Samsung S3C6400X User Manual page 1074

AC97 CONTROLLER
Data
Note: If you want to read data from AC97 codec register via the AC_CODDEC_STAT register, you must follow
the following steps.
1. Write command address and data on the AC_CODEC_CMD register with Bit[23] =1.
2. Have a delay time.
3. Read command address and data from AC_CODEC_STAT register.
AC97 PCM OUT/IN CHANNEL FIFO ADDRESS REGISTER (AC_PCMADDR)
To index the internal PCM FIFOs address.
Register Address
AC_PCMADDR 0x7F001010
AC_PCMADDR
-
Out read address
-
In read address
-
Out write address
-
In write address
AC97 MIC IN CHANNEL FIFO ADDRESS REGISTER (AC_MICADDR)
To index the internal MIC-in FIFO address.
Register
AC_MICADDR
AC_MICADDR
-
Read address
-
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
35-14
Specifications and information herein are subject to change without notice.
[15:0] Codec status data
R/W
R AC97 PCM Out/In Channel FIFO Address Register
Bit
[31:28] Reserved.
[27:24] PCM out channel FIFO read address
[23:20] Reserved.
[19:16] PCM in channel FIFO read address
[15:12] Reserved.
[11:8] PCM out channel FIFO write address
[7:4] Reserved.
[3:0] PCM in channel FIFO write address
Address R/W
0x7F001014 R
Bit
[31:20] Reserved.
[19:16] MIC in channel FIFO read address
[15:4] Reserved.
Description
Description
Description
AC97 Mic In Channel FIFO Address Register
Description
S3C6400 RISC MICROPROCESSOR
0x0000
Reset Value
0x00000000
Initial State
Reset Value
0x00000000
Initial State
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0x000