h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 778

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

Section 19 Motor Control PWM Timer
Bits 9 to 0—Duty (DT): Bits 9 to 0 set the PWM output duty according to the values in bits 9 to 0
in the buffer register that is transferred by a PWCYR2 compare match. A high level (or a low level
when the corresponding bit in PWPR2 is set to 1) is output from the time PWCNT2 is cleared by a
PWCYR2 compare match until a PWDTR2 compare match occurs. When all the bits are 0, there
is no high-level output period (no low-level output period when the corresponding bit in PWPR2
is set to 1).
Rev. 6.00 Feb 22, 2005 page 718 of 1484
REJ09B0103-0600
PWCNT2
(lower 10 bits)
PWCYR2
(lower 10 bits)
PWDTR2
(lower 10 bits)
PWM output
PWCNT2
(lower 10 bits)
PWCYR2
(lower 10 bits)
PWDTR2
(lower 10 bits)
PWM output
(M = 0)
PWM output
(0 < M < N)
PWM output
(N ≤ M)
Figure 19-7 Differences in PWM Output According to Duty Register Set Value
Figure 19-6 Duty Register Compare Match (OPS = 0 in PWPR2)
0
0
1
1
(OPS = 0 in PWPR2)
M
N
Compare match
M − 2
M
N
M − 1
M
N − 2
N − 1
N − 1
0
0