Datasheet Microchip AT91SAM9XE256 — 数据表

ARM926EJ-S
(r0p4/r0p5) Technical Reference Manual Copyright © 2001-2003 ARM Limited. All rights reserved.
ARM DDI0198D ARM926EJ-S
Technical Reference Manual
Copyright © 2001-2003 ARM Limited. All rights reserved.
Release Information
Change history
Date Issue Change 26 September 2001 A First release 29 January 2002 B Second release 5 December 2003 C Third release. Includes r0p5 changes. Defects corrected. 26 January 2004 D Fourth release. Includes r0p4. Technically identical to previous release. Proprietary Notice
Words and logos marked with ® or ™ are registered trademarks or trademarks owned by ARM Limited, except
as otherwise stated below in this proprietary notice. 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
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Confidentiality Status
This document is Open Access. This document has no restriction on distribution. …

SAM9XE Series
Atmel | SMART ARM-based Embedded MCU
DATASHEET Description
The AtmelВ® | SMART SAM9XE microcontroller series is based on the integration
of an ARM926EJ-Sв„ў processor with fast ROM, RAM and Flash, and a wide
range of peripherals.
The embedded Flash memory can be programmed in-system via the JTAG-ICE
interface or via a parallel interface on a production programmer prior to mounting.
Built-in lock bits, a security bit and MMU protect the firmware from accidental
overwrite and preserve its confidentiality.
The SAM9XE series embeds an Ethernet MAC, one USB Device Port, and a USB
Host Controller. It also integrates several standard peripherals, including six
UARTs, SPI, TWI, Timer Counters, Synchronous Serial Controller, ADC and a
MultiMedia/SD Card Interface.
The SAM9XE system controller includes a reset controller capable of managing
the power-on sequence of the microcontroller and the complete system. Correct
device operation can be monitored by a built-in brownout detector and a watchdog
running off an integrated RC oscillator.
The SAM9XE series architecture includes a 6-layer matrix, allowing a maximum
internal bandwidth of six 32-bit buses. It also features an External Bus Interface
capable of interfacing with a wide range of memory devices.
The pinout and ball-out are fully compatible with the Atmel | SMART SAM9260
eMPU with the exception that the pin BMS is replaced by the pin ERASE. …