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8.
REFERENCE
DATA
MB89710A
(CPU)
PIN
ASSIGNMENT
m
P47
P70
P71
P72
P73
P74
ran
P50
P51
P52
P53
SCUT
SIM
P58
P57
AVao
AVR
AYse
AND
AN1
AN2
AN3
AN4
AN5
ANB
ANT
rnwr
MOO
xo
XI
Vas
CL
3
^
S3
cr
S3
u
13
E
13
CE
13
CT
S3
H
S3
CE
S3
E
13
CE
m
E
S3
m
S3
CE
S3
E
S3
E
S3
E
13
E
13
E
13
E
13
E
13
EE
S3
E
13
E
13
E
23
E
3D
E
S3
El
SI
EE
S3
BE
33
E
S3
El
S3
EE
S3
Y«o
P45
P44
P
43
P42
P4
PJD
P34
P33
P32
P3I
PSD
P22
P2I
P2D
PIT
PI
5
P15
P14
PIS
P12
PH
PIO
POT
POD
P05
P04
P03
PQ2
POI
POO
R5T
MB89710
(CPU)
PIN
FUNCTION
PIN NAME
I/O
FUNCTION
P00-P07
I/O
I/O
PORT
0
(
SCAN FOR PANEL SWs
)
P10-P17
I/O
I/O
PORT
1
(
DATA BUS FOR DSP
)
XO
I
CRYSTAL OSC
INPUT
XI
0
CRYSTAL OSC OUTPUT
MOD
I
MODE SELECT INPUT
RES
I
RESET SIGNAL INPUT
(
LOW LEVEL ACTIVE
)
START
I
START SIGNAL INPUT
(
LOW LEVEL ACTIVE
)
NMI
I
NON MASKABLE INTERRUPT INPUT
P20-P22
I/O
I/O
PORT 2
(CHIP
SELECT FOR DSPs
)
P30-P37
I/O
I/O
PORT
3
(
CONTROL PORT FOR DSPs)
P40-P47
I/O
I/O
PORT
4
(
CONTROL PORT FOR LEDs
)
VSS
GROUND
(OV) INPUT
18

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