参数资料
型号: ST7PLU09MCTRE
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8
封装: 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8
文件页数: 90/124页
文件大小: 1995K
代理商: ST7PLU09MCTRE
On-chip peripherals
ST7LUS5, ST7LU05, ST7LU09
10.2.2
Main features
12-bit up counter with 12-bit autoreload register (ATR)
Maskable overflow interrupt
PWM signal generator
Frequency range 2 kHz to 4 MHz (@ 8 MHz fCPU)
Programmable duty-cycle
Polarity control
Maskable Compare interrupt
Output Compare Function
Figure 31.
Block diagram
10.2.3
Functional description
PWM mode
This mode allows a Pulse Width Modulated signals to be generated on the PWM0 output pin
with minimum core processing overhead. The PWM0 output signal can be enabled or
disabled using the OE0 bit in the PWMCR register. When this bit is set the PWM I/O pin is
configured as output push-pull alternate function.
Note:
CMPF0 is available in PWM mode (see PWM0CSR register description on page 74).
ATCSR
CMPIE
OVFIE
OVF
CK0
CK1
0
12-BIT AUTORELOAD VALUE
12-BIT UPCOUNTER
CMPF0 bit
CMPF0
CMP INTERRUPT
REQUEST
OVF INTERRUPT
REQUEST
fCPU
ATR
PWM
GENE
RATION
POL-
ARITY
OP0 bit
PWM0
COMP-
PARE
fCOUNTER
fPWM
OUTPUT
CONTROL
OE0 bit
CNTR
(1ms timebase
fLTIMER
DCR0H
DCR0L
Update on OVF Event
Preload
@ 8 MHz)
70
on OVF Event
0
1
12-BIT DUTY CYCLE VALUE (shadow)
OE0 bit
IF OE0=1
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