Chapter 7 16-Bit Timer/Event Counters 00 And 01; Functions Of 16-Bit Timer/Event Counters 00 And 01 - NEC 78K0 User Manual

CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 AND 01

µ
The PD780143 and 780144 incorporate 16-bit timer/event counter 00, and the
78F0148 incorporate 16-bit timer/event counters 00 and 01.
7.1

Functions of 16-Bit Timer/Event Counters 00 and 01

16-bit timer/event counters 00 and 01
• Interval timer
• PPG output
• Pulse width measurement
• External event counter
• Square-wave output
• One-shot pulse output
(1) Interval timer
16-bit timer/event counters 00 and 01 generate an interrupt request at the preset time interval.
(2) PPG output
16-bit timer/event counters 00 and 01 can output a rectangular wave whose frequency and output pulse width can
be set freely.
(3) Pulse width measurement
16-bit timer/event counters 00 and 01 can measure the pulse width of an externally input signal.
(4) External event counter
16-bit timer/event counters 00 and 01 can measure the number of pulses of an externally input signal.
(5) Square-wave output
16-bit timer/event counters 00 and 01 can output a square wave with any selected frequency.
(6) One-shot pulse output
16-bit timer/event counters 00 and 01 can output a one-shot pulse whose output pulse width can be set freely.
Note Available only for the
168
Note
have the following functions.
µ
PD780146, 780148, and 78F0148.
User's Manual U15947EJ2V0UD
*
µ
PD780146, 780148, and