MPC8280 datasheet(104/1386 Pages) FREESCALE

104 / 1386 page

Overview

MPC8280 PowerQUICC II Family Reference Manual, Rev. 1

1-10

Freescale Semiconductor

1.4

Differences Between MPC860 and MPC8280

The following MPC860 features are not included in the MPC8280.

•

On-chip crystal oscillators (must use external oscillator)

•

4-MHz oscillator (input clock must be at the bus speed)

•

Low power (stand-by) modes

•

Battery-backup real-time clock (must use external battery-backup clock)

•

BDM (COP offers most of the same functionality)

•

True little-endian mode

•

PCMCIA interface

•

Infrared (IR) port

•

QMC protocol in SCC (256 HDLC channels are supported by the MCCs)

•

Multiply and accumulate (MAC) block in the CPM

•

Centronics port (PIP)

•

Pulse-width modulated outputs

•

SCC Ethernet controller option to sample 1 byte from the parallel port when a receive frame is

complete

•

Parallel CAM interface for SCC (Ethernet)

1.5

Serial Protocol Table

Table 1-1 summarizes available protocols for each serial port.

Table 1-1. MPC8280 Serial Protocols

Port

FCC

SCC

MCC

SMC

USB

ATM (Utopia)1

1 Not on the MPC8270

√

100BaseT

√

10BaseT

√√

HDLC

√√√

HDLC_BUS

√

Transparent

√√√√

UART

√√

DPLL

√

Multichannel

√

Universal serial bus

√

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