Datasheet

#$
#$
#$$
SBAS317E − APRIL 2004 − REVISED MAY 2006
www.ti.com
62
Port 3 Data Direction Low (P3DDRL)
7 6 5 4 3 2 1 0 Reset Value
SFR B3h P33H P33L P32H P32L P31H P31L P30H P30L 00h
P3.3 Port 3 bit 3 control.
bits 7−6
P33H P33L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P3.2 Port 3 bit 2 control.
bits 5−4
P32H P32L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P3.1 Port 3 bit 1 control.
bits 3−2
P31H P31L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P3.0 Port 3 bit 0 control.
bits 1−0
P30H P30L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input