Funkcje pełnione przez poszczególne linie portu PO są zebrane w poniższej tabeli.
Port |
Rejestr PINSELx |
OOb |
01 b |
10b |
11 b |
PO.O |
PINSELO [1:0] |
PO.O |
TxD0 |
PWM1 |
- |
P0.1 |
PINSELO [3:2] |
P0.1 |
RxD0 |
PWM3 |
EINTO |
P0.2 |
PINSELO [5:4] |
P0.2 |
SOLO |
CAPO.O |
- |
PO.3 |
PINSELO [7:6] |
PO. 3 |
SDAO |
MATO.O |
EINT1 |
PO.4 |
PINSELO [9:8] |
POT |
SCKO |
CAP0.1 |
AD0.6 |
P0.5 |
PINSELO [11:10] |
PO. 5 |
MISOO |
MAT0.1 |
AD0.7 |
P0.6 |
PINSELO [13:12] |
PO. 6 |
MOSIO |
CAP0.2 |
AD1.0 |
P0.7 |
PINSELO [15:14] |
PO. 7 |
SSELO |
PWM2 |
EINT2 |
PO.8 |
PINSELO [17:16] |
PO. 8 |
TxD1 |
PWM4 |
- |
PO.9 |
PINSELO [19:18] |
P0.9 |
RxD1 |
PWM6 |
EINT3 |
P0.10 |
PINSELO [21:20] |
P0.10 |
RTS1 |
CAP1.0 |
AD1.2 |
P0.11 |
PINSELO [23:22] |
P0.11 |
CTS1 |
CAP1.1 |
SCL1 |
P0.12 |
PINSELO [25:24] |
P0.12 |
DSR1 |
MAT1.0 |
AD1.3 |
P0.13 |
PINSELO [27:26] |
P0.13 |
DTR1 |
MATU |
AD1.4 |
P0.14 |
PINSELO [29:28] |
P0.14 |
DCD1 |
EINT1 |
SDA1 |
P0.15 |
PINSELO [31:30] |
P0.15 |
RI1 |
EINT2 |
AD1.5 |
P0.16 |
PINSEL1 [1:0] |
P0.16 |
EINTO |
MAT0.2 |
CAP0.2 |
P0.17 |
PINSEL1 [3:2] |
P0.17 |
CAP1.2 |
SCK |
MAT 1.2 |
P0.18 |
PINSEL1 [5:4] |
P0.18 |
CAP1.3 |
MISO |
MAT 1.3 |
P0.19 |
PINSEL1 [7:6] |
P0.19 |
MAT1.2 |
MOSI |
CAP1.2 |
P0.20 |
PINSEL1 [9:8] |
P0.20 |
MAT1.3 |
SSEL |
EINT3 |
P0.21 |
PINSEL1 [11:10] |
P0.21 |
PWM5 |
AD1.6 |
CAP1.3 |
P0.22 |
PINSEL1 [13:12] |
P0.22 |
AD1.7 |
CAPO.O |
MATO.O |
P0.23 |
PINSEL1 [15:14] |
P0.23 |
- |
- |
- |
P0.24 |
PINSEL1 [17:16] |
- |
- |
- |
- |
P0.25 |
PINSEL1 [19:18] |
P0.25 |
AD0.4 |
AOUT |
- |
P0.26 |
PINSEL1 [21:20] |
P0.26 |
AD0.5 |
- |
- |
P0.27 |
PINSEL1 [23:22] |
P0.27 |
ADO.O |
CAP0.1 |
MAT0.1 |
P0.28 |
PINSEL1 [25:24] |
P0.28 |
AD0.1 |
CAP0.2 |
MAT0.2 |
P0.29 |
PINSEL1 [27:26] |
P0.29 |
AD0.2 |
CAP0.3 |
MAT0.3 |
P0.30 |
PINSEL1 [29:28] |
P0.30 |
AD0.3 |
EINT3 |
CAPO.O |
P0.31 |
PINSEL1 [31:30] |
P0.31 (Out) |
- |
- |
- |
Konfiguracja portu PI jest łatwiejsza, ponieważ jedyną funkcją alternatywną, jaką pełni ten port jest interfejs debugowania (DEBUG) i śledzenia (TRACĘ), które nie będą wykorzystywane podczas zajęć w laboratorium.