MC68306FC16 Datasheet, PDF (17/191 Pages) Motorola, Inc – Integrated EC000 Processor

The primary features of the MC68306 are as follows:
• Functional Integration on a Single Piece of Silicon
• EC000 Core—Identical to MC68EC000 Microprocessor
— Complete Code Compatibility with MC68000 and MC68EC000
— High Performance—2.4 MIPS
— Extended Internal Address Range – to 4 Gbyte
• Two-Channel Universal Synchronous/Asynchronous Receiver/Transmitter (DUART)
— Baud Rate Generators
— Modem Control
— Compatible with MC68681/MC2681
— Integrated 16-Bit Timer/Counter
• DRAM Controller
— Supports up to 16 Mbytes using 4M x 1 DRAMs, 64 Mbytes using 16M x 1 DRAMs
— Provides Zero Wait State Interface to 80-ns DRAMs
— Programmable Refresh Timer Provides CAS -before-RAS Refresh
• Chip Selects
— Eight Programmable Chip Select Signals
— Provide Eight Separate 1-Mbyte Spaces or Four Separate 16-Mbyte Spaces
— Programmable Wait States
• Programmable Interrupt Controller
• Bus Timeout
• 24 Address Lines, 16 Data Lines
• 16.67 MHz, 5 Volt Operation
• 144-Pin Thin Quad Flat Pack (TQFP)or 132-Pin Plastic Quad Flat Pack (PQFP)
1.1 MC68EC000 CORE PROCESSOR
The MC68EC000 is a core implementation of the MC68000 32-bit microprocessor
architecture. The programmer can use any of the eight 32-bit data registers for fast
manipulation of data and any of the eight 32-bit address registers for indexing data in
memory. Flexible instructions support data movement, arithmetic functions, logical
operations, shifts and rotates, bit set and clear, conditional and unconditional program
branches, and overall system control.
The MC68EC000 core can operate on data types of single bits, binary-coded decimal
(BCD) digits, and 8, 16, and 32 bits. The integrated chip selects allow peripherals and
data in memory to reside anywhere in the 4-Gbyte linear address space. A supervisor
operating mode protects system-level resources from the more restricted user mode,
allowing a true virtual environment to be developed. Many addressing modes complement
1-2
MC68306 USER'S MANUAL
MOTOROLA