5

SAMA5D3 Series [SUMMARY DATASHEET]

11121AS–ATARM–31-Jan-13

3.

Signal Description

Table 3-1 gives details on the signal names classified by peripheral.

Table 3-1.

Signal Description List

Signal Name

Function

Type

Active

Level

Frequency

(MHz)

Comments

Clocks, Oscillators and PLLs

XIN

Main Oscillator Input

Input

XOUT

Main Oscillator Output

Output

XIN32

Slow Clock Oscillator Input

Input

XOUT32

Slow Clock Oscillator Output

Output

VBG

Bias Voltage Reference for USB

Analog

PCK0 - PCK2

Programmable Clock Output

Output

Shutdown, Wakeup Logic

SHDN

Shut-Down Control

Output

WKUP

Wake-Up Input

Input

ICE and JTAG

TCK/SWCLK

Test Clock/Serial Wire Clock

Input

TDI

Test Data In

Input

TDO

Test Data Out

Output

TMS/SWDIO

Test Mode Select/Serial Wire Input/Output

I/O

JTAGSEL

JTAG Selection

Input

Reset/Test

NRST

Microcontroller Reset

I/O

Low

TST

Test Mode Select

Input

NTRST

Test Reset Signal

Input

BMS

Boot Mode Select

Input

Debug Unit - DBGU

DRXD

Debug Receive Data

Input

DTXD

Debug Transmit Data

Output

Advanced Interrupt Controller - AIC

IRQ

External Interrupt Input

Input

FIQ

Fast Interrupt Input

Input

PIO Controller - PIOA - PIOB - PIOC - PIOD - PIOE

PA0 - PAxx

Parallel IO Controller A

I/O

PB0 - PBxx

Parallel IO Controller B

I/O

PC0 - PCxx

Parallel IO Controller C

I/O

PD0 - PDxx

Parallel IO Controller D

I/O

PE0 - PExx

Parallel IO Controller E

I/O