Microcontroller User's Manual

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14-12 MCF5282 User’s Manual MOTOROLA

Overview

L1:L2:L3:L4:

M1:M2:M3:M4

D[15:8] PC[7:0] — Data bus I/O —

N1:N2:N3:P1:

N5:T6:R6:P6

D[7:0] PD[7:0] — Data bus I/O —

P14:T15:R15:R16 BS[3:0] PJ[7:4] — Byte strobe I/O Yes

N16 OE PE7 — Output enable I/O —

P16 TA PE6 — Transfer acknowledge I/O Yes

P15 TEA PE5 — Transfer error acknowledge I/O Yes

N15 R/W PE4 — Read/write I/O Yes

N14 SIZ1 PE3 SYNCA Transfer size I/O Yes

M16 SIZ0 PE2 SYNCB Transfer size I/O Yes

M15 TS PE1 SYNCA Transfer start I/O Ye s

M14 TIP PE0 SYNCB Transfer in progress I/O Yes

Chip Selects

L16:L15:L14:L13 CS[3:0] PJ[3:0] — Chip selects 3-0 I/O Yes

C6:B6:A5 A[23:21] PF[7:5] CS[6:4] Chip selects 6-4 O Yes

SDRAM Controller

H15 SRAS

PSD5 — SDRAM row address strobe I/O —

H16 SCAS PSD4 — SDRAM column

address strobe

I/O —

G15 DRAMW PSD3 — SDRAM write enable I/O —

H13:G16 SDRAM_CS

[1:0] PSD[2:1] — SDRAM chip selects I/O —

H14 SCKE PSD0 — SDRAM clock enable I/O —

External Interrupts Port

B15:B16:C14:C15:

C16: D14:D15

IRQ[7:1] PNQ[7:1] — External interrupt request I/O —

Ethernet

C10 EMDIO PAS5 URXD2 Management channel

serial data

I/O —

B10 EMDC PAS4 UTXD2 Management channel clock I/O —

A8 ETXCLK PEH7 — MAC Transmit clock I/O —

D6 ETXEN PEH6 — MAC Transmit enable I/O —

D7 ETXD0 PEH5 — MAC Transmit data I/O —

Table 14-3. MCF5282 Signals and Pin Numbers Sorted by Function (Continued)

MAPBGA Pin

Pin Functions

Description

Primary

I/O

Internal

Pull-up

Primary

Secondary Tertiary