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參數(shù)資料
| 型號(hào)： | FDC37C665GT |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 存儲(chǔ)控制器/管理單元 |
| 英文描述： | High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers |
| 中文描述： | 1 Mbps, IDE COMPATIBLE, FLOPPY DISK DRIVE CONTROLLER, PQFP100 |
| 封裝： | QFP-100 |
| 文件頁(yè)數(shù)： | 25/162頁(yè) |
| 文件大?。?/td> | 562K |
| 代理商： | FDC37C665GT |
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25
DIGITAL OUTPUT REGISTER (DOR)
Address 3F2 READ/WRITE
The DOR controls the drive select and motor
enables of the disk interface outputs. It also
contains the enable for the DMA logic and
contains a software reset bit. The contents of
the DOR are unaffected by a software reset.
The DOR can be written to at any time.
BIT 0 and 1 DRIVE SELECT
These two bit a are binary encoded for the four
drive selects DS0 -DS3, thereby allowing only
one drive to be selected at one time.
BIT 2 nRESET
A logic "0" written to this bit resets the Floppy
disk controller. This reset will remain active
until a logic "1" is written to this bit. This
software reset does not affect the DSR and CCR
registers, nor does it affect the other bits of the
DOR register. The minimum reset duration
required is 100ns, therefore toggling this bit by
consecutive writes to this register is a valid
method of issuing a software reset.
BIT 3 DMAEN
PC/AT and Model 30 Mode:
Writing this bit to logic "1" will enable the DRQ,
nDACK, TC and FINTR outputs. This bit being
a logic "0" will disable the nDACK and TC
inputs, and hold the DRQ and FINTR outputs in
a high impedance state. This bit is a logic "0"
after a reset and in these modes.
PS/2 Mode: In this mode the DRQ, nDACK, TC
and FINTR pins are always enabled. During a
reset, the DRQ, nDACK, TC, and FINTR pins
will remain enabled, but this bit will be cleared to
a logic "0".
BIT 4 MOTOR ENABLE 0
This bit controls the MTR0 disk interface output.
A logic "1" in this bit will cause the output pin to
go active.
BIT 5 MOTOR ENABLE 1
This bit controls the MTR1 disk interface output.
A logic "1" in this bit will cause the output pin to
go active.
BIT 6 MOTOR ENABLE 2
This bit controls the MTR2 disk interface output.
A logic "1" in this bit will cause the output pin to
go active.
BIT 7 MOTOR ENABLE 3
This bit controls the MTR3 disk interface output.
A logic "1" in this bit causes the output to go
active.
Table 3 - Drive Activation Values
DRIVE
0
1
2
3
7
6
5
4
3
2
1
0
MOT
EN3
0
MOT
EN2
0
MOT
EN1
0
MOT
EN0
0
DMAEN nRESE
T
0
DRIVE
SEL1
0
DRIVE
SEL0
0
RESET
COND.
0
DOR VALUE
1CH
2DH
4EH
8FH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FDC37C665GT_07 | 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 |
| FDC37C665GT-MS | 功能描述:輸入/輸出控制器接口集成電路 Super I/O Controller- Pb Free RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| FDC37C665GTQFP | 功能描述:輸入/輸出控制器接口集成電路 Super I/O Controller RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| FDC37C665IR | 制造商:SMSC 制造商全稱:SMSC 功能描述:3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support |
| FDC37C665IRQFP | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述: |
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