AT91RM9200(2003) Ver la hoja de datos (PDF) - Atmel Corporation

Número de pieza

componentes Descripción

Fabricante

AT91RM9200
(Rev.:2003)

ARM920T™- based Microcontroller

Atmel Corporation 

AT91RM9200

Serial

Synchronous

Controller

Timer Counter

MultiMedia Card

Interface

1768B–ATARM–08/03

– By 8 or by-16 over-sampling receiver frequency

– Optional hardware handshaking RTS-CTS

– Optional modem signal management DTR-DSR-DCD-RI

– Receiver time-out and transmitter timeguard

– Optional Multi-drop Mode with address generation and detection

• RS485 with driver control signal

• ISO7816, T = 0 or T = 1 Protocols for interfacing with smart cards

– NACK handling, error counter with repetition and iteration limit

• IrDA modulation and demodulation

– Communication at up to 115.2 Kbps

• Test Modes

– Remote Loopback, Local Loopback, Automatic Echo

• Connection of two Peripheral Data Controller channels (PDC)

– Offers buffer transfer without processor intervention

• Provides serial synchronous communication links used in audio and telecom applications

• Contains an independent receiver and transmitter and a common clock divider

• Interfaced with two PDC channels (DMA access) to reduce processor overhead

• Offers a configurable frame sync and data length

• Receiver and transmitter can be programmed to start automatically or on detection of

different event on the frame sync signal

• Receiver and transmitter include a data signal, a clock signal and a frame synchronization

signal

• Three 16-bit Timer Counter Channels

• Wide range of functions including:

– Frequency Measurement

– Event Counting

– Interval Measurement

– Pulse Generation

– Delay Timing

– Pulse Width Modulation

– Up/down Capabilities

• Each channel is user-configurable and contains:

– Three external clock inputs

– Five internal clock inputs

– Two multi-purpose input/output signals

• Internal interrupt signal

• Two global registers that act on all three TC Channels

• Compatibility with MultiMedia Card Specification Version 2.2

• Compatibility with SD Memory Card Specification Version 1.0

• Cards clock rate up to Master Clock divided by 2

• Embedded power management to slow down clock rate when not used

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