-- Copyright © 1993 by  McGraw-Hill, Inc. and Zainalabedin Navabi

-- FIGURE 9.14 




-- INTERFACE DESCRIPTION OF PARVAN :

LIBRARY cmos;
USE cmos.basic_utilities.ALL;
LIBRARY par_library;
USE par_library.par_utilities.ALL;
USE par_library.par_parameters.ALL;
--

ENTITY par_central_processing_unit IS
  GENERIC (read_high_time, read_low_time, 
           write_high_time, write_low_time : TIME := 2 US;
           cycle_time : TIME := 4 US; run_time : TIME := 140 US);
  PORT (clk : IN qit;
        interrupt : IN qit;
        read_mem, write_mem : OUT qit; 
        databus : INOUT wired_byte BUS := "ZZZZZZZZ"; adbus : OUT twelve
       );
END par_central_processing_unit;
--