Filter
Top Products
284
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 2
8
/φ 2/φ to 2
9
/φ 1/φ to 2
16
/φ 2/φ to 2
17
/φ
2/φ(83.3 ns)
2/φ to 2
9
/φ 2
2
/φ to 2
10
/φ 2/φ to 2
17
/φ 2
2
/φ to 2
18
/φ
2
2
/φ(167 ns) 2
2
/φ to 2
10
/φ 2
3
/φ to 2
11
/φ 2
2
/φ to 2
18
/φ 2
3
/φ to 2
19
/φ
2
3
/φ(333 ns) 2
3
/φ to 2
11
/φ 2
4
/φ to 2
12
/φ 2
3
/φ to 2
19
/φ 2
4
/φ to 2
20
/φ
2
4
/φ(667 ns) 2
4
/φ to 2
12
/φ 2
5
/φ to 2
13
/φ 2
4
/φ to 2
20
/φ 2
5
/φ to 2
21
/φ
2
9
/HCLK(128µs)
2
9
/HCLK to
2
17
/HCLK
2
10
/HCLK to 2
18
/
HCLK
2
9
/HCLK to
2
25
/HCLK
2
10
/HCLK to 2
26
/
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.