gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 140

• Manufacturer Part Number: gc80c521a
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

P2SEL.7 P2SEL.6 P2SEL.5 P2SEL.4 P2SEL.3 P2SEL.2 P2SEL.1 P2SEL.0
P3SEL.7 P3SEL.6 P3SEL.5 P3SEL.4 P3SEL.3 P3SEL.2 P3SEL.1 P3SEL.0
P4SEL.7 P4SEL.6 P4SEL.5 P4SEL.4 P4SEL.3 P4SEL.2 P4SEL.1 P4SEL.0
R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0)
R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0) R/W(0)
R/W(0) R/W(0) R/W(1) R/W(1) R/W(0) R/W(0) R/W(0) R/W(0)
P2SEL
P3SEL
P4SEL
Appendix B :
0 = Pull-up resistor ON (Default)
1 = Pull-up resistor OFF.
0 = Pull-up resistor ON (Default)
1 = Pull-up resistor OFF.
P4SEL.7 : 0 = Pull-down resistor ON (Default)
P4SEL.5 : 0 = Pull-up resistor ON.
P4SEL.4 : 0 = Pull-up resistor ON.
P4SEL.X : 0 = Pull-up resistor ON (Default).
(D3h) : Port 2 Pull-up Control Register
(D4h) : Port 3 Pull-up Control Register
(D5h) : Port 4 Pull-up/down Control Register
1 = Pull-down resistor OFF.
1 = Pull-up resistor OFF (Default).
1 = Pull-up resistor OFF (Default).
1 = Pull-up resistor OFF.
SFR Description [D3h ~ D8h]
ADCENB2.7 ADCENB2.6 ADCENB2.5 ADCENB2.4 ADCENB2.3 ADCENB2.2 ADCENB2.1 ADCENB2.0
ADCENB3.7 ADCENB3.6 ADCENB3.5 ADCENB3.4 ADCENB3.3 ADCENB3.2 ADCENB3.1 ADCENB3.0
WDMOD
R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1)
R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1)
R/W(0) R/W(1) R/W(0) R/W(1) R/W(0) R/W(0) R/W(0) R/W(0)
ADCENB2
ADCENB3
WDCON
0 = ADC2 channel ON / 1 = ADC0 channel OFF (Default)
0 = ADC3 channel ON / 1 = ADC0 channel OFF (Default)
WDMOD : WDT mode selection flag.
POR
EPFI
PFI
WDIF
WTRF
EWT
RWT
POR
(D8h) : Watchdog Timer & Power Status Register
: Power-on reset flag.
: Enable power-fail interrupt.
: Power-fail interrupt flag.
: Watchdog timer interrupt flag.
: Watchdog timer reset flag.
: Watchdog timer reset enable.
: Restart watchdog timer.
(D6h) : ADC Channel Enable Bar Register (P2 port)
(D7h) : ADC Channel Enable Bar Register (P3 port)
EPFI
(14/19)
PFI
MiDAS1.0B Family
WDIF
WTRF
EWT
RWT
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