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User’s Manual U15798EJ2V0UD
CHAPTER 7 8-BIT TIMERS A0, B0
7.1 8-Bit Timer A0, B0 Functions
The
µ
PD780344, 780354, 780344Y, 780354Y Subseries have 8-bit timer A0 and 8-bit timer/event counter B0. The
operation modes listed in the following table can be set via mode register settings.
Table 7-1. Operation Modes
Channel
Timer A0
Timer B0
Mode
8-bit timer counter mode
Available
Available
(Discrete mode)
16-bit timer counter mode
Available
(Cascade connection mode)
Carrier generator mode
Available
PWM output mode
Not available
Available
(1) 8-bit timer counter mode (discrete mode)
The following functions can be used in this mode.
•
Interval timer with 8-bit resolution
•
External event counter with 8-bit resolution (timer B0 only)
•
Square wave output with 8-bit resolution
(2) 16-bit timer counter mode (cascade connection mode)
Operation as a 16-bit timer/event counter is enabled during cascade connection mode.
The following functions can be used in this mode.
•
Interval timer with 16-bit resolution
•
External event counter with 16-bit resolution
•
Square wave output with 16-bit resolution
(3) Carrier generator mode
The carrier clock generated by timer B0 is output in cycles set by timer A0.
(4) PWM output mode (timer B0 only)
Pulses are output using any duty factor set by timer B0.
Содержание mPD780344 Series
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