參數(shù)資料
型號: M30220FCGP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP144
封裝: 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 138/161頁
文件大小: 0K
代理商: M30220FCGP
Timer A
Mitsubishi microcomputers
M30220 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
78
Figure 1.13.14. Example of how a 16-bit pulse width modulator operates
Figure 1.13.15. Example of how an 8-bit pulse width modulator operates
1 / fj X (2
– 1)
16
Count source
TAiIN pin
input signal
PWM pulse output
from TAiOUT pin
Condition : Reload register = 000316, when external trigger
(rising edge of TAiIN pin input signal) is selected
Trigger is not generated by this signal
“H”
“L”
Timer Ai interrupt
request bit
“1”
“0”
Cleared to “0” when interrupt request is accepted, or cleared by software
fj : Frequency of count source
(f1, f8, f32, fC132)
Note: n = 000016 to FFFE16.
1 / fj X n
Count source (Note1)
TAiIN pin input signal
Underflow signal of
8-bit prescaler (Note2)
PWM pulse output
from TAiOUT pin
“H”
“L”
“1”
“0”
Timer Ai interrupt
request bit
Cleared to “0” when interrupt request is accepted, or cleaerd by software
fj : Frequency of count source
(f1, f8, f32, fC132)
Note 1: The 8-bit prescaler counts the count source.
Note 2: The 8-bit pulse width modulator counts the 8-bit prescaler's underflow signal.
Note 3: m = 0016 to FF16; n = 0016 to FE16.
Condition : Reload register high-order 8 bits = 0216
Reload register low-order 8 bits = 0216
External trigger (falling edge of TAiIN pin input signal) is selected
1 / fj X (m + 1) X (2 – 1)
8
1 / fj X (m + 1) X n
1 / fj X (m + 1)
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