h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 323

• Manufacturer Part Number: h8s-2158
• Description: Renesas 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 B'0000, there is no rising edge
of the basic pulse, but the timing for adding pulses is the same. Table 10.5 shows the positions of
the additional pulses added to the basic pulses, and figure 10.2 shows an example of additional
pulse timing.
Table 10.5 Position of Pulses Added to Basic Pulses
Lower 4 Bits
Figure 10.2 Example of Additional Pulse Timing (When Upper 4 Bits of PWDR = B'1000)
B'0000
B'0001
B'0010
B'0011
B'0100
B'0101
B'0110
B'0111
B'1000
B'1001
B'1010
B'1011
B'1100
B'1101
B'1110
B'1111
No additional pulse
With additional pulse
0
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
1
2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
3
4
Resolution width
Basic pulse
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
5
Basic Pulse No.
6
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
7
Rev. 3.00 Jan 25, 2006 page 271 of 872
8
Section 10 8-Bit PWM Timer (PWM)
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes
9
10
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
11
12
REJ09B0286-0300
Yes
Yes
Yes
Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
Yes Yes Yes
13
14
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
15