gc80c590ae CORERIVER Semiconductor, gc80c590ae Datasheet - Page 30

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

P2 (A0h) : PORT 2 Register
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 : PORT2[7:0]
P2.7
An 8-bit 5V tolerant input quasi-bidirectional port (Intel 8052 compatible).
The output is fully driven (push-pull) when P2 drives the high byte of address to access external RAM or PCA0
drives output signals (C0EXn).
Read-Modify-Write instructions do not read port pin but read SFR register.
An available alternative input function when the corresponding SFR bit is “1”.
PORT 2 Description
ANL
PCA0 inputs : C0EX0(P2.0), C0EX1(P2.1), C0EX2(P2.2), C0EX3(P2.3), C0EX4(P2.4), C0EX5(P2.5)
UART1 : RXD1(P2.6), TXD1(P2.7)
P2.6
/
OPL
P2.5
/
XRL
Semiconductor Co., Ltd.
P2.4
/
JBC
P2.3
/
CPL
P2.2
/
INC
P2.1
/
P2.0
DEC
/
DJNZ
CPU BUS
Alternative Function Output
/
MOV PX.Y, C
P2.0
SFR
Digital Input
QB
Q
/
CLR PX.Y
2 OSC
Pulse
MiDAS2.0 Family
/
SETB PX.Y
Pull-
up
[30]
P2.0