Date: August 21, 1997
Sheet 5
of 23
Size Document Number
REV
A3
96183
SD
Title
390 ACERNOTE LIGHT
CACHE RAM & TAG RAM
ACER TAIPEI TAIWAN R.O.C
C378
SCD1U
CY2
SCD1U
1
2
3
1
4
7
U47A
TSHCT08
4
5
6
1
4
7
U47B
TSHCT08
D
2
CLK
3
Q 5
Q 6
VCC
14
P
R
4
GND
7
C
L
1
U43A
SOAC74
D
12
CLK
11
Q 9
Q 8
VCC
14
P
R
1
0
GND
7
C
L
1
3
U43B
SOAC74
+5V
+5V
+5V
1,2
$CPUD[0..63]
$
C
P
U
D
1
7
$
C
P
U
D
1
8
$
C
P
U
D
1
9
$
C
P
U
D
2
0
$
C
P
U
D
2
1
$
C
P
U
D
2
2
$
C
P
U
D
2
3
$
C
P
U
D
2
4
$
C
P
U
D
2
5
$CPUD26
$CPUD27
$CPUD28
$CPUD29
$CPUD30
$CPUD31
$CPUD32
256K L2 PIPELINE BURST CACHE
C211
SC1KP
C210
SCD1U
G
N
D
Q
1
IO33 2
IO34 3
IO35 4
IO36 5
IO37 6
IO38 7
IO39 8
IO40 9
IO41 10
IO42 11
IO43 12
VCCQ
13
G
N
D
Q
1
4
IO44 15
IO45 16
IO46 17
IO47 18
IO48 19
IO49 20
IO50 21
IO51 22
IO52 23
IO53 24
VCCQ
25
G
N
D
Q
2
6
IO54 27
IO55 28
IO56 29
IO57 30
IO58 31
IO59 32
IO60 33
IO61 34
IO62 35
IO63 36
IO64 37
VCCQ
38
G
N
D
Q
3
9
N
C
4
0
MODE
41
NC
42
A
1
4
4
3
A13
44
VCC
45
G
N
D
4
6
A12
47
A11
48
A10
49
A9
50
A8
51
NC
52
A7
53
A6
54
A5
55
A4
56
A3
57
VCC
58
G
N
D
5
9
A2
60
A1
61
A0
62
Z
Z
6
3
VCCQ
64
G
N
D
Q
6
5
IO
1
6
6
IO
2
6
7
IO
3
6
8
IO
4
6
9
IO
5
7
0
IO
6
7
1
IO
7
7
2
IO
8
7
3
IO
9
7
4
IO
1
0
7
5
IO
1
1
7
6
VCCQ
77
G
N
D
Q
7
8
IO
1
2
7
9
IO
1
3
8
0
IO
1
4
8
1
IO
1
5
8
2
IO
1
6
8
3
IO
1
7
8
4
IO
1
8
8
5
IO
1
9
8
6
IO
2
0
8
7
IO
2
1
8
8
VCCQ
89
G
N
D
Q
9
0
IO
2
2
9
1
IO
2
3
9
2
IO
2
4
9
3
IO
2
5
9
4
IO
2
6
9
5
IO27 96
IO28 97
IO29 98
IO30 99
IO31 100
IO32 101
VCCQ
102
G
N
D
Q
1
0
3
A
D
V
#
1
0
4
A
D
S
P
#
1
0
5
A
D
S
C
#
1
0
6
BW1#
107
BW2#
108
VCC
109
G
N
D
1
1
0
BW3#
111
BW4#
112
G
W
#
1
1
3
BWE#
114
C
L
K
1
1
5
O
E
#
1
1
6
BW5#
117
BW6#
118
BW7#
119
BW8#
120
C
E
#
1
2
1
VCC
122
G
N
D
1
2
3
C
E
2
#
1
2
4
C
E
3
#
1
2
5
C
E
2
1
2
6
C
E
3
1
2
7
VCCQ
128
U44
S32K64-7
$
C
P
U
D
0
$
C
P
U
D
1
$
C
P
U
D
2
$
C
P
U
D
3
$
C
P
U
D
4
$
C
P
U
D
5
$
C
P
U
D
6
$
C
P
U
D
7
$
C
P
U
D
8
$
C
P
U
D
9
$
C
P
U
D
1
0
$
C
P
U
D
1
1
$
C
P
U
D
1
2
$
C
P
U
D
1
3
$
C
P
U
D
1
4
$
C
P
U
D
1
5
$
C
P
U
D
1
6
C209
SCD1U
C208
SC2D2U16V5ZY
IO_VOLTAGE
+3.3V
1,2
1,2
1
C207
SCD1U
C205
SCD1U
C204
SCD1U
C213
SC1KP
C214
SC1KP
C206
SC2D2U16V5ZY
1
2
R184
DUMMY-R3
$BE#[0..7]
$CPUA18
$W/R#
$CPUA[3..17]
IO_VOLTAGE
2
C212
SC1KP
C215
SCD1U
1
2
R18010KR3
1
2
R179
DUMMY-R3
$BWE# $BE#0
$BE#1
$BE#2
$BE#3
$BE#4
$BE#5
$BE#6
$BE#7
$CPUA10
$CPUA9
$CPUA8
$CPUA7
$CPUA6
$CPUA5
$CPUA4
$CPUA3
$CPUA11
$CPUA12
$CPUA13
$CPUA14
$CPUA15
$CPUA16
$CPUD33
$CPUD34
$CPUD35
$CPUD36
$CPUD37
$CPUD38
$CPUD39
$CPUD40
$CPUD41
$CPUD42
$CPUD43
$CPUD44
$CPUD45
$CPUD46
$CPUD47
$CPUD48
$CPUD49
$CPUD50
$CPUD51
$CPUD52
$CPUD53
$CPUD54
$CPUD55
$CPUD56
$CPUD57
$CPUD58
$CPUD59
$CPUD60
$CPUD61
$CPUD62
$CPUD63
C377
SCD1U
C367
SCD1U
SH_DOWN
1
GND
2
+OUTA
3
VDD
4
-OUTA
5
-INA
6
GND
7
+INA
8
+INB 9
BYPASS 10
-INB
11
-OUTB 12
VDD 13
+OUTB 14
GND 15
HP-IN 16
U46
LM4863
SH_DOWN
1
GND
2
+OUTA
3
VDD
4
-OUTA
5
-INA
6
GND
7
+INA
8
+INB 9
BYPASS 10
-INB
11
-OUTB 12
VDD 13
+OUTB 14
GND 15
HP-IN 16
U42
LM4863
+5V
+5V
D
12
CLK
11
Q 9
Q 8
VCC
14
P
R
1
0
GND
7
C
L
1
3
U37B
SSHCT74
5
6
1
4 4
7
U11B
SSLVT125
+5V
+3.3V
1
2
2
2
2
2
3
2
8
3
1
2
R182
10R3
1
2
R183
0R3
1
2
R188
DUMMY-R3
$CADV#
$CPUADS#
$CADS#
$GWE#
$COE#
$CCS#
$PCIRST#
$L2CLK
$ZZ
$MKR#
$
C
P
U
A
1
7
IO_VOLTAGE
1,2
1
2
RX12
0R3
1
2
RX13
DUMMY-R3
$CPUA7
$CPUA9
$CPUA17
$CPUA16
$CPUA15
$CPUA12
$CPUA11
$CPUA14
$CPUA13
$CPUA10
$CPUA8
$CPUA6
$CPUA5
$CPUA18
2
2
A14
1
A13
26
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A12
2
A8
25
A9
24
A11
23
A10
21
VCC 28
D7 19
D6 18
D5 17
D4 16
D3 15
D2 13
D1 12
CS1* 20
OE* 22
WE* 27
D0 11
GND 14
U45
S32K8-15
C364
SC1KP
C368
SCD1U
$TWE#
$TAG[0..7]
$TAG0
$TAG1
$TAG2
$TAG3
$TAG4
$TAG5
$TAG6
$TAG7
+3.3V
AVAILABLE TTL GATE
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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