AT91R40008 ATMEL Corporation, AT91R40008 Datasheet - Page 13

• Manufacturer Part Number: AT91R40008
• Description: AT91 ARM Thumb Microcontroller
• Manufacturer: ATMEL Corporation

User Peripherals
USART: Universal
Synchronous/
Asynchronous Receiver
Transmitter
TC: Timer/Counter
1732DS–ATARM–03/04
The AT91R40008 microcontroller provides two identical, full-duplex, universal synchro-
nous/asynchronous receiver/transmitters.
Each USART has its own baud rate generator and two dedicated Peripheral Data Con-
troller channels. The data format includes a start bit, up to 8 data bits, an optional
programmable parity bit and up to 2 stop bits.
The USART also features a Receiver Time-out Register, facilitating variable length
frame support when it is working with the PDC, and a Time-guard Register, used when
interfacing with slow remote equipment.
The AT91R40008 microcontroller features a Timer/Counter block that includes three
identical 16-bit Timer/Counter channels. It is possible to independently program each
channel to perform a wide range of functions, including frequency measurement, event
counting, interval measurement, pulse generation, delay timing and pulse width
modulation.
The Timer/Counter can be used in Capture or Waveform mode, and all three counter
channels can be started simultaneously and chained together.
AT91R40008 - Summary
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