gc80c520a CORERIVER Semiconductor, gc80c520a Datasheet - Page 182

• Manufacturer Part Number: gc80c520a
• Description: Midas1.0 Family Mask Rom/eprom/romless 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

bit PWM circuit. In 8-bit counter mode, to program the required PWM output, you load the appropriate
initialization values into the 8-bit data register (PWM1D), and in (6+2)-bit counter mode, you load the
appropriate initialization values into the 6-bit reference data register (PWM1D[5:0]) and the 2-bit
extension data register (PWM1D[7:6]).
15.39 Accumulator (ACC/A)
This register serves as the accumulator for arithmetic operations.
15.40 ADC Clock and Port Control Register (ADCSEL)
Bit No.
Bit No.
E0h
E2h
Symbol
ADIV2
ADIV1
ADIV0
ADC3
ADC2
-
R/W(0)
R/W(0)
ADIV2
ACC.7
7
7
Function
ADC Input Clock Divide
Reserved.
ADC3 Analog Input Selection Enable.
0: Disables the ADC3 analog input to Port 1.3.
1: Enables the ADC3 analog input to Port 1.3.
ADC2 Analog Input Selection Enable.
0: Disables the ADC2 analog input to Port 1.2.
1: Enables the ADC2 analog input to Port 1.2.
ADIV2
0
0
0
0
1
R/W(0)
R/W(0)
ADIV1
ACC.6
6
6
R/W(0)
ADIV0
ADIV1
R/W(0)
ACC.5
5
0
0
1
1
0
5
R/W(0)
ACC.4
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4
-
-
4
ADIV0
0
1
0
1
0
R/W(0)
ADC3
R/W(0)
ACC.3
3
3
Result
2 divide
4 divide
8 divide
16 divide
16 divide
R/W(0)
ADC2
R/W(0)
ACC.2
2
2
R/W(0)
Appendix B: SFR description
ADC1
R/W(0)
ACC.1
1
1
R/W(0)
ADC0
R/W(0)
ACC.0
0
0
ADCSEL
ACC/A