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S3C6400 RISC MICROPROCESSOR
AC97 CONTROLLER SPECIAL REGISTERS
AC97 SPECIAL FUNCION REGISTER SUMMARY
Register
AC_GLBCTRL
AC_GLBSTAT
AC_CODEC_CMD
AC_CODEC_STAT
AC_PCMADDR
AC_MICADDR
AC_PCMDATA
AC_MICDATA
AC97 GLOBAL CONTROL REGISTER (AC_GLBCTRL)
This is the global register of the AC97 controller. There are interrupt control registers, DMA control registers,
AC-Link control register, data transmission control register and related reset control register.
Register
AC_GLBCTRL
AC_GLBCTRL
-
Codec ready interrupt clear
PCM out channel underrun
interrupt clear
PCM in channel overrun
interrupt clear
Mic in channel overrun
interrupt clear
PCM out channel threshold
interrupt clear
PCM in channel threshold
interrupt clear
MIC in channel threshold
interrupt clear
-
Address
R/W
0x7F001000
R/W
0x7F001004
R
0x7F001008
R/W
0x7F00100C
R
0x7F001010
R
0x7F001014
R
0x7F001018
R/W
0x7F00101C
R/W
Address
R/W
0x7F001000
R/W
Bit
[31]
Reserved.
[30]
1 : Interrupt clear(write only)
[29]
1 : Interrupt clear(write only)
[28]
1 : Interrupt clear(write only)
[27]
1 : Interrupt clear(write only)
[26]
1 : Interrupt clear(write only)
[25]
1 : Interrupt clear(write only)
[24]
1 : Interrupt clear(write only)
[23]
Reserved
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
AC97 Global Control Register
AC97 Global Status Register
AC97 Codec Command Register
AC97 Codec Status Register
AC97 PCM Out/In Channel FIFO Address
Register
AC97 Mic In Channel FIFO Address Register
AC97 PCM Out/In Channel FIFO Data Register
AC97 MIC In Channel FIFO Data Register
Description
AC97 Global Control Register
Description
AC97 CONTROLLER
Reset Value
0x00000000
0x00000001
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
Reset Value
0x000000
Initial State
0
0
0
0
0
0
0
0
0
35-11
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