at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 62

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

12.3.2
Figure 12-3. Application Test Environment Example
12.4
62
Debug and Test Pin Description
AT91SAM9260
Test Environment
Figure 12-3 on page 62
preted by the tester. 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.
Table 12-1.
Pin Name
NRST
TST
NTRST
TCK
TDI
TDO
TMS
RTCK
JTAGSEL
DRXD
DTXD
AT91SAM9260-based Application Board In Test
Connector
ICE/JTAG
Debug and Test Pin List
AT91SAM9260
Interface
JTAG
Chip n
shows a test environment example. Test vectors are sent and inter-
Test Adaptor
Function
Microcontroller Reset
Test Mode Select
Test Reset Signal
Test Clock
Test Data In
Test Data Out
Test Mode Select
Returned Test Clock
JTAG Selection
Debug Receive Data
Debug Transmit Data
Chip 2
Chip 1
ICE and JTAG
Debug Unit
Reset/Test
Tester
Input/Output
Output
Output
Output
Type
Input
Input
Input
Input
Input
Input
Input
6221G–ATARM–31-Jan-08
Active Level
High
Low
Low