DZ80 Datasheet, PDF (1/3 Pages) Digital Core Design – 8-bit Microprocessor

DZ80
8-bit Microprocessor
ver 1.00
OVERVIEW
Document contains brief description of DZ80
core functionality. The DZ80 is an advanced 8-
bit microprocessor with 208 bits of user acces-
sible registers, composed of six general pur-
pose registers, able to be used individually as
either 8-bit registers, or as 16-bit register pairs.
Additionally to those registers, DZ80 supports
two sets of accumulator and flag registers.
The DZ80 contains also Stack Pointer, program
Counter, two index registers, a REFRESH reg-
ister, and an INTERRUPT register. All output
signals are fully decoded and timed to control
standard memory or peripheral circuits. The
DZ80 is supported by a wide range of peripher-
als family.
DZ80 is fully customizable, which means it is
delivered in the exact configuration to meet
users requirements. There is no need to pay
extra for not used features and wasted silicon. It
includes fully automated testbench with
complete set of tests allowing easy package
validation at each stage of SoC design flow.
CPU FEATURES
● Fully compatible with industry standard Z80
● Fully synthesizable, static synchronous de-
sign with no internal tri-states
● No internal reset generator or gated clock
● Scan test ready
● Technology independent HDL source code
● Core can be fully customized
DESIGN FEATURES
♦ ONE GLOBAL SYSTEM CLOCK
♦ SYNCHRONOUS RESET
♦ ALL ASYNCHRONOUS INPUT SIGNALS ARE
SYNCHRONIZED BEFORE INTERNAL USE
♦ ALL LATHES IMPLEMENTED IN ORIGINAL Z80
MICROCONTROLLER ARE REPLACED BY
EQUIVALENT FLI-FLOPS.
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