AT91SAM9261 Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

AT91SAM9261

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

AT91SAM9261 Preliminary

3. Signal Description

Table 3-1. Signal Description by Peripheral

Signal Name

Function

Type

Active Level

Power

VDDIOM

EBI I/O Lines Power Supply

Power

VDDIOP

Peripherals I/O Lines Power Supply

Power

VDDBU

Backup I/O Lines Power Supply

Power

VDDPLL

PLL Power Supply

Power

VDDOSC

Oscillator Power Supply

Power

VDDCORE

Core Chip Power Supply

Power

GND

Ground

Ground

GNDPLL

PLL Ground

Ground

GNDOSC

Oscillator Ground

Ground

GNDBU

Backup Ground

Ground

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

PLLRCA

PLL Filter

Input

PLLRCB

PLL Filter

Input

PCK0 - PCK3

Programmable Clock Output

Output

Shutdown, Wakeup Logic

SHDN

Shutdown Control

Output

WKUP

Wake-Up Input

Input

ICE and JTAG

TCK

Test Clock

Input

RTCK

Returned Test Clock

Output

TDI

Test Data In

Input

TDO

Test Data Out

Output

TMS

Test Mode Select

Input

NTRST

Test Reset Signal

Input

Low

JTAGSEL

JTAG Selection

Input

TSYNC

TCLK

TPS0 - TPS2

TPK0 - TPK15

Trace Synchronization Signal

Trace Clock

Trace ARM Pipeline Status

Trace Packet Port

ETM™

Output

Output

Output

Output

Comments

1.65 V to 1.95V and 3.0V to 3.6V

2.7V to 3.6V

1.08V to 1.32V

3.0V to 3.6V

3.0V to 3.6V

1.08V to 1.32V

Do not tie over VDDBU.

Accepts between 0V and VDDBU.

No pull-up resistor.

No pull-up resistor.

No pull-up resistor.

No pull-up resistor.

Pull-up resistor.

Pull-down resistor. Accepts

between 0V and VDDBU.

5

6062LS–ATARM–23-Mar-09

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