Oki MSM80C154S - Manual (Page 3)

261
MSM80C154S/83C154S
¡ Semiconductor
T2CON
PCH
CONTROL SIGNAL
SPECIAL
FUNCTION
REGISTER
ADDRESS
DECODER
PLA
IR AIR
C-ROM
TR1 TR2 ACC
ALU
BR PSW
RAMDP
R/W AMP
RAM
256 WORDS
x 8BITS
TH2
RCAP2H RCAP2L
DPH
PCL SP
ROM
16K WORDS x 8BITS
SENSE AMP
DPL
PCLL
PORT 2
PORT 0
PCON
IOCON
OSC and TIMING
PORT 1
PORT 3
P2.0
P2.7
P0.0
P0.7
P1.0
P1.7
P3.0
P3.7
XTAL1
XTAL2
ALE
RESET
PSEN
EA
TH1 TL1 TH0 TL0 TMOD TCON IE IP SBUF(T) SBUF(R)
INTERRUPT
TIMER/COUNTER 0 & 1 SERIAL IO
SCON
SIGNAL R/W
TIMER/
COUNTER 2
PCHL
ADDRESS DECODER
TL2
BLOCK DIAGRAM (MSM83C154S)