參數(shù)資料
型號(hào): M38837G6HP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80
文件頁(yè)數(shù): 22/81頁(yè)
文件大?。?/td> 766K
代理商: M38837G6HP
Rev.1.00
Oct 26, 2004
page 29 of 79
3883 Group
Fig. 25 PWM output timing when PWM register or PWM prescaler is changed
A
B
C
B
T
C
T2
=
PWM output
PWM register
write signal
PWM prescaler
write signal
(Changes “H” term from “A” to “B”.)
(Changes PWM period from “T” to “T2”.)
When the contents of the PWM register or PWM prescaler have changed, the PWM
output will change from the next period after the change.
TT
T2
Fig. 26 Structure of PWM prescaler (PWM0,PWM1,PWM2,PWM3,PWM4,PWM5)
PWMi prescaler (i=0,1, 2, 3, 4, 5)
b7
b6
b5
b4
b3
b2
b1
b0
Function
Set a PWM period as a count value of each prescaler.
The PWM period value is moved to the latch-circuit when
write.
The in-latch value is obtained when read.
W
R
Symbol
Address
When reset
PWM0PRE
003016
XXXXXXXX2
PWM1PRE
003216
XXXXXXXX2
PWM2PRE
003616
XXXXXXXX2
PWM3PRE
0FF416
XXXXXXXX2
PWM4PRE
0FF616
XXXXXXXX2
PWM5PRE
0FFA16
XXXXXXXX2
Function
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