AT91SAM7X128(2006_02) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM7X128
(Rev.:2006_02)

AT91 ARM® Thumb®-based Microcontrollers

Atmel Corporation 

• Embedded Flash Controller

– Embedded Flash interface, up to three programmable wait states

– Prefetch buffer, buffering and anticipating the 16-bit requests, reducing the required

wait states

– Key-protected program, erase and lock/unlock sequencer

– Single command for erasing, programming and locking operations

– Interrupt generation in case of forbidden operation

8.4 Peripheral DMA Controller

• Handles data transfer between peripherals and memories

• Thirteen channels

– Two for each USART

– Two for the Debug Unit

– Two for the Serial Synchronous Controller

– Two for each Serial Peripheral Interface

– One for the Analog-to-digital Converter

• Low bus arbitration overhead

– One Master Clock cycle needed for a transfer from memory to peripheral

– Two Master Clock cycles needed for a transfer from peripheral to memory

• Next Pointer management for reducing interrupt latency requirements

14 AT91SAM7X256/128 Preliminary

6120D–ATARM–02-Feb-06

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