Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1996-12-30
1999-08-31
Cabeca, John W.
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711167, G06F 1310
Patent
active
059467061
ABSTRACT:
An improved programmable control sequencer and a method for its map allocation capable of reducing a size of program RAM in a disk controller, of a magnetic disk drive storage system. The programmable control sequencer includes a program random access memory (RAM) having a 16.times.7 bit size of storage area, provided with a branch/data selection field, an encoded next address/count field and an output field. The branch/data selection field has either one of a branch condition or count field enable information and selects a given data register to compare data read out from a disk with data of the selected data register. The encoded next address/count field has an encoded value of either a next address or a count value according to the branch condition. The output field is used for testing a synchronization outside of said programmable control sequencer. An address generator generates an address for accessing the program random access memory in accordance with the information of the branch/data selection field and the encoded next address/count field. A decoder decodes the encoded next address/count value to provide the decoded information to the address generator. A decoder selection decoder decodes the information of the branch/data selection field.
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Kong Jun-Jin
Park Chan-geu
Park Jung-Il
Park Yong-woo
Bushnell Esq. Robert E.
Cabeca John W.
Chow Christopher S
Samsung Electronics Co,. Ltd.
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