Abov MC97F2664, Руководство пользователя

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MC97F2664
86 April 11, 2014 Ver. 1.4
9.8 P5 Port
9.8.1 P5 Port Description
P5 is 8-bit I/O port. P5 control registers consist of P5 data register (P5), P5 direction register (P5IO), P5 pull-up
resistor selection register (P5PU) and P5 open-drain selection register (P5OD). Refer to the port function
selection registers for the P5 function selection.
9.8.2 Register description for P5
P5 (P5 Data Register) : B0H
7 6 5 4 3 2 1 0
P57 P56 P55 P54 P53 P52 P51 P50
R/W R/W R/W R/W R/W R/W R/W R/W
Initial value : 00H
P5[7:0]
I/O Data
P5IO (P5 Direction Register) : C9H
7 6 5 4 3 2 1 0
P57IO P56IO P55IO P54IO P53IO P52IO P51IO P50IO
R/W R/W R/W R/W R/W R/W R/W R/W
Initial value : 00H
P5IO[7:0]
P5 Data I/O Direction
0 Input
1 Output
NOTE) EINT10-EINT13/EC0-EC3 function possible when input
P5PU (P5 Pull-up Resistor Selection Register) : 100DH (XSFR)
7 6 5 4 3 2 1 0
P57PU P56PU P55PU P54PU P53PU P52PU P51PU P50PU
R/W R/W R/W R/W R/W R/W R/W R/W
Initial value : 00H
P5PU[7:0]
Configure Pull-up Resistor of P5 Port
0 Disable
1 Enable
P5OD (P5 Open-drain Selection Register) : 1005H (XSFR)
7 6 5 4 3 2 1 0
P57OD P56OD P55OD P54OD P53OD P52OD P51OD P50OD
R/W R/W R/W R/W R/W R/W R/W R/W
Initial value : 00H
P5OD[7:0]
Configure Open-drain of P5 Port
0 Push-pull output
1 Open-drain output