Z86C83/C84
Z8® MCU Microcontrollers
GENERAL DESCRIPTION (Continued)
By means of an expanded register file, the designer has
access to additional control registers for configuring per-
ipheral functions including the A/D and D/A converters,
counter/timers, and I/O port functions (Figure 1).
Power connections follow conventional descriptions
below:
Connection
Power
Circuit
VCC
Device
VCC
Notes: All Signals with a preceding front slash, "/", are
active Low, e.g., B//W (WORD is active Low); /B/W (BYTE
is active Low, only).
Ground
GND
VSS
Comparators
P00
P01
Register File
256 x 8-Bit
(2)
P31
P32
P33
P02
P03†
Port 0
Port 3
Register Bus
P04†
P05†
P06†
P34
P35
P36
Internal
Address Bus
ROM
4K x 8
Z8® Core
VDHI **
**Dual
8-Bit
DAC
VDL0 **
DAC1 **
DAC2 **
Internal Data Bus
XTAL 1/2
Machine
Timing
and
Instruction
Control
AC0/P20
/RESET
AC1/P21
AC2/P22
AC3/P23
AC4/P24
AC5/P25
AC6/P26
AC7/P27
Expanded
Register Bus
Expanded
Register File
Port 2
VCC
GND
Power
Notes:
** Not available on Z86C83.
† Not available on Z86C84.
8-Channel
8-Bit A/D
AVCC
AGND
Counter/Timer
8-Bit (2)
Figure 1. Z86C83/C84 Functional Block Diagram
2
DS96DZ80203
ZILOG [ ZILOG, INC. ]
