Preliminary
PCM AUDIO INTERFACE
S3C2451X RISC MICROPROCESSOR
28-10
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.
The PCM Tx FIFO REGISTER
Register Address
R/W
Description
Reset
Value
PCM_TXFIFO0 0x5C000008 R/W
PCM0 interface Transmit FIFO data
register
0x00010000
PCM_TXFIFO1 0x5C000108 R/W
PCM1 interface Transmit FIFO data
register
0x00010000
The bit definitions for the PCM_TXFIFO Register are shown below:
PCM_TXFIFOn Bit
Description
Initial
State
Reserved [31:17]
Reserved
TXFIFO_DVALID
[16]
TXFIFO data is valid
Write: don’t care
Read: TXFIFO read data valid
1: valid
0: invalid (probably read an empty fifo)
1
TXFIFO_DATA
[15:0]
Write: Write PCM data to TXFIFO
NOTE:
the TXFIFO is read by the PCM serial shift engine
Read: Read PCM data from TXFIFO for supporting debug
TXFIFO
0