Mailing system peripheral interface with replaceable prom for ac

Details Mailing system peripheral interface with replaceable prom for ac Mailing system peripheral interface with replaceable prom for ac

1982-09-30

1986-08-12

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 1212

Patent

active

046060030

ABSTRACT:
An interface between a system processor of an automated mailing system and selected peripheral devices carries peripheral support hardware and software for communication with the peripherals. The interface includes a board having a memory wherein programs for formatting communications with the peripherals are stored. A working memory for the temporary storage of commands and data for communication to the peripherals and a peripheral controller for establishing a communications link with a selected peripheral are also carried on the interface board. A replaceable PROM is carried on the interface for accessing the output enable pins of the program and working memories. The PROM is replaced in the field when a different program or working memory is to be substituted.

REFERENCES:
patent: 3934227 (1976-01-01), Worst
patent: 4028682 (1977-06-01), Weber et al.
patent: 4028683 (1977-06-01), Divine et al.
patent: 4141068 (1979-02-01), Mager et al.
patent: 4377852 (1983-03-01), Thompson
patent: 4456966 (1984-06-01), Bringol et al.
patent: 4473877 (1984-09-01), Tulk

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