UPD753012GC NEC, UPD753012GC Datasheet - Page 29

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

TI1/TI2/P12/INT2
Input buffer
PORT1.2
From clock
generator
Timer/event counter
output (channel 2)
–
TM16 TM15 TM14 TM13 TM12 TM11 TM10
f
f
x
x
f
f
f
x
x
x
/2
/2
/2
/2
/2
10
12
5
6
8
MPX
8
Figure 6-7. Timer/Event Counter Block Diagram (channel 1)
16 bit timer/event counter mode
Decoder
TM1
Timer/event counter match signal (channel 2)
(When 16-bit timer/event counter mode)
Timer operation start
CP
Modulo register (8)
Count register (8)
Comparator (8)
Selector
8
8
8
Clear
Internal bus
Timer/event counter comparator (channel 2)
(When 16-bit timer/event counter mode)
TMOD1
T1
Match
Timer/event counter reload signal (channel 2)
TOUT
F/F
Reset
T1
enable flag
TOE1
P21
output latch
PORT2.1
Output buffer
Port 2
input/output
mode
RESET
IRQT1 clear signal
INTT1
IRQT1
set signal
PMGB.2
P21/PTO1