Datasheet Microchip AT91SAM7SE256 — 数据表

ARM7TDMI
(Rev 3) Technical Reference Manual Copyright В© 1994-2001. All rights reserved.
ARM DDI 0029G ARM7TDMI
Technical Reference Manual
Copyright В© 1994-2001. All rights reserved.
Release Information
Change history
Date Issue Change October 1994 A Released. December 1994 B First formal release. December 1994 C Review comments added. March 1995 D Technical changes. August 1995 E Review comments added. November 2000 F SGML, new layout, new title, incorporation of errata, and technical changes. April 2001 G Addition of timing parameters and editorial changes. Proprietary Notice
Words and logos marked with В® or в„ў are registered trademarks or trademarks owned by ARM Limited. Other
brands and names mentioned herein may be the trademarks of their respective owners.
Neither the whole nor any part of the information contained in, or the product described in, this document
may be adapted or reproduced in any material form except with the prior written permission of the copyright
holder.
The product described in this document is subject to continuous developments and improvements. All
particulars of the product and its use contained in this document are given by ARM in good faith. However,
all warranties implied or expressed, including but not limited to implied warranties of merchantability, or
fitness for purpose, are excluded.
This document is intended only to assist the reader in the use of the product. ARM Limited shall not be liable
for any loss or damage arising from the use of any information in this document, or any error or omission in
such information, or any incorrect use of the product.
Figure B-2 on page B-5 reprinted with permission IEEE Std 1149.1-1990. IEEE Standard Test Access Port
and Boundary Scan Architecture Copyright 1994-2001, by IEEE. The IEEE disclaims any responsibility or
liability resulting from the placement and use in the described manner. ii Copyright В© 1994-2001. All rights reserved. ARM DDI 0029G Confidentiality Status …

Features Incorporates the ARM7TDMI® ARM® Thumb® Processor – High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
Internal High-speed Flash
– 512 Kbytes, Organized in Two Contiguous Banks of 1024 Pages of 256 Bytes Dual
Plane (SAM7SE512)
– 256 Kbytes (SAM7SE256) Organized in One Bank of 1024 Pages of 256 Bytes
Single Plane (SAM7SE256)
– 32 Kbytes (SAM7SE32) Organized in One Bank of 256 Pages of 128 Bytes Single
Plane (SAM7SE32)
– Single Cycle Access at Up to 30 MHz in Worst Case Conditions
– Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed
– Page Programming Time: 6 ms, Including Page Auto-erase, Full Erase Time: 15 ms
– 10,000 Erase Cycles, 10-year Data Retention Capability, Sector Lock Capabilities,
Flash Security Bit
– Fast Flash Programming Interface for High Volume Production
32 Kbytes (SAM7SE512/256) or 8 Kbytes (SAM7SE32) of Internal
High-speed SRAM, Single-cycle Access at Maximum Speed
One External Bus Interface (EBI)
– Supports SDRAM, Static Memory, Glueless Connection to CompactFlash® and
ECC-enabled NAND Flash
Memory Controller (MC) …

Features Incorporates the ARM7TDMI® ARM® Thumb® Processor – High-performance 32-bit RISC Architecture
– High-density 16-bit Instruction Set
– Leader in MIPS/Watt
– EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
Internal High-speed Flash
– 512 Kbytes, Organized in Two Contiguous Banks of 1024 Pages of 256 Bytes Dual
Plane (SAM7SE512)
– 256 Kbytes (SAM7SE256) Organized in One Bank of 1024 Pages of 256 Bytes
Single Plane (SAM7SE256)
– 32 Kbytes (SAM7SE32) Organized in One Bank of 256 Pages of 128 Bytes Single
Plane (SAM7SE32)
– Single Cycle Access at Up to 30 MHz in Worst Case Conditions
– Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed
– Page Programming Time: 6 ms, Including Page Auto-erase, Full Erase Time: 15 ms
– 10,000 Erase Cycles, 10-year Data Retention Capability, Sector Lock Capabilities,
Flash Security Bit
– Fast Flash Programming Interface for High Volume Production
32 Kbytes (SAM7SE512/256) or 8 Kbytes (SAM7SE32) of Internal
High-speed SRAM, Single-cycle Access at Maximum Speed
One External Bus Interface (EBI)
– Supports SDRAM, Static Memory, Glueless Connection to CompactFlash® and
ECC-enabled NAND Flash
Memory Controller (MC) …