AT91SAM9G46 데이터 시트보기 (PDF) - Atmel Corporation

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AT91SAM9G46

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

AT91SAM9G46

Table 3-1. Signal Description List (Continued)

Signal Name

Function

Type

Active

Level

Shutdown, Wakeup Logic

Reference

Voltage

SHDN

Shut-Down Control

Output

VDDBU

WKUP

TCK

TDI

TDO

TMS

JTAGSEL

RTCK

NRST

TST

NTRST

BMS

DRXD

DTXD

IRQ

FIQ

PA0 - PA31

PB0 - PB31

Wake-Up Input

Test Clock

Test Data In

Test Data Out

Test Mode Select

JTAG Selection

Return Test Clock

Microcontroller Reset(2)

Input

ICE and JTAG

Input

Input

Output

Input

Input

Output

Reset/Test

I/O

Low

VDDBU

VDDIOP0

VDDIOP0

VDDIOP0

VDDIOP0

VDDBU

VDDIOP0

VDDIOP0

Test Mode Select

Input

VDDBU

Test Reset Signal

Input

VDDIOP0

Boot Mode Select

Input

VDDIOP0

Debug Unit - DBGU

Debug Receive Data

Input

(1)

Debug Transmit Data

Output

(1)

Advanced Interrupt Controller - AIC

External Interrupt Input

Input

(1)

Fast Interrupt Input

Input

(1)

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

Parallel IO Controller A

I/O

(1)

Parallel IO Controller B

I/O

(1)

Comments

Driven at 0V only.

0: The device is in backup

mode

1: The device is running (not in

backup mode).

Accept between 0V and

VDDBU.

No pull-up resistor, Schmitt

trigger

No pull-up resistor, Schmitt

trigger

No pull-up resistor, Schmitt

trigger

Pull-down resistor (15 kΩ).

Open-drain output,

Pull-Up resistor (100 kΩ),

Schmitt trigger

Pull-down resistor (15 kΩ),

Schmitt trigger

Pull-Up resistor (100 kΩ),

Schmitt trigger

must be connected to GND or

VDDIOP.

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

5

11028BS–ATARM–26-Apr-10

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