Name: Integrated MultiProtocol Processor
Availability: BackOrder

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The MC68302 is a versatile one-chip processor that incorporates the main building blocks needed for the design of a wide variety of networking and communications products.

The MC68302 was the first device to offer the benefits of a closely coupled, industry-standard, MC68000/MC68008 microprocessor core and a flexible communications architecture. This multi-channel communications device may be configured to support a number of popular industry-standard interfaces, including those for the Integrated Services Digital Network (ISDN) basic rate and terminal adapter applications. Through a combination of architectural and programmable features, concurrent operation of different protocols is easily achieved using the MC68302. Data concentrators, modems, line cards, bridges, and gateways are examples of other suitable applications for this versatile device.

The MC68302 is an HCMOS device consisting of an MC68000/MC68008 microprocessor core, a system integration block (SIB), and a communications processor (CP).

This device is still recommended for new designs.

Data Sheet

Reference Manual

Product Details

Block Diagram

Integrated Multi-Protocol Processor Block Diagram

Features

MC68000/MC68008 Microprocessor Core
Efficient architecture involves a separate RISC processor for handling communications
Three Serial Communications Controllers (SCCs)
Support for HDLC/SDLC, Bisync, UART, DDCMP, and Totally Transparent protocols.
Two Serial Management Controllers (SMCs) for IDL and GCI Channel.
Available at 16, 20, 25, and 33 MHz in three different Thin Quad Flat Pack Packages.
Strong 3rd Party tools support.

ISDN equipment
Data Concentrators
Modems
Line Cards
Network Bridges
Gateways

MC68000/MC68008 Microprocessor Core (May be disabled to use the IMP as a peripheral)
SIB Including:
- Independent Direct Memory Access (IDMA) Controller
- Interrupt controller with two modes of operation
- Parallel I/O ports, some with interrupt capability
- On-Chip 1152-bytes of dual-port RAM
- Three timers, with a software watchdog timer
- Four programmable chip-select lines with wait-state logic
- Programmable address mapping of dual-port RAM and IMP registers

On-Chip clock generator with an output clock signal
System Control
- Bus arbitration logic with low interrupt latency support
- System control register
- Hardware watchdog for monitoring bus activity
- Low power (Standby) modes
- Disable CPU logic (M68000)
- Freeze control for debugging selected on-chip peripherals
- DRAM refresh controller

CP Including:
- Main controller (RISC Processor)
- Three full-duplex Serial Communication/Controllers with the following protocols:
  - HDLC/SDLC
  - Bisync
  - UART
  - DDCMP
  - Totally Transparent
  - V.110
- Six serial DMA channels dedicated to the three SOCs
- Capability to send/receive up to eight buffers/frames without M68000 core intervention
- Flexible physical interface accessible by SCCs for Inter-chip Digital Link (IDL), General Circuit Interface (GCI).
- Pulse Code Modulation (PCM), and Non-multiplexed Serial Interface (NMSI) Operation.
- Serial Communication Port (SCP) for synchronous communication.
- Two Serial Management Controllers (SMCs) for IDL and GCI Channel.

Buy/Parametrics

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Design Resources

Design Files

Quick reference to our design files types.

3 design files

Receive the full breakdown. See the product footprint and more in the eCad file.

Printed Circuit Boards and Schematics
M68EN302 FADS Adapter (ENA) Schematics

ZIPRev 0Feb 6, 1996 00:00:00196.01 KBM68EN302FADSSCH

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Printed Circuit Boards and Schematics
M68xx302 FADS Schematics

ZIPDec 4, 1996 00:00:00397.48 KBM68XX302FADSSCH

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Printed Circuit Boards and Schematics
MC68EN302 Schematics

ZIPRev 0Feb 6, 1996 00:00:00196.01 KBMC68EN302SCH1

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Software

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1-5 of 11 software files

Libraries
Complimentary ColdFire^® Digital Signal Processing LibraryFeatured
Application Example Software
MC68302 Application Development System Software

ZIPRev 0Dec 4, 1996 00:00:00466.99 KBMC68302ADSADF1

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Application Example Software
MC68SC302 Application Development System Software

ZIPRev 3.1Sep 24, 1997 00:00:00273.10 KBMC68SC302ADF

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Application Example Software
M68xx302 Family Application Development System (302 FADS) Software

ZIPRev 0.4Dec 23, 1997 00:00:00552.57 KBM68XX302FADSADF

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Application Example Software
MC68302ADS IBM-PC Host Files

ZIPRev 0Dec 4, 1996 00:00:00222.40 KBMC68302ADSADF2

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Code Snippets
MC68302 Centronics Microcode - M68302SWCEN

ZIPRev 0Feb 22, 1999 00:00:007.22 KBMC68302MC2

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Code Snippets
MC68302 SS7 Microcode - M68302SWSS7

ZIPRev 1.1Mar 6, 2002 00:00:00109.70 KBMC68302MC4

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Code Snippets
Autobaud Microcode for the MC68QH302

ZIPRev 0Aug 28, 1998 00:00:0060.15 KBMC68QH302MC1

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Code Snippets
MC68302 Autobaud 2.0 Microcode - M68302SWAUT

ZIPRev 0Feb 22, 1999 00:00:0011.17 KBMC68302MC1

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Code Snippets
MC68302 PIAFS Microcode - M68302SWPIA

ZIPRev 0Jan 26, 2000 00:00:006.29 KBMC68302MC6

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Development IDEs and Build Tools
CodeWarrior^® Development Studio for 68K Embedded Systems (Classic IDE) v3.2

Download Options

Integrated Multi-Protocol Processor

Product Details

Block Diagram

Integrated Multi-Protocol Processor Block Diagram

Features

Buy/Parametrics

Documentation

Filter by

Application Note (12)

MC68302 Adapting a WAN Controller to a LAN Environment[AN2020]

AN2026 Evaluating EDX on the ADS302[AN2026]

AN2049 MC68302, MC68360, and MPC860 Characteristics and Design Notes for Crystal Feedback Oscillators[AN2049]

AN2028 MC68SC302 Passive ISDN Protocol Engine[AN2028]

MC68302 EKB Applications - Power Measurements on the MC68302[AN2023]

MC68302 Interfacing the MC68020 to a Follower MC68302[AN2021]

AN2027 MC68302 Provides Peripheral and Communication Functions for PowerPC[AN2027]

Configuring the Chip Selects on the MC68302[AN2015]

DRAM Control with the MC68302[AN2016]

MC68302 Design Concept - Expanding Interrupts on the MC68302[AN2019]

MC68302 Software Performance[AN2024]

MC68302 Getting Started with Interrupts on the MC68302[AN2018]

Data Sheet (6)

MC68QH302 Quad HDLC Integrated Multiprotocol Processor Advance Information Technical Summary - Data Sheet[MC68QH302]

MC68302 33 MHz AC Timing Specification[MC68302TIMING]

MC68SC302 Passive ISDN Protocol Engine Product Brief[MC68SC302P]

MC68EN302 Integrated Multiprotocol Processor w/ Ethernet Product Brief[MC68EN302]

MC68PM302 Integrated Multiprotocol Processor w/ PCMCIA Product Brief[MC68PM302]

MC68LC302 Low Cost Integrated Multiprotocol Processor Product Brief[MC68LC302]

Errata (12)

MC68EN302DEB Errata[MC68EN302DEB]

MC68302DEB Errata[MC68302DEB]

M68302 Device Errata - 68EN302 Integrated Multiprotocol Processor With Ethernet Device[MC68EN302DEB_D]

M68302 Device Errata - MC68LC302 Integrated Multiprotocol Processor Devices[MC68LC302DEC]

M68302 Errata Revision C.1 (Masks 0F26E, 1F26E)[MC68302DEC1]

M68302 Device Errata - MC68QH302 Chip Errata[MC68QH302DEC1]

M68302 Device Errata - XC68SC302[MC68SC302DEA1]

M68302 Device Errata - 68PM302 Integrated Multiprotocol Processor Devices[MC68PM302DEC1]

M68302 Revision C Changes - 68PM302 Integrated Multiprotocol Processor Devices[MC68PM302DEC]

M68302 Device Errata - 68EN302 Integrated Multiprotocol Processor Device[MC68EN302DEA1]

M68302 Device Errata - 68PM302 Integrated Multiprotocol Processor Devices[MC68PM302DEB1]

M68302 Device Errata - 68LC302 Integrated Multiprotocol Processor Devices[MC68LC302DEB]

Fact Sheet (1)

M68302 Integrated Multiprotocol Processor[MC68302FACT]

Package Information (5)

PBGA Packaging Customer Tutorial[PBGAPRES]

MC68302_OLB[MC68302_OLB]

MC68302 Pin Assignment (TQFP)[MC68302TQFP]

MC68EN302 Pin Assignment (TQFP)[MC68EN302TQFP]

MC68EN302_OLB[MC68EN302_OLB]

Product Brief (1)

MC68302 Family Application Development System - Product Brief[M68302FADS]

Product Change Notice (3)

MC68LC302 Fab Transfer to TSC-PCN5792[PCN5792]

MC68EN302 Fab Transfer to TSC Addendum-PCN5787[PCN5787]

MC68EN302 Capacity Expansion-PCN5656[PCN5656]

Reference Manual (16)

MC68LC302 Low Power Integrated Multiprotocol Processor Reference Manual[MC68LC302UM]

Addendum to MC68302 Integrated Multiprotocol Processor User Manual (3.3 V Specifications)[MC68302UMADD33V]

MC68EN302 Integrated Multiprotocol Processor with Ethernet Reference Manual[MC68EN302RM]

MC68SC302 Errata to MC68SC302 Users Manual[MC68SC302UMAD_AD]

Errata to MC68302 Integrated Multiprotocol Processor Users Manual[MC68302UMAD4]

MC68QH302 Supplement to the MC68302 Integrated Multiprotocol Processor User's Manual[MC68QH302SUPL]

MC68LC302 Low Power Integrated Multiprotocol Processor Reference Manual ERRATA[MC68LC302RMAD]

Errata to MC68PM302 Integrated Multiprotocol Processor with PCMCIA Reference Manual[MC68PM302RMAD]

MC68SC302 Passive ISDN Protocol Engine User's Manual[MC68SC302RM]

MC68302 Integrated Multiprotocol Processor User's Manual[MC68302UM]

Errata to MC68EN302 Integrated Multiprotocol Processor with Ethernet Reference Manual Rev 1[MC68EN302RMAD]

MC68302FADS User's Manual[MC68302FADSUM]

MC68PM302 Integrated Multiprotocol Processor with PCMCIA Reference Manual[MC68PM302RM]

MC68LC302 Low Power Integrated Multiprotocol Processor Reference Manual[MC68LC302RM_AD]

MC68302 Auto Baud Support Package Specifications[MC68302ABSPEC]

Errata to MC68302 Integrated Multiprotocol Processor Users Manual[MC68302UMAD3]

Supporting Information (1)

MC68EN302 Getting Started Hints[MC68EN302SI]

Technical Notes (1)

MC68302FC 132-Lead PQFP[EB382]

User Guide (2)

MC68302 PIAFS Microcode for MC68302(IMP) Family User's Manual[MC68302PIAFSUM]

MC68SC302ADS Application Development System User's Manual[MC68SC302ADSUM]

Design Resources