Z8 Microcontrollers
Z8 MCU Product Overview ZiLOG
1-2 UM001601-0803
1.1 Z8 MCU FAMILY OVERVIEW (Continued)
• Low-Power: CMOS with two standby modes; STOP and
HALT.
• Full Z8 Instruction Set: Forty-eight basic instructions,
supported by six addressing modes with the ability to operate
on bits, nibbles, bytes, and words.
Figure 1-1. Z8 MCU Block Diagram
Port 3
Counter/
Timers (2)
Interrupt
Control
Analog
Comparators (2)
Output
Input
ALU
FLAG
Register
Pointer
Register File
256 x 8-Bit
Machine Timing
& Instruction Control
RESET, WDT,
POR
Prg. Memory
512/K x 8-Bit
Program
Counter
VCC
GND
XTAL
Address or I/O
(Nibble Programmable)
Port 2
Port 0
Port 1
/AS /DS
R//W /RESET
44
8
Address/Data or I/O
(Byte Programmable)
I/O
(Bit Programmable)