W88113C Datasheet, PDF (67/102 Pages) Winbond – ATAPI CD-ROM DECODER & CONTROLLER

W88113C
Bit 5: APDIRECT - Audio Direct Playback
Setting this bit high directs the original DSP signals to the audio playback pins.
Bit 4: APINS - Audio Reference Input Select
If this bit is set low, pin ACLK (46) is used as audio-playback reference clock. If this bit is
high, system clock is used as audio-playback reference block.
Bit 3,2: APIN[1:0] - Audio Input Reference Clock Setting
APIN[1]
0
0
1
1
APIN[0]
0
1
0
1
Input Reference Clock
8.4672MHz
16.9344MHz
33.8688MHz
67.7376MHz
The value in these registers should be properly set according to the audio-playback reference
clock before enable APEN (90h.7).
Bit 1,0: APOUT[1:0] - Audio Data Output Setting
APOUT[1] APOUT[0]
0
0
0
1
1
0
1
1
Audio Data
Output Pin
No Output
ROEB/ASD1(84)
ASD0(58)
RD8/ASD2(86)
Pin 6
tri-state
ABCK
Pin 13
CLKO
ALRCK
When APOUT1-0 are set zero, no output is generated from pin ABCK (6) and pin
CLKO/ALRCK (13) is used as left-right clock output. When APOUT1-0 are set not zero, flag
APIb (01h.r2) becomes low whenever one block audio-playback is finished.
Setting APIC (99h.0) high tri-state the associated audio-playback output pin, including
ALRCK, ABCK and ADAT, with weak pull-up.
APFMT - Audio Playback Format Register - (read/write 91h)
APFMT7-0
000xx111h
Audio Data Format
Toshiba
001xx100h
101xx011h
110xx011h
Sanyo
Sony 48-bit slot
Philip
- 63 -
Publication Release Date: Mar. 1999
Revision 0.61