MPC8280 datasheet(98/1386 Pages) FREESCALE

98 / 1386 page

Overview

MPC8280 PowerQUICC II Family Reference Manual, Rev. 1

1-4

Freescale Semiconductor

— Two multichannel controllers (MCCs) (one MCC on the MPC8270)

– Each MCC handles 128 serial, full-duplex, 64-Kbps data channels. Each MCC can be split

into four subgroups of 32 channels each.

– Almost any combination of subgroups can be multiplexed to single or multiple TDM

interfaces up to four TDM interfaces per MCC

— Four serial communications controllers (SCCs) identical to those on the MPC860, supporting

the digital portions of the following protocols:

– Ethernet/IEEE 802.3 CDMA/CS

– HDLC/SDLC and HDLC bus

– Universal asynchronous receiver transmitter (UART)

– Synchronous UART

– Binary synchronous (BISYNC) communications

– Transparent

— Universal serial bus (USB) controller

– USB 2.0 full/low rate compatible

– USB host mode

–Supports control, bulk, interrupt, and isochronous data transfers

–CRC16 generation and checking

–NRZI encoding/decoding with bit stuffing

–Supports both 12- and 1.5-Mbps data rates (automatic generation of preamble token and

data rate configuration). Note that low-speed operation requires an external hub.

–Flexible data buffers with multiple buffers per frame

–Supports local loopback mode for diagnostics (12 Mbps only)

– Supports USB slave mode

–Four independent endpoints support control, bulk, interrupt, and isochronous data

transfers

–CRC16 generation and checking

–CRC5 checking

–NRZI encoding/decoding with bit stuffing

–12- or 1.5-Mbps data rate

–Flexible data buffers with multiple buffers per frame

–Automatic retransmission upon transmit error

— Two serial management controllers (SMCs), identical to those of the MPC860

– Provide management for BRI devices as general circuit interface (GCI) controllers in time-

division-multiplexed (TDM) channels

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