AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 47

• Manufacturer Part Number: AT91SAM7X128
• Description: MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
• Manufacturer: Atmel

Specifications of AT91SAM7X128

• Package: 100LQFP
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• Ram Size: 32 KB
• Program Memory Size: 128 KB
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 62
• Interface Type: CAN/Ethernet/SPI/I2S/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

12.3.2
12.4
6120H–ATARM–17-Feb-09
Debug and Test Pin Description
Test Environment
Figure 12-3
ter. In this example, the “board in test” is designed using a number of JTAG-compliant devices.
These devices can be connected to form a single scan chain.
Figure 12-3. Application Test Environment Example
Table 12-1.
Pin Name
NRST
TST
TCK
TDI
TDO
TMS
JTAGSEL
DRXD
DTXD
shows a test environment example. Test vectors are sent and interpreted by the tes-
Debug and Test Pin List
AT91SAM7Xxx-based Application Board In Test
AT91SAM7X512/256/128 Preliminary
Connector
ICE/JTAG
AT91SAM7Xxx
Interface
JTAG
Function
Microcontroller Reset
Test Mode Select
Test Clock
Test Data In
Test Data Out
Test Mode Select
JTAG Selection
Debug Receive Data
Debug Transmit Data
Chip n
ICE and JTAG
Test Adaptor
Debug Unit
Reset/Test
Chip 2
Chip 1
Tester
Input/Output
Output
Output
Type
Input
Input
Input
Input
Input
Input
Active Level
High
Low
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