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參數資料
型號: W88113CF
廠商: WINBOND ELECTRONICS CORP
元件分類: 存儲控制器/管理單元
英文描述: ATAPI CD-ROM DECODER & CONTROLLER
中文描述: IDE COMPATIBLE, CD ROM CONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數: 48/102頁
文件大?。?/td> 573K
代理商: W88113CF
W88113C
Publication Release Date: Mar. 1999
- 44 - Revision 0.61
Disable
pin DASPb (37)
to high-impedance state if
DASPSS (3Fh.0)
is low. Negates
pin
DASPb
(37) if
DASPSS (3Fh.0)
is high.
CKSTP (19h.7)
0
Activates host interrupt to the microprocessor if
HIIEN (2Eh.w7)
is high.
HIRQ (2Eh.w3)
0
Host interrupt is cleared by read register ATCMD (37h) or write
CLRBSY (20h.4)
. SRST is
de-activated by read register
MISS1 (2Fh,r)
after SRST is set to low by host.
ATAC - ATAPI Command
If the drive is selected, this bit becomes high when any command is written to the ATAPI
Command Register except the following opcode are received.
opcode is 90h
opcode is 08h and either
ARST1 (2Fh.w3)
or
ARSTIEN (2Fh.w1)
is enabled
opcode is A0h and
APKTEN (18h.w7)
is high
ATAC is de-activated by the following:
Chip reset or host reset
Reading register ATCMD (37h)
Writing 1 to
CLRBSY (20h.4)
DIAG - Execute Drive Diagnostics Command
This bit becomes high if Execute Drive Diagnostics Command (opcode 90h) has been written
to either master or slave drive. Meanwhile, the following events will be executed:
BSY(37h.7)
1
PDIAGEN (20h.w6)
0 and disables pin PDIAGb to high-impedance state
CKSTP (19h.7)
0
ATAPI Error Register
01h
ATAPI Feature Register
00h
ATAPI Interrupt Reason Register
01h
ATAPI SAM Tag Byte
01h
ATAPI Byte Counter Register Low/High
00h
ATAPI Drive Select Register
00h
Clear ATAPI Status Register except bit BSY and SERVICE
Activates host interrupt to the microprocessor if
HIIEN (2Eh.w7)
is enabled
Bit 6:
Bit 5:
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