SAM3A ATMEL [ATMEL Corporation], SAM3A Datasheet - Page 8

• Manufacturer Part Number: SAM3A
• Description: AT91SAM ARM-based Flash MCU
• Manufacturer: ATMEL [ATMEL Corporation]

Table 3-1.
10
10
Signal Name
TCK/SWCLK
TDI
TDO/TRACESWO
TMS/SWDIO
JTAGSEL
ERASE
NRST
NRSTB
TST
URXD
UTXD
SAM3X/A
SAM3X/A
Signal Description List (Continued)
Function
Test Clock/Serial Wire Clock
Test Data In
Test Data Out / Trace Asynchronous Data
Out
Test Mode Select /Serial Wire
Input/Output
JTAG Selection
Flash and NVM Configuration Bits
Erase Command
Microcontroller Reset
Asynchronous Microcontroller Reset
Test Mode Select
UART Receive Data
UART Transmit Data
Universal Asynchronous Receiver Transceiver - UART
Flash Memory
ICE and JTAG
Reset/Test
Input / I/O
Output
Output
Type
Input
Input
Input
Input
Input
Input
Input
I/O
Active
Level
High
High
Low
Low
Reference
Voltage
VDDBU
VDDBU
VDDBU
VDDIO
VDDIO
VDDIO
11057BS–ATARM–13-Jul-12
11057BS–ATARM–13-Jul-12
Comments
Reset State:
- SWJ-DP Mode
- Internal pull-up
disabled
Permanent Internal
pull-down
Pull-up resistor
Pull-up resistor
Pull-down resistor
Pull-down resistor
(1)