Datasheet

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SBAS317E − APRIL 2004 − REVISED MAY 2006
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Port 1 Data Direction Low (P1DDRL)
7 6 5 4 3 2 1 0 Reset Value
SFR AEh P13H P13L P12H P12L P11H P11L P10H P10L 00h
P1.3 Port 1 bit 3 control.
bits 7−6
P13H P13L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P1.2 Port 1 bit 2 control.
bits 5−4
P12H P12L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P1.1 Port 1 bit 1 control.
bits 3−2
P11H P11L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P1.0 Port 1 bit 0 control.
bits 1−0
P10H P10L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input