AT91M40800-33AU データシートの表示（PDF） - Atmel Corporation
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AT91M40800-33AU Datasheet PDF : 18 Pages
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5.2.2
The Watchdog (WD) can be used to prevent system lock-up if the software becomes trapped in
a deadlock.
The Special Function (SF) module integrates the Chip ID, the Reset Status and the Protect
registers.
User Peripherals
Two USARTs, independently configurable, enable communication at a high baud rate in syn-
chronous or asynchronous mode. The format includes start, stop and parity bits and up to 8 data
bits. Each USART also features a Timeout and a Time Guard register, facilitating the use of the
two dedicated Peripheral Data Controller (PDC) channels.
The 3-channel, 16-bit Timer Counter (TC) is highly-programmable and supports capture or
waveform modes. Each TC channel can be programmed to measure or generate different kinds
of waves, and can detect and control two input/output signals. The TC has also three external
clock signals.
6. Associated Documentation
The AT91M40800 is part of the AT91x40 Series microcontrollers, a member of the Atmel AT91 16/32-bit microcontroller
family which is based on the ARM7TDMI processor core. Table 6-1 contains details of associated documentation for further
reference.
Table 6-1. Associated Documentation
Product
Information
Internal architecture of processor
ARM/Thumb instruction sets
Embedded in-circuit-emulator
External memory interface mapping
Peripheral operations
Peripheral user interfaces
AT91M40800
DC characteristics
Power consumption
Thermal and reliability considerations
AC characteristics
Product overview
Ordering information
Packaging information
Soldering profile
Document Title
ARM7TDMI (Thumb) Datasheet
AT91x40 Series Datasheet
AT91M40800 Electrical Characteristics
AT91M40800 Summary Datasheet (this document)
6 AT91M40800
1348FS–ATARM–13-Apr-06
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