AT91SAM7S161 datasheet(33/50 Pages) ATMEL

Part #	AT91SAM7S161

Description	AT91 ARM Thumb-based Microcontrollers

PDF	50 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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33 / 50 page

6175GS–ATARM–24-Dec-08

AT91SAM7S Series Summary

9.9

PIO Controller

• One PIO Controller, controlling 32 I/O lines (21 for AT91SAM7S32/16)

• Fully programmable through set/clear registers

• Multiplexing of two peripheral functions per I/O line

• For each I/O line (whether assigned to a peripheral or used as general-purpose I/O)

– Input change interrupt

– Half a clock period glitch filter

– Multi-drive option enables driving in open drain

– Programmable pull-up on each I/O line

– Pin data status register, supplies visibility of the level on the pin at any time

• Synchronous output, provides Set and Clear of several I/O lines in a single write

9.10

Voltage Regulator Controller

The aim of this controller is to select the Power Mode of the Voltage Regulator between Normal

Mode (bit 0 is cleared) or Standby Mode (bit 0 is set).

AT91SAM7S161 Datasheet(PDF) 33 Page - ATMEL Corporation