Data processing system capable of storing firmware data in contr

Details Data processing system capable of storing firmware data in contr Data processing system capable of storing firmware data in contr

1989-08-31

1994-03-08

Shaw, Gareth D.

Boots, shoes, and leggings

3642383, 3642397, 3642419, 3642423, 364DIG1, G06F 1312

Patent

active

052934926

ABSTRACT:
In a data processing system having a data path (30) between a memory device (11) and input-output devices (12), and a holding device (18) for holding first through N-th firmware data, where N represents an integer greater than one, an input-output processor (13) comprises first through N-th control memory layers of control memories (31, 32, 33) and a data controller (34) connected to the holding device. Responsive to a firmware load instruction (23), the data controller reads the first through the N-th firmware data from the holding device as first through N-th read-out data. The holding device makes the memory device memorize the first through the N-th read-out data as first through N-th memorized data. Connected to the control memories, the data controller makes the control memories of the first through the N-th control memory layers memorize the first through the N-th memorized data through the data path. In this event, the data controller makes at least one control memory of each of the first through the N-th control memory layers simultaneously memorize each of the first through the N-th memorize data. The holding device may be included in one of the input-output devices. The firmware data may be stored in the control memories successively from the first control memory layer to the N-th control memory layer. Alternatively, storage of the firmware data may be made from the N-th control memory layer to the first control memory layer.

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