Rainbow Electronics AT91CAP9S250A - Manual (Page 453)

453
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
32.6.23 PIO Pull Up Status Register
Name: PIO_PUSR
Access Type: Read-only
• P0-P31: Pull Up Status.
0 = Pull Up resistor is enabled on the I/O line.
1 = Pull Up resistor is disabled on the I/O line.
32.6.24 PIO Peripheral A Select Register
Name: PIO_ASR
Access Type: Write-only
• P0-P31: Peripheral A Select.
0 = No effect.
1 = Assigns the I/O line to the Peripheral A function.
31 30 29 28 27 26 25 24
P31 P30 P29 P28 P27 P26 P25 P24
23 22 21 20 19 18 17 16
P23 P22 P21 P20 P19 P18 P17 P16
15 14 13 12 11 10 9 8
P15 P14 P13 P12 P11 P10 P9 P8
7 6 5 4 3 2 1 0
P7 P6 P5 P4 P3 P2 P1 P0
31 30 29 28 27 26 25 24
P31 P30 P29 P28 P27 P26 P25 P24
23 22 21 20 19 18 17 16
P23 P22 P21 P20 P19 P18 P17 P16
15 14 13 12 11 10 9 8
P15 P14 P13 P12 P11 P10 P9 P8
7 6 5 4 3 2 1 0
P7 P6 P5 P4 P3 P2 P1 P0