AT91SAM9G45(2009) Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

AT91SAM9G45
(Rev.:2009)

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

AT91SAM9G45

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

PC0 - PC31

Wake-Up Input

Test Clock

Input

ICE and JTAG

Input

VDDBU

VDDIOP0

Test Data In

Test Data Out

Test Mode Select

JTAG Selection

Return Test Clock

Microcontroller Reset (2)

Input

Output

Input

Input

Output

Reset/Test

I/O

Low

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)

Parallel IO Controller C

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).

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

VDDIOP0.

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

5

6438D–ATARM–13-Oct-09

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