Maximum #43 10 июня 1997

Железо

Reprinted with cont. - Z80/ZILOG - basic information (continued).

           Reprinted with CONTINUATION.


 Translation (C) KOLOVRAT


       Z8400/Z84C00 NMOS / CMOS Product Description
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                PARAMETERS



        Part Speed ​​Package

                  (MHz)



        MOS

        Z0840004 April 28 DIP

        Z0840006 6.17 28 DIP

        Z0840008 August 28 DIP



        CMOS

        CZ84C006 DC to 6.17 28 DIP, 44 PLCC / QFP

        Z84C0008 DC to August 28 DIP, 44 PLCC / QFP

        Z84C0010 DC to October 28 DIP, 44 PLCC / QFP

        Z84C0020 DC to 20 28 DIP, 44 PLCC / QFP



      - 5.0-volt power supply range
      - Economical consumption (CMOS)
      - Two 16-bit index registers
      - The system interrupts with programmable priority
      - Three modes of maskable interrupt


             GENERAL DESCRIPTION


   Z8400/Z84C00 Microprocessors offer higher performance and 
more efficient use of memory than earlier generations. 
Performance 6-20 Mhz - satisfy a wide range of applications. 


   The internal registers contain 208 bits of memory reading -
records that are accessible to the programmer. These registers 
include two sets of six general purpose registers that can be 
used individually or as an 8 - or 16-bit pairs. In addition, 
there are two sets Akkomulyatora and flag registers. Command 
group "Exchange" makes the set of principal or alternative 
available to the programmer. CPU also contains Stack pointer, 
two index registers, the register of Regeneration (Counter), 
and the interrupt register. Z8400/Z84C00 CPU supported by an 
extensive family of peripheral controllers. 



      Z8420/Z84C20 Parallel I / O Circuit Product Description

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               PARAMETERS



         Part Speed ​​Package

                 (MHz)



        NMOS

        Z0842004 April 1940 DIP, PLCC 44

        Z0842006 6.17 40 DIP, PLCC 44



        CMOS

        Z84C2006 DC to 6.17 40 DIP, 44 PLCC / QFP

        Z84C2008 DC to August 1940 DIP, 44 PLCC / QFP

        Z84C2010 DC to October 1940 DIP, 44 PLCC / QFP



     - 5.0-volt power supply range

     - Economical consumption (CMOS)

     - Two 8-bit port with the synchronization

     - Interrupt controller with programmable priority

     - Four programmable operating modes

     - Direct interface between the Z80 and the periphery.



             GENERAL DESCRIPTION


   The device is a parallel input / output (PIO) consists of two
programmable ports with TTL-interface. CPU has the ability to 
program the Z80 PIO on a large chapel, which provides access to 
a large number of devices that support specification of the 
exchange Z80 PIO. These devices include Most of keyboards on a 
punched tape drives, printers and programmatery PROM. 


   Peripheral controllers Z80 series are widely used system
Interrupt Z80 CPU. All the logic required for cascading
interrupt structure, directly integrated into the PIO.


   PIO is also able to generate interrupts under certain 
conditions the state of peripheral devices. For example, PIO 
can be programmed to interrupt when you change certain signals 
from the periphery Ready or Strobe. This feature reduces the 
time, the survey states peripherals 



   Z80 PIO communicates with peripherals through two
independent, general-purpose port input - output, designated
Port A and Port B. Each port has eight data bits and two
signal synchronization, Ready, and Strobe, who manage the 
transmission of data. Ready indicates the peripheral device 
that the port ready for data transfer. Strobe - reports CPU, 
the data from Peripheral accepted. Z80 PIO can be programmed to 
operate in four modes: Output (Mode 0), Input (Mode 1), 
bidirectional (mode 2), and Bit control (Mode 3).



               TO BE CONTINUED