GA-1170 CIRCUIT DIAGRAM

7 – 6

<RS232C CONNECTOR>

<TMPR4927TB SIO_Ch1>

MEMD14
MEMD23
MEMD6
MEMD17
MEMD11
MEMD9
MEMD16
MEMD25
MEMD0
MEMD26
MEMD30
MEMD3
MEMD5
MEMD1
MEMD12
MEMD18
MEMD8
MEMD20
MEMD22
MEMD24
MEMD10
MEMD7
MEMD13
MEMD15
MEMD29
MEMD4
MEMD28
MEMD19
MEMD31
MEMD2
MEMD21
MEMD27
MEMA0
MEMA1
MEMA2
MEMA3
MEMA4
MEMA5
MEMA6
MEMA7
MEMA8
MEMA9
MEMA10
MEMA11
MEMA12
MEMA13
MEMA14
MEMA15
MEMA16
MEMA17
MEMA18
MEMA19
LAB20
LAB20
LA7
LA9
LA14
LA4
LA3
LA8
LA0
LA10
LA12
LA16
LA13
LA19
LA2
LA18
LA6
LA17
LA5
LA20
LA1
LA15
LA11
LAA5
LAA9
LAA9LAA7
LAA5
LAA19
LAA3
LAA16
LAA8
LAA14
LAA1
LAA17
LAA10
LAA14
LAA0
LAA8
LAA15
LAA12
LAA13
LAA1
LAA11
LAA4
LAA6
LAA3
LAA2
LAA13
LAA18
LAA11
LAA4
LAA19
LAA7
LAA12
LAA12
LAA17
LAA6
LAA18
LAA0
LAA2
LAA16
LAA10
LAA15
LAA[19:0]
LDD7
LDD2
LDD11
LDD22
LDD24
LDD21
LDD29
LDD5
LDD12
LDD31
LDD16
LDD26
LDD27
LDD[31:0]
LDD6
LDD18
LDD20
LDD1
LDD4
LDD17
LDD8
LDD23
LDD28
LDD10
LDD25
LDD14LDD30
LDD9
LDD3
LDD13
LDD19
LDD15
LDD0
LDD31
LDD30
LDD28
LDD29
LDD27
LDD25
LDD26
LDD24
LDD22
LDD20
LDD23
LDD21
LDD19
LDD17
LDD18
LDD16
LDD15
LDD13
LDD14
LDD12
LDD11
LDD9
LDD10
LDD8
LDD7
LDD5
LDD6
LDD4
LDD3
LDD1
LDD2
LDD0
LD4
LD21
LD28
LD6
LD10
LD11
LD30
LD0
LD7
LD13
LD17
LD31
LD22
LD26
LD27
LD14
LD2
LD9
LD16
LD18
LD5
LD20
LD24
LD19
LD25
LD15
LD29
LD1
LD3
LD8
LD12
LD23
LD31
LD29
LD30
LD28
LD27
LD25
LD26
LD24
LD23
LD21
LD22
LD20
LD19
LD17
LD18
LD16
LD15
LD13
LD14
LD12
LD11
LD9
LD10
LD8
LD7
LD5
LD6
LD4
LD3
LD1
LD2
LD0
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1 18
1Y2 16
1Y3 14
1Y4 12
2Y1 9
2Y2 7
2Y3 5
2Y4 3
VCC 20
GND 10
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1 18
1Y2 16
1Y3 14
1Y4 12
2Y1 9
2Y2 7
2Y3 5
2Y4 3
VCC 20
GND 10
D0
3
D1
4
D2
7
D3
8
D4
13
D5
14
D6
17
D7
18
OE
1
LE
11
Q0 2
Q1 5
Q2 6
Q3 9
Q4 12
Q5 15
Q6 16
Q7 19
VCC 20
GND 10
1
2
3
45
6
7
8
1
2
3
4 5
6
7
8
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1 18
1Y2 16
1Y3 14
1Y4 12
2Y1 9
2Y2 7
2Y3 5
2Y4 3
VCC 20
GND 10
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
45
6
7
8
TXD
1
RXD
2
5V
3
GND
4
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
1
2
3
4 5
6
7
8
A1
2
A2
3
A3
4
A4
5
DIR
1
OE
19
B1 18
B2 17
B3 16
B4 15
B5 14
B6 13
B7 12
B8 11
VCC 20
GND 10
OE
OE
A8
9A7
8A6
7A5
6
A1
2
A2
3
A3
4
A4
5
DIR
1
19
B1 18
B2 17
B3 16
B4 15
B5 14
B6 13
B7 12
B8 11
VCC 20
GND 10
A8
9A7
8A6
7A5
6
A1
2
A2
3
A3
4
A4
5
DIR
1
19
B1 18
B2 17
B3 16
B4 15
B5 14
B6 13
B7 12
B8 11
VCC 20
GND 10
A8
9A7
8A6
7A5
6
56 98
3 41 2
1
2
3
4 5
6
7
8
A1
2
A2
3
A3
4
A4
5
DIR
1
19
B1 18
B2 17
B3 16
B4 15
B5 14
B6 13
B7 12
B8 11
VCC 20
GND 10
A8
9A7
8A6
7A5
6
IC8
TC74LCX244FT
R210 33
TP466
C65
0.1uF
C67
0.1uF
C66
0.1uF
BR62
33
C69
0.1uF
BR63
10K
IC9
TC74LCX244FT
C70
0.1uF
IC10
TC74LCX373FT
C63
0.1uF
TP555
TP470
BR43
33
BR65
10K
IC7
TC74LCX244FT
BR55
10K
BR53
10K
BR50
33
BR52
33
BR57
10K
BR54
33
BR44
33
CN6
T4B-SQ
R201 33
BR59
10K
BR56
33
BR45
33
TP465
BR58
33
TP447
BR61
10K
BR47
33
R97 33
TP556
BR60
33
R99 33
TP557
TP401
TP558
BR46
33
BR51
10K
TP400
TP559
R98 33
TP471
TP560
TP446
IC12
TC74LCX245FT
TP561
IC14
TC74LCX245FT
IC13
TC74LCX245FT
R100 33
IC29C
TC74LCX14FT
IC29D
TC74LCX14FT
IC29B
TC74LCX14FT
IC29A
TC74LCX14FT
R202 33
C64
0.1uF
R246
10K
BR64
33
IC11
TC74LCX245FT
C68
0.1uF
VCCIO VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO VCCIO
VCCIO
VCC
VCC
VCCIO
MEMA[19:0]3,5,16
MEMD[31:0]3,5,16
MEMDIR3,15
ALE3,15
ROMOE3,15 FOE 7,15
ROMWE3,15 FWE 7,15
FONT_OE 7,15
FONT_WE 7,15
RXD12,16
TXD12,16
LAB20 16
LA[20:0] 7
LD[31:0] 7
LDD[31:0] 16
LAA[19:0] 16
A
B
C
D
876543
12345678
D
C
B
A A
B
C
D
876543
1
1
2
2
345678
D
C
B
A
6/16ADDRESS_BUFFER/DATA_BUFFER