µ
PD75512
24
Internal bus
8
8
SET1*
TM07 TM06 TM05 TM04 TM03 TM02 TM01 TM00
TM0
PORT1.3
Input
buffer
P13/TI0
From the
clock
generator
MPX
*:Instruction execution
Timer operation start signal
CP
8
8
Modulo register (8)
Comparator (8)
Count register (8)
Clear
T0
TMOD0
Reset
TOE0
PORT2.0
Bit 2 of PGMB
To serial interface
P20/PTO0
INTT0
IRQT0
set signal
(
)
RESET
IRQT0
clear signal
Output
buffer
TOUT
F/F
TO
enable
flag
P20
output
latch
Port 2
input/
output
mode
Coinci-
dence
8
Fig. 6-5 Timer/Event Counter Block Diagram
(Refer to Fig. 4-11.)