AT91SAM7S256 ATMEL Corporation, AT91SAM7S256 Datasheet - Page 12

• Manufacturer Part Number: AT91SAM7S256
• Description: AT91 ARM THUMB-BASED MICROCONTROLLERS
• Manufacturer: ATMEL Corporation

Peripheral Data
Controller
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AT91SAM7S256 Summary Preliminary
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Handles data transfer between peripherals and memories
Eleven channels
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Low bus arbitration overhead
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Next Pointer management for reducing interrupt latency requirements
Two for each USART
Two for the Debug Unit
Two for the Serial Synchronous Controller
Two for the Serial Peripheral Interface
One for the Analog-to-digital Converter
One Master Clock cycle needed for a transfer from memory to peripheral
Two Master Clock cycles needed for a transfer from peripheral to memory
6117AS–ATARM–20-Oct-04