AT91SAM9261 datasheet(37/43 Pages) ATMEL

37 / 43 page

6062KS–ATARM–15-Jan-09

AT91SAM9261 Preliminary

• Test Modes

– Remote Loopback, Local Loopback, Automatic Echo

10.10 Synchronous Serial Controller

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

(with CODECs in Master or Slave Modes, I

2S, TDM Buses, Magnetic Card Reader and

more).

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

• 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.

10.11 Timer Counter

• 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

• Two global registers that act on all three TC Channels

10.12 Multimedia Card Interface

• 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

• Each MCI has two slots, each supporting

– One slot for one MultiMedia Card bus (up to 30 cards) or

– One SD Memory Card

• Support for stream, block and multi-block data read and write

AT91SAM9261 Datasheet(PDF) 37 Page - ATMEL Corporation