Chapter 25 Pcm Audio Interface; Overview; Feature; Signals - Samsung S3C2416 User Manual

S3C2416X RISC MICROPROCESSOR
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1 OVERVIEW

The S3C2416 has one port of PCM Audio Interface. The PCM Audio Interface module provides PCM bi-
directional serial interface to an external Codec.

1.1 FEATURE

• Mono, 16bit PCM, 1 port audio interface.
• Master mode only, this block always sources the main serial clock
• The sources of PCM clock are based on an internal PCLK or an External Clock
• Input (16bit 32depth) and output(16bit 32depth) FIFOs to buffer data
• DMA interface for Tx and/or Rx

1.2 SIGNALS

Name
PCM_SCLK
PCM_FSYNC
PCM_SDI
PCM_SDO
PCM_CDCLK

PCM AUDIO INTERFACE

Direction
Output
Output
Output
Output
Input
Serial shift clock
Serial data indicator and synchronizer
Serial PCM input data
Serial PCM output data
Optional External Clock source
PCM AUDIO INTERFACE
Description
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