I/O control system using buffer full/empty and zero words signal

Details I/O control system using buffer full/empty and zero words signal I/O control system using buffer full/empty and zero words signal

1988-12-07

1990-06-12

Williams, Jr., Archie E.

Boots, shoes, and leggings

3642383, 3649261, G06F 300, G06F 922, G06F 1312, G06F 1328

Patent

active

049338404

ABSTRACT:
In an input/output control system: a read/write operation for a control register (REG) under a program mode is achieved by hardware; the system is started or stopped under the control of firmware, and a data transfer in the system is achieved under the control of hardware. Therefore, a high speed data communication is realized, via the system, between a central control unit (CC) and an input/output unit (IO).

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Motorola Inc., "8-Bit Microprocessor and Peripheral Data", Series C, ed. (C), 1981.

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