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Embedded System Tools Guide (EDK 6.2i) www.xilinx.com 235

UG111 (v1.4) January 30, 2004 1-800-255-7778

Bus Interface

Format

BUS_INTERFACE BUS=bus_label, BUS_STD=bus_std, BUS_TYPE=bus_type

Where bus_type is either MASTER, MASTER_SLAVE, SLAVE, or UNDEF.

EXCLUDE_BUSIF

The EXCLUDE_BUSIF keyword defines all BUS_INTERFACE connections when other

BUS_INTERFACE connections are present. Supports a colon “:” separated list of elements.

But, may also take a single element.

For example, a master-slave interface and slave interface connections are not allowed

when the other is present.

Format

BUS_INTERFACE BUS=MSPLB, BUS_STD=PLB, BUS_TYPE=MASTER_SLAVE, EXCLUDE_BUSIF=SPLB

BUS_INTERFACE BUS=SPLB, BUS_STD=PLB, BUS_TYPE=SLAVE, EXCLUDE_BUSIF=MSPLB

SHARES_ADDR

The SHARES_ADDR keyword defines all BUS_INTERFACE address space regions that

need to be checked against one another. Default is ALL. Supports a colon “:” separated list

of elements. But, may also take a single element.

For example, the LMB and OPB memory mapped peripherals of MicroBlaze the LMB must

not conflict. Also, the PLB and OCM address space of PPC405 in which the PLB and OCM

address space must not conflict.

Format

BUS_INTERFACE BUS=DOPB, BUS_STD=OPB, BUS_TYPE=MASTER, SHARES_ADDR=DLMB

BUS_INTERFACE BUS=IOPB, BUS_STD=OPB, BUS_TYPE=MASTER, SHARES_ADDR=ILMB

BUS_INTERFACE BUS=DLMB, BUS_STD=LMB, BUS_TYPE=MASTER, SHARES_ADDR=DOPB

BUS_INTERFACE BUS=ILMB, BUS_STD=LMB, BUS_TYPE=MASTER, SHARES_ADDR=IOPB

Bus Interface Naming Conventions

The following list are recommendations for bus labels:

Table 16-2: Recommended Bus Labels

Bus Label Description

SDCR Slave DCR interface

SLMB Slave LMB interface

MOPB Master OPB interface

MSOPB Master-slave OPB interface

SOPB Slave OPB interface

MPLB Master PLB interface

MSPLB Master-slave PLB interface

SPLB Slave PLB interface

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