Ac-Link Controller; Features - Toshiba TMPR4937 Manual

14. AC-link Controller

14.1 Features

ACLC, AC-link controller module can be connected to audio and/or modem CODECs described in the
"Audio CODEC '97 Revision 2.1" (AC'97) defined by Intel and can operate them. Refer to the following
Web site for more information regarding the AC'97 specification.
http://developer.intel.com/ial/scalableplatforms/audio/
Its features are summarized as follows.
•
Up to two CODECs are supported.
•
AC'97 compliant CODEC register access protocol is supported.
•
CODEC register access completion is recognized by polling or interrupt.
•
Recording and playback of 16-bit PCM Left&Right channels are supported.
•
Recording can be selected from PCM L&R or Mic.
•
Playback of 16-bit Surround, Center, and LFE channels is supported.
•
Variable Rate Audio recording is supported.
•
Variable Rate Audio playback is supported.
•
Line 1 and GPIO slots for Modem CODEC are supported.
•
AC-link low-power mode, wake-up, and warm-reset are supported
•
Sample-data I/O via DMA transfer is supported.
Chapter 14 AC-link Controller
14-1