Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK データシート

 1003

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

The AC97 Controller is the hardware implementation of the AC97 digital controller (DC’97) compliant with AC97
Component Specification 2.2. The AC97 Controller communicates with an audio codec (AC97) or a modem codec
(MC’97) via the AC-link digital serial interface. All digital audio, modem and handset data streams, as well as con-
trol (command/status) informations are transferred in accordance to the AC-link protocol.

The AC97 Controller features a Peripheral DMA Controller (PDC) for audio streaming transfers. It also supports
variable sampling rate and four Pulse Code Modulation (PCM) sample resolutions of 10, 16, 18 and 20 bits.

• Compatible with AC97 Component Specification V2.2

• Capable to Interface with a Single Analog Front end

• Three independent RX Channels and three independent TX Channels

– One RX and one TX channel dedicated to the AC97 Analog Front end control 

– One RX and one TX channel for data transfers, associated with a PDC

– One RX and one TX channel for data transfers with no PDC

• Time Slot Assigner allowing to assign up to 12 time slots to a channel

• Channels support mono or stereo up to 20 bit sample length

– Variable sampling rate AC97 Codec Interface (48KHz and below)