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參數(shù)資料
| 型號(hào)： | 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(jìn)的高性能多模并口超級(jí)I / O軟盤(pán)與Infranred支持磁盤(pán)控制器 |
| 文件頁(yè)數(shù)： | 14/162頁(yè) |
| 文件大?。?/td> | 562K |
| 代理商： | FDC37C665IR |
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14
DESCRIPTION OF PIN FUNCTIONS
PIN NO.
27
NAME
SYMBOL
nIOCS16
BUFFER
TYPE
I
DESCRIPTION
nI/O 16 Bit
Indicator
nHDACK
I
This input indicates, in AT mode only, when
16 bit transfers are to take place. This
signal is generated by the hard disk
interface. Logic "0" = 16 bit mode; logic "1"
= 8 bit mode.
In the XT mode, this is the Hard Disk
Controller DMA Acknowledge, low active.
IDE data bit 7 in the AT mode. IDED7
transfers data at I/O addresses 1F0H-1F7H
(R/W), 3F6 (R/W), 3F7(W). IDED7 should
be connected to IDE data bit 7. The
FDC37C665IR
functions
transferring data bit 7 between the IDE
device and the host. During I/O read of
3F7H, IDED7 is the FDC disk change bit. In
the XT mode, IDE7 is not used.
22
IDE Data Bit 7
IDED7
I/O12
as
a
buffer
MISCELLANEOUS
I
58
Power Good
PWRGD
FDC37C665IR (Motherboard Mode): This
input indicates that the power (V
CC
) is valid.
For device operation, PWRGD must be
active. When PWRGD is inactive, all inputs
to the FDC37C665IR are disconnected and
put in a low power mode, all outputs are put
into high impedance. The contents of all
registers are preserved as long as V
CC
has a
valid value. The driver current drain in this
mode drops to ISTBY - standby current.
This input has a weak pullup resistor to V
CC
.
The external connection for a parallel
resonant 24 MHz crystal. A CMOS
compatible oscillator is required if crystal is
not used.
24 MHz crystal. If an external clock is used,
this pin should not be connected. This pin
should not be used to drive any other
drivers.
I/O Interface supply pin (5 volt)
+3.3 volt supply pin.
Ground pin.
20
CLOCK 1
X1/CLK1
ICLK
21
CLOCK 2
X2/CLK2
OCLK
98
I/O Power
Power
Ground
V
IO
V
CC
GND
15,72
6,47,
67,95
相關(guān)PDF資料 |
PDF描述 |
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| FDC37C665GT | High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers |
| FDC37C666GT | High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers |
| FDC37C67X | ENHANCED SUPER I/O CONTROLLER WITH FAST IR |
| FDC37C957FR | ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS |
| FDC37M600 | ENHANCED SUPER I/O CONTROLLER WITH INFRARED SUPPORT |
相關(guān)代理商/技術(shù)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(chēng):SMSC 功能描述:High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers |
| FDC37C669 | 制造商:SMSC 制造商全稱(chēng):SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support |
| FDC37C669_07 | 制造商:SMSC 制造商全稱(chēng):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 |
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