Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Data Sheet
Product codes
AT91SAM9X25-EK
47
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
10.5 Debug and Test Pin Description
Table 10-1. Debug and Test Pin List
Pin Name
Function
Type
Active Level
Reset/Test
NRST
Microcontroller Reset
Input/Output
Low
TST
Test Mode Select
Input
High
ICE and JTAG
NTRST
Test Reset Signal
Input
Low
TCK
Test Clock
Input
TDI
Test Data In
Input
TDO
Test Data Out
Output
TMS
Test Mode Select
Input
RTCK
Returned Test Clock
Output
JTAGSEL
JTAG Selection
Input
Debug Unit
DRXD
Debug Receive Data
Input
DTXD
Debug Transmit Data
Output