gc80c520a CORERIVER Semiconductor, gc80c520a Datasheet - Page 57
gc80c520a
Manufacturer Part Number
gc80c520a
Description
Midas1.0 Family Mask Rom/eprom/romless 8-bit Turbo Microcontrollers
Manufacturer
CORERIVER Semiconductor
Datasheet
1.GC80C520A.pdf
(187 pages)
- Current page: 57 of 187
- Download datasheet (2Mb)
6.2.6.3 PWM counter
A PWM counter operates in the two modes. One is the 8-bit counter mode. In this mode, the PWM
counter operates as an 8-bit counter. A period of PWM output starts at the overflow of the counter. The
duty rate of the PWM output is determined by comparing the value of the 8-bit counter with that of
PWM0D or PWM1D. The mode is used for low frequency applications. The other is the 6-bit counter and
2-bit extension mode. In this mode, the period of the PWM output starts at the overflow of the lower 6-bits
of the counter. The duty rate of the PWM output is determined by comparing the value of the lower 6-bits
with that of PWM0D[5:0] or PWM1D[5:0]. In order to enhance resolutions, the pulse width of the PWM
output can lengthen by one clock cycle according to the rule between the 2-bit extension and
PWM0D[7:6]/PWM1D[7:6]. The mode is used for high frequency applications.
6.2.6.4 PWM frequency
The period of the PWM output are based on the prescaled PWM clock frequency. The PWM counter
clock frequency is determined by the value of PWM0CON[6:4] or PWM1CON[6:4]. Table 6-9 shows the
clock prescaling rate determined by the value of PWM0CON[6:4] or PWM1CON[6:4].
A PWM output pin (P3.4/PWM0 or P1.0/PWM1)
MiDAS1.0 Family
Table 6-9 PWM clock scaling rate determined by PWM0CON[6:4]/PWM1CON[6:4]
PWM0CON[6:4]/PWM1CON[6:4]
000
001
010
011
100
101
110
111
Page 57 of 187
PWM clock prescaling rate
F
F
F
F
OSC
F
F
F
F
OSC
OSC
OSC
OSC
OSC
OSC
OSC
/128
/16
/32
/64
/1
/2
/4
/8
Related parts for gc80c520a
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Coreriver Semiconductor
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
CRITOUCHCORE3.0-MLF32 PSOC(TOUCHCORE30-
Manufacturer:
Coreriver Semiconductor Co.
Part Number:
Description:
Digital-type / Capacitive Touch Sensor Engine
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
Flash / Isp / Iap 8-bit Turbo Microcontrollers
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
Eprom / Rom / Romless Based 8-bit Turbo Microcontrollers
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
Eprom/rom 8-bit Turbo Microcontrollers
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
Flash / Isp / Iap 8-bit Turbo Microcontrollers
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
4-bit Microcontrollers With Reduced 8051 Architecture With Reduced 8051 Architecture
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
4-bit Microcontrollers With Reduced 8051 Architecture
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
4-bit Microcontrollers With Reduced 8051 Architecture
Manufacturer:
CORERIVER Semiconductor
Datasheet:
Part Number:
Description:
Digital-type / Capacitive Touch Sensor Engine
Manufacturer:
CORERIVER Semiconductor
Datasheet: