gc80c590ae CORERIVER Semiconductor, gc80c590ae Datasheet - Page 37

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

P9DIR (BEh) : PORT 9 Input/Output Control Register
P9PUP (E9h) : PORT 9 Pull-up Control Register
P9 (B6h) : PORT 9 Register
P9DIR.7 P9DIR.6 P9DIR.5 P9DIR.4 P9DIR.3 P9DIR.2 P9DIR.1 P9DIR.0
P9PUP.7 P9PUP.6 P9PUP.5 P9PUP.4 P9PUP.3 P9PUP.2 P9PUP.1 P9PUP.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 : PORT9[7:0]
P9.7
3.3V operation and push-pull output.
A pull-up is switched on/off by changing the value of the P9UP register.
I/O direction is determined by the value of the P9DIR register.
PORT 9 Description
P9DIR.X : 1 = Input (Default) / 0 = Output
P9PUP.X : 0 = Pull-up resistor OFF, 1 = Pull-up resistor ON (Default)
P9.6
P9.5
Semiconductor Co., Ltd.
P9.4
P9.3
P9.2
P9.1
P9.0
CPU BUS
P9.0
SFR
Digital Input
QB
Q
P9DIR.0
MiDAS2.0 Family
Pull-
up
P9PUP.0
[37]
P9.0