Service Manuals, User Guides, Schematic Diagrams or docs for : Keithley 2001 ds Digital MC68302FACT
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Freescale Semiconductor, Inc.
M O T O R O L A' S M C 6 8 3 0 2
I N T E G R AT E D M U LT I - P R O T O C O L P R O C E S S O R
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.
Freescale Semiconductor, Inc...
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).
Product Highlights
MC68302 MICROPROCESSOR
s MC68000/MC68008 Microprocessor Core
s Efficient architecture involves a separate
RISC processor for handling communications
s Three Serial Communications Controllers
(SCCs)
s Support for HDLC/SDLC, Bisync, UART,
DDCMP, and Totally Transparent
protocols.
s Two Serial Management Controllers
(SMCs) for IDL and GCI Channel.
s Available at 16, 20, 25, and 33 MHz
in three different Thin Quad Flat Pack
Packages.
s Strong 3rd Party tools support.
Typical Applications
s ISDN equipment
s Data Concentrators
s Modems
s Line Cards
s Network Bridges
s Gateways
Technical Specifications
s MC68000/MC68008 Microprocessor Core
(May be disabled to use the IMP as a peripheral)
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
- Independent Direct Memory Access (IDMA) Controller
MC68000/MC68008 CORE
- Interrupt controller with two modes of operation
- Parallel I/O ports, some with interrupt capability
- MC68000 BUS
On-Chip 1152-bytes of dual-port RAM
- Three timers, with a software watchdog timer MC68000/MC68008 CORE
- Four programmable chip-select lines with wait-state logic
- Programmable address mapping of dual-port RAM and
On-Chip Peripherals Bus Interface Unit
IMP registers
- On-Chip clock generator with an output clock signal
- System control 1152 Bytes Chip-Select
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