Datasheet

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SBAS317E − APRIL 2004 − REVISED MAY 2006
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60
Port 1 Data Direction High (P1DDRH)
7 6 5 4 3 2 1 0 Reset Value
SFR AFh P17H P17L P16H P16L P15H P15L P14H P14L 00h
P1.7 Port 1 bit 7 control.
bits 7−6
P17H P17L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P1.6 Port 1 bit 6 control.
bits 5−4
P16H P16L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P1.5 Port 1 bit 5 control.
bits 3−2
P15H P15L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input
P1.4 Port 1 bit 4 control.
bits 1−0
P14H P14L
0 0 Standard 8051
0 1 CMOS Output
1 0 Open Drain Output
1 1 Input