MPC8248CZQB datasheet(5/56 Pages) MOTOROLA

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MOTOROLA

MPC8272 PowerQUICC II™ Family Hardware Speciﬁcations

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Overview

•

Universal serial bus (USB) controller

— Supports 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

— Serial DMA channels for receive and transmit on all serial channels

— Parallel I/O registers with open-drain and interrupt capability

— Virtual DMA functionality executing memory-to-memory and memory-to-I/O transfers

— Two fast communication controllers (FCCs) supporting the following protocols:

– 10-/100-Mbit Ethernet/IEEE 802.3 CDMA/CS interface through media independent

interface (MII)

– Transparent

– HDLC—up to T3 rates (clear channel)

– One of the FCCs supports ATM (MPC8272 and MPC8271 only)—full-duplex SAR at 155

Mbps, 8-bit UTOPIA interface 31 Mphys, AAL5, AAL1, AAL2, AAL0 protocols, TM 4.0

CBR, VBR, UBR, ABR trafﬁc types, up to 64-K external connections

— Three 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

– QUICC multichannel controller (QMC) up to 64 channels

• Independent transmit and receive routing, frame synchronization.

• Serial-multiplexed (full-duplex) input/output 2048-, 1544-, and 1536-Kbps PCM

highways

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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