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MC68302FC20 Datasheet(PDF) 25 Page - Motorola, Inc

Part No. MC68302FC20
Description  Integrated Multiprotocol Processor User’s Manual
Download  480 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC68302FC20 Datasheet(HTML) 25 Page - Motorola, Inc

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General Description
MOTOROLA
MC68302 USER’S MANUAL
1-3
The MC68302 can also be used in applications such as board-level industrial controllers
performing real-time control applications with a local control bus and an X.25 packet network
connection. Such a system provides the real-time response to a demanding peripheral while
permitting remote monitoring and communication through an X.25 packet network.
1.2 FEATURES
The features of the IMP are as follows:
• On-Chip HCMOS MC68000/MC68008 Core Supporting a 16- or 8-Bit M68000 Family-
System
• IB Including:
—Independent Direct Memory Access (IDMA) Controller with Three Handshake
Signals: DREQ, DACK, and DONE.
—Interrupt Controller with Two Modes of Operation
—Parallel Input/Output (I/O) Ports, Some with Interrupt Capability
—On-Chip 1152-Byte Dual-Port RAM
—Three Timers Including a Watchdog Timer
—Four Programmable Chip-Select Lines with Wait-State Generator Logic
—Programmable Address Mapping of the Dual-Port RAM and IMP Registers
—On-Chip Clock Generator with Output Signal
—System Control:
Bus Arbitration Logic with Low-Interrupt Latency Support
System Status and Control Logic
Disable CPU Logic (M68000)
Hardware Watchdog
Low-Power (Standby) Modes
Freeze Control for Debugging
DRAM Refresh Controller
• CP Including:
—Main Controller (RISC Processor)
—Three Independent Full-Duplex Serial Communications Controllers (SCCs)
—Supporting Various Protocols:
High-Level/Synchronous Data Link Control (HDLC/SDLC)
Universal Asynchronous Receiver Transmitter (UART)
Binary Synchronous Communication (BISYNC)
Synchronous/Asynchronous Digital Data Communications Message
Protocol (DDCMP)
Transparent Modes
V.110 Rate Adaption
—Six Serial DMA Channels for the Three SCCs
—Flexible Physical Interface Accessible by SCCs Including:
Motorola Interchip Digital Link (IDL)
General Circuit Interface (GCI, also known as IOM3-2)
Pulse Code Modulation (PCM) Highway Interface
3. IOM is a trademark of Siemens AG


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