Z86L79 Datasheet, PDF (3/58 Pages) Zilog, Inc. – Low-Voltage Microcontroller

Zilog
P00
P01
P02
P03
P04
P05
P06
P07
P20
P21
P22
I/O Bit
P23
Programmable P24
P25
P26
P27
Z86L79/80
Low-Voltage Microcontroller
Port 0
Port 2
Register File
256 x 8-Bit
Register Bus
ROM
4K/8K x 8
Internal
Address Bus
Internal Data Bus
Z8 Core
Expanded
Register
File
Expanded
Register Bus
Port 3
Pref1
P31
P32
1
P33
P34
P35
P36
P37
Two Analog
Comparators
Interrupt Control
Machine
Timing
&
Instruction
Control
XTAL2
XTAL1
Counter/Timer 8
8-Bit
Counter/Timer 16
16-Bit
Power
VDD
VSS
Figure 2. Functional Block Diagram
PRELIMINARY
3-3