Intermec EasyCoder 501 - CG16 Master Processor

133Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 17 CPU Board
AD0-A15,A1-A20
IC06B
17WR'
15WR'
13RD'
11RD'
19NHOLDA
74HC241M
9IOR
7RD
5IOW
3WR
GND
R4
13HBE
11
12
IC01D
74HC32M
1
10WR
8
9A0
IC01C
WRL
WRH
74HC32M
10
9CTTL
IC03C
8 CTTL'
1
43 AD4
42 AD5
41 AD6
40 AD7
GND
38 AD8
37 AD9
36 AD10
35 AD11
34 AD12
33 AD13
32 AD14
31 AD15
+5V
29 A16'
28 A17'
27 A18'
11 12 13 23 22 21 19 18 17 16 15 14 24 25
GND +5V INT NMI
A21' A22' A23' A20' A19'
GND
/RESET
NEXTHOLD
NDMAHOLD
74HC08M
2
NHOLD3
&
1
IC02A
R22
TSO WR' RD'
60 59 58 57
OSC TSO
WR RD
/RESET 61
RSTI
62
XIN
GND
GND
CWAIT 64
CWAIT
WAIT2 65
WAIT2
WAIT1 66
WAIT1
NRSTO 67
RSTO
NHOLD 68
HOLD
NHOLDA 1
HOLDA
HBE 2
HBE
+5V
VCC
4
SPC
NADS 5
ADS
DDIN 6
DDIN
7
PFS
8
ST3
9
ST2
GND ST1 ST0 ILO A21 A22 A23 VCC BPU U/S INT NMI
RESV RESV
32CG16
IC07
PHI1 FCLK PHI2 CTTL
AD0 VCC GND DBE VCC GND
47 48 49 50 53 55
+5V GND +5V GND
AD0
CTTL
+5V
AD1 AD2 AD3
46 45 44
AD1 AD2 AD3
AD4
AD5
AD6
AD7
GND
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
VCC
A16
A17
A18
A20 A19 GND
NMI
INT
HOLDA
74AC14M
43
IC08B
R6
1
74AC14M
9
74AC14M
RESET8
IC08D
ADS
2
IC08A
15pF
C3
R3
C2
R2
Y1
C1
L1
+5V
+5V
GND
GND
GND
IC04
WR
A23
A22
A21
A20
A19
A18
A17
A16
A15
AD0
A18
GND
4
3NMI
R5
2+5V
1
P3
GAL22V10
CIO1413
MEMTYPE1511
WAIT21610
WAIT1179
CSMEM188
CS4197
CS3206
CS2215
CS1224
CS0233
2
1
RESETB
RESETB
MEMTYPE
A18
74HC32M
2
A18/CS3
1
IC03A
1
74HC32M
5
CS4B6
4
IC01B
74HC32M
2
CS3B3
1
IC01A
IO9
IO8
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
I9
I8
I7
I6
I5
I4
I3
I2
I1
I0
1
1
1DMAHLDA
74HC541M
9A23'
8A22'
7A21'
6A20'
5A19'
4A18'
3A17'
2A16'
19
A16
A17
A18
A19
A20
A21
A22
A23
OE2
11
18
17
16
15
14
13
12
IC10
9AD7
8AD6
7AD5
6AD4
5AD3
4AD2
3AD1
2AD0
1DMAHLDA
11ADS
74HC573M
IC13
9AD8
8AD9
7AD10
6AD11
5AD12
4AD13
3AD14
2AD15
1DMAHLDA
11ADS
19 A15
18 A14
17 A13
16 A12
15 A11
14 A10
13 A9
12 A8
19 A0
18 A1
17 A2
16 A3
15 A4
14 A5
13 A6
12 A7
DMAHLDA
OE
LE
OE
LE
IC15
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
74HC32M
1
R1
+5V
EN
DDIN
A11
A12
TSO
CIO
A13
WRADDR
WRSENS
WRHPC
RDHPC
IC09
74HC138M
7
96
105
114
12
133
142
151
6
5
&
4
3
22
7
1G1
0
00
DX
IC702A
WAIT8 1
&
WAIT 2
74HC08M
3
11
1
A10
A11
A12
A13
CIO
+5V
IC16
74HC138M
CSTIMER7
CSDI96
CSPANEL105
CSX1114
CSX012
CSAD133
CSDMA142
CSRTC151
6
5
&
4
3
2
2
7
1G1
0
0
0
DX
A10
A11
A12
GND
CIO
A13
CS8255B
CS8255A
IC12
74HC138M
7
96
105
114
12
133
142
151
6
5
&
4
3
22
7
1G1
0
00
DX
CTTL' 8
+5V 9
CSDIS 1
+5V 2
5
4
3
6TSO
4
5
IC17B
74HC02M
1
IC18
IC19F
ECLK 13
1
74HC04M
12
13
1213
IC03D
12
11
10
6
74HC02M
>C1/
R
+
& 1D
WAIT
CWAIT
A11
A12
A13
A10
A11
A12
A13
R7
GND
+5V
R9
+5V +5V
R8
+5V
74HC573M
OE1
74HC164M
VEE
VEE
FCLK'
R34
17.6:1 CG16 Master Processor