Hardware-Supported Software Features - ZiLOG Z8 Encore! XP Dual F1680 Series User Manual

For more information on the Z8 Encore! XP F1680 Series, refer to Z8
Encore! XP
download at www.zilog.com.

Hardware-Supported Software Features

Zilog's eZ8 MCU, latest 8-bit MCU meets the continuing demand for
faster and more code-efficient microcontrollers. It executes a superset of
the original Z8
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For more details on eZ8 MCU, refer to eZ8
(UM0128), available for download at www.zilog.com.
UM021204-0508
Z8 Encore! XP
®
F1680 Series Product Specification (PS0250), available for
®
instruction set. The eZ8 MCU 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.
2 to 9 clock cycles per instruction.
®
Dual F1680 Series Development Kit
TM
CPU User Manual
User Manual
3
Introduction