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CHAPTER 16 8-/16-BIT PPG TIMER
●8+8-bit PPG output operation mode
The 8 + 8-bit PPG output operation mode causes the PPGC of the 2-channel modules to operate as an 8-bit
prescaler and the underflow output of the PPGC to operate as the count clock of the PPGD.
Table 16.1-3 shows the interval times in this mode.
Table 16.1-3 Interval Times in 8+8-bit PPG Output Operation Mode
Count Clock Cycle PPGC PPGD
Interval Time Output Pulse Time Interval Time Output Pulse Time
1/φ(41.7 ns) 1/φ to 28/φ2/φ to 29/φ1/φ to 216/φ2/φ to 217/φ
2/φ(83.3 ns) 2/φ to 29/φ22/φ to 210/φ2/φ to 217/φ22/φ to 218/φ
22/φ(167 ns) 22/φ to 210/φ23/φ to 211/φ22/φ to 218/φ23/φ to 219/φ
23/φ(333 ns) 23/φ to 211/φ24/φ to 212/φ23/φ to 219/φ24/φ to 220/φ
24/φ(667 ns) 24/φ to 212/φ25/φ to 213/φ24/φ to 220/φ25/φ to 221/φ
29/HCLK(128µs) 29/HCLK to
217/HCLK
210/HCLK to 218/
HCLK 29/HCLK to
225/HCLK
210/HCLK to 226/
HCLK
HCLK: Oscillation clock
φ : Machine clock
The parenthesized values are provided when the oscillation clock operates at 4 MHz and the machine clock operates
at 24 MHz.