p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 231

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

The lower four bits of PWDR specify the position of pulses added to the 16 basic pulses. An
additional pulse adds a high period (when OS = 0) with a width equal to the resolution before the
rising edge of a basic pulse. When the upper four bits of PWDR are 0000, there is no rising edge
of the basic pulse, but the timing for adding pulses is the same. Table 9.5 shows the positions of
the additional pulses added to the basic pulses, and figure 9.2 shows an example of additional
pulse timing.
Table 9.5
Lower 4 Bits 0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Figure 9.2 Example of Additional Pulse Timing (when Upper 4 Bits of PWDR = 1000)
Position of Pulses Added to Basic Pulses
No additional pulse
With additional pulse
1
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
2
3
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
4
5
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Resolution width
Basic pulse
6
Basic Pulse No.
7
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
8
Rev. 1.00 Sep. 21, 2006 Page 193 of 658
9
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes
Section 9 8-Bit PWM Timer (PWM)
10
11
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
12
REJ09B0310-0100
13
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
14
15
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes