h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 322

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

Section 10 14-Bit PWM D/A
2. OS = 1 (DADR corresponds to T
Rev. 4.00 Jun 06, 2006 page 268 of 1004
REJ09B0301-0400
a. CFS = 0 [base cycle = resolution (T) 64]
b. CFS = 1 [base cycle = resolution (T) 256]
t
t
t
t
f1
H1
f1
H1
= t
= t
+ t
+ t
t
t
H1
H1
f2
f2
H2
H2
= t
= t
t
t
+ t
+ t
f1
f1
f3
f3
H3
H3
= · · · = t
= · · · = t
+ · · · + t
+ · · · + t
f255
f63
t
t
H2
H2
H255
H63
= t
= t
Figure 10.4 (3) Output Waveform
Figure 10.4 (4) Output Waveform
f64
t
t
+ t
f2
f2
f256
+ t
= T
H64
H256
H
= T
)
= T
1 conversion cycle
1 conversion cycle
= T
256
H
64
H
t
t
H3
H3
t
t
H255
H63
t
t
f255
f63
t
t
H256
H64
t
t
f256
f64