¡ Semiconductor
ML63187/63189B
BLOCK DIAGRAM (ML63187)
An asterisk (*) indicates the port secondary function.
indicates that the power is supplied
to the circuits corresponding to the signal names inside
from V
DDI
(power supply for
interface).
nX-4/250
CBR
H
L
RA
PC
TIMING
CON-
TROL
ROM
16KW
EBR
SP
RSP
X
Y
C
A
G
MIE
Z
BUS
CON-
TROL
ALU
STACK
CAL : 16-level
REG : 16-level
INSTRUCTION
DECODER
IR
INT
4
RAM
1024N
TIMER
8bit
¥
4
TM0CAP/TM1CAP*
TM0OVF/TM1OVF*
T02CK*
T13CK*
RESET
RST
INT
INT187
INT
1
TBC
SFT
SCLK*
SIN*
SOUT*
BLD
DATA BUS
4
TST1
TST2
TST
XT0
XT1
OSC0
OSC1
INT
1
OSC
INT
1
100HzTC
INT
1
MELODY
MD
MDB
WDT
V
DDH
V
DD
CB1
CB2
V
DD1
V
DD2
V
DD3
V
DD4
V
DD5
C1
C2
V
DDL
V
DDI
V
SS
BIAS
LCD
&
DSPR
COM1-16
SEG0-63
BACK
UP
INT
2
I/O
PORT
PB.0-PB.3
PE.0-PE.3
4/35
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