gc80c520a CORERIVER Semiconductor, gc80c520a Datasheet - Page 183

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

15.41 Alternative Function Selection Register (ALTSEL)
This register is only available in 8/10/20 DIP/SOP package. Don’t use this register in 40-DIP/44-PLCC/44-
LQFP package.
Bit No.
E3h
Symbol
EAINT0
P0INT1
P0INT0
ADC1
ADC0
TX
RX
-
MiDAS1.0 Family
7
-
ADC1 Analog Input Selection Enable.
0: Disables the ADC1 analog input to Port 1.1.
1: Enables the ADC1 analog input to Port 1.1.
ADC0 Analog Input Selection Enable.
0: Disables the ADC0 analog input to Port 0.0.
1: Enables the ADC0 analog input to Port 0.0.
Function
Reserved.
INT0 Input Selection Enable.
0: Disables the INT0 input to EA pin.
1: Enables the INT0 input to EA pin.
INT1 Input Selection Enable.
0: Disables the INT1 input to Port 0.2.
1: Enables the INT1 input to Port 0.2.
INT0 Input Selection Enable.
0: Disables the INT0 input to Port 0.1.
1: Enables the INT0 input to Port 0.1.
TX Input/Output Selection Enable.
0: Disables the TX input/output to Port 0.1.
1: Enables the TX input/output to Port 0.1.
RX Output Selection Enable.
0: Disables the RX output to Port 0.0.
1: Enables the RX output to Port 0.0.
6
-
EAINT0
R/W(0)
5
P0INT1
R/W(0)
Page 183 of 187
4
P0INT0
R/W(0)
3
R/W(0)
TX
2
R/W(0)
RX
1
R/W(0)
PWM0
0
ALTSEL