參數(shù)資料
型號: FDC37C665IR
廠商: SMSC Corporation
英文描述: 3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support
中文描述: 3 / 5伏先進的高性能多模并口超級I / O軟盤與Infranred支持磁盤控制器
文件頁數(shù): 13/162頁
文件大小: 562K
代理商: FDC37C665IR
13
DESCRIPTION OF PIN FUNCTIONS
PIN NO.
75
NAME
SYMBOL
nERR
BUFFER
TYPE
I
DESCRIPTION
nError
A low on this input from the printer indicates
that there is a error condition at the printer.
Bit 3 of the Printer Status register reads the
nERR input. Refer to Parallel Port
description for use of this pin in ECP and
EPP mode.
The bi-directional parallel data bus is used
to transfer information between CPU and
peripherals.
In EPP mode, this pin is pulled low to
extend the read/write command. This pin
has an internal pull-up.
71-68
66-63
Port Data
PD0-PD7
I/OP12
100
IOCHRDY
IOCHRDY
OD12P
IDE
O2
23
nIDE Low Byte
Enable
nIDEENLO
This active low signal is used in both the XT
and AT mode. In the AT mode, this pin is
active when the IDE is enabled and the I/O
address is accessing 1F0H-1F7H and
3F6H-3F7H in primary address mode or
170H-177H and 376H,377H in secondary
address mode. In the XT mode, this signal
is active for accessing 320H-323H, 8 bit
programmed I/O or DMA.
This signal is active low only in the AT
mode, and when IO16CSB is also active.
The I/O addresses for which this pin reacts
are 1F0H-1F7H in primary address mode or
170H-177H in secondary address mode.
This pin is not used in XT mode.
This is the Hard Disk Chip select
corresponding to addresses 1F0H-1F7H in
primary address mode or 170H-177H in
secondary address mode in the AT mode
and addresses 320H-323H in the XT mode.
This is the Hard Disk Chip select
corresponding to 3F6H,3F7H for primary
address mode or 376H,377H for secondary
address mode in the AT mode and
addresses 3F6H,3F7H in the XT mode.
24
nIDE High Byte
Enable
nIDEENHI
O2
25
nHard Disk Chip
Select
nHDCS0
O12
26
nHard Disk Chip
Select
nHDCS1
O12
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相關代理商/技術參數(shù)
參數(shù)描述
FDC37C665IRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述:
FDC37C666GT 制造商:SMSC 制造商全稱:SMSC 功能描述:High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
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FDC37C669_07 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669FRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk