參數(shù)資料
型號: W83627SF
英文描述: W83627F plus Smart Card Reader Interface. VID Control. GP I/O?
中文描述: W83627F加上智能卡閱讀器接口。 VID控制。大獎賽的I / O?
文件頁數(shù): 15/147頁
文件大?。?/td> 1348K
代理商: W83627SF
W83627SF
PRELIMINARY
Publication Release Date: Nov. 2000
Revision 0.60
- 8 -
1.2
FDC Interface
SYMBOL
DRVDEN0
PIN
1
I/O
OD
24
OD
12
OD
12
IN
t
I/OD
12t
FUNCTION
Drive Density Select bit 0.
DRVDEN1
SMI#
IRQIN1
GP27
2
Drive Density Select bit 1. (Default)
System Management Interrupt.
Interrupt channel input.
General purpose I/O port 2 bit 7.
INDEX#
3
IN
cs
This Schmitt-triggered input from the disk drive is active low when
the head is positioned over the beginning of a track marked by an
index hole. This input pin is pulled up internally by a 1 K
resistor. The resistor can be disabled by bit 7 of L0-CRF0
(FIPURDWN).
Motor A On. When set to 0, this pin enables disk drive 0. This is
an open drain output.
Drive Select B. When set to 0, this pin enables disk drive B. This
is an open drain output.
Drive Select A. When set to 0, this pin enables disk drive A. This
is an open drain output.
Motor B On. When set to 0, this pin enables disk drive 1. This is
an open drain output.
Direction of the head step motor. An open drain output.
Logic 1 = outward motion
Logic 0 = inward motion
Step output pulses. This active low open drain output produces a
pulse to move the head to another track.
Write data. This logic low open drain writes pre-compensation
serial data to the selected FDD. An open drain output.
Write enable. An open drain output.
MOA#
4
OD
24
DSB#
5
OD
24
DSA#
6
OD
24
MOB#
7
OD
24
DIR#
8
OD
24
STEP#
9
OD
24
WD#
10
OD
24
WE#
TRAK0#
11
OD
24
IN
cs
13
Track 0. This Schmitt-triggered input from the disk drive is active
low when the head is positioned over the outermost track. This
input pin is pulled up internally by a 1 K
resistor. The resistor
can be disabled by bit 7 of L0-CRF0 (FIPURDWN).
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