STAC9708 Datasheet, PDF (32/56 Pages) List of Unclassifed Manufacturers – Multi-Channel AC97 Codec With Multi-Codec Option

SigmaTel, Inc.
Preliminary
STAC9708/11
MC1, MC0
0, 0
0, 1
1, 0
1, 1
Table 18. Multi-Channel Programming Register
PCM OUT
LEFT
Slot 3
Slot 7
Slot 6
Slot 6
PCM OUT
RIGHT
Slot 4
Slot 8
Slot 9
Slot 9
PCM2
LEFT
Slot 7
Slot 6
Slot 7
Slot 10
PCM2
RIGHT
Slot 8
Slot 9
Slot 8
Slot 11
4.4.10 Powerdown Control/Status Register (Index 26h)
This read/write register is used to program powerdown states and monitor subsystem readiness. The
lower half of this register is read only status, a “1” indicating that the subsection is “ready”. Ready is
defined as the subsection’s ability to perform in its nominal state. When this register is written, the bit
values that come in on AC-Link will have no effect on read only bits 0-7. Bit 15,
When the AC-Link “Codec Ready” indicator bit (SDATA_IN slot 0, bit 15) is a 1, it indicates that the
AC-Link and AC'97 control and status registers are in a fully operational state. The AC'97 controller
must further probe this Powerdown Control/Status Register to determine exactly which subsections, if
any are ready.
Table 19. Powerdown Status Registers
BIT
EAPD
REF
ANL
DAC
ADC
FUNCTION
External Amplifier Power Down
VREF’s up to nominal level
Analog mixers, etc. ready
DAC section ready to playback data
ADC section ready to playback data
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10/02/98