AT91F40816 Datasheet, PDF (17/22 Pages) ATMEL Corporation – ARM Thumb Microcontrollers

User Peripherals
USART: Universal
Synchronous/
Asynchronous Receiver
Transmitter
TC: Timer Counter
AT91F40816
The AT91F40816 provides two identical, full-duplex, universal synchronous/asynchro-
nous 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 interfac-
ing with slow remote equipment.
The AT91F40816 features a Timer Counter block that includes three identical 16-bit
timer counter channels. Each channel can be independently programmed 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.
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