m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 149
m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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TIMER A
7.6 Pulse width modulation (PWM) mode
7-46
Fig. 7.6.7 Operation example of 8-bit pulse width modulator
PWM pulse output
Timer Ai interrupt
underflow signal
8-bit prescaler’s
from TAi
Count source
input signal
request bit
TAi
IN
OUT
pin’s
pin
f
n: Reload register’s high-order 8 bits
m: Reload register’s low-order 8 bits
i
: Frequency of count source
Note: The above applies when n = “02
The 8-bit prescaler counts the count source.
The 8-bit pulse width modulator counts the 8-bit prescaler’s underflow signal.
(falling edge of TAi
IN
7905 Group User’s Manual Rev.1.0
pin’s input signal) is selected.
Cleared to “0” when interrupt request is accepted or cleared by software.
16
”, m = “02
(1 / f
(1 / f
(1 / f
i
)
16
(m + 1)
i
i
)
)
”, and an external trigger
(m + 1)
(m + 1)
(n)
(2
8
– 1)
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