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Z86E72 Datasheet(Hoja de datos) 2 Page - Zilog, Inc.

No. de Pieza. Z86E72
Descripción  OTP IR MICROCONTROLLERS
Descarga  74 Pages
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Fabricante  ZILOG [Zilog, Inc.]
Página de inicio  http://www.zilog.com
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 2 page
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Z86E72/E73
OTP IR Microcontrollers
1-2
P R E L I M I N A R Y
DS96LVO1100
GENERAL DESCRIPTION (Continued)
urable under software control to provide timing, status sig-
nals, parallel I/O with or without handshake, and an ad-
dress/data bus for interfacing external memory.
There are five basic address spaces available to support a
wide range of configurations: Program Memory, Register
FIle, Expanded Register File, Extended Data RAM and Ex-
ternal Memory. The register file is composed of 256 bytes
of RAM. It includes four I/O port registers, 16 control and
status registers and the rest are General Purpose regis-
ters. The Extended Data RAM adds 512 (E72) of usable
general-purpose registers. The Expanded Register File
consists of two additional register groups (F and D).
To unburden the program from coping with such real-time
problems as generating complex waveforms or receiving
and demodulating complex waveform/pulses, the Z86E7X
family offers a new intelligent counter/timer architecture
with 8-bit and 16-bit counter/timers (Figure 1). Also includ-
ed are a large number of user-selectable modes, and two
on-board comparators to process analog signals with sep-
arate reference voltages (Figure 2).
Notes: All Signals with a preceding front slash, "/", are ac-
tive Low, e.g., B//W (WORD is active Low); /B/W (BYTE is
active Low, only).
Power connections follow conventional descriptions be-
low:
Connection
Circuit
Device
Power
VCC
VDD
Ground
GND
VSS
Figure 1. Z86E7X Counter/Timer Block Diagram
HI16
LO16
16-Bit
T16
TC16H
TC16L
HI8
LO8
And/Or
Logic
Clock
Divider
Glitch
Filter
Edge
Detect
Circuit
8-Bit
T8
TC8H
TC8L
8
8
16
8
Input
SCLK
1 2 48
Timer 16
Timer 8/16
Timer 8
8
8
8
8
8




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