gc80c590ae CORERIVER Semiconductor, gc80c590ae Datasheet - Page 36

• Manufacturer Part Number: gc80c590ae
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

P8DIR (BDh) : PORT 8 Input/Output Control Register
P8PUP (E1h) : PORT 8 Pull-up Control Register
P8 (B5h) : PORT 8 Register
P8DIR.7 P8DIR.6 P8DIR.5 P8DIR.4 P8DIR.3 P8DIR.2 P8DIR.1 P8DIR.0
P8PUP.7 P8PUP.6 P8PUP.5 P8PUP.4 P8PUP.3 P8PUP.2 P8PUP.1 P8PUP.0
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(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1)
6.5. I/O Ports : PORT8[7:0]
P8.7
3.3V operation and push-pull output.
A pull-up is switched on/off by changing the value of the P8UP register.
I/O direction is determined by the value of the P8DIR register.
PORT 8 Description
P8DIR.X : 1 = Input (Default) / 0 = Output
P8PUP.X : 0 = Pull-up resistor OFF, 1 = Pull-up resistor ON (Default)
P8.6
P8.5
Semiconductor Co., Ltd.
P8.4
P8.3
P8.2
P8.1
P8.0
CPU BUS
P8.0
SFR
Digital Input
QB
Q
P8DIR.0
MiDAS2.0 Family
Pull-
up
P8PUP.0
[36]
P8.0