Samsung S3C2451X User Manual page 707

S3C2451X RISC MICROPROCESSOR
28
OVERVIEW
The S3C2451X has two ports of PCM Audio Interface. The PCM Audio Interface module provides PCM bi-
directional serial interface to an external Codec.
FEATURE
− Mono, 16bit PCM, 2 ports 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
SIGNALS
Name
PCM0_SCLK
PCM1_SCLK
PCM0_FSYNC
PCM1_FSYNC
PCM0_SDI
PCM1_SDI
PCM0_SDO
PCM1_SDO
PCM0_CDCLK
PCM1_CDCLK
PCM AUDIO INTERFACE
Direction
Output Serial shift clock
Output Serial data indicator and synchronizer
Output Serial PCM input data
Output Serial PCM output data
Input Optional External Clock source
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Description
PCM AUDIO INTERFACE
28-1