Sharp UP-5900 Service Manual page 61

13. PS/2 KEYBOARD CONTROLLER
M38813 of Mitsubishi Electric is employed to control the keyboard and the mouse.
In the UP-5900, IRQ12 is not used and therefore no mouse can be use.
13-1. PIN ASSIGNMENT
No. Name Default
33 P17 KSO15
34 P16 KSO14
35 P15 KSO13
36 P14 KSO12
37 P13 KSO11
38 P12 KSO10
39 P11 KSO9
40 P10 KSO8
41 P07 KSO7
42 P06 KSO6
43 P05 KSO5
44 P04 KSO4
45 P03 KSO3
46 P02 KSO2
47 P01 KSO1
48 P00 KSO0
13-2. PS2 CONNECTOR PIN ASSIGNMENT
Pin I/O
1 I/O
2 I/O
3 -
4 -
5 I/O
6 I/O
7 -
8 -
9 -
Signal No.
(N.U.) 49
(N.U.) 50
(N.U.) 51
(N.U.) 52
(N.U.) 53
(N.U.) 54
(N.U.) 55
(N.U.) 56
(N.U.) 8
(N.U.) 9
KSTB5 10
KSTB4 11
KSTB3 29
KSTB2 30
KSTB1 31
KSTB0 32
Signal
KBDATA
MSDATA
GND
+5V
KBCLK
MSCLK
FG
FG
FG
6 5
4 3
2 1
Name Default
P37 KSI7
P36 KSI6
P35 KSI5
P34 KSI4 KRTN4
P33 KSI3
P32 KSI2
P31 KSI1
P30 KSI0
P53 HKO7
P52 HKO6
P51 HKO5
P50 HKO4
P23 HKO3
P22 HKO2
P21 HKO1
P20 HKO0
13-3. BUILT-IN KEY PAD
Number of Keys: 27Key (including 10 Key), Max. 30 Keys
Key Layout (Default)
KS05
ESC
7
4
1
0
UP-5900VS CIRCUIT DESCRIPTION
5 – 31
Signal No. Name
(N.U.) 12 P47
(N.U.) 13 P46
(N.U.) 17 P42
16 P43
KRTN3 15 P44
KRTN2 14 P45
KRTN1 21 P40
KRTN0 20 P41
(P.U.) 25 P27
(P.U.) 26 P26
(P.U.) 27 P25
(P.U.) 28 P24
(P.U.) 58 P61
(P.U.) 59 P60
(P.U.)
(N.U.)
(3 of them are 1 u 2Key), Free Key Layout
1 u 2Key has the same Key setup.
KS04 KS03 KS02
F4 F5 F10
8 9
Tab
5 6 L-Shift
2 3
L-Ctrl Space
Enter
L-Alt
00
Default Signal
KBDDATA KBDATA
Xkbdclk KBCLK
AUXDATA MSDATA
xAUXCLK MSCLK
IRQ1 IRQ1
IRQ12 (N.U.)
xRC RCIN
GATEA20 A20GATE
SCROLL (N.U.)
NUM (N.U.)
APS (N.U.)
KANA/PAD (N.U.)
TBDATA (N.U.)
TBCLK (P.U.)
KS01 KS00
Back
Delete
KSI0
Space
KSI1
KSI2
KSI3
KSI4