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參數(shù)資料
| 型號(hào)： | W88112F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類(lèi)： | 存儲(chǔ)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(yè)數(shù)： | 13/64頁(yè) |
| 文件大小： | 466K |
| 代理商： | W88112F |
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W88111AF/W88112F
Preliminary/Confidential
ATAPI CD-ROM Decoder & Controller
This specification is subject to change without notice.
Publication Release Date: Aug, 1996
Preliminary/ Confidential Revision A0.1
- 13 -
Bits 4, 3, 2: Reserved
Bit 1: DTEN - Data Transfer Enable
Set DTEN high enables the data transfer logic. This bit should be set before any of the following
data transfers is triggered:
Host write to the Packet FIFO
Host read from external RAM
Host read from DF0 to DF7
In order to reduce the interference of microprocessor, DTEN is also automatically enabled during
the following operation:
Trigger ADTT(17h.2)
Host issues ATAPI Packet Command(A0h) while APKTEN(18h.7) is enabled and drive is
selected
Bit 0: Reserved
INTREA - Interrupt Reason Register - (read 01h)
Bit 7: PFNEb - Packet FIFO Not Empty Interrupt Flag
This bit becomes active-low after Packet FIFO receives any data issued by the host through
ATAPI Data port. UINTb(pin 36) is activated when PFNEb becomes active-low if PFNEEN(01h.7)
is enabled. PFNEb is deactivated after the last byte is read by microprocessor through register
PFAR(00h).
Bit 6: TENDb - Transfer End Interrupt Flag
This bit becomes active-low at the end of the following data transfers:
Host writes to the Packet FIFO
Host read from external RAM
Host read from registers DF0(40h) to DF7(47h)
Flags TDIR(30h.5) and FPKT(30h.1) can be used to determine which type of transfer end occurs.
UINTb(pin36) is activated when TENDb becomes active-low if TENDEN(01h.6) is enabled.
Writing any value to register TACK(07h) deactivates this flag.
Bit 5: SRIb - Sector Ready Interrupt Flag
This bit is used to indicate that one sector is ready to be accessed. Reading register STAT3(0Fh)
deactivates SRIb.
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| W88113C | ATAPI CD-ROM DECODER & CONTROLLER |
| W88113CD | ATAPI CD-ROM DECODER & CONTROLLER |
| W88113CF | ATAPI CD-ROM DECODER & CONTROLLER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W88113C | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:ATAPI CD-ROM DECODER & CONTROLLER |
| W88113CD | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:ATAPI CD-ROM DECODER & CONTROLLER |
| W88113CF | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:ATAPI CD-ROM DECODER & CONTROLLER |
| W88611P | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:VCD 4X RF AMP/DIGITAL SERVO & DSP |
| W88631F | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:VCD 4X RF AMP/DIGITAL SERVO & DSP |
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