AT91SAM9G46B-CU Ver la hoja de datos (PDF) - Atmel Corporation

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componentes Descripción

Fabricante

AT91SAM9G46B-CU

SMART ARM-based Embedded MPU

Atmel Corporation 

Table 2-1. Signal Description List (Continued)

Signal Name

Function

Active Reference

Type Level Voltage Comments

Shutdown, Wakeup Logic

SHDN

Shutdown Control

Output

VDDBU

Driven at 0V only.

0: The device is in backup mode.

1: The device is running (not in

backup mode).

WKUP

Wake-up Input

Input

VDDBU Accepts between 0V and VDDBU

ICE and JTAG

TCK

Test Clock

Input

VDDIOP0 No pull-up resistor, Schmitt trigger

TDI

Test Data In

Input

VDDIOP0 No pull-up resistor, Schmitt trigger

TDO

Test Data Out

Output

VDDIOP0

TMS

Test Mode Select

Input

VDDIOP0 No pull-up resistor, Schmitt trigger

JTAGSEL

JTAG Selection

Input

VDDBU Pull-down resistor (15 kΩ)

RTCK

Return Test Clock

Output

VDDIOP0

Reset/Test

NRST

Microcontroller Reset (2)

Open drain output.

I/O Low VDDIOP0 Pull-up resistor (100 kΩ), Schmitt

trigger.

TST

Test Mode Select

Input

VDDBU

Pull-down resistor (15 kΩ),

Schmitt trigger

NTRST

Test Reset Signal

Input

VDDIOP0

Pull-up resistor (100 kΩ),

Schmitt trigger

BMS

Boot Mode Select

Input

VDDIOP0

Must be connected to GND or

VDDIOP0

DRXD

DTXD

Debug Unit - DBGU

Debug Receive Data

Input

(1)

Debug Transmit Data

Output

(1)

Advanced Interrupt Controller - AIC

IRQ

External Interrupt Input

Input

(1)

FIQ

Fast Interrupt Input

Input

(1)

PA0–PA31

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

Parallel IO Controller A

I/O

(1)

PB0–PB31

PC0–PC31

PD0–PD31

Parallel IO Controller B

Parallel IO Controller C

Parallel IO Controller D

I/O

(1)

I/O

(1)

Pulled-up input at reset

(100 kΩ)(3), Schmitt trigger

I/O

(1)

PE0–PE31

Parallel IO Controller E

I/O

(1)

SAM9G46 Series [DATASHEET]

5

Atmel-11028G-ATARM-SAM9G46-Datasheet_08-Dec-15

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