Z8F6421PM020SC Datasheet, PDF (23/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
3
Block Diagram
Figure 1 illustrates the block diagram of the architecture of the Z8 Encore!^® 64K Series.
XTAL / RC
Oscillator
System
Clock
eZ8
CPU
On-Chip
Debugger
Interrupt
Controller
POR/VBO
& Reset
Controller
WDT with
RC Oscillator
Memory Busses
Register Bus
Timers UARTs I²C
SPI
ADC
DMA
Flash
RAM
Controller Controller
IrDA
Flash
Memory
RAM
GPIO
Figure 1. Z8 Encore!^® 64K Series Block Diagram
CPU and Peripheral Overview
eZ8 CPU Features
The eZ8, ZiLOG’s latest 8-bit Central Processing Unit (CPU), meets the continuing
demand for faster and more code-efficient microcontrollers. The eZ8 CPU 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
PS019915-1005
Introduction