1.
    发明专利
    未知

    公开(公告)号:FI914608A

    公开(公告)日:1992-04-02

    申请号:FI914608

    申请日:1991-10-01

    Applicant: IBM

    Abstract: A data processing system includes a memory controller for accessing a dynamic memory having a plurality of SIMMs that differ in size and speed of operation. The memory controller is operable in response to a request to access a given SIMM to read a SIMM definition register and dynamically produce memory access signals in accordance with the timing requirements of the particular SIMM being accessed. Such signals are set each time a SIMM is accessed. The signals provide different clock periods of RAS precharge time, RAS to CAS time, and CAS pulse width.

    2.
    发明专利
    未知

    公开(公告)号:NO913799D0

    公开(公告)日:1991-09-27

    申请号:NO913799

    申请日:1991-09-27

    Applicant: IBM

    Abstract: A data processing system includes a memory controller for accessing a dynamic memory having a plurality of SIMMs that differ in size and speed of operation. The memory controller is operable in response to a request to access a given SIMM to read a SIMM definition register and dynamically produce memory access signals in accordance with the timing requirements of the particular SIMM being accessed. Such signals are set each time a SIMM is accessed. The signals provide different clock periods of RAS precharge time, RAS to CAS time, and CAS pulse width.

    3.
    发明专利
    未知

    公开(公告)号:DE69132539D1

    公开(公告)日:2001-03-29

    申请号:DE69132539

    申请日:1991-08-30

    Applicant: IBM

    Abstract: A data processing system includes a processor for accessing a memory in either a direct mode or an indirect mode. The memory includes at least two memory banks and two decoders for decoding bank addresses. The decoders produce bank select signals. In direct mode, the decoder outputs are generated according to which bank is addressed. In interleave mode, the two decoder outputs are ANDed to select both banks covering the address range of the selected banks.

    5.
    发明专利
    未知

    公开(公告)号:DE69124905D1

    公开(公告)日:1997-04-10

    申请号:DE69124905

    申请日:1991-08-30

    Applicant: IBM

    Abstract: A data processing system includes a memory controller for accessing a dynamic memory having a plurality of SIMMs that differ in size and speed of operation. The memory controller is operable in response to a request to access a given SIMM to read a SIMM definition register and dynamically produce memory access signals in accordance with the timing requirements of the particular SIMM being accessed. Such signals are set each time a SIMM is accessed. The signals provide different clock periods of RAS precharge time, RAS to CAS time, and CAS pulse width.

    6.
    发明专利
    未知

    公开(公告)号:FI914608A0

    公开(公告)日:1991-10-01

    申请号:FI914608

    申请日:1991-10-01

    Applicant: IBM

    Abstract: A data processing system includes a memory controller for accessing a dynamic memory having a plurality of SIMMs that differ in size and speed of operation. The memory controller is operable in response to a request to access a given SIMM to read a SIMM definition register and dynamically produce memory access signals in accordance with the timing requirements of the particular SIMM being accessed. Such signals are set each time a SIMM is accessed. The signals provide different clock periods of RAS precharge time, RAS to CAS time, and CAS pulse width.

    MEMORY CONTROLLER FOR DIRECT OR INTERLEAVE MEMORY ACCESSING

    公开(公告)号:AU8345391A

    公开(公告)日:1992-04-09

    申请号:AU8345391

    申请日:1991-08-30

    Applicant: IBM

    Abstract: A data processing system includes a processor for accessing a memory in either a direct mode or an indirect mode. The memory includes at least two memory banks and two decoders for decoding bank addresses. The decoders produce bank select signals. In direct mode, the decoder outputs are generated according to which bank is addressed. In interleave mode, the two decoder outputs are ANDed to select both banks covering the address range of the selected banks.

    10.
    发明专利
    未知

    公开(公告)号:NO913799L

    公开(公告)日:1992-04-02

    申请号:NO913799

    申请日:1991-09-27

    Applicant: IBM

    Abstract: A data processing system includes a memory controller for accessing a dynamic memory having a plurality of SIMMs that differ in size and speed of operation. The memory controller is operable in response to a request to access a given SIMM to read a SIMM definition register and dynamically produce memory access signals in accordance with the timing requirements of the particular SIMM being accessed. Such signals are set each time a SIMM is accessed. The signals provide different clock periods of RAS precharge time, RAS to CAS time, and CAS pulse width.

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