68000 Compatible Microprocessor

"The AllianceCORE CAST C68000 is a powerful 16/32-bit microprocessor derived from the Motorola MC68000 microprocessor. The C68000 is a fully functional 32-bit internal and 16-bit external equivalent of the MC68000. The C68000 serves interrupts and exceptions, and provides an interface for M6800 family peripherals. The C68000 is a microcode-free design developed for reuse in ASIC and FPGA implementations. The design is strictly synchronous without internal tri-states and a synchronous reset.

Device Family Support

Virtex-II Pro

Virtex-II

Virtex-E

Virtex

Spartan-3

Spartan-IIE

Key Features

Control Unit: 16-bit two levels instruction decoder, three levels instruction queue

Instruction and address: 55 instructions (87 mnemonics) ,14 address modes

Modes: Supervisor mode, User mode

Independent stack for both modes

Users registers: Eight 32-bit data registers, Eight 32-bit address register, 16-bit status register

Eight 32-bit data registers, Eight 32-bit address register, 16-bit status register

Data format: Integer 8, 16 or 32 bit, BCD packet"