W88113C Datasheet, PDF (24/102 Pages) Winbond – ATAPI CD-ROM DECODER & CONTROLLER

W88113C
Bit 1:
Bit 0:
MCRQ - Mode Byte Check Request
When this bit is high, ECC logic will check the 4th header byte with the setting of M2RQ
(0Bh.3) to determine if ECC correction to be performed.
SHDEN - Subheader Switch Enable
When this bit is high, registers HEAD (04h-07h,r) are used to provide subheader bytes.
disc format
CD-DA
yellow book Mode 1
yellow book Mode 2
CD-ROM XA M2F1
CD-ROM XA M2F2
SIEN
(0Bh.7)
1
1
1
1
1
SDEN
(0Bh.6)
0
1
1
1
1
DESCRE
N (0Bh.5)
0
1
1
1
1
CWEN
(0Bh.4)
0
1
0
1
x
M2RQ
(0Bh.3)
0
0
0
1
1
F2RQ
(0Bh.2)
0
0
0
0
1
STAT0 - Status Register 0 - (read 0Ch)
Bit 7: CRCOK - Cyclic Redundancy Check OK
This bit is used to indicate that the Cyclic Redundancy Check of the latest available sector is
passed.
Bit 6: ILSYN - Illegal Sync Pattern
If SDEN (0Bh.w6) is high, this bit becomes high when a sync pattern is detected less than
2352 bytes after last sync pattern was detected/inserted.
Bit 5: NOSYN - No Sync Pattern
If SIEN (0Bh.w7) is high, this bit becomes high when a sync pattern is not detected at 2352
bytes after last sync pattern was detected/inserted.
Bit 4: LBKF - Long Block Flag
If SIEN (0Bh.w7) is low, this bit becomes high when a sync pattern is not detected at 2352
bytes after last sync pattern was detected/inserted.
Bit 3: WSHORT - Word Short
This bit becomes high when the incoming serial data rate is too high to be processed.
Bit 2: SBKF - Short Block Flag
If SDEN (0Bh.w6) is low, this bit becomes high when a sync pattern is detected less than
2352 bytes after last sync pattern was detected/inserted.
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Publication Release Date: Mar. 1999
Revision 0.61