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CPU Profiles A. Haverinen, Nokia. Simple CPU profile. Application: CPU core initiators with non-packet interface Initiator read/write interface Features: Address mapped communication 32 bit address Natural data width, constrained block (burst) size Byte enables Bufferable to posted

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Cpu profiles a haverinen nokia

CPU ProfilesA. Haverinen,Nokia


Simple cpu profile
Simple CPU profile

  • Application:

    • CPU core initiators with non-packet interface

    • Initiator read/write interface

  • Features:

    • Address mapped communication

    • 32 bit address

    • Natural data width, constrained block (burst) size

    • Byte enables

    • Bufferable to posted

    • Caching etc mapped to MReqInfo

    • Single-thread

    • Does not describe test extensions


Simple cpu profile1
Simple CPU Profile

MCmd,

Maddr, Mdata, Mburst*, MByteEn, MReqInfo

Master

Slave

MCmd

SCmdAccept

SData, SResp

SResp

MCmd ={ Idle | Write NonPost | Read | ReadEx}

MBurstPrecise=1, MBurstSeq=1, INCR, STRM, WRAP


Packet cpu write profile
Packet CPU Write Profile

  • Application:

    • CPU write port with single-request burst capability

    • Initiator write-only interface

  • Features:

    • packet type communication

    • 32 bit address

    • Separate Command/Write data flow

    • Natural data width

    • Bufferable to posted

    • Caching etc mapped to MReqInfo

    • Byte enables

    • Tagged

    • Does not describe test extensions


Packet cpu write profile1
Packet CPU Write Profile

MCmd,

Maddr, Mburst*, MReqInfo

Master

Slave

MCmd

SCmdAccept

Mdata, MDataByteEn

MDataValid

SDataAccept

SResp

MRespAccept

MCmd ={ Idle | Write | Write NonPost}

MBurstPrecise=1, MBurstSeq=1, MburstSingleReq=1,

INCR, STRM, WRAP


Packet cpu read profile
Packet CPU Read Profile

  • Application:

    • CPU read port with single-request burst capability

    • Initiator read-only interface

  • Features:

    • packet type communication

    • 32 bit address

    • Single-request read data flow

    • Natural data width

    • Bufferable to posted

    • Caching etc mapped to MReqInfo

    • Byte enables

    • Tagged

    • Does not describe test extensions


Packet cpu write profile2
Packet CPU Write Profile

MCmd

Maddr, Mburst*, MReqInfo

Master

Slave

MCmd

SCmdAccept

SData

SResp

MRespAccept

MCmd ={ Idle | Read | ReadEx}

MBurstPrecise=1, MBurstSeq=1, MburstSingleReq=1,

INCR, STRM, WRAP


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