Table of Contents
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Pin
Name
I/O
127 DR8
O RBDR Data input terminal. (18-Bit)
128 Vss
– Ground terminal.
129 DR8
O
RBDR Data input terminals. (18-Bit)
130 DR7
O
131 V
– Power supply terminal.
DD
132 DR5
O
133 DR4
O
134 DR3
O
RBDR Data input terminals. (18-Bit)
135 DR2
O
136 DR1
O
137 DR0
O
138 SIE R
O SIE R signal output terminal.
139 SCI R
O SCI R signal output terminal.
140 V
– Power supply terminal.
DD
141 Vss
– Ground terminal.
142 Vss3
– Ground terminal.
143 Vss2
– Ground terminal.
144 SCI L
O SCI L signal output terminal.
145 SIE L
O SIE L signal output terminal.
146 DL17
O
147 DL16
O
148 DL15
O
RADL Data input terminals. (18-Bit)
149 DL14
O
150 DL13
O
151 DL12
O
152 V
– Power supply terminal.
DD
153 DL11
O
RADL Data input terminals. (18-Bit)
154 DL10
O
155 Vss
– Ground terminal.
156 DL9
O
157 DL8
O
RADL Data input terminals. (18-Bit)
158 DL7
O
159 DL6
O
160 V
3
– Power supply terminal.
DD
Description
1.3.
IC908 on the Main Board is using the Real Time
Clock with Crystal IC YWMSM62X42BR.
Description of this IC is as follows:
STD. P 1
CS
2
0
ALE 3
A
4
0
A
5
1
A
6
2
A
7
3
RD 8
GND 9
1Hz
BUSY Bit
HOLD Bit
D
3
11
D
2
12
D
1
13
D
0
14
WR
10
RD
8
A
0
4
A
1
5
A
2
6
A
3
7
CS
0
2
ALE
3
S
H
CS
1
MO
15
C
16
18 V
17 (V
16 (V
15 CS
14 D
(TOP VIEW)
13 D
12 D
11 D
10 WR
30-Sec Adj Bit
STOP Bit
RESET Bit
30-Sec Adj Bit
24/12 Bit
C
C
C
D
E
F
1-minite Carry
1-second Carry
1-hour Carry
64Hz
S
1
C
F
, S
, MI
, MI
,
1
10
1
10
, H
, W, D
, D
,
1
10
1
10
, MO
, Y
, Y
: Clock Register
1
10
1
10
, C
, C
:
Control Register
D
E
F
DD
)
DD
)
DD
1
0
1
2
3
18
V
DD
17
(V
)
DD
16
(V
)
DD
9
GND
W
1
STD. P
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