h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 299

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 9.3
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.
Internal Clock
Frequency
Bit 3
RS3
0
1
/2
/4
/8
/16
Bit 2
RS2
0
1
0
1
Resolution, PWM Conversion Period, and Carrier Frequency when = 20 MHz
Bit 1
RS1
0
1
0
1
0
1
0
1
Resolution
50 ns
100 ns
200 ns
400 ns
800 ns
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
PWM Conversion
Period
12.8 s
25.6 s
51.2 s
102.4 s
204.8 s
Section 9 8-Bit PWM Timers [H8S/2138 Group]
Rev. 4.00 Jun 06, 2006 page 245 of 1004
Carrier Frequency
1250 kHz
625 kHz
312.5 kHz
156.3 kHz
78.1 kHz
REJ09B0301-0400