Motorola MCF5281 사용자 설명서

MOTOROLA

Chapter 14.  Signal Descriptions  

14-11

UTXD[2:0]

Transmitter serial data outputs.

O

XTAL

Internal oscillator connection to the external crystal.

O

R11

RSTI

—

—

Reset in

I

Yes

P11

RSTO

—

—

Reset out

O

—

T8

EXTAL

—

—

External clock/crystal in

I

—

R8

XTAL

—

—

Crystal drive

O

—

N7

CLKOUT

—

—

Clock out

O

—

R14

CLKMOD0

—

—

Clock mode select

I

Yes

T14

CLKMOD1 

—

—

Clock mode select

I

Yes

T11

RCON

—

—

Reset configuration enable

I

Yes

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

—

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

—