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User’s Manual U15104EJ2V0UD
CHAPTER 6 8-BIT TIMER/EVENT COUNTERS 50 TO 53
6.1 Functions of 8-Bit Timer/Event Counters 50 to 53
8-bit timer/event counters 50 to 53 have the following two modes.
• Mode in which an 8-bit timer/event counter is used alone (single mode)
• Mode in which the two timer/event counters are cascaded (cascade mode with a resolution of 16 bits)
These two modes are explained below.
(1) Mode in which an 8-bit timer/event counter is used alone (single mode)
The timer/event counter operates as an 8-bit timer/event counter.
In this mode, the following functions can be used.
•
Interval timer
•
External event counter
•
Square wave output
•
PWM output
Caution
Timer 53 can be used only as an interval timer since it does not include timer input and output
pins.
(2) Mode in which the two timer/event counters are cascaded (cascade mode with a resolution of 16 bits)
By connecting timer 50 or timer 52 as a lower timer and timer 51 or timer 53 as a higher timer in cascade,
they operate as a 16-bit timer/event counter.
In this mode, the following functions can be used:
•
Interval timer with 16-bit resolution
•
External event counter with 16-bit resolution
•
Square wave output with 16-bit resolution
Figures 6-1 to 6-4 show the block diagrams of 8-bit timer/event counters 50 to 53.
Содержание mPD178053
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