參數(shù)資料
型號(hào): MC68HC05BS8FB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.2 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 83/128頁
文件大?。?/td> 9691K
代理商: MC68HC05BS8FB
7-2
MC68HC05BS8
PULSE WIDTH MODULATION
7
7.1.1
General Purpose Pulse Width Modulator Register (GPWM)
ODE - Open Drain Enable
1 (set)
GPWM output congured as open drain output.
0 (clear) –
GPWM output congured as direct drive output.
GPW5:0 - GPW Data
These six bits contain the pulse width modulator data for the GPWM.
7.2
Raster Positioning Pulse Width Modulator
The RSPWM consists of a comparator and a 7-bit counter clocked by the positive edge of a clock
from the RCLK pin, and reset by the an active high signal from the PB7 pin. The RSPWM output
will be low after a counter reset, and high when the counter value matches the value in the
RSPWM register. Figure 7-3 shows example timings.
Figure 7-2 GPWM Output Conguration
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
GPWMR
$0010
ODE
CRE
GPW5 GPW4 GPW3 GPW2 GPW1 GPW0 0000 0000
GPWMR bit 7
ODE
Protection
+
VDD
P
N
GPWM
VDD
R
GPWM logic
TPG
56
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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