Datasheet

9
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
ICE and JTAG
TCK/SWCLK Test Clock/Serial Wire Clock Input
VDDIO
Reset State:
- SWJ-DP Mode
- Internal pull-up disabled
(1)
TDI Test Data In Input
TDO/TRACESWO
Test Data Out / Trace
Asynchronous Data Out
Output
TMS/SWDIO
Test Mode Select /Serial Wire
Input/Output
Input / I/O
JTAGSEL JTAG Selection Input High VDDBU
Permanent Internal
pull-down
Flash Memory
ERASE
Flash and NVM Configuration Bits
Erase Command
Input High VDDIO Pull-down resistor
Reset/Test
NRST Microcontroller Reset I/O Low VDDIO Pull-up resistor
NRSTB
Asynchronous Microcontroller
Reset
Input Low VDDBU Pull-up resistor
TST Test Mode Select Input VDDBU Pull-down resistor
Universal Asynchronous Receiver Transceiver - UART
URXD UART Receive Data Input
UTXD UART Transmit Data Output
PIO Controller - PIOA - PIOB - PIOC - PIOD - PIOE - PIOF
PA0–PA31 Parallel IO Controller A I/O
VDDIO
Schmitt Trigger
(3)
Reset State:
- PIO Input
- Internal pull-up enabled
PB0–PB31 Parallel IO Controller B I/O
Schmitt Trigger
(4)
Reset State:
- PIO Input
- Internal pull-up enabled
PC0–PC30 Parallel IO Controller C I/O
Schmitt Trigger
(5)
Reset State:
- PIO Input
- Internal pull-up enabled
PD0–PD30 Parallel IO Controller D I/O
Schmitt Trigger
(6)
Reset State:
- PIO Input
- Internal pull-up enabled
PE0–PE31 Parallel IO Controller E I/O
Schmitt Trigger
(7)
Reset State:
- PIO Input
- Internal pull-up enabled
PF0–PF6 Parallel IO Controller F I/O
Schmitt Trigger
(7)
Reset State:
- PIO Input
- Internal pull-up enabled
Table 3-1. Signal Description List (Continued)
Signal Name Function Type
Active
Level
Voltage
Reference Comments