AT91SAM7SE32(2008) 查看數據表（PDF） - Atmel Corporation

零件编号

产品描述 (功能)

生产厂家

AT91SAM7SE32
(Rev.:2008)

Product Description

Atmel Corporation 

AT91SAM7SE512/256/32 Preliminary Summary

• Main Oscillator frequency ranges between 3 and 20 MHz

• Main Oscillator can be bypassed

• PLL output ranges between 80 and 220 MHz

It provides SLCK, MAINCK and PLLCK.

Figure 9-2. Clock Generator Block Diagram

Clock Generator

Embedded

RC

Oscillator

Slow Clock

SLCK

XIN

XOUT

Main

Oscillator

Main Clock

MAINCK

PLLRC

PLL and

Divider

PLL Clock

PLLCK

Status Control

Power

Management

Controller

9.3 Power Management Controller

The Power Management Controller uses the Clock Generator outputs to provide:

• the Processor Clock PCK

• the Master Clock MCK

• the USB Clock UDPCK

• all the peripheral clocks, independently controllable

• three programmable clock outputs

The Master Clock (MCK) is programmable from a few hundred Hz to the maximum operating fre-

quency of the device.

The Processor Clock (PCK) switches off when entering processor idle mode, thus allowing

reduced power consumption while waiting for an interrupt.

31

6222ES–ATARM–04-Jan-08

Share Link: