REV.-A
Slave
CPU
6303
1 . Location: MAPLE Board,
130
2.
Pin
Assignment
Vss
XTAL
EX
TAL
NMI
IRQI
RES
STBY
P20
P 21
P22
P23
P24
P
10
Pll
P
12
P
13
P
14
PIS
P
16
P 17
-
-"
""-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
E
SC
1
SC2
P30
P31
P32
P33
P34
P35
P36
P37
P40
P 41
P42
P43
P44
P45
P46
P47
Vee
Table
7-3
6303
Slave
CPU Pin
Assignments
Pin
No.
Signal
In/Out
Function
Name
Pin
No.
Signal
In/Out
Function
Name
1
G
-
GND
14
P11
Out Microcassette tape erase
2 X In
Unused - reserved
for
exter-
(ERAH)
TAL
nal clock signal input.
15
P12 In Microcassette tape
write
3
EX
In External clock signal input
enable (WE)
TAL
2.4576
MHz
16
P13
In
Microcassette tape head
--
Unused - reserved for non-4
NMI In
load/unload
switch
maskable interrupt input.
17
P14 In Serial interface
PIN
signal
--
5 INTR In Interrupt request
18
P15
Out
Serial interface POUT signal
-
6
RS
In Reset signal
19
P16
Out
Speaker output
--
Unused - reserved
for
Stand-
7 STB
In
by
signal input.
20
P16
Out
Speaker
power
on/off
8
P20
In Microcassette tape read data
21
VC In
+5V
(Circuit voltage)
(RDMC)
22
A15
Out
Address bus
9
P21
Out Microcassette tape
write
23
A14
Out
Address bus
data (WD)
24
A13
Out
Address bus
10
P22
In
Unused - reserved
for
opera-
tion mode setting.
25
A12
Out Address bus
11
P23
In Serial interface receive data
26
A11 Out
Address bus
12
P24
Out Serial interface
transmit
data
27
A10
Out
Address bus
13
P10
Out Microcassette head pinch
28
A9
Out
Address bus
motor
ON/OFF (HMT)
29
A8
Out
Address bus
7-7
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