gc80c510 CORERIVER Semiconductor, gc80c510 Datasheet - Page 194

• Manufacturer Part Number: gc80c510
• Description: Eprom/rom 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

13.16 P2 (A0h) : Port 2 Register
several other SFRs.
[About the alternative pins and description]
In addition, all the pins have an alternative function listed below. Each of the functions is controlled by
Alternative Pin
ADC11 ~ ADC7
This register functions as a general purpose I/O port. The initial value of P2 is *1111111.
Bit No.
Port 2
CLO
T0
7
-
-
Timer0 Input or T0 Input. (Refer to TMOD register)
A “1” to “0” transition on this T0 input pin will increment the timer0 counter.
ADC Analog Input 11 ~ 7
System Clock Output to P2[6]. (Refer to ALTSEL register)
R/W(1)
P2[6]
ADC7
P2.6
CLO
6
R/W(1)
P2[5]
ADC8
P2.5
5
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R/W(1)
P2[4]
ADC9
P2.4
4
Description
R/W(1)
ADC10
P2[3]
P2.3
3
R/W(1)
ADC11
P2[2]
Appendix B: SFR description
P2.2
2
R/W(1)
P2[1]
P2.1
1
R/W(1)
P2[0]
P2.0
T0
0