UPD753012GC NEC, UPD753012GC Datasheet - Page 30

• Manufacturer Part Number: UPD753012GC
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

TI1/TI2/
P12/INT2
Iuput buffer
PORT1.2
From clock
generator
f
f
f
f
x
x
x
x
/2
f
x
/2
/2
/2
/2
TM26
10
f
x
4
6
8
TM25
MPX
TM24 TM23 TM22 TM21 TM20
8
Timer event counter
TOUT F/F (channel 0)
Decoder
TM2
16-bit timer/event counter mode
Figure 6-8. Timer/Event Counter Block Diagram (channel 2)
Timer operation start
Modulo register for high level period setup (8)
CP
8
Count register (8)
8
Comparator (8)
TMOD2H
MPX (8)
8
8
Modulo register (8)
Clear
Internal bus
Timer/event counter
match signal (channel 1)
(When 16-bit timer/event
counter mode)
8
T2
8
Timer/event counter
clear signal (channel 1)
(When 16-bit timer/event
counter mode)
TMOD2
Match
TOUT
TGCE
F/F
Reset
Timer/event counter
match signal (channel 1)
(When carrier generator mode)
8
TOE2 REMC NRZB NRZ
Carrier generator mode
Reload
Overflow
TC2
From clock
output circuit
P22
output latch
PORT2.2
Output buffer
Port 2
input/output
PMGB.2
Timer/event counter
clock input (channel 1)
IRQT2 clear signal
RESET
INTT2
IRQT2
set signal
P22/PCL/PTO2