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IC13
IC17
8
8
8
DATA
ADDRESS
AD0-AD7
D0-D7
AD0-AD7
BUFF
SEPARATOR
TP1
DATAEN-N
ALE
1
19
11
EXTDTEN-N
IC14
IC18
8
8
8
DATA
ADDRESS
AD8-AD15
D8-D15
AD8-AD15
BUFF
SEPARATOR
DATAEN-N
ALE
11
1
19
EXTDTEN-N
IC19
IC15
8
8
8
DATA
ADDRESS
AD16-AD23
D16-D23
AD16-AD23
BUFF
SEPARATOR
ALE
DATAEN-N
1
19
11
EXTDTEN-N
IC16
IC20
8
8
8
DATA
ADDRESS
AD24-AD31
D24-D31
AD24-AD31
BUFF
SEPARATOR
1
19
11
DATAEN-N
ALE
EXTDTEN-N
IC44
IC40
CN1
3
1
REF VIDEO(X)IN
VIDEO
6 2
SYNC
CN-1259,CN1
2
2
REF VIDEO(Y)IN
AMP
SEP
CNU-500
4
BEN0-BEN3
4
A4-A7
ADDRESS DECODER
IC25
8
15
A8-A15
23
22
17
8
12
20
ADDRESS
19
A16-A23
A20-A31
DECODER
8
A24-A31
IC35
9
4
A0
DQ1
VA0-VA8
OPTION
VD4-VD7
A8
DQ4
1
2
8
9
RAS
WE
CAS
OE
IC38
9
4
A0
1M-BIT
DQ1
VA0-VA8
VD0-VD3
DRAM
A8
DQ4
1
2
10
11 RAS
WE
CAS
OE
IC46
3
1
V RESET
4
7
2
GEN.
1
IC49
IC50
4
H RESET
9
14
IC52
CP1
GEN.
IC41
28
1
13
5
7
6
1 1
14.31818MHz
PLL
BUFF
SW
IC47
VCO
2
8
H TRIG
9
3
IC43
GEN.
Q6,8
IC41
SW
CP2
1
5,6
3
14.25MHz
INV
Q7,9
VCO
28
SW
AT-100 (2/2)
AT-100 (2/2)
READ/WRITE CONTROLLER
IC33
I0
6
EPROM
2
FLASH
3
IFI0
7
23
ACK-N
22
RDCE-N
EEPROM
4
21
DATA R/W
RAM-P
5
15
RDEN-N
14
WREN-N
I0-CS
RESE-N1
8
EPROM-CS0
WAIT-IN
9
FROM-CS0
WR-N
10
IFI0-CS
EEPROM-CS0
RD-N
11
BURST
13
SRAM-CS0
1
I/O BUS
IC42
8
VD4
CD0
D0-D7
VD7
CD7
GRAPHIC
CONTROLLER
3
PS0
A2-A4
PS2
VD0
VD3
53
14
RESE-N1
RAS
RESET
57
17
AVDP-RD
WE
CSR
58
15
AVDP-WR
CAS
CSW
16
60
WAIT-N
OE
WAIT
9
61
AVDP-INT
VA0
INT
VA8
37
VRESET
TP2
46
B
IC51
40
45
3
CHR
SM
G
AMP
44
R
IC48
39
5
1
CHR-BLACK
BLACK
GEN.
3 33
X IN
49
CSYNC
S6
SYNC
ON/OFF
SW
Q10
36
HSYNC
5-7
5-7
S2
8
TEST
INC00-INC07
SW
S3
IC37
4
MODE
INC10-INC13
SW
S4
INC14
INC15
16
UP/DOWN
BUSERR-N
WAIT-N
6
S5
INC16
RESE-N1
7
INC17
SET/
WR-N
10
CANCEL
ACK-N
9
RD-N
11
RDCE-N
8
PIO-C50
PIO-C51
RDEN-N
CTRL
1
WREN-N
RESE-P1
A2
A3
A6
PIO-CS0
A7
PIO-CS0
ADDRESS
A8
DECODER
A21
IC36
1
WREN-N
3
AVDR-WR
2
IC36
5
RDEN-N
6
AVDP-RD
4
CN1
CHARACTOR OUT
5
CN-1259,CN1
IC45
PC00
PC07
8
PB00
INB00-INB07
PB07
8
PC0
PB10
INB10-INB17
PC3
PB17
8
PA00
PIO
OUTA00-OUTA07
PA07
8
31
PA10
PC14
OUTA00-OUTA17
30
PC15
PA17
29
PC16
28
PC17
I/O
79
CSO
8
25
CSI
70
D0
RD
D0-D7
69
D7
WR
68
RESET
3
A0
2
A1
AT-100 (2/2) BLOCK
CNU-500
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