Motorola ColdFire MCF5281 - Manual (Page 505)

General Purpose I/O Module
Freescale Semiconductor 26-5
Table 26-1. Ports External Signals
Primary
Function
(Pin Name)
1
GPIO
(Default
Function)
Alternate
Function 1
Alternate
Function 2
Description
D[31:0]
2
PA, PB,
PC, PD — — External data bus / Ports A, B, C, D
OE
1
PE[7] — — Output enable for external reads / Port E[7]
TA 1 PE[6] — — Transfer acknowledge for external data transfer / Port E[6]
TEA 1 PE[5] — — Transfer error acknowledge for external data transfer / Port E[5]
R/W 1 PE[4] — — Read/Write indication for external data transfer / Port E[4]
SIZ1 1 PE[3] SYNCA — Size of the external data transfer / Port E[3] / Timer A sync
SIZ0 1 PE[2] SYNCB — Size of the external data transfer / Port E[3:2] / Timer B sync
TS 1 PE[1] SYNCA — Transfer start indication for external data transfer / Port E[1] /
Timer A sync
TIP
1
PE[0] SYNCB — Transfer in progress indication for external data transfer / Port
E[0] / Timer B sync
A[23:21]
1
PF[7:5] CS[6:4] — External address bus [23:21] / Port F[7:5] / Chip selects 6–4
A[20:0]
1
PF[4:0],
PG, PH
— — External address bus [20:0] / Ports F[4:0], G, H
BS[3:0] 1 PJ[7:4] — — Byte strobes for external data transfer / Port J[7:4] / SDRAM
column address strobes
CS[3:0] 1 PJ[3:0] — — Chip selects 3 - 0 / Port J[3:0]
DDATA[3:0] PDD[7:4] — — Debug data / Port DD[7:4]
PST[3:0] PDD[7:4] — — Processor status / Port DD[3:0]
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]
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3