h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 773

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

19.2.5
PWCYR is a 16-bit read/write register that sets the PWM conversion cycle. When a PWCYR
compare match occurs, PWCNT is cleared and data is transferred from the buffer register
(PWBFR) to the duty register (PWDTR). PWCYR1 is used for the channel 1 conversion cycle
setting, and PWCYR2 for the channel 2 conversion cycle setting.
PWCYR should be written to only while PWCNT is stopped. A value of H'FC00 must not be set.
PWCYR is initialized to H'FFFF upon reset, and in standby mode, watch mode * , subactive
mode * , subsleep mode * , and module stop mode.
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
Bit
Initial value
Read/Write
Compare match
PWCNT
(lower 10 bits)
PWCYR
(lower 10 bits)
U-mask and W-mask versions, and H8S/2635 Group only.
These functions cannot be used with the other versions.
PWM Cycle Registers 1 and 2 (PWCYR1, PWCYR2)
15
—
—
1
14
—
—
1
0
13
—
—
Figure 19-3 Cycle Register Compare Match
1
1
12
—
—
1
11
—
—
1
10
—
— R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
1
9
1
N
8
1
Rev. 6.00 Feb 22, 2005 page 713 of 1484
7
1
Section 19 Motor Control PWM Timer
6
1
Compare match
5
1
N − 2
4
1
N − 1
3
1
REJ09B0103-0600
2
1
0
1
1
1
0
1