Drawings
8-7
SPARE1
LCD_IO_CS
ADC_SCLK
SER_IO
ADC_SER_WR
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
AD 0
AD 1
AD 2
AD 4
AD 5
AD 6
AD 7
AD 3
AD[0:7]
GND
GND
MEM_OK
ADC_SER_RD
GND
ADC_DSYNC
SER_CLK
ARDY
LAMP_ON
PCS1
BATT_LOW
EXT_DAC_EN
WR
RD
UCS
ADC_DRDY
VRAM_CS
LCS
CLKOUTA
P W M_ L A MP
RTS0
TXD0
RXD0
RXD1
CTS0
CTS1
RTS1
U38
71
19
20
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
40
4
5
6
7
49
48
43
57
51
50
58
44
11
10
9
74
73
16
17
78
80
82
84
86
88
91
94
79
81
83
85
87
90
93
95
96
13
14
47
77
76
56
54
53
52
8
46
45
75
72
3
2
1
100
99
98
97
66
65
63
62
60
59
68
69
10 K
R1
15PF
C18
RESET
RESET
VCC
C7
0. 1U F
C74
0. 1U F
C75
0. 1 U F
C76
0. 1U F
C77
0. 1U F
C78
0. 1U F
C79
0. 1U F
22PF
C19
GND
VCC
GND
U36
7
2
3
1
6
5
33 UF / 2 0V
C1
18.432MHZ
Y1
LCD_DAC_EN
TXD1
~M C S 3/ ~ R F S H /P I O2 5
~M C S 2/ P I O2 4
~P C S 6 / A 2 / P IO 2
~P C S 5 / A 1 / P IO 3
~P C S 3/ ~ RT S1/ ~RT R1 / PI O1 9
~P CS2/~CTS 1/~ENRX1/PIO18
~P C S 1 / P I O1 7
~P C S 0 / P I O1 6
~U ZI / P I O2 6
TX D 1 / P I O 2 7
RX D1/P IO2 8
~C TS 0/~ E NR X 0 /P I O2 1
RX D0/P IO2 3
TX D 0 / P I O 2 2
~R TS 0/~ RT R 0 / P I O2 0
TM R I N 1 / P I O 0
TM RI N0/ PI O11
HO LD
SRDY/PIO6
ARDY
IN T4/PI O3 0
IN T3/ ~IN TA1 /IR Q
IN T2 /~I N TA 0/ P W D / P I O3 1
IN T1/ ~S E LEC T
55
INT 0
DR Q1/ INT6/P IO13
DR Q0/ INT5/P IO12
NMI
X2
X1
S6 /~L OCK /~C LK DIV 2/P IO2 9
AO15
AO14
AO13
AO12
AO11
AO10
AO9
AO8
AD 7
AD 6
AD 5
AD 4
AD 3
AD 2
AD 1
AD 0
CL KOUTB
CL KOUTA
TMRO UT1 /P IO 1
TMRO UT0/ PI O1 0
S2
S1
S0
HLDA
LC S/ O N CE 0
~M C S 0/ P I O1 4
~M C S 1/ P I O1 5
UC S/O NCE 1
WB
DT/~ R/P IO 4
~D EN / ~D S / P I O 5
ALE
RD
WR
RFSH2/ ADE N
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A1 0
A1 1
A1 2
A1 3
A1 4
A1 5
A1 6
A17/PIO7
A18/PIO8
A19/PIO9
RE S
AM188ES
RS T
RS T
CTRL
CT
RES IN
SEN SE
TLC7705ID
+
Ta nt al um
41
(U 38 ^ 1 5) (U 38 ^ 3 8) (U 38 ^ 6 1) (U 38 ^6 7) (U 38 ^9 2)
(U38^12) (U38^18) (U38^41& 42) (U38^64) (U38^70) (U38^89)
(U 3 6 ^8 )
(U 3 6 ^4 )
(U 38 ^ 2 1)
G1 0 MAIN BOARD
335901-602-1 REV. A
1 OF 14
CPU
Figure 8.3 Main board CPU 1 of 14
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