CZ80CPU

www.DataSheet4U.com CZ80CPU 8-Bit Microprocessor Megafunction General Description Implements a fast, fully-functional, single-chip, 8bit microprocessor with the same instruction set as the Z80. The core has a 16-bit address bus capable of directly accessing 64kB of memory space. It has 252 root instructions with the reserved 4 bytes as prefixes, and accesses an additional 308 instructions. The microcode-free design was developed for reuse in ASIC and FPGA implementations. It is strictly synchronous, with no internal tri-states and a synchronous reset. Features Programming features contain 208 bits of read/write memory that are accessible to the programmer. The internal registers include an accumulator and six 8-bit registers that can be paired as three 16-bit registers. In addition to general registers, a 16-bit stack-pointer, 16-bit program-counter, and two 16-bit index registers are provided. Control Unit o 8-bit Instruction decoder Arithmetic-Logic Unit o 8-bit arithmetic and logical operations 16-bit arithmetic operations Boolean manipulations Symbol o o Register File Unit o o Duplicate set of both general purpose and flag registers Two 16-bit index registers m Interrupt Controller o o Three modes of maskable interrupts Non maskable interrupt .co External Memory interface o o o Can address up to 64 KB of program memory Can address up to 64 KB of data memory Can address up to 64 KB of input/output devices Sh eet 4U w.D ata On-core dynamic ...