M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 129
M37702E6BFS
Manufacturer Part Number
M37702E6BFS
Description
EPROM MCU/8BIT CMOS EMULATION CH
Manufacturer
Renesas Electronics America
Datasheet
1.M37702E6BFS.pdf
(524 pages)
Specifications of M37702E6BFS
Accessory Type
Emulator EPROM MCU
For Use With/related Products
7702
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M37702E6BFS
Manufacturer:
MITSUBISHI/三菱
Quantity:
20 000
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5.6 Pulse width modulation (PWM) mode
In this mode, the timer continuously outputs pulses which have an arbitrary width. (Refer to Table 5.6.1.)
Figure 5.6.1 shows the structures of the timer Ai mode register and timer Ai register in the PWM mode.
Table 5.6.1 Specifications of PWM mode
Count source
Count operation
PMW period/“H” level width
Count start condition
Count stop condition
Interrupt request occurrence timing
TAi
TAi
Read from timer Ai register
Write to timer Ai register
Note: The trigger is generated with the count start bit = “1.”
IN
OUT
pin function
pin function
Item
f
<16-bit pulse width modulator>
<8-bit pulse width modulator>
When count start bit is cleared to “0.”
At falling of PWM pulse
Programmable I/O port or trigger input
PWM pulse output
An undefined value is read out.
2
, f
Down-count (operating as an 8-bit or 16-bit pulse width modulator)
Reload register’s contents are reloaded at rising of PWM pulse and
counting continues.
A trigger generated during counting does not affect the counting.
When a trigger is generated. (Note)
Internal or external trigger can be selected by software.
While counting is stopped
When a value is written to timer Ai register, it is written to both
reload register and counter.
While counting is in progress
When a value is written to timer Ai register, it is written to only
reload register. (Transferred to counter at next reload time.)
Period =
“H” level width =
Period =
“H” level width =
7702/7703 Group User’s Manual
16
, f
64
m: Timer Ai register low-order 8 bits setting value
n: Timer Ai register high-order 8 bits setting value
, or f
(m + 1)(2
(2
512
16
f
5.6 Pulse width modulation (PWM) mode
i
– 1)
f
i
n
f
8
i
[s]
n(m + 1)
– 1)
[s]
f
Specifications
i
[s]
n: Timer Ai register setting value
[s]
TIMER A
5–39
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