UPD784938 Datasheet, PDF (219/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

Figure 9-1. Timer/Event Counter 0 Block Diagram
Internal bus
1/8
External interrupt
mode register 1
(INTM1)
ES31 ES30
P24/INTP3
Edge
detection
circuit
8/16
Compare register
(CR00)
16
16
Match
16
8 ^{Capture/compare control}
register 0 (CRC0)
MOD1 MOD0
CLR01
1/8
ENT01 ALV1 ENT00 ALV0
Timer output
control register
(TOC)
PWM/PPG
output control
Output
control
circuit
P34/TO0
Compare register
(CR01)
INTC00
16
fXX Prescaler
fXX/1,024
fXX/512
fXX/256
fXX/128
fXX/64
fXX/32
fXX/16
fXX/8
fXX/4
Selector
Capture trigger
16
16
Timer counter 0
(TM0)
Prescaler mode
register 0
(PRM0)
PRS03 PRS02 PRS01 PRS00
8
16
Capture register
(CR02)
16
16
Clear
Overflow
Timer control
register 0
(TMC0)
Internal bus
RESET
Output
control
circuit
P35/TO1
INTC01
CE0 OVF0
ST1 RT1 OS1 ST0 RT0 OS0
One-shot pulse
1/8 control register
1/8
(OSPC)