Service Manuals, User Guides, Schematic Diagrams or docs for : HP terminal 264x 13255-91252_Memory_Controller_Module_Jun81

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                             BP 13255

                     MEMORY CONTROLLER MODULE
                    Manual Part 10. 13255-912q9
                                         1/.2S.;l
                              PRINTED

                             JUN-23-81




        DATA TERMINAL
    TECHNICAL INFORMATION




                                         HEWLETT    ifi   PACKARD



Printed in U.S.A.
13255                                                                       13255-91249/02
Processor (8085A-2) Module                                                  REV FEB-14-82




1.0           INTRODUCTION.
              The processor (8085A-2) module functions as the . . in controlling unit
              for the 2747F terminal. It also contains the hardware to intertace the
              processor to the external keyboard. The processor retches instructions
              trom memory and pertorms I/O operations on other .adul.s attached to
              the terminal data bus (backplane ass.bly). !be 8085A-2 lIOdule has the
              capability ot down loading code in a RAM based 2647F.

2.0           OPERATING PARAMETERS.
              A summary of operating parameters tor the Processor (8085A-2) Module is
              contained in tables 1.0 through 6.7




                               Table 1.0   Physical Parameter.

================================================================================
1      PART         1                                    Size (L x W x D)          Weight 1
I NUMBER       1         NOMENCLATURE         1 +/-0.100 Inche. 1 (Pounds) 1
/==============1==============================1======================1=========1
1              I                              1                      1         1
I     02640-60249   I   PROCESSOR (8085A-2)          I     12.5 x 4.0 x 0.5    1    0

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