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CHAPTER 16 8-/16-BIT PPG TIMER
16.1 Overview of 8-/16-bit PPG Timer
The 8-/16-bit PPG timer is a reload timer module with two channels (PPGC and PPGD)
that outputs a pulse in any cycle and at any duty ratio. A combination of two channels
provides:
• 8-bit PPG output 2-channel independent operation mode
• 16-bit PPG output operation mode
• 8+8-bit PPG output operation mode
The MB90360 series has two 8-/16-bit PPG timers. This section explains the functions of
PPGC/D. PPGE/F has the same functions as PPGC/D.
■ Functions of 8-/16-bit PPG Timer
The 8-/16-bit PPG timer consists of four 8-bit reload registers (PRLHC, PRLLC, PRLHD, and PRLLD)
and two PPG down counters (PCNTC and PCNTD).
• Individual setting of High and Low widths in output pulse enables an output pulse of any cycle and duty
ratio.
• The count clock can be selected from six internal clocks.
• The 8-/16-bit PPG timer can be used as an interval timer by generating an interrupt request at each
interval time.
• An external circuit enables the 8-/16-bit PPG timer to be used as a D/A converter.
