发明名称 |
Programmable control sequencer of disk controller and method for map allocation therefor |
摘要 |
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 16x7 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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申请公布号 |
US5946706(A) |
申请公布日期 |
1999.08.31 |
申请号 |
US19960777137 |
申请日期 |
1996.12.30 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
PARK, CHAN-GEU;KONG, JUN-JIN;PARK, JUNG-IL;PARK, YONG-WOO |
分类号 |
G11B21/00;G06F3/06;G11B5/596;G11B20/10;G11B20/12;(IPC1-7):G06F13/10 |
主分类号 |
G11B21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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