Microcontroller User's Manual

MOTOROLA Chapter 14. Signal Descriptions 14-11
Overview
UTXD[2:0] Transmitter serial data outputs. O
XTAL Internal oscillator connection to the external crystal. O
Table 14-3. MCF5282 Signals and Pin Numbers Sorted by Function
MAPBGA Pin
Pin Functions
Description
Primary
I/O
Internal
Pull-up
1
Primary
2
Secondary Tertiary
Reset
R11 RSTI — — Reset in IYes
P11 RSTO — — Reset out O —
Clock
T8 EXTAL — — External clock/crystal in I —
R8 XTAL — — Crystal drive O —
N7 CLKOUT — — Clock out O —
Chip Configuration/Mode Selection
R14 CLKMOD0 — — Clock mode select IYes
T14 CLKMOD1 — — Clock mode select IYes
T11 RCON — — Reset configuration enable IYes
H1 D26 PA2 — Chip mode I/O —
K2 D17 PB1 — Chip mode I/O —
K3 D16 PB0 — Chip mode I/O —
J4 D19 PB3 — Boot device/data port size I/O —
K1 D18 PB2 — Boot device/data port size I/O —
J2 D21 PB5 — Output pad drive strength I/O —
External Memory Interface and Ports
C6:B6:A5 A[23:21] PF[7:5] CS
[6:4] Address bus O Yes
C4:B4:A4:B3:A3 A[20:16] PF[4:0] — Address bus O Yes
A2:B1:B2:C1:
C2:C3:D1:D2
A[15:8] PG[7:0] — Address bus O Yes
D3:D4:E1:E2:
E3:E4:F1:F2
A[7:0] PH[7:0]
— Address bus O Yes
F3:G1:G2:G3:
G4:H1:H2:H3
D[31:24] PA[7:0] — Data bus I/O —
H4:J1:J2:J3:
J4:K1:K2:K3
D[23:16] PB[7:0] — Data bus I/O —
Table 14-2. MCF5282 Alphabetical Signal Index (Continued)
Abbreviation Function I/O