Intermec EasyCoder 501 XP & 601 XP – Service Manual
125
Chapter 15 CPU Board
15.8 Schematics
Top Level
VCC
VCC
VCC
VCC
VCC
ICAS0
ICAS1
ICAS2
GND
IOWR
MWR1
MWR0
V24
ECS2
ECS4
ECS5
A17
A15
A13
A11
A25
A23
A21
A19
EDRDY
IOCS1C
IOCS1D
A16
A14
A12
A10
A24
A22
A20
A18
V5.3
DREQ
V24
GND
RESET
IOWAIT
SCL
SDA
IOEN
INT4H
IORD
A0
IOA1
IORD
IOWR
ECS3
A8
A6
A4
A2
A9
A7
A5
A3
CLK8
IOD8
IOD10
IOD12
IOD14
IOD9
IOD11
IOD13
IOD15
V5.3
V5.3
IOD2
IOD4
IOD6
IOD0
IOCS3
A23
A26
A27
IOCS2
SYSCLK
MWR1
MWR0
ECS5
ECS4
ECS3
ECS2
RD
WR
A0
EDRDY
SYSRD
SYSWR
IOWR
DATAEN
IOBE1
IOBE0
GND
GND
GND
GND
GND
GND
GND
GND
V5.3
IOD1
IOD3
IOD5
IOD7
DIAG0
RDCEN
WR
INT4
INT5
SYSCLK
DIAG1
EOE
ESTROBE
IOCS4DRD
IOCS4DWR
A18
A19
IOCS4ARD
IOCS4BRD
IOCS4CRD
IOCS4AWR
IOCS4BWR
IOCS4CWR
P24_EN
INT4G
GND
VCC
V5.3
P24
V24
V42
IOCS1D
IOCS1C
IOCS1B
IOCS1A
IOCS1
A22
A23
A21
IOCS1E
IOCS1F
A/D5
A/D6
CGND
Peripheral
Memory
Core CPU board
TPHinterface
SM driver
Sensors
DRCTRL
A[0..31]
D[0..31]
CTRL
IOBUS
PWR
PIO
CENTRONICS
C
A
A
B
G
Y0
Y1
Y2
Y3
A
B
G
Y0
Y1
Y2
Y3
A
B
C
G1
G2A
G2B
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
GND
VCC
GND
A[0..31]
D[0..31]
CTRL
DRCTRL
IOBUS
PWR
PIO
VCC
GND
IOBUS
CTRL
PWR
PIO
CENTRONICS
A[0..31]
I0
I1
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
GND
IOBUS
PWR
PIO
IOBUS
CTRL
PWR
PIO
IOBUS
PWR
PIO
GND
GND
GND
CGND
CGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
9
10
11
12
15
13
14
7
6
5
4
1
3
2
1
2
3
6
4
5
15
14
13
12
11
10
9
7
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
13
23
22
21
20
19
18
17
16
15
14
Memory Card
42x-45x
C. ref.
POD5 CTRL
DMUX
DMUX
DMUX
&
Expansion connector
GND
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
CLK1
NC
+5V
C. ref. 4xx
C. ref. 1xx
RISC processor
C. ref. 2xx
Flash, DRAM
C. ref. 3xx
Timer, Slaveproc.
Centronics,RS232
C. ref. 5xx
D80
P80
74HC139
IC801B
74HC139
IC801A
74HC138
IC802
R81
R82
C800
C801
C802
C803
C804
C805
C806
C807
C808
C809
C829
C828
C827
C826
C825
C824
C823
C822
C821
C820
C818
C817
C816
C815
C814
C813
C812
C811
C819
C810
C838
C837
C836
C835
C834
C833
C832
C831
C839
C830
C848
C847
C846
C845
C844
C843
C842
C841
C849
C840
C850
C851
P81A
P81B
P82A
P82B
P83
22V10
IC803
C82
C81
R83
R84
2n2
L80
1-971600-27 CPU Board