2-25
2.1.5.6
PS/2 mouse controller circuit
The IT8673F is used for PS/2 mouse control.
This IT8673F also functions as a keyboard controller, and is accordingly used in common with the PS/2 mouse.
The IT8673F internally converts the serial data sent from the PS/2 mouse into parallel data, and performs interrupt operation to
inform the CPU of the entry of a mouse input.
Since the connector is used in common with the keyboard, it is necessary to use a converter connector when a PS/2 mouse is
connected.
GMD
KB/CLK
KB/DATA
VDD
MINI-DIN
GMD
MS/CLK
MS/DATA
VDD
MINI-DIN
Keyboard
PS/2 Mouse
3
5
1
2
6
4
3
5
1
2
6
4
Split Cable of Keyboard and
10
10
MA746
MA746
Q_B
UN2212
UN2212
D_A
MA152WA
10
10
MA746
MA746
Q_D
UN2212
Q_C
UN2212
D_B
MA152WA
+ 5 V
1 0 K
+5V
470K
470K
+5V
100p
100p
L
L
L
L
+5V
2A
GMD
KB/CLK
KB/DATA
MS/DATA
MS/CLK
VDD
CN_K/B
3
5
1
2
6
4
PS/2 MOUSE
KBCLK
MSDATA
MSCLK
KBDATA
80
81
82
81
MINI-DIN
N0100559V105
10K
GA20
83
KRST#
86
A 2 0 G AT E
R C I N #
Q_A
IT8673F
Содержание JS-170FR Series
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Страница 101: ...3 17 LCD DISPLAY TEST 6 Video Test ENTER 1 OK or 2 NG ...
Страница 134: ...4 JS 170FR PCB s 4 1 Main PCB 4 1 1 Main PCB Schematic Diagram 1 10 4 1 ...
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Страница 143: ...4 1 1 Main PCB Schematic Diagram 10 10 4 10 ...
Страница 144: ...4 1 2 Main PCB Parts Location 4 11 ...
Страница 145: ...4 2 MB PCB 4 2 1 MB PCB Schematic Diagram 4 17 ...
Страница 146: ...4 18 4 2 2 MB PCB Parts Location ...
Страница 148: ...4 3 Peripheral PCB 4 3 1 Peripheral PCB Schematic Diagram 4 20 ...
Страница 149: ...4 21 4 3 2 Peripheral PCB Parts Location ...
Страница 152: ...5 2 Main PCB 75 Peripherals ...
Страница 153: ...5 3 Power Supply Peripherals ...
Страница 154: ...5 4 Customer Display Peripherals ...
Страница 155: ...5 5 LCD Peripherals ...
Страница 156: ...5 6 Inverter PCB Peripherals ...
Страница 161: ...Printed in Japan ...