Microcontroller User's Manual

MOTOROLA Chapter 26. General Purpose I/O Module 26-5
External Signal Description
ERXER PEL[0] — — Ethernet receive error / Port EL[0]
EMDIO PAS[5] URXD2 — Ethernet management data control / Port AS[5] / URXD2
EMDC PAS[4] UTXD2 — Ethernet management data clock / Port AS[4] / UTXD2
CANRX PAS[3] URXD2 — FlexCAN receive data / Port AS[3] / URXD2
CANTX PAS[2] UTXD2 — FlexCAN transmit data / Port AS[2] / UTXD2
SDA PAS[1] URXD2 — I
2
C serial data / Port AS[1] / URXD2
SCL PAS[0] UTXD2 — I
2
C serial clock / Port AS[0] / UTXD2
IRQ[7:1]
3
PNQ[7:1] — — Edge Port external interrupt pins / Port NQ[7:1]
AN[56:55:53:52]
2
PQA
[4:3:1:0]
ETRIG[2:1],
MA[1:0]
— QADC analog inputs / Port QA[4:3:1:0] / external triggers / external
multiplex control
AN[3:0]
2
PQB[3:0] ANZ, ANY,
ANX, ANW
— QADC analog inputs / Port QB[3:0] / multiplexed analog inputs
QSPI_CS
[3:0]
PQS[6:3] — — QSPI synchronous peripheral chip selects / Port QS[3:6]
QSPI_CLK PQS[2] — — QSPI serial clock / Port QS[2]
QSPI_DIN PQS[1] — — QSPI serial data input / Port QS[1]
QSPI_DOUT PQS[0] — — QSPI serial data output / Port QS[0]
SRAS PSD[5] — — SDRAM synchronous row address strobe / Port SD[5]
SCAS PSD[4] — SDRAM synchronous column address strobe / Port SD[4]
DRAMW PSD[3] — — SDRAM write enable / Port SD[3]
SDRAM_CS[1:0] PSD[2:1] — — SDRAM row address strobes 1, 0 / Port SD[2:1]
SCKE PSD[0] — — SDRAM clock enable / Port SD[0]
GPTA[3:0]
2
PTA[3:0] — — General purpose timer A input/output / Port TA[3:0]
GPTB[3:0]
2
PTB[3:0] — — General purpose timer B input/output / Port TB[3:0]
DTIN3 PTC[3] URTS1 URTS0 DMA timer 3 input / Port TC[3] / UART1 request to send / UART0
request to send
DTOUT3 PTC[2] URTS1
URTS0 DMA timer 3 output / Port TC[2] / UART1 request to send / UART0
request to send
DTIN2 PTC[1] UCTS1 UCTS0 DMA timer 2 input / Port TC[1] / UART1 clear to send / UART0 clear
to send
DTOUT2 PTC[0] UCTS1
UCTS0 DMA timer 2 output / Port TC[0] / UART1 clear to send / UART0 clear
to send
DTIN1 PTD[3] URTS1 URTS0 DMA timer 1 input / Port TD[3] / UART1 request to send / UART0
request to send
DTOUT1 PTD[2] URTS1
URTS0 DMA timer 1 output / Port TD[3] / UART1 request to send / UART0
request to send
Table 26-1. MCF5282 Ports External Signals (continued)
Primary
Function (Pin
Name)
1
GPIO
(Default
Function)
Alternate
Function 1
Alternate
Function 2
Description