Zilog Z8F0880 - Manual (Page 9)

Z8 Encore! XP
®
F1680 28-Pin Series Development Kit
User Manual
UM020305-0508 Introduction
5
For more information on Z8 Encore! XP F1680 Series, refer to
Z8 Encore! XP
®
F1680 Series Product Specification (PS0250), available
for download at www.zilog.com .
CPU
Zilog’s eZ8 TM CPU, latest 8-bit CPU meets the continuing demand for
faster and more code-efficient microcontrollers. It executes a superset of
the original Z8
®
instruction set. The eZ8 CPU features include:
•
Direct register-to-register architecture allows each register to function
as an accumulator, improving execution time and decreasing the
required Program Memory
•
Software stack allows greater depth in sub-routine calls and interrupts
more than hardware stacks
•
Compatible with existing Z8 code
•
Expanded internal Register File allows access up to 4 KB
•
New instructions improve execution efficiency for code developed
using higher-level programming languages including C
•
Pipelined instruction fetch and execution
•
New instructions for improved performance including BIT, BSWAP,
BTJ, CPC, LDC, LDCI, LEA, MULT, and SRL
•
New instructions support 12-bit linear addressing of the register file
•
Up to 10 MIPS operation
•
C-Compiler friendly
•
Two to nine clock cycles per instruction
For more details on eZ8 CPU, refer to eZ8 TM CPU User Manual
(UM0128) available for download at www.zilog.com .