UPD75518 NEC, UPD75518 Datasheet - Page 70

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

P13/
TI0
Input buffer
PORT1.3
Note Instruction execution
From the
clock
generator
(See Fig. 4-11.)
TM06 TM05 TM04 TM03 TM02
MPX
8
Timer operation start signal
SET1
Note
Fig. 4-24 Block Diagram of the Timer/Event Counter
TM0
8
CP
Internal bus
Modulo register (8)
Count register (8)
Comparator (8)
8
8
8
Clear signal
TMOD0
T0
Match
TOUT
F/F
Reset
TO enable
flag
TOE0
P20
output
latch
signal
PORT2.0
Port 2
input/
output
mode
Output
buffer
Bit 2 of PGMB
RESET
IRQT0 clear
signal
INTT0
IRQT0
set signal
To serial
interface
P20/PTO0