參數(shù)資料
型號(hào)： IT8673F
廠(chǎng)商： Electronic Theatre Controls, Inc.
英文描述： GT 35C 35#12 SKT PLUG
中文描述： 先進(jìn)的輸入/輸出（高級(jí)I / O）的初步規(guī)范V0.5
文件頁(yè)數(shù)： 19/128頁(yè)
文件大?。?/td> 780K
代理商： IT8673F
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IT8673F
9
Pin(s) No.
112 - 105
Signal
PD[0:7]
I/O
DIO24
Power
VCC
Description
Parallel Port Data Bus 0-7.
This bus provides a byte-wide input or
output to the system. The eight lines are held in a high impedance
state when the port is deselected.
Printer Select Input #.
When low, the printer is selected. This signal
is derived from the complement of bit 3 of the printer control register.
Printer Initialize #,
active low. This signal is derived from bit 2 of the
printer control register, and is used to initialize the printer.
Printer Error #,
when active low it indicates that the printer has
encountered an error. The error message can be read from bit 3 of
the printer status register.
Printer AutoLline feed #,
active low. This signal is derived from the
complement of bit 1 of the printer control register, and is used to
advance one line after each line is printed.
Printer Strobe #,
active low. This signal is the complement of bit 0 of
the printer control register, and is used to strobe the printing data into
the printer.
113
SLIN#
DIO24
VCC
114
INIT#
DIO24
VCC
115
ERR#
DI
VCC
116
AFD#
DIO24
VCC
117
STB#
DIO24
VCC
Floppy Disk Controller Signals
5
DENSEL#
DO40
VCC
Density Select #.
DENSEL# is high for high data rates (500Kbps,
1Mbps). DENSEL# is low for low data rates (250Kbps, 300Kbps)
FDD Motor A Enable #.
Active low.
FDD Drive B Enable #
.
Active low.
FDD Drive A Enable #.
Active low.
FDD Motor B Enable #
.
Active low.
FDC Head Direction #.
Step in when low, step out when high during
a SEEK operation.
FDC Step Pulse #.
Active low.
6
7
8
9
11
MOTEA#
DRVB#
DRVA#
MOTEB#
DIR#
DO40
DO40
DO40
DO40
DO40
VCC
VCC
VCC
VCC
VCC
12
STEP#
DO40
VCC
13
14
15
16
17
WDATA#
WGATE#
SIDE1#
INDEX#
TK00#
DO40
DO40
DO40
DI
DI
VCC
VCC
VCC
VCC
VCC
FDC Write Serial Data to the drive #.
Active low.
FDC Write Gate Enable #.
Active low.
Floppy Disk Side 1 Select #.
Active low.
FDC Index #.
Active low. Indicates the beginning of a disk track.
Floppy Disk Track 0 #.
Active low. Indicates that the head of the
selected drive is on track 0.
FDD Write Protect #.
Active low. Indicates that the disk of the
selected drive is write-protected.
FDC Read Disk Data #.
Active low, serial data input from FDD
Floppy Disk Change #.
Active low. This is an input pin that senses
whether the drive door has been opened or a diskette has been
changed.
18
WPT#
DI
VCC
19
20
RDATA#
DSKCHG#
DI
DI
VCC
VCC
Keyboard Controller Signals
79
KDAT
80
KCLK
81
MDAT
82
MCLK
83
KRST#
86
GA20
DIOD16
DIOD16
DIOD16
DIOD16
DOD8
DOD8
VCCH
VCCH
VCCH
VCCH
VCCH
VCCH
Keyboard Data.
Keyboard Clock.
PS/2 Mouse Data.
PS/2 Mouse Clock.
Keyboard Reset #.
Gate Address 20.
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IT8687R 制造商:ITE 功能描述:
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