— 11 —
The following table shows the pin functions of LSI16.
Pin No.
Terminal
I n / O u t
Function
1
REQB
Out
Not used
FI8 ~ FI10,
SI8 ~ SI10
4
VCC
In
+5 V source
5
CRDB
In
Read enable signal input
6
CWRB
In
Write enable signal input
7
CCSB
In
Chip select signal input
8, 9, 11
T, STBY, W
In
Not used. Connected to +5 V.
10
RESB
In
Reset signal input
12
CKI
In
16 MHz clock input
13, 14
TMD, TST
In
Not used. Connected to ground.
15
CKO
Out
Not used
16
GND
In
Ground (0 V) source
17
XIN
In
Not used. Connected to ground.
18
XOUT
Out
Not used
19
TRES
In
Not used. Connected to ground.
20 ~ 23, 25 ~ 28
CD0 ~ CD7
In/Out
Data bus
24
GND
In
Ground (0 V) source
29 ~ 31
CA0 ~ CA2
In
Address bus
32
VCC
In
+5 V source
33 ~ 39, 41 ~ 43,
FI0 ~ FI9,
53 ~ 55, 57 ~ 63
SI0 ~ SI9
40
VCC
In
+5 V source
44 ~ 47, 49 ~ 52
KC0 ~ KC7
Out
Key scan signal
48, 56
GND
In
Ground (0 V) source
64
VCC
In
+5 V source
2, 3, 60 ~ 63
In
In
Not used. Connected to +5 V.
Key input signal input
Содержание CTK-680
Страница 1: ...GM SOUND KEYBOARD CTK 680 CTK 680...
Страница 18: ...18 SUB PCB JCM716 MA2M...
Страница 19: ...19 CONSOLE PCB M716 CN1M...
Страница 20: ...20 KEYBOARD PCBs JCM617T KY1M KY2M...
Страница 21: ...21 EXPLODED VIEW 14 13 12 12 4 5 16 17 19 21 22 23 20 7 9 8 6 18 24 15 3 1 R 1 R 3 R 2 11 10 10 2...
Страница 25: ...MA0100271A...
