UPD784938 Datasheet, PDF (213/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 8 OUTLINE OF TIMER
The µPD784938 incorporates three timer/event counter units and one timer unit.
These timer/event counter and timer units can be used as seven units of timer/event counters because the µPD784938
supports seven interrupt requests.
Table 8-1. Operations of Timer
Name
Item
Count
width
8 bits
16 bits
Operation Interval timer
mode
External event counter
One-shot timer
Function Timer output
Toggle output
PWM/PPG output
One-shot pulse output^Note
Real-time output
Pulse width measurement
Number of interrupt requests
Timer/Event
Counter 0
—
√
2 ch
√
—
2 ch
√
√
√
—
1 input
2
Timer/Event
Counter 1
√
√
2 ch
√
—
—
—
—
—
√
1 input
2
Timer/Event
Counter 2
√
√
2 ch
√
√
2 ch
√
√
—
—
2 inputs
2
Timer 3
√
√
1 ch
—
—
—
—
—
—
—
—
1
Note
In the one-shot pulse output function, the pulse output level activated by software and inactivated by hardware (an
interrupt request signal).
This function is different in nature from the one-shot timer function of timer/event counter 2.
Preliminary User’s Manual U13987EJ1V0UM00
213