gc80c590ae CORERIVER Semiconductor, gc80c590ae Datasheet - Page 28

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

6.5. I/O Ports : PORT1[7:0]
(Except 44-pin)
An 8-bit 5V tolerant input quasi-bidirectional port (Intel 8052 compatible).
Read-Modify-Write instructions do not read port pin but read SFR register.
ANL
/
OPL
/
XRL
/
JBC
/
CPL
/
INC
/
DEC
/
DJNZ
/
MOV PX.Y, C
/
CLR PX.Y
/
SETB PX.Y
An available alternative input functions when the corresponding SFR bit is “1”.
P1.0 = T2
/
P1.1 = T2EX
/
P1.4 = INT2
/
P1.5 = INT3
/
P1.6 = INT4
/
P1.7 = INT5
PORT 1 Description
P1 (90h) : PORT 1 Register
Alternative Function Output
Pull-
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
up
R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1) R/W(1)
2 OSC
Pulse
Q
P1.0
CPU BUS
P1.0
SFR
QB
Digital Input
[28]
MiDAS2.0 Family
Semiconductor Co., Ltd.