Samsung S3C2451X User Manual page 723

S3C2451X RISC MICROPROCESSOR
PCM FIFO STATUS REGISTER
The PCM_FIFO_STAT register is used to report FIFO status.
Register
PCM_FIFO_STAT0
PCM_FIFO_STAT1
The bit definitions for the PCM_FIFO_STATUS Register are shown below:
PCM_FIFO_STATn
Reserved
TXFIFO_COUNT
TXFIFO_EMPTY
TXFIFO_ALMOST_EMPTY
TXFIFO_FULL
TXFIFO_ALMOST_FULL
RXFIFO_COUNT
RXFIFO_EMPTY
RXFIFO_ALMOST_EMPTY
RX_FIFO_FULL
RX_FIFO_ALMOST_FULL
Address R/W
0x5C000018 R
0x5C000118 R
Bit
[31:20] Reserved
[19:14] TX FIFO data count(0 ~ 32).
[13] 1 : TXFIFO is empty
0 : TXFIFO is not empty
[12] 1 : TXFIFO is ALMOST_EMPTY
0 : TXFIFO is not ALMOST_EMPTY
[11] 1 : TXFIFO is full
0 : TXFIFO is not full
[10] 1 : TXFIFO is ALMOST_FULL
0 : TXFIFO is not ALMOST_FULL
[9:4] RX FIFO data count(0 ~ 32).
[3] 1 : RXFIFO is empty
0 : RXFIFO is not empty
[2] 1 : RXFIFO is ALMOST_EMPTY
0 : RXFIFO is not ALMOST_EMPTY
[1] 1 : RXFIFO is full
0 : RXFIFO is not full
[0] 1 : RXFIFO is ALMOST_FULL
0 : RXFIFO is not ALMOST_FULL
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
PCM0 FIFO Status
PCM1 FIFO Status
Description
PCM AUDIO INTERFACE
Reset Value
0x00000000
0x00000000
Initial State
0
0
0
0
0
0
0
0
0
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