator = OFF
POR = ON
Boost = OFF
SIO pins in single ended input,
unregulated output mode
µA
T= 25°C
µA
T= 85°C
µA
VDD = VDDIO = 2.7 - 3.6V T= -40°C
T= 25°C
VDD = VDDIO = 1.71 1.95V
µA
1
µA
T= 85°C
µA
T= -40°C
µA
T= 25°C
µA
T= 85°C
µA
[8]
Hibernate Mode
VDD = VDDIO = 4.5 - 5.5V T= -40°C
Hibernate mode current
All regulators and oscillators off.
SRAM retention
GPIO interrupts are active
Boost = OFF
SIO pins in single ended input,
unregulated output mode
nA
T= 25°C
nA
T= 85°C
nA
VDD = VDDIO = 2.7 - 3.6V T= -40°C
T= 25°C
VDD = VDDIO = 1.71 1.95V
nA
200
nA
T= 85°C
nA
T= -40°C
nA
T= 25°C
nA
T= 85°C
nA
Notes
7. The current consumption of additional peripherals that are implemented only in programmed logic blocks can be found in their respective data sheets, available in
PSoC Creator, the integrated design environment. To compute total current, find CPU current at frequency of interest and add peripheral currents for your particular
system from the device data sheet and component data sheets.
8. If Vccd and Vcca are externally regulated, the voltage difference between Vccd and Vcca must be less than 50 mV.
Document Number: 001-53304 Rev. *B
Page 62 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-3. AC Specifications[9]
Parameter
Description
Conditions
Min
Typ
Max
Units
FCPU
CPU frequency
1.71V ≤ Vddd ≤ 5.5V
DC
-
48
MHz
Fbusclk
Bus frequency
1.71V ≤ Vddd ≤ 5.5V
DC
-
48
MHz
Svdd
Vdd ramp rate
1.00E-04
-
1.00E+06
V/ms
Tio_init
Time from Vddd/Vdda/Vccd/Vcca ≥
IPOR to I/O ports set to their reset
states
-
-
10
µs
Vcca/Vdda = regulated from
Vdda/Vddd, no PLL used, fast boot
Time from Vddd/Vdda/Vccd/Vcca ≥ mode
PPOR to CPU executing code at
Vcca/Vccd = regulated from
reset vector
Vdda/Vddd, no PLL used, slow
boot mode
-
-
9
µs
-
-
36
µs
Tsleep
Wakeup from sleep mode Application of external interrupt to
beginning of execution of next CPU
instruction
-
-
12
µs
Thibernate
Wakeup from hibernate mode Application of external interrupt to
beginning of execution of next CPU
instruction
-
-
100
µs
External reset pulse width
1
-
-
µs
Tstartup
Figure 11-1. Fcpu vs. Vdd
Vdd Voltage
5.5V
Valid Operating Region
3.3V
1.71V
Valid Operating Region with SMP
0.5V
0V
DC
1 MHz
10 MHz
48 MHz
CPU Frequency
Note
9. Based on device characterization (Not production tested).
Document Number: 001-53304 Rev. *B
Page 63 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.3 Power Regulators
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.3.1 Digital Core Regulator
Table 11-4. Digital Core Regulator DC Specifications
Parameter
Description
Vddd
Input voltage
Vccd
Output voltage
Regulator output capacitance
Conditions
Total capacitance on the two Vccd pins.
Each capacitor is ±10%, X5R ceramic or
better, see Power System on page 25
Min
Typ
Max
Units
1.8
-
5.5
V
-
1.80
-
V
-
1.1
-
µF
11.3.2 Analog Core Regulator
Table 11-5. Analog Core Regulator DC Specifications
Parameter
Description
Vdda
Input voltage
Vcca
Output voltage
Regulator output capacitor
Conditions
Typ
Max
1.8
-
5.5
V
-
1.80
-
V
-
1
-
µF
Min
Typ
Max
Units
0.5
-
5.5
V
Vin=1.6-5.5V, Vout=1.6-5.5V, external
diode
-
-
50
mA
Vin=1.6-3.6V, Vout=1.6-3.6V, internal diode
-
-
75
mA
Vin=0.8-1.6V, Vout=1.6-3.6V, internal diode
-
-
30
mA
Vin=0.8-1.6V, Vout=3.6-5.5V, external
diode
-
-
20
mA
±10%, X5R ceramic or better
Min
Units
11.3.3 Inductive Boost Regulator
Table 11-6. Inductive Boost Regulator DC Specifications
Parameter
Vbat
Iboost
Description
Input voltage
Conditions
Includes startup
Load current[10, 11]
Vin=0.5-0.8V, Vout=1.6-3.6V, internal diode
Lboost
Boost inductor
[9]
-
-
15
mA
10 µH spec'd
4.7
10
47
µH
Cboost
Filter capacitor
22 µF || 0.1 µF spec'd
10
22
47
µF
If
External Schottky diode average
forward current
External Schottky diode is required for
Vboost > 3.6V
1
-
-
A
Vr
External Schottky diode peak
reverse voltage
External Schottky diode is required for
Vboost > 3.6V
20
-
-
V
Ilpk
Inductor peak current
-
-
700
mA
Boost active mode
-
200
-
µA
Boost standby mode, 32 khz external
crystal oscillator, Iboost < 1 µA
-
12
-
µA
Quiescent current
Notes
10. For output voltages above 3.6V, an external diode is required.
11. Maximum output current applies for output voltages < 4x input voltage.
Document Number: 001-53304 Rev. *B
Page 64 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-6. Inductive Boost Regulator DC Specifications (continued)
Parameter
Description
Conditions
Min
Typ
Max
Units
1.8V
1.71
1.80
1.89
V
1.9V
1.81
1.90
2.00
V
2.0V
1.90
2.00
2.10
V
2.4V
2.28
2.40
2.52
V
2.7V
2.57
2.70
2.84
V
3.0V
2.85
3.00
3.15
V
3.3V
3.14
3.30
3.47
V
[9]
Boost output voltage range
Vboost
3.6V
5.0V
3.42
3.60
3.78
V
4.75
5.00
5.25
V
90
-
-
%
Conditions
Min
Typ
Max
Units
Vout = 1.8V, Fsw = 400 kHz, Iout = 10 mA
-
-
100
mV
-
0.1, 0.4,
or 2
-
MHz
20
-
80
%
External diode required
Efficiency
Vbat = 2.4 V, Vout = 2.7 V, Iout = 10 mA,
Fsw = 400 kHz
Table 11-7. Inductive Boost Regulator AC Specifications
Parameter
Description
Vripple
Ripple voltage (peak-to-peak)
Fsw
Switching frequency
Duty cycle
Document Number: 001-53304 Rev. *B
Page 65 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.4 Inputs and Outputs
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.4.1 GPIO
Table 11-8. GPIO DC Specifications
Parameter
Description
Vih
Input voltage high threshold
Vil
Input voltage low threshold
Vih
Input voltage high threshold
Conditions
Min
CMOS Input, PRT[x]CTL = 0
0.7 × Vddio
CMOS Input, PRT[x]CTL = 0
LVTTL Input, PRT[x]CTL = 1,Vddio 0.7 x Vddio
< 2.7V
Typ
Max
Units
-
0.3 × Vddio
-
V
V
V
Vih
Input voltage high threshold
Vil
Input voltage low threshold
LVTTL Input, PRT[x]CTL = 1, Vddio
≥ 2.7V
LVTTL Input, PRT[x]CTL = 1,Vddio
< 2.7V
2.0
-
-
V
-
-
0.3 x Vddio
V
Vil
Input voltage low threshold
Voh
Output voltage high
Vol
Output voltage low
LVTTL Input, PRT[x]CTL = 1, Vddio
≥ 2.7V
Ioh = 4 mA at 3.3 Vddio
Ioh = 1 mA at 1.8 Vddio
Iol = 8 mA at 3.3 Vddio
Iol = 4 mA at 1.8 Vddio
-
-
0.8
V
Vddio - 0.6
Vddio - 0.5
4
4
5.6
5.6
0.6
0.6
8
8
V
V
V
V
kΩ
kΩ
-
40
2
7
18
-
nA
pF
pF
mV
-
-
100
µA
-
240
130
-
Ω
Ω
Min
Typ
Max
Units
3.3V Vddio Cload = 25 pF
3.3V Vddio Cload = 25 pF
3.3V Vddio Cload = 25 pF
3.3V Vddio Cload = 25 pF
2
2
10
10
-
12
12
60
60
ns
ns
ns
ns
90/10% Vddio into 25 pF
-
-
33
MHz
90/10% Vddio into 25 pF
-
-
20
MHz
90/10% Vddio into 25 pF
-
-
7
MHz
90/10% Vddio into 25 pF
-
-
3.5
MHz
90/10% Vddio
-
-
66
MHz
Rpullup
Pull up resistor
Rpulldown Pull down resistor
Iil
Input leakage current (absolute value)[9] 25°C, Vddio = 3.0V
Cin
Input capacitance[9]
GPIOs without OpAmp outputs
GPIOs with OpAmp outputs
Vh
Input voltage hysteresis
(Schmitt-Trigger)[9]
Idiode
Current through protection diode to
Vddio and Vssio
Rglobal
Resistance pin to analog global bus
25°C, Vddio = 3.0V
Rmux
Resistance pin to analog mux bus
25°C, Vddio = 3.0V
Table 11-9. GPIO AC Specifications
Parameter
TriseF
TfallF
TriseS
TfallS
Fgpioout
Fgpioin
Description
Conditions
[9]
Rise time in Fast Strong Mode
Fall time in Fast Strong Mode[9]
Rise time in Slow Strong Mode[9]
Fall time in Slow Strong Mode[9]
GPIO output operating frequency
3.3V < Vddio < 5.5V, fast strong drive
mode
1.71V < Vddio < 3.3V, fast strong drive
mode
3.3V < Vddio < 5.5V, slow strong drive
mode
1.71V < Vddio < 3.3V, slow strong drive
mode
GPIO input operating frequency
1.71V < Vddio < 5.5V
Document Number: 001-53304 Rev. *B
Page 66 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.4.2 SIO
Table 11-10. SIO DC Specifications
Parameter
Vinref
Description
Conditions
Min
Typ
Max
Units
0.5
-
0.52 ×Vddio
V
Vddio > 3.7
1
-
Vddio-1
V
Vddio < 3.7
1
-
Vddio - 0.5
V
Input voltage reference (Differential input mode)
Output voltage reference (Regulated output mode)
Voutref
Input voltage high threshold
Vih
GPIO mode
CMOS input
0.7 × Vddio
-
-
V
Differential input mode
With hysteresis
Vinref+0.05
-
-
V
Input voltage low threshold
Vil
GPIO mode
CMOS input
-
-
0.3 × Vddio
V
Differential input mode
With hysteresis
-
-
Vinref-0.05
V
Output voltage high
Voh
Unregulated mode
Ioh = 4 mA, Vddio = 3.3V
Vddio - 0.4
-
-
V
Regulated mode
Ioh = 1 mA
Voutref-0.6
-
Voutref+0.2
V
Regulated mode
Ioh = 0.1 mA
Voutref-0.25
-
Voutref+0.2
V
Output voltage low
Vol
Vddio = 3.30V, Iol = 25 mA
-
-
0.8
V
Vddio = 1.80V, Iol = 4 mA
-
-
0.4
V
Rpullup
Pull up resistor
4
5.6
8
kΩ
Rpulldown
Pull down resistor
4
5.6
8
kΩ
Iil
Input leakage current (absolute
value)[9]
Vih < Vddsio
25°C, Vddsio = 3.0V, Vih = 3.0V
-
-
0.06
nA
Vih > Vddsio
25°C, Vddsio = 0V, Vih = 3.0V
-
-
10
µA
-
7
-
pF
Single ended mode (GPIO mode)
-
40
-
mV
Differential mode
-
50
-
mV
-
-
100
µA
Cin
Input Capacitance[9]
Vh
Input voltage hysteresis
(Schmitt-Trigger)[9]
Idiode
Current through protection diode
to Vssio
Table 11-11. SIO AC Specifications
Min
Typ
Max
Units
TriseF
Parameter
Rise time in Fast Strong Mode
(90/10%)[9]
Description
Cload = 25 pF, Vddio = 3.3V
1
-
12
ns
TfallF
Fall time in Fast Strong Mode
(90/10%)[9]
Cload = 25 pF, Vddio = 3.3V
1
-
12
ns
TriseS
Rise time in Slow Strong Mode
(90/10%)[9]
Cload = 25 pF, Vddio = 3.0V
10
-
75
ns
TfallS
Fall time in Slow Strong Mode
(90/10%)[9]
Cload = 25 pF, Vddio = 3.0V
10
-
60
ns
Document Number: 001-53304 Rev. *B
Conditions
Page 67 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-11. SIO AC Specifications (continued)
Parameter
Description
Conditions
Min
Typ
Max
Units
90/10% Vddio into 25 pF
-
-
33
MHz
1.71V < Vddio < 3.3V, Unregulated 90/10% Vddio into 25 pF
output (GPIO) mode, fast strong
drive mode
-
-
16
MHz
3.3V < Vddio < 5.5V, Unregulated
output (GPIO) mode, slow strong
drive mode
90/10% Vddio into 25 pF
-
-
5
MHz
1.71V < Vddio < 3.3V, Unregulated 90/10% Vddio into 25 pF
output (GPIO) mode, slow strong
drive mode
-
-
4
MHz
3.3V < Vddio < 5.5V, Regulated
Output continuously switching into
output mode, fast strong drive mode 25 pF
-
-
20
MHz
1.71V < Vddio < 3.3V, Regulated Output continuously switching into
output mode, fast strong drive mode 25 pF
-
-
10
MHz
1.71V < Vddio < 5.5V, Regulated
output mode, slow strong drive
mode
Output continuously switching into
25 pF
-
-
2.5
MHz
90/10% Vddio
-
-
66
MHz
Min
Typ
Max
Units
SIO output operating frequency
3.3V < Vddio < 5.5V, Unregulated
output (GPIO) mode, fast strong
drive mode
Fsioout
Fsioin
SIO input operating frequency
1.71V < Vddio < 5.5V
11.4.3 USBIO
Table 11-12. USBIO DC Specifications
Parameter
Description
Conditions
Rusbi
USB D+ pull up resistance
With idle bus
0.900
-
1.575
kΩ
Rusba
USB D+ pull up resistance
While receiving traffic
1.425
-
3.090
kΩ
Vohusb
Static output high
15 kΩ ±5% to Vss, internal pull up
enabled
2.8
-
3.6
V
Volusb
Static output low
15 kΩ ±5% to Vss, internal pull up
enabled
-
-
0.3
V
Vohgpio
Output voltage high, GPIO mode
Ioh = 4 mA, Vddio ≥ 3V
2.4
-
-
V
Volgpio
Output voltage low, GPIO mode
Iol = 4 mA, Vddio ≥ 3V
-
-
0.3
V
Vdi
Differential input sensitivity
|(D+)-(D-)|
-
-
0.2
V
Vcm
Differential input common mode
range
0.8
-
2.5
V
Vse
Single ended receiver threshold
0.8
-
2
V
Rps2
PS/2 pull up resistance
In PS/2 mode, with PS/2 pull up
enabled
3
-
7
kΩ
External USB series resistor
In series with each USB pin
21.78
(-1%)
22
22.22
(+1%)
Ω
Zo
USB driver output impedance
Including Rext
28
-
44
Ω
Cin
USB transceiver input capacitance
-
-
20
pF
Iil
Input leakage current (absolute
value)
-
-
2
nA
Rext
Document Number: 001-53304 Rev. *B
25°C, Vddio = 3.0V
Page 68 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-13. USBIO AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Tdrate
Full-speed data rate average bit rate
12 - 0.25%
12
12 +
0.25%
MHz
Tjr1
Receiver data jitter tolerance to next
transition
-8
-
8
ns
Tjr2
Receiver data jitter tolerance to pair
transition
-5
-
5
ns
Tdj1
Driver differential jitter to next
transition
-3.5
-
3.5
ns
Tdj2
Driver differential jitter to pair transition
-4
-
4
ns
Tfdeop
Source jitter for differential transition to
SE0 transition
-2
-
5
ns
Tfeopt
Source SE0 interval of EOP
160
-
175
ns
Tfeopr
Receiver SE0 interval of EOP
82
-
-
ns
Tfst
Width of SE0 interval during differential transition
-
-
14
ns
Fgpio_out
GPIO mode output operating
frequency
3V ≤ Vddd ≤ 5.5V
-
-
20
MHz
Vddd = 1.71V
-
-
6
MHz
Tr_gpio
Rise time, GPIO mode, 10%/90%
Vddd
Vddd > 3V, 25 pF load
1
-
12
ns
Tf_gpio
Fall time, GPIO mode, 90%/10% Vddd Vddd > 3V, 25 pF load
Vddd = 1.71V, 25 pF load
Vddd = 1.71V, 25 pF load
4
-
40
ns
1
-
12
ns
4
-
40
ns
Min
Typ
Max
Units
Table 11-14. USB Driver AC Specifications
Parameter
Description
Conditions
Tr
Transition rise time
4
-
20
ns
Tf
Transition fall time
4
-
20
ns
90%
-
111%
1.3
-
2
V
Min
Typ
Max
Units
TR
Rise/fall time matching
Vcrs
Output signal crossover voltage
11.4.4 XRES
Table 11-15. XRES DC Specifications
Parameter
Description
Conditions
Vih
Input voltage high threshold
CMOS Input, PRT[x]CTL = 0
0.7 × Vddio
-
-
V
Vil
Input voltage low threshold
CMOS Input, PRT[x]CTL = 0
-
-
0.3 × Vddio
V
Rpullup
Pull up resistor
4
5.6
8
kΩ
Cin
Input capacitance[9]
-
3
-
pF
Vh
Input voltage hysteresis
(Schmitt-Trigger)[9]
-
100
-
mV
Idiode
Current through protection diode to
Vddio and Vssio
-
-
100
µA
Min
Typ
Max
Units
1
-
-
µs
Table 11-16. XRES AC Specifications
Parameter
Treset
Description
Reset pulse width
Document Number: 001-53304 Rev. *B
Conditions
Page 69 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5 Analog Peripherals
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.5.1 Opamp
Table 11-17. Opamp DC Specifications
Parameter
Vioff
Vioff
TCVos
Ge1
Vi
Vo
Iout
Description
Input offset voltage
Input offset voltage
Input offset voltage drift with temperature
Gain error, unity gain buffer mode
Quiescent current
Input voltage range
Output voltage range
Output current
Output current
Iout
CMRR
Conditions
T = 25 °C
Rload = 1 kΩ
Output load = 1 mA
Output voltage is between Vssa
+500 mV and Vdda -500 mV, and
Vdda > 2.7V
Output voltage is between Vssa
+500 mV and Vdda -500 mV, and
Vdda > 1.7V and Vdda < 2.7V
Common mode rejection ratio[9]
Min
Vssa
Vssa + 50
25
Typ
0.5
12
900
-
Max
2
0.1
Vdda
Vdda - 50
-
Units
mV
mV
µv/°C
%
µA
mV
mV
mA
16
-
-
mA
70
-
-
dB
Min
3
Typ
-
Max
-
Units
MHz
3
-
38
-
V/µs
nv/
sqrtHz
Table 11-18. Opamp AC Specifications
Parameter
GBW
Gain BW[9]
Tslew
Description
Slew rate[9]
Input noise density[9]
Document Number: 001-53304 Rev. *B
Conditions
100 mV pk-pk, load capacitance
200 pF
Load capacitance 200 pF
Page 70 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5.2 Delta-Sigma ADC
Table 11-19. 12-Bit Delta-Sigma ADC DC Specifications
Parameter
Description
Conditions
Min
[9]
Max
Units
bits
Resolution
8
-
12
Number of channels - single ended
-
-
No. of
GPIO
-
-
No. of
GPIO/2
Yes
-
-
Number of channels - differential
Differential pair is formed using a
pair of GPIOs
Monotonicity[9]
Gain error
Input buffer bypassed
-
-
±0.2
%
-
-
±0.1
mV
-
-
3.75
mA
Vssa
-
Vdda
V
Input voltage range - differential[9]
Vssa
-
Vdda
V
Input voltage range - differential
(buffered)[9]
Vssa
-
Vdda - 1
V
10
-
-
MΩ
-
kΩ
0.0032
%
Input offset voltage
Current consumption
192 ksps, 12-bit mode,
ADC clock = 6.144 MHz[9]
Input voltage range - single
ended[9]
Input resistance[9]
THD
Typ
Total harmonic distortion[9]
Input buffer used
[12]
Input buffer bypassed, 12 bits, ADC
clock = 6.144 MHz, gain = 1
-
148
Input buffer used
-
-
Table 11-20. 12-Bit Delta-Sigma ADC AC Specifications
Parameter
PSRR
CMRR
SNR
INL
DNL
Description
Startup time[9]
Power supply rejection ratio[9]
Common mode rejection ratio[9]
Sample rate
Signal-to-noise ratio (SNR)
Input bandwidth[9]
Integral non linearity[9]
Differential non linearity[9]
Conditions
Input buffer used
Input buffer used
ADC clock = 6.144 MHz,
continuous sample mode, input
buffer bypassed
ADC clock = 3.072 MHz,
continuous sample mode, input
buffer used
Vdda ≥ 2.7V, input buffer bypassed
Min
90
90
-
Typ
-
Max
4
192
Units
samples
dB
dB
ksps
-
-
160
ksps
70
-
44
-
1
1
dB
kHz
LSB
LSB
Min
1.015
(-0.9%)
Typ
1.024
Max
1.033
(+0.9%)
Units
11.5.3 Voltage Reference
Table 11-21. Voltage Reference Specifications
Parameter
Vref
Description
Precision reference for the
Delta-Sigma ADC
Conditions
V
Note
12. Holding the gain and number of bits constant, the input resistance is proportional to the inverse of the clock frequency.
Document Number: 001-53304 Rev. *B
Page 71 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5.4 Analog Globals
Table 11-22. Analog Globals Specifications
Parameter
Rppag
Rppmuxbus
BWag
CMRRag
Description
Conditions
Min
Typ
Max
Units
Resistance pin-to-pin through
analog global[13]
Vdda = 3.0V
-
939
1461
Ω
Vdda = 1.65V
-
633
1012
Ω
Resistance pin-to-pin through
analog mux bus[13]
Vdda = 3.0V
-
721
1135
Ω
Vdda = 1.65V
-
515
843
Ω
3 dB bandwidth of analog globals
Vdda = 3.0V
24
39
-
MHz
Vdda = 1.65V
36
56
-
MHz
Vdda = 3.0V
85
91
-
dB
Vdda = 1.65V
87
93
-
dB
Common mode rejection for
differential signals
11.5.5 Comparator
Table 11-23. Comparator DC Specifications
Parameter
Vioff
Vioff
Min
Typ
Max
Units
Input offset voltage in fast mode
Description
Factory trim
-
-
±5
mV
Input offset voltage in slow mode
Factory trim
-
-
±4
mV
Input offset voltage in fast mode[14] Custom trim
-
-
±3
mV
Input offset voltage in slow mode
Vioff
Input offset voltage in ultra low
power mode
Vhyst
Hysteresis
Vicm
Input common mode voltage
Conditions
[14]
Custom trim
-
-
±2
mV
-
±12
-
mV
Hysteresis enable mode
-
10
32
mV
Fast mode
0
-
Vdda-0.1
V
Slow mode
0
-
Vdda
V
CMRR
Common mode rejection ratio
55
-
-
dB
Icmp
High current mode/fast mode[9]
-
-
400
µA
Low current mode/slow mode[9]
-
-
100
µA
Ultra low power mode[9]
-
6
-
µA
Table 11-24. Comparator AC Specifications
Parameter
Description
Min
Typ
Max
Units
50 mV overdrive, measured
pin-to-pin
-
75
TBD
ns
Response time, low current mode[9] 50 mV overdrive, measured
pin-to-pin
-
145
TBD
ns
50 mV overdrive, measured
pin-to-pin
-
55
-
µs
Response time, high current
mode[9]
Tresp
Response time, ultra low power
mode[9]
Conditions
Note
13. The resistance of the analog global and analog mux bus is high if Vdda ≤ 2.7V, and the chip is in either sleep or hibernate mode. Use of analog global and analog
mux bus under these conditions is not recommended.
14. The recommended procedure for using a custom trim value for the on-chip comparators can be found in the TRM.
Document Number: 001-53304 Rev. *B
Page 72 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5.6 IDAC
Table 11-25. IDAC (Current Digital-to-Analog Converter) DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
High[9]
Code = 255, Vdda ≥ 2.7V, RL 600Ω
-
-
2.048
mA
Code = 255, Vdda ≤ 2.7V, RL 300Ω
-
-
2.048
mA
Medium[9]
Code = 255, RL 600Ω
-
-
256
µA
Output current
Iout
[9]
Low
Code = 255, RL 600Ω
-
-
32
µA
INL
Integral non linearity
RL 600Ω, CL=15 pF
-
-
±1
LSB
DNL
Differential non linearity
RL 600Ω, CL=15 pF
-
-
±0.5
LSB
Ezs
Zero scale error
-
0
±1
LSB
Eg
Gain error
[9]
Uncompensated
-
-
2.5
%
Temperature compensated
-
-
TBD
%
IDAC_ICC
DAC current low speed mode
Code = 0
-
-
100
µA
IDAC_ICC
DAC current high speed mode[9]
Code = 0
-
-
500
µA
Min
Typ
Max
Units
-
-
8
Msps
Table 11-26. IDAC (Current Digital-to-Analog Converter) AC Specifications
Parameter
Fdac
Tsettle
Description
Conditions
Update rate
Settling time to 0.5LSB
Full scale transition, 600Ω load,
CL = 15 pF
Fast mode
Independent of IDAC range setting
(Iout)
-
-
100
ns
Slow mode
Independent of IDAC range setting
(Iout)
-
-
1000
ns
Min
Typ
Max
Units
11.5.7 VDAC
Table 11-27. VDAC (Voltage Digital-to-Analog Converter) DC Specifications
Parameter
Description
Conditions
Output resistance[9]
Rout
High
Vout = 4V
-
16
-
kΩ
Low
Vout = 1V
-
4
-
kΩ
Code = 255, Vdda > 5V
-
4
-
V
Output voltage range
Vout
[9]
High
Code = 255
-
1
-
V
INL
Integral non linearity
Low
CL=15 pF
-
-
±1.6
LSB
CL=15 pF
-
-
±1
LSB
-
-
±1
LSB
DNL
Differential non linearity
Ezs
Zero scale error
Eg
Gain error
[9]
VDAC_ICC
DAC current low speed mode
VDAC_ICC
DAC current high speed mode[9]
Document Number: 001-53304 Rev. *B
Uncompensated
-
-
3
%
Temperature compensated
-
-
TBD
%
Code = 0
-
-
100
µA
Code = 0
-
-
500
µA
Page 73 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-28. VDAC (Voltage Digital-to-Analog Converter) AC Specifications
Parameter
Fdac
Description
Conditions
Update rate
1V mode
-
Update rate[9]
4V mode
-
[9]
Settling time to 0.5LSB
Tsettle
Min
[9]
Typ
Max
Units
-
1
Msps
-
250
Ksps
Full scale transition, CL = 15 pF
High[9]
Vout = 4V
-
-
4000
ns
[9]
Vout = 1V
-
-
1000
ns
Low
11.5.8 Discrete Time Mixer
The discrete time mixer is used for modulating (shifting signals in frequency down) where the output frequency of the mixer is equal
to the difference of the input frequency and the local oscillator frequency. The discrete time mixer is created using a SC/CT Analog
Block, see the Mixer component data sheet in PSoC Creator for full AC/DC specifications, and APIs and example code.
Table 11-29. Discrete Time Mixer DC Specifications
Parameter
Description
Conditions
Analog input noise injection (RMS) 1 MHz clock rate
4 MHz clock rate
Input voltage[15]
Min
Typ
Max
Units
-
10
-
µV
-
30
-
µV
Vssa
-
Vdda
V
Input offset voltage
-
-
10
mV
Quiescent current
-
900
-
µA
Table 11-30. Discrete Time Mixer AC Specifications
Parameter
LO
Min
Typ
Max
Units
Local oscillator frequency[9]
Description
Conditions
0
-
4
MHz
Input signal frequency for down
mixing[9]
0
-
14
MHz
11.5.9 Continuous Time Mixer
The continuous time mixer is used for modulating (shift) frequencies up or down, to a limit of 1.0 MHz. The continuous time mixer is
created using a SC/CT Analog Block, see the Mixer component data sheet in PSoC Creator for full AC/DC specifications, and APIs
and example code.
Table 11-31. Continuous Time Mixer DC Specifications
Parameter
Description
Conditions
Analog input noise injection (RMS) No input signal
Input voltage[15]
Min
Typ
Max
Units
Vssa
-
10
µV
-
Vdda
V
Input offset voltage
-
-
10
mV
Quiescent current
-
900
-
µA
Min
Typ
Max
Units
-
-
1
MHz
-
-
1
MHz
Table 11-32. Continuous Time Mixer AC Specifications
Parameter
LO
Description
Local oscillator frequency
Input signal frequency[9]
Conditions
[9]
Note
15. Bandwidth is guaranteed for input common mode between 0.3V and Vdda-1.2V and for output that is between 0.05V and Vdda-0.05V.
Document Number: 001-53304 Rev. *B
Page 74 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5.10 Transimpedance Amplifier
The TIA is created using a SC/CT Analog Block, see the TIA component data sheet in PSoC Creator for full AC/DC specifications,
and APIs and example code.
Table 11-33. Transimpedance Amplifier (TIA) DC Specifications
Parameter
Vioff
Description
Conversion resistance
Rconv
Conditions
Input offset voltage
Min
Typ
Max
Units
-
-
10
mV
[16]
R = 20K
40 pF load
-20
-
+30
%
R = 30K
40 pF load
-20
-
+30
%
R = 40K
40 pF load
-20
-
+30
%
R = 80K
40 pF load
-20
-
+30
%
R = 120K
40 pF load
-20
-
+30
%
R = 250K
40 pF load
-20
-
+30
%
R= 500K
40 pF load
-20
-
+30
%
R = 1M
40 pF load
-20
-
+30
%
-
900
-
µA
Min
Typ
Max
Units
R = 20K
1800
-
-
kHz
R = 120K
330
-
-
kHz
R = 1M
47
-
-
kHz
R = 20K
1500
-
-
kHz
R = 120K
300
-
-
kHz
R = 1M
46
-
-
kHz
Quiescent current
Table 11-34. Transimpedance Amplifier (TIA) AC Specifications
Parameter
Description
Input bandwidth (-3 dB) - 20 pF load
Conditions
[15]
Input bandwidth (3 dB) - 40 pF load
Note
16. Conversion resistance values are not calibrated. Calibrated values and details about calibration are provided in PSoC Creator component data sheets. External
precision resistors can also be used.
Document Number: 001-53304 Rev. *B
Page 75 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5.11 Programmable Gain Amplifier
The PGA is created using a SC/CT Analog Block, see the PGA component data sheet in PSoC Creator for full AC/DC specifications,
and APIs and example code.
Table 11-35. PGA DC Specifications
Parameter
Vos
Description
Conditions
Min
Typ
Max
Units
-
-
10
mV
-
±30
-
µV/°C
-
-
250
µA
100 kHz
69
-
-
dB
1 MHz
38
-
-
dB
For non inverting inputs
35
-
-
MΩ
-
-
±0.15
%
±1
%
Input offset voltage[9]
DeltaV/DeltaTa Input offset voltage drift
[9]
Output current source capability[9] Drive setting 3, Vdda = 1.71V
PSRR
Zin
[9]
Power supply rejection ratio
Input impedance
[9]
Gain Error[9]
Non inverting mode, reference = Vssa
Ge1
Gain = 1
Rin of 40K
Ge2
Gain = 2
Rin of 40K
Ge4
Gain = 4
Rin of 40K
-
-
±1.03
%
Ge8
Gain = 8
Rin of 40K
-
-
±1.23
%
Ge16
Gain = 16
Rin of 40K
-
-
±2.5
%
Ge32
Gain = 32
Rin of 40K
-
-
±5
%
Ge50
Gain = 50
Rin of 40K
-
-
±5
%
Vonl
DC output non linearity G = 1[9]
-
-
0.01
% of FSR
Voh, Vol
Output voltage swing
Vssa +
0.15
-
Vdda 0.15
V
Quiescent current[9]
-
-
1.65
mA
Conditions
Min
Typ
Max
Units
Table 11-36. PGA AC Specifications
Parameter
Description
-3 db Bandwidth[9]
BW1
Gain = 1
Noninverting mode, 300 mV ≤ Vin
≤ Vdda - 1.2V, Cl ≤ 25 pF
7
-
-
MHz
BW24
Gain = 24
Noninverting mode, 300 mV ≤ Vin
≤ Vdda - 1.2V, Cl ≤ 25 pF
360
-
-
kHz
BW48
Gain = 48
Noninverting mode, 300 mV ≤ Vin
≤ Vdda - 1.2V, Cl ≤ 25 pF
215
-
-
kHz
3
-
-
V/µs
Slew Rate[9]
SR1
Gain = 1
Vdda = 1.71V 5% to 90% FS output
SR24
Gain = 24
RC limited
0.5
-
-
V/µs
SR48
Gain = 48
RC limited
0.5
-
-
V/µs
Input Noise Voltage Density
[9]
eni1
Gain = 1
10 kHz
-
38
-
nV/sqrtHz
eni24
Gain = 24
10 kHz
-
38
-
nV/sqrtHz
eni48
Gain = 48
10 kHz
-
38
-
nV/sqrtHz
Document Number: 001-53304 Rev. *B
Page 76 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.5.12 Unity Gain Buffer
The Unity Gain Buffer is created using a SC/CT Analog Block. See the Unity Gain Buffer component data sheet in PSoC Creator for
full AC/DC specifications, and APIs and example code.
Table 11-37. Unity Gain Buffer DC Specifications
Parameter
Vos
Description
Input offset voltage
Conditions
[9]
Offset voltage drift
Input voltage range
Voh, Vol
Min
Typ
Max
Units
-
-
10
mV
-
-
30
µv/°C
Vssa
-
Vdda
V
Vssa +
0.15
-
Vdda 0.15
V
Output current source capability[9] Drive setting 3, Vdda = 1.71V
-
-
250
µA
Quiescent current
-
900
-
µA
Output voltage range
Table 11-38. Unity Gain Buffer AC Specifications
Parameter
Conditions
Min
Typ
Max
Units
Bandwidth[9, 15]
Description
Noninverting mode, 300 mV ≤ Vin ≤
Vdda - 1.2V, Cl ≤ 25 pF
7
-
-
MHz
Slew rate[9]
Vdda = 1.71V 5% to 90% FS output,
CL = 50 pF
3
-
-
V/µs
-
38
-
nV/sqrtHz
Min
Typ
Max
Units
-
±5
-
°C
Input noise spectral density[9]
11.5.13 Temperature Sensor
Table 11-39. Temperature Sensor Specifications
Parameter
Description
Temp sensor accuracy
Conditions
-40 to +140 range
11.5.14 LCD Direct Drive
Table 11-40. LCD Direct Drive DC Specifications
Conditions
Min
Typ
Max
Units
Icc
Parameter
LCD operating current
Description
32x4 segment display at 30 Hz.
Segment capacitance is < 500 pF[18].
-
15
-
μA
Vbias
LCD bias range
Vdda must be 3V or higher
2.048
-
5.325
V
-
25.8
-
mV
Drivers may be combined.
-
500
5000
pF
-
-
10
mV
120
160
200
µA
Weak drive
-
0.5
-
µA
Weak drive 2
-
1
-
µA
220
260
300
µA
LCD bias step size
LCD capacitance per
segment/common driver
Long term segment offset
Iout per segment driver
Strong drive
Icc per segment driver
Strong drive
Weak drive
-
11
-
µA
Weak drive 2
-
22
-
µA
No drive
-
<25
-
nA
Document Number: 001-53304 Rev. *B
Page 77 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 11-40. LCD Direct Drive DC Specifications (continued)
Parameter
Description
Conditions
Min
Typ
Max
Units
Static (1 common)
IccLCD
LCD system operating current
Vbias = 5V
Number of LCD pins: 33 (32x1)
Number of segments: 32[17]
-
12
-
µA
IccLCD
LCD system operating current
Vbias = 3V
Number of LCD pins: 33 (32x1)
Number of segments: 32[17]
-
10
-
µA
1/4 duty (4 commons)
IccLCD
LCD system operating current
Vbias = 5V
Number of LCD pins: 36 (32x4)
Number of segments: 128[17]
-
24
-
µA
IccLCD
LCD system operating current
Vbias = 3V
Number of LCD pins: 36 (32x4)
Number of segments: 128[17]
-
21
-
µA
1/16 duty (16 commons)
IccLCD
LCD system operating current
Vbias = 5V
Number of LCD pins: 48 (32x16)
Number of segments: 512[17]
-
93
-
µA
IccLCD
LCD system operating current
Vbias = 3V
Number of LCD pins: 48 (32x16)
Number of segments: 512[17]
-
83
-
µA
Min
Typ
Max
Units
10
50
150
Hz
Table 11-41. LCD Direct Drive AC Specifications
Parameter
fLCD
Description
LCD frame rate
Conditions
Notes
17. Additional conditions: All segments on; 2000 pF glass capacitance; Type A waveform; 50 Hz LCD refresh rate; Operating temperature = 25°C; Boost converter not used.
18. Connecting an actual LCD display increases the current consumption based on the size of the LCD glass.
Document Number: 001-53304 Rev. *B
Page 78 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.6 Digital Peripherals
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.6.1 Timer
Table 11-42. Timer DC Specifications
Parameter
Description
Block current consumption
Conditions
16-bit timer, at listed input clock
frequency
3 MHz
Min
Typ
Max
Units
-
-
-
µA
-
8
-
µA
12 MHz
-
30
-
µA
48 MHz
-
120
-
µA
Min
Typ
Max
Units
DC
-
48
MHz
Table 11-43. Timer AC Specifications
Parameter
Description
Conditions
Operating frequency
Capture pulse width (Internal)
21
-
-
ns
Capture pulse width (external)
42
-
-
ns
Timer resolution
21
-
-
ns
Enable pulse width
21
-
-
ns
Enable pulse width (external)
42
-
-
ns
Reset pulse width
21
-
-
ns
Reset pulse width (external)
42
-
-
ns
Conditions
Min
Typ
Max
Units
16-bit counter, at listed input clock
frequency
-
-
-
µA
-
8
-
µA
11.6.2 Counter
Table 11-44. Counter DC Specifications
Parameter
Description
Block current consumption
3 MHz
12 MHz
-
30
-
µA
48 MHz
-
120
-
µA
Table 11-45. Counter AC Specifications
Parameter
Min
Typ
Max
Units
Operating frequency
Description
DC
-
48
MHz
Capture pulse
21
-
-
ns
Resolution
21
-
-
ns
Pulse width
21
-
-
ns
Pulse width (external)
42
Enable pulse width
21
-
-
ns
Enable pulse width (external)
42
-
-
ns
Reset pulse width
21
-
-
ns
Reset pulse width (external)
42
-
-
ns
Document Number: 001-53304 Rev. *B
Conditions
ns
Page 79 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.6.3 Pulse Width Modulation
Table 11-46. PWM DC Specifications
Parameter
Description
Block current consumption
Conditions
16-bit PWM, at listed input clock
frequency
Min
Typ
Max
Units
-
-
-
µA
3 MHz
-
8
-
µA
12 MHz
-
30
-
µA
48 MHz
-
120
-
µA
Min
Typ
Max
Units
DC
-
48
MHz
Table 11-47. Pulse Width Modulation (PWM) AC Specifications
Parameter
Description
Conditions
Operating frequency
Pulse width
21
-
-
ns
Pulse width (external)
42
-
-
ns
Kill pulse width
21
-
-
Kill pulse width (external)
42
ns
ns
Enable pulse width
21
-
-
ns
Enable pulse width (external)
42
-
-
ns
Reset pulse width
21
-
-
ns
Reset pulse width (external)
42
-
-
ns
Min
Typ
Max
Units
11.6.4 I2C
Table 11-48. Fixed I2C DC Specifications
Parameter
Description
Block current consumption
Conditions
Enabled, configured for 100 kbps
-
-
64
µA
Enabled, configured for 400 kbps
-
-
74
µA
Wake from sleep mode
-
-
TBD
µA
Min
Typ
Max
Units
-
-
1
Mbps
Table 11-49. Fixed I2C AC Specifications
Parameter
Description
Conditions
Bit rate
11.6.5 Controller Area Network[19]
Table 11-50. CAN DC Specifications
Parameter
Description
Block current consumption
Min
Typ
Max
Units
500 kbps
Conditions
-
-
285
µA
1 Mbps
-
-
330
µA
Min
Typ
Max
Units
-
-
1
Mbit
Table 11-51. CAN AC Specifications
Parameter
Description
Bit rate
Conditions
Minimum 8 MHz clock
Note
19. Refer to ISO 11898 specification for details.
Document Number: 001-53304 Rev. *B
Page 80 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.6.6 USB
Table 11-52. USB DC Specifications
Parameter
Description
Conditions
Operating current
USB enabled bus idle
Min
Typ
Max
Units
-
0.68
-
mA
11.7 Memory
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.7.1 Flash
Table 11-53. Flash DC Specifications
Parameter
Description
Conditions
Erase and program voltage
Vddd pin
Min
Typ
Max
Units
1.71
-
5.5
V
Min
Typ
Max
Units
-
-
15
ms
Table 11-54. Flash AC Specifications
Parameter
Twrite
Terase
Tbulk
Description
Conditions
Block write time (erase + program)
Block erase time
-
-
10
ms
Block program time
-
-
5
ms
Bulk erase time (16 KB to 64 KB)
[20]
-
-
35
ms
Sector erase time (8 KB to 16 KB)[20]
-
-
15
ms
Total device program time
(including JTAG, etc.)
-
-
5
seconds
100k
-
-
program/
erase
cycles
20
-
-
years
Min
Typ
Max
Units
1.71
-
5.5
V
Min
Typ
Max
Units
-
2
15
ms
1M
-
-
program/
erase
cycles
20
-
-
years
Flash endurance
Flash data retention time
Retention period measured from
last erase cycle
11.7.2 EEPROM
Table 11-55. EEPROM DC Specifications
Parameter
Description
Conditions
Erase and program voltage
Table 11-56. EEPROM AC Specifications
Parameter
Twrite
Description
Conditions
Single byte erase/write cycle time
EEPROM endurance
EEPROM data retention time
Retention period measured from
last erase cycle (up to 100K cycles)
Note
20. ECC not included
Document Number: 001-53304 Rev. *B
Page 81 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.7.3 Nonvolatile Latches (NVL))
Table 11-57. NVL DC Specifications
Parameter
Description
Erase and program voltage
Conditions
Vddd pin
Min
Typ
Max
Units
1.71
-
5.5
V
Table 11-58. NVL AC Specifications
Parameter
Description
NVL endurance
NVL data retention time
Min
Typ
Max
Units
Programmed at 25°C
Conditions
1K
-
-
program/
erase
cycles
Programmed at 0 to 70°C
100
-
-
program/
erase
cycles
Programmed at 25°C
20
-
-
years
Programmed at 0 to 70°C
20
-
-
years
Min
Typ
Max
Units
1.2
-
-
V
Min
Typ
Max
Units
DC
-
48
MHz
11.7.4 SRAM
Table 11-59. SRAM DC Specifications
Parameter
Vsram
Description
Conditions
SRAM retention voltage
Table 11-60. SRAM AC Specifications
Parameter
Fsram
Description
SRAM operating frequency
Document Number: 001-53304 Rev. *B
Conditions
Page 82 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.7.5 External Memory Interface
Figure 11-2. Asynchronous Read Cycle Timing
Tcel
EM_CEn
Taddrv
EM_Addr
Taddrh
Address
Toev
Toeh
Toel
EM_OEn
EM_WEn
Tdoesu
Tdoeh
Tdceh
Tdcesu
EM_Data
Data
Table 11-61. Asynchronous Read Cycle Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
T
EMIF Clock period
30.3
-
-
ns
Tcel
EM_CEn low time
2*T-1
-
2*T+2
ns
Taddrv
EM_CEn low to EM_Addr valid
-
-
5
ns
Taddrh
Address hold time after EM_OEn high
2
-
-
ns
Toev
EM_CEn low to EM_OEn low
-5
-
5
ns
2*T-1
-
2*T+2
ns
-5
-
5
ns
-
-
ns
Toel
EM_OEn low time
Toeh
EM_OEn high to EM_CEn high hold time
Tdoesu
Data to EM_OEn high setup time
T+20
Tdcesu
Data to EM_CEn high setup time
T+20
-
-
ns
Tdoeh
Data hold time after EM_OEn high
3
-
-
ns
Tdceh
Data hold time after EM_CEn high
3
-
-
ns
Document Number: 001-53304 Rev. *B
Page 83 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 11-3. Asynchronous Write Cycle Timing
Taddrv
EM_ Addr
Taddrh
Address
Tcel
EM_ CEn
EM_ OEn
Twev
Twel
Tweh
Tdweh
Tdcev
EM_ Data
Data
Table 11-62. Asynchronous Write Cycle Specifications
Parameter
Description
T
EMIF Clock period
Taddrv
EM_CEn low to EM_Addr valid
Taddrh
Address hold time after EM_WEn high
Tcel
EM_CEn low time
Conditions
Min
Typ
Max
Units
30.3
-
-
ns
ns
-
-
5
T+2
-
-
ns
2*T-1
-
2*T+2
ns
Twev
EM_CEn low to EM_WEn low
-5
-
5
ns
Twel
EM_WEn low time
T-1
-
T+2
ns
Tweh
EM_WEn high to EM_CEn high hold time
T
-
-
ns
Tdcev
EM_CEn low to data valid
-
-
7
ns
Tdweh
Data hold time after EM_WEn high
T
-
-
ns
Document Number: 001-53304 Rev. *B
Page 84 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 11-4. Synchronous Read Cycle Timing
Tcp
EM_ Clock
Tceld
Tcehd
EM_ CEn
Taddrv
Taddriv
Address
EM_ Addr
Toeld
Toehd
EM_ OEn
Tdh
Tds
EM_ Data
Data
Tadscld
Tadschd
EM_ ADSCn
Table 11-63. Synchronous Read Cycle Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
T
EMIF Clock period
30.3
-
-
ns
Tcp
EM_Clock period
30.3
-
-
ns
Tceld
EM_Clock low to EM_CEn low
-
5
ns
Tcehd
EM_Clock high to EM_CEn high
T/2 - 2
-
-
ns
Taddrv
EM_Clock low to EM_Addr valid
-
-
5
ns
Taddriv
EM_Clock high to EM_Addr invalid
T/2 - 2
-
-
ns
Toeld
EM_Clock low to EM_OEn low
-
-
5
ns
Toehd
EM_Clock high to EM_OEn high
T+2
-
-
ns
Tds
Data valid before EM_Clock high
20
-
-
ns
Tdh
Data valid after EM_Clock high
2
-
-
ns
Tadscld
EM_clock low to EM_ADSCn low
-
-
5
ns
Tadschd
EM_clock high to EM_ADSCn high
T/2 - 2
-
-
ns
Document Number: 001-53304 Rev. *B
Page 85 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 11-5. Synchronous Write Cycle Timing
Tcp
EM_ Clock
Tceld
Tcehd
EM_ CEn
Taddrv
Taddriv
EM_ Addr
Address
Tweld
Twehd
EM_ WEn
Tds
Data
EM_ Data
Tadscld
Tadschd
EM_ ADSCn
Table 11-64. Synchronous Write Cycle Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
T
EMIF Clock period
30.3
-
-
ns
Tcp
EM_Clock Period
30.3
-
-
ns
Tceld
EM_Clock low to EM_CEn low
-
-
5
ns
Tcehd
EM_Clock high to EM_CEn high
T/2 - 2
-
-
ns
Taddrv
EM_Clock low to EM_Addr valid
-
-
5
ns
Taddriv
EM_Clock high to EM_Addr invalid
T/2 - 2
-
-
ns
Tweld
EM_Clock low to EM_WEn low
ns
Twehd
EM_Clock high to EM_WEn high
Tds
Data valid after EM_Clock low
Tadscld
EM_clock low to EM_ADSCn low
Tadschd
EM_clock high to EM_ADSCn high
-
-
5
T/2 - 2
-
-
ns
-
-
5
ns
-
-
5
ns
T/2 - 2
-
-
ns
Min
Typ
Max
Units
-
-
33
MHz
Table 11-65. External Memory Interface (EMIF) AC Specifications
Parameter
Description
Bus frequency
Document Number: 001-53304 Rev. *B
Conditions
Page 86 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.8 PSoC System Resources
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.8.1 POR with Brown Out
Table 11-66. Power On Reset (POR) with Brown Out DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Imprecise POR (IPOR)
Rising trip voltage
0.8
-
1.45
V
Falling trip voltage
0.75
-
1.4
V
15
-
200
mV
Rising trip voltage
1.588
1.620
1.652
V
Falling trip voltage
1.562
1.594
1.626
V
Min
Typ
Max
Units
-
-
-
µs
Min
Typ
Max
Units
1.667
1.914
2.158
2.404
2.651
2.895
3.144
3.387
3.629
3.875
4.117
4.362
4.607
4.879
5.107
5.356
5.630
1.701
1.953
2.202
2.453
2.705
2.954
3.208
3.456
3.703
3.954
4.201
4.451
4.701
4.979
5.211
5.465
5.745
1.735
1.992
2.246
2.502
2.759
3.013
3.272
3.525
3.777
4.033
4.285
4.540
4.795
5.079
5.315
5.574
5.860
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Min
Typ
Max
Units
-
-
1.00E+00
µs
Hysteresis
Precise POR (PPOR)
Table 11-67. Power On Reset (POR) with Brown Out AC Specifications
Parameter
Description
Conditions
PPOR_TR Response time
11.8.2 Voltage Monitors
Table 11-68. Voltage Monitors DC Specifications
Parameter
Description
LVI
Trip Voltage
LVI_A/D_SEL[3:0] = 0000b
LVI_A/D_SEL[3:0] = 0001b
LVI_A/D_SEL[3:0] = 0010b
LVI_A/D_SEL[3:0] = 0011b
LVI_A/D_SEL[3:0] = 0100b
LVI_A/D_SEL[3:0] = 0101b
LVI_A/D_SEL[3:0] = 0110b
LVI_A/D_SEL[3:0] = 0111b
LVI_A/D_SEL[3:0] = 1000b
LVI_A/D_SEL[3:0] = 1001b
LVI_A/D_SEL[3:0] = 1010b
LVI_A/D_SEL[3:0] = 1011b
LVI_A/D_SEL[3:0] = 1100b
LVI_A/D_SEL[3:0] = 1101b
LVI_A/D_SEL[3:0] = 1110b
LVI_A/D_SEL[3:0] = 1111b
HVI
Trip Voltage
Conditions
Table 11-69. Voltage Monitors AC Specifications
Parameter
Description
Response time
Document Number: 001-53304 Rev. *B
Conditions
Page 87 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.8.3 Interrupt Controller
Table 11-70. Interrupt Controller AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Delay from Interrupt signal input to ISR Includes worse case completion of
code execution from main line code
longest instruction DIV with 6
cycles
-
-
20
Tcy CPU
Delay from Interrupt signal input to ISR Includes worse case completion of
code execution from ISR code
longest instruction DIV with 6
cycles
-
-
20
Tcy CPU
Min
Typ
Max
Units
11.8.4 JTAG Interface
Table 11-71. JTAG Interface AC Specifications[9]
Parameter
Description
Conditions
TCK frequency
-
-
8
MHz
TCK low
6.5
-
-
ns
TCK high
5.5
-
-
ns
2
-
-
ns
TDI, TMS setup before TCK high
TDI, TMS hold after TCK high
3
-
-
ns
TDO hold after TCK high
4
-
-
ns
TCK low to TDO valid
4
16
-
ns
TCK to device outputs valid
-
-
18
ns
Min
Typ
Max
Units
-
-
8
MHz
Min
Typ
Max
Units
-
-
33
Mbit
11.8.5 SWD Interface
Table 11-72. SWD Interface AC Specifications[9]
Parameter
Description
Conditions
SWDCLK frequency
11.8.6 SWV Interface
Table 11-73. SWV Interface AC Specifications[9]
Parameter
Description
SWV mode SWV bit rate
Document Number: 001-53304 Rev. *B
Conditions
Page 88 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.9 Clocking
Specifications are valid for -40°C ≤ Ta ≤ 85°C and Tj ≤ 100°C, except where noted. Specifications are valid for 1.71V to 5.5V, except
where noted.
11.9.1 32 kHz External Crystal
Table 11-74. 32 kHz External Crystal DC Specifications[9]
Parameter
Icc
Description
Operating current
Conditions
Low power mode
Min
Typ
Max
Units
-
0.25
-
µA
CL
External crystal capacitance
-
6
-
pF
DL
Drive level
-
-
1
µW
Min
Typ
Max
Units
-
32.768
-
kHz
20
50
80
%
-
1
-
s
Min
Typ
Max
Units
48 MHz
-
300
-
µA
24 MHz - Non USB mode
-
160
-
µA
Table 11-75. 32 kHz External Crystal AC Specifications
Parameter
F
Description
Conditions
Frequency
DC
Output duty cycle
Ton
Startup time
[9]
High power mode
11.9.2 Internal Main Oscillator
Table 11-76. IMO DC Specifications
Parameter
Description
Conditions
Supply current
24 MHz - USB mode
-
500
-
µA
12 MHz
With oscillator locking to USB bus
-
100
-
µA
6 MHz
-
80
-
µA
3 MHz
-
70
-
µA
Min
Typ
Max
Units
48 MHz
-5
-
5
%
24 MHz - Non USB mode
-4
-
4
%
Table 11-77. IMO AC Specifications
Parameter
Description
Conditions
IMO frequency stability (with factory trim)
Fimo
24 MHz - USB mode
-0.25
-
0.25
%
12 MHz
-3
-
3
%
6 MHz
-2
-
2
%
3 MHz
-1
-
1
%
-
-
10
µs
F = 24 MHz
-
0.9
-
ns
F = 3 MHz
-
1.6
-
ns
F = 24 MHz
-
0.9
-
ns
F = 3 MHz
-
12
-
ns
[9]
Startup time
With oscillator locking to USB bus
From enable (during normal system
operation) or wakeup from low
power state
Jitter (peak to peak)[9]
Jp-p
Jitter (long term)
Jperiod
[9]
Document Number: 001-53304 Rev. *B
Page 89 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.9.3 Internal Low Speed Oscillator
Table 11-78. ILO DC Specifications
Parameter
Icc
Description
Conditions
Operating current, includes sleep timer Fout = 1 kHz
and WDT
Fout = 32 kHz
Fout = 100 kHz
Min
Typ
Max
Units
-
0.3
-
µA
-
0.5
-
µA
-
0.6
-
µA
Min
Typ
Max
Units
-
0.1
3
ms
Table 11-79. ILO AC Specifications[9]
Parameter
Description
Startup time
Conditions
Turbo mode
Startup time
Non turbo mode, pd_mode = 0
-
0.6
2
ms
Startup time
Non turbo mode, pd_mode = 1
-
0.8
17
ms
45
50
55
%
100 kHz
80
100
130
kHz
32 kHz
26
32
43
kHz
1 kHz
0.75
1
1.65
kHz
100 kHz
55
100
160
kHz
32 kHz
18
32
56
kHz
1 kHz
0.55
1
1.75
kHz
Min
Typ
Max
Units
Duty cycle
ILO frequencies (trimmed)
Filo
ILO frequencies (untrimmed)
11.9.4 External Crystal Oscillator
Table 11-80. ECO AC Specifications
Parameter
Description
Conditions
F
Crystal frequency range
4
-
33
MHz
DC
Duty cycle[9]
40
50
60
%
SIO, GPIO
-
200
-
ps
SIO, GPIO
-
200
-
ps
Min
Typ
Max
Units
0
-
33
MHz
Jp-p
Jitter (peak to peak)
Jperiod
Jitter (long term)[9]
[9]
11.9.5 External Clock Reference
Table 11-81. External Clock Reference AC Specifications[9]
Parameter
Description
Conditions
External frequency range
Input duty cycle range
Measured at Vddio/2
30
50
70
%
Input edge rate
Vil to Vih
0.1
-
-
V/ns
Document Number: 001-53304 Rev. *B
Page 90 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
11.9.6 Phase-Locked Loop
Table 11-82. PLL DC Specifications
Parameter
Idd
Description
PLL operating current
Conditions
Min
Typ
Max
Units
FREF = 3 MHz, FVCO=48 MHz
-
1920
-
µA
FREF = 3 MHz, FVCO=24 MHz
-
560
-
µA
Min
Typ
Max
Units
Table 11-83. PLL AC Specifications
Parameter
Description
Conditions
Fpllinpre
PLL prescaler input frequency
1
-
48
MHz
Fpllin
PLL input frequency
1
-
3
MHz
PLL output frequency
24
-
48
MHz
-
-
250
µs
-
-
250
ps
45
-
55
%
Fpllout
Lock time at startup
[9]
Jperiod-rms Jitter (rms)
PLL output duty cycle
Document Number: 001-53304 Rev. *B
All PLL output frequencies
Page 91 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
12. Ordering Information
In addition to the features listed in Table 12-1, every CY8C34 device includes: a precision on-chip voltage reference, precision
oscillators, Flash, ECC, DMA, a fixed function I2C, 4 KB trace RAM, JTAG/SWD programming and debug, external memory interface,
and more. In addition to these features, the flexible UDBs and Analog Subsection support a wide range of peripherals. To assist you
in selecting the ideal part, PSoC Creator makes a part recommendation after you choose the components required by your application.
All CY8C34 derivatives incorporate device and Flash security in user-selectable security levels; see TRM for details.
Table 12-1. CY8C34 Family with Single Cycle 8051
I/O[23]
Comparator
SC/CT
Analog Blocks[21]
Opamps
DFB
UDBs[22]
FS USB
CAN 2.0b
Total I/O
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
70 62 8
0
100-TQFP 0x0E060069
48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
46 38 8
0
68-QFN
CY8C3444LTI-109
JTAG ID[24]
USBIO
SIO
Package
GPIO
16-bit Timer/PWM
DAC
2
CY8C3444LTI-110
ADC
LCD Segment Drive
CY8C3444AXI-096 48 16
Part Number
CPU Speed (MHz)
EEPROM (KB)
Digital
SRAM (KB)
Analog
Flash (KB)
MCU Core
16 KB Flash
0x0E06E069
48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
29 25 4
0
48-QFN
0x0E06D069
CY8C3444PVI-118 48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
29 25 4
0
48-SSOP
0x0E076069
CY8C3444AXI-106 48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
72 62 8
2
100-TQFP 0x0E06A069
CY8C3444LTI-113
48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
48 38 8
2
68-QFN
CY8C3444LTI-112
0x0E071069
48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
31 25 4
2
48-QFN
0x0E070069
CY8C3444PVI-101 48 16
2
0.5
-
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
31 25 4
2
48-SSOP
0x0E065069
CY8C3444AXI-116 48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
70 62 8
0
100-TQFP 0x0E074069
CY8C3444LTI-111
48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
46 38 8
0
68-QFN
CY8C3444LTI-119
0x0E06F069
48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
29 25 4
0
48-QFN
0x0E077069
CY8C3444PVI-100 48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
-
-
29 25 4
0
48-SSOP
0x0E064069
CY8C3444AXI-117 48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
72 62 8
2
100-TQFP 0x0E075069
CY8C3444LTI-114
48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
48 38 8
2
68-QFN
CY8C3444LTI-120
48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
31 25 4
2
48-QFN
0x0E078069
CY8C3444PVI-103 48 16
2
0.5
✔
12-bit Del-Sig 2
4
2
2
-
16 4
✔
-
31 25 4
2
48-SSOP
0x0E067069
CY8C3445AXI-104 48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
70 62 8
0
100-TQFP 0x0E068069
CY8C3445LTI-086
48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
46 38 8
0
68-QFN
CY8C3445LTI-093
48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
29 25 4
0
48-QFN
0x0E05D069
CY8C3445PVI-077 48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
29 25 4
0
48-SSOP
0x0E04D069
CY8C3445AXI-107 48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
72 62 8
2
100-TQFP 0x0E06B069
CY8C3445LTI-095
48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
48 38 8
2
68-QFN
CY8C3445LTI-087
48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
31 25 4
2
48-QFN
0x0E057069
CY8C3445PVI-088 48 32
4
1
-
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
31 25 4
2
48-SSOP
0x0E058069
CY8C3445AXI-097 48 32
4
1
✔
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
70 62 8
0
100-TQFP 0x0E061069
CY8C3445LTI-079
48 32
4
1
✔
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
46 38 8
0
68-QFN
0x0E04F069
CY8C3445LTI-078
48 32
4
1
✔
12-bit Del-Sig 2
4
2
2
-
20 4
-
-
29 25 4
0
48-QFN
0x0E04E069
0x0E072069
32 KB Flash
0x0E056069
0x0E05F069
Notes
21. Analog blocks support a wide variety of functionality including TIA, PGA, and mixers. See the “Example Peripherals” section on page 35 for more information on how
Analog Blocks may be used.
22. UDBs support a wide variety of functionality including SPI, LIN, UART, timer, counter, PWM, PRS, and others. Individual functions may use a fraction of a UDB or
multiple UDBs. Multiple functions can share a single UDB. See the “Example Peripherals” section on page 35 for more information on how UDBs may be used.
23. The I/O Count includes all types of digital I/O: GPIO, SIO, and the two USB I/O. See the ““I/O System and Routing” section on page 29” for details on the functionality
of each of these types of I/O.
24. The JTAG ID has three major fields. The most significant nibble (left digit) is the version, followed by a 2 byte part number and a 3 nibble manufacturer ID.
Document Number: 001-53304 Rev. *B
Page 92 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Table 12-1. CY8C34 Family with Single Cycle 8051 (continued)
I/O[23]
Digital
-
-
29 25 4
0
48-SSOP
20 4
✔
-
72 62 8
2
100-TQFP 0x0E06C069
CY8C3445LTI-081
48 32
4
1
✔
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
48 38 8
2
68-QFN
CY8C3445LTI-089
48 32
4
1
✔
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
31 25 4
2
48-QFN
0x0E059069
CY8C3445PVI-090 48 32
4
1
✔
12-bit Del-Sig 2
4
2
2
-
20 4
✔
-
31 25 4
2
48-SSOP
0x0E05A069
CY8C3446AXI-115 48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
70 62 8
0
100-TQFP 0x0E073069
CY8C3446LTI-072
48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
46 38 8
0
68-QFN
CY8C3446LTI-071
48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
29 25 4
0
48-QFN
0x0E047069
CY8C3446PVI-082 48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
29 25 4
0
48-SSOP
0x0E052069
CY8C3446AXI-098 48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
72 62 8
2
100-TQFP 0x0E062069
CY8C3446LTI-084
48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
48 38 8
2
68-QFN
CY8C3446LTI-073
48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
31 25 4
2
48-QFN
0x0E049069
CY8C3446PVI-092 48 64
8
2
-
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
31 25 4
2
48-SSOP
0x0E05C069
CY8C3446AXI-105 48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
70 62 8
0
100-TQFP 0x0E069069
CY8C3446LTI-074
48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
46 38 8
0
68-QFN
CY8C3446LTI-083
48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
29 25 4
0
48-QFN
0x0E053069
CY8C3446PVI-091 48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
-
-
29 25 4
0
48-SSOP
0x0E05B069
CY8C3446AXI-099 48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
72 62 8
2
100-TQFP 0x0E063069
CY8C3446LTI-085
48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
48 38 8
2
68-QFN
CY8C3446LTI-075
48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
31 25 4
2
48-QFN
0x0E04B069
CY8C3446PVI-076 48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
✔
-
31 25 4
2
48-SSOP
0x0E04C069
CY8C3446PVI-102 48 64
8
2
✔
12-bit Del-Sig 2
4
2
2
-
24 4
-
✔ 29 25 4
0
48-SSOP
0x0E066069
JTAG ID[24]
USBIO
SIO
GPIO
Total I/O
CAN 2.0b
Package
FS USB
16-bit Timer/PWM
20 4
-
UDBs[22]
-
2
DFB
2
2
Opamps
2
4
SC/CT
Analog Blocks[21]
4
12-bit Del-Sig 2
Comparator
12-bit Del-Sig 2
✔
DAC
✔
ADC
1
1
SRAM (KB)
4
4
Flash (KB)
CY8C3445PVI-094 48 32
CY8C3445AXI-108 48 32
Part Number
CPU Speed (MHz)
LCD Segment Drive
Analog
EEPROM (KB)
MCU Core
0x0E05E069
0x0E051069
64 KB Flash
Document Number: 001-53304 Rev. *B
0x0E048069
0x0E054069
0x0E04A069
0x0E055069
Page 93 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
12.1 Part Numbering Conventions
PSoC 3 devices follow the part numbering convention described below. All fields are single character alphanumeric (0, 1, 2, …, 9, A,
B, …, Z) unless stated otherwise.
CY8Cabcdefg-xxx
„ a: Architecture
3: PSoC 3
‡ 5: PSoC 5
‡
„ b: Family Group within Architecture
4: CY8C34 family
6: CY8C36 family
‡ 8: CY8C38 family
‡
‡
„ c: Speed Grade
‡
‡
4: 48 MHz
6: 67 MHz
„ d: Flash Capacity
4: 16 KB
5: 32 KB
‡ 6: 64 KB
‡
„ ef: Package Code
Two character alphanumeric
AX: TQFP
‡ LT: QFN
‡ PV: SSOP
‡
‡
„ g: Temperature Range
C: commercial
I: industrial
‡ A: automotive
‡
‡
„ xxx: Peripheral Set
‡
‡
Three character numeric
No meaning is associated with these three characters.
‡
Example
CY8C
3 4 4 6 P V
I
-
x x x
Cypress Prefix
3: PSoC3
4: CY8C34 Family
4: 48 MHz
Architecture
Family Group within Architecture
Speed Grade
6: 64 KB
Flash Capacity
PV: SSOP
Package Code
I: Industrial
Temperature Range
Peripheral Set
All devices in the PSoC 3 CY8C34 family comply to RoHS-6 specifications, demonstrating the commitment by Cypress to lead-free
products. Lead (Pb) is an alloying element in solders that has resulted in environmental concerns due to potential toxicity. Cypress
uses nickel-palladium-gold (NiPdAu) technology for the majority of leadframe-based packages.
A high level review of the Cypress Pb-free position is available on our website. Specific package information is also available. Package
Material Declaration Datasheets (PMDDs) identify all substances contained within Cypress packages. PMDDs also confirm the
absence of many banned substances. The information in the PMDDs will help Cypress customers plan for recycling or other "end of
life" requirements.
Document Number: 001-53304 Rev. *B
Page 94 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
13. Packaging
Table 13-1. Package Characteristics
Parameter
Description
Conditions
Min
Typ
Max
Units
Ta
Operating ambient temperature
-40
25.00
85
°C
Tj
Operating junction temperature
-40
-
100
°C
Tja
Package θJA (48 SSOP)
-
45.16
-
°C/Watt
Tja
Package θJA (48 QFN)
-
15.94
-
°C/Watt
Tja
Package θJA (68 QFN)
-
11.72
-
°C/Watt
Tja
Package θJA (100 TQFP)
-
30.52
-
°C/Watt
Tjc
Package θJC (48 SSOP)
-
27.84
-
°C/Watt
Tjc
Package θJC (48 QFN)
-
7.05
-
°C/Watt
Tjc
Package θJC (68 QFN)
-
6.32
-
°C/Watt
Tjc
Package θJC (100 TQFP)
-
9.04
-
°C/Watt
Pb-Free assemblies (20s to 40s) Sn-Ag-Cu solder paste reflow
temperature
235
-
245
°C
Pb-Free assemblies (20s to 40s) Sn-Pb solder paste reflow temperature
205
-
220
°C
Figure 13-1. 48-Pin (300 mil) SSOP Package Outline
.020
24
1
0.395
0.420
0.292
0.299
25
DIMENSIONS IN INCHES MIN.
MAX.
48
0.620
0.630
0.088
0.092
0.095
0.110
0.025
BSC
Document Number: 001-53304 Rev. *B
SEATING PLANE
0.005
0.010
.010
GAUGE PLANE
0.004
0.008
0.0135
0.008
0.016
0°-8°
0.024
0.040
51-85061-*C
Page 95 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 13-2. 48-Pin QFN Package Outline
001- 45616 *A
Document Number: 001-53304 Rev. *B
Page 96 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
Figure 13-3. 68-Pin QFN 8x8 with 0.4 mm Pitch Package Outline (Sawn Version)
TOP VIEW
BOTTOM VIEW
SIDE VIEW
0.900±0.100
5.7±0.10
8.000±0.100
0.200 REF
5
1
PIN 1 DOT
8.000±0.100
LASER MARK
1
7
0.20±0.05
0.05 MAX
C
0.08
3
4
1
8
6.40 REF
SEATING PLANE
NOTES:
1.
1
7
3
0.400±0.1005
3
4
1
8
1
SOLDERABLE
EXPOSED
PAD
5.7±0.10
3
5
6
8
5
2
6.40 REF
5
1
1
PIN1 ID
R 0.20
0.400 PITCH
5
2
6
8
HATCH AREA IS SOLDERABLE EXPOSED METAL.
001-09618 *C
2. REFERENCE JEDEC#: MO-220
3. PACKAGE WEIGHT: 0.17g
4. ALL DIMENSIONS ARE IN MILLIMETERS
Figure 13-4. 100-Pin TQFP (14 x 14 x 1.4 mm) Package Outline
NOTE:
16.00±0.25 SQ
1. JEDEC STD REF MS-026
14.00±0.05 SQ
100
2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH
MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.0098 in (0.25 mm) PER SIDE
BODY LENGTH DIMENSIONS ARE MAX PLASTIC BODY SIZE INCLUDING MOLD MISMATCH
76
75
3. DIMENSIONS IN MILLIMETERS
0.22±0.05
1
R 0.08 MIN.
0.20 MAX.
0° MIN.
STAND-OFF
0.05 MIN.
0.15 MAX.
0.25
GAUGE PLANE
R 0.08 MIN.
0.20 MAX.
0.50
TYP.
DETAIL
0°-7°
0 0 12.0000
A
0.60±0.15
25
51
26
SEATING PLANE
1.60 MAX.
50
NOTE: PKG. CAN HAVE
OR
12°±1°
(8X)
1.40±0.05
TOP LEFT CORNER CHAMFER
4 CORNERS CHAMFER
0.08
0.20 MAX.
51-85048-*C
SEE DETAIL
Document Number: 001-53304 Rev. *B
A
Page 97 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
14. Revision History
Description Title: PSoC®3: CY8C34 Family Data Sheet Programmable System-on-Chip (PSoC®)
Document Number: 001-53304
Rev.
ECN No.
Submission
Date
Orig. of
Change
Description of Change
**
2714270
06/03/09
VVSK
New data sheet
*A
2758970
09/02/09
MKEA
Updated Part Numbering Conventions
Added Section 11.7.5 (EMIF Figures and Tables)
Updated GPIO and SIO AC specifications
Updated XRES Pin Description and Xdata Address Map specifications
Updated DFB and Comparator specifications
Updated PHUB features section and RTC in sleep mode
Updated IDAC and VDAC DC and Analog Global specifications
Updated USBIO AC and Delta Sigma ADC specifications
Updated PPOR and Voltage Monitors DC specifications
Updated Drive Mode diagram
Added 48-QFN Information
Updated other electrical specifications
*B
2824546
12/09/09
MKEA
Updated I2C section to reflect 1 Mbps. Updated Table 11-6 and 11- 7 (Boost
AC and DC specs); also added Shottky Diode specs. Changed current for
sleep/hibernate mode to include SIO; Added footnote to analog global specs.
Updated Figures 1-1, 6-2, 7-14, and 8-1. Updated Table 6-2 and Table 6-3
(Hibernate and Sleep rows) and Power Modes section. Updated GPIO and
SIO AC specifications. Updated Gain error in IDAC and VDAC specifications.
Updated description of Vdda spec in Table 11-1 and removed GPIO Clamp
Current parameter. Updated number of UDBs on page 1.
Moved FILO from ILO DC to AC table.
Added PCB Layout and PCB Schematic diagrams.
Updated Fgpioout spec (Table 11-9). Added duty cycle frequency in PLL AC
spec table. Added note for Sleep and Hibernate modes and Active Mode
specs in Table 11-2. Linked URL in Section 10.3 to PSoC Creator site.
Updated Ja and Jc values in Table 13-1. Updated Single Sample Mode and
Fast FIR Mode sections. Updated Input Resistance specification in Del-Sig
ADC table. Added Tio_init parameter. Updated PGA and UGB AC Specs.
Removed SPC ADC. Updated Boost Converter section.
Added section 'SIO as Comparator'; updated Hysteresis spec (differential
mode) in Table 11-10.
Updated Vbat condition and deleted Vstart parameter in Table 11-6.
Added 'Bytes' column for Tables 4-1 to 4-5.
Document Number: 001-53304 Rev. *B
Page 98 of 99
[+] Feedback
PRELIMINARY
PSoC®3: CY8C34 Family Data Sheet
15. Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office
closest to you, visit us at cypress.com/sales.
Products
PSoC
psoc.cypress.com
Clocks & Buffers
clocks.cypress.com
Wireless
wireless.cypress.com
Memories
memory.cypress.com
Image Sensors
image.cypress.com
© Cypress Semiconductor Corporation, 2009. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any
circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical,
life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical
components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document Number: 001-53304 Rev. *B
®
®
®
®
Revised December 03, 2009
Page 99 of 99
®
CapSense , PSoC 3, PSoC 5, and PSoC Creator™ are trademarks and PSoC is a registered trademark of Cypress Semiconductor Corp. All other trademarks or registered trademarks referenced
herein are property of the respective corporations.
Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided
that the system conforms to the I2C Standard Specification as defined by Philips.
ARM is a registered trademark, and Keil, and RealView are trademarks, of ARM Limited. All products and company names mentioned in this document may be the trademarks of their respective holders.
[+] Feedback
Similar pages