hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 368

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 Timers
Figure 9.22 and table 9.20 show examples of event counter PWM operation.
Note: N
Table 9.20 Examples of Event Counter PWM Operation
Conditions: f
Note: * t
Rev. 7.00 Mar 10, 2005 page 326 of 652
REJ09B0042-0700
Clock Source
Selection
φ/2
φ/4
φ/8
φ/16
φ/32
φ/64
condition, do not set ECPWME in AEGSR to 1.
off
t
dr
off
and N
minimum width
= T × (N
t
cm
ECPWDR value (N
osc
= T × (N
Clock Source
Cycle (T) *
1 µs
2 µs
4 µs
8 µs
16 µs
32 µs
= 4 MHz, f
cm
dr
above must be set so that N
+1)
Figure 9.22 Event Counter Operation Waveform
cm
t
on
+1)
φ
= 2 MHz, high-speed active mode, ECPWCR value (N
ECPWCR
Value (N
H'7A11
D'31249
dr
) = H'16E3
cm
)
ECPWDR
Value (N
H'16E3
D'5859
T
T
T
T :
N
N
dr
on
off
cm
dr
cm
< N
:
:
:
: One conversion period
: Value of ECPWCRH and ECPWCRL
cm
Clock input enabled time
Clock input disabled time
ECPWM input clock cycle
Value of ECPWDRH and ECPWDRL
Fixed low when Ndr = H'FFFF
dr
. If the settings do not satisfy this
)
t
(N
5.86 ms
11.72 ms
23.44 ms
46.88 ms
93.76 ms
187.52 ms 1000.0 ms 812.48 ms
off
dr
= T •
+ 1)
t
(N
31.25 ms
62.5 ms
125.0 ms
250.0 ms
500.0 ms
cm
cm
= T •
+ 1)
cm
t
25.39 ms
50.78 ms
101.56 ms
203.12 ms
406.24 ms
on
) = H'7A11,
= t
cm
– t
off