HD64F2149 Datasheet, PDF (309/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Table 9.3 Resolution, PWM Conversion Period, and Carrier Frequency when ø = 10 MHz
Internal Clock
Frequency
ø
ø/2
ø/4
ø/8
ø/16
Resolution
100 ns
200 ns
400 ns
800 ns
1600 ns
PWM Conversion
Period
25.6 µs
51.2 µs
102.4 µs
204.8 µs
409.6 µs
Carrier Frequency
625 kHz
312.5 kHz
156.3 kHz
78.1 kHz
39.1 kHz
Bit 5—Reserved: This bit is always read as 1 and cannot be modified.
Bit 4—Reserved: This bit is always read as 0 and cannot be modified.
Bits 3 to 0—Register Select (RS3 to RS0): These bits select the PWM data register.
Bit 3
RS3
0
1
Bit 2
RS2
0
1
0
1
Bit 1
RS1
0
1
0
1
0
1
0
1
Bit 0
RS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Register Selection
PWDR0 selected
PWDR1 selected
PWDR2 selected
PWDR3 selected
PWDR4 selected
PWDR5 selected
PWDR6 selected
PWDR7 selected
PWDR8 selected
PWDR9 selected
PWDR10 selected
PWDR11 selected
PWDR12 selected
PWDR13 selected
PWDR14 selected
PWDR15 selected
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