User's Manual

AC97 CONTROLLER S3C2450X RISC MICROPROCESSOR
27-16
8.7 AC97 MIC IN CHANNEL FIFO ADDRESS REGISTER (AC_MICADDR)
To index the internal MIC-in FIFO address.
Register Address R/W Description Reset Value
AC_MICADDR 0x5B000014 R AC97 MIC In Channel FIFO Address Register 0x00000000
AC_MICADDR Bit Description Initial State
- [31:20] Reserved. 0000
Read address [19:16] MIC in channel FIFO read address 0000
- [15:4] Reserved. 0x000
Write address [3:0] MIC in channel FIFO write address 0000
8.8 AC97 PCM OUT/IN CHANNEL FIFO DATA REGISTER (AC_PCMDATA)
This is PCM out/in channel FIFO data register.
Register Address R/W Description Reset Value
AC_PCMDATA 0x5B000018 R/W AC97 PCM Out/In Channel FIFO Data Register 0x00000000
AC_PCMDATA Bit Description Initial State
Right data
[31:16]
PCM out/in right channel FIFO data
Read = PCM in right channel
Write = PCM out right channel
0x0000
Left data
[15:0]
PCM out/in left channel FIFO data
Read = PCM in left channel
Write = PCM out left channel
0x0000
8.9 AC97 MIC IN CHANNEL FIFO DATA REGISTER (AC_MICDATA)
This is MIC-in channel FIFO data register.
Register Address R/W Description Reset Value
AC_MICDATA 0x5B00001C R AC97 MIC In Channel FIFO Data Register 0x00000000
AC_MICDATA Bit Description Initial State
- [31:16] Reserved 0x0000
Mono data [15:0] MIC in mono channel FIFO data 0x0000