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The MB86943B is a bus bridge that allows high-speed [data] transfers between the host processor (SPARClite* Family) and the PCI-bus. This bridge chip enables SPARClite (host CPU) access in program mode (direct master operation) to devices on a PCI bus. Also, the SPARClite host can invoke the built-in DMA function on the bridge chip to allow access to device.
Key hardware features
• Functions for SL-bus to PCI slave (possible to work in program mode)
• Functions for PCI-bus to SL-bus slave (possible to work in program mode)
• Two-channel DMA functions (between the SL-bus and the PCI-bus)
• Functions to access the SL-bus’s external areas (ECS0 through ECS2)
• Interrupt communication functions between the SL-bus and the PCI-bus by use of Door Bell and Mail Box.
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Bus bridge featu.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | MB86940 |
Fujitsu |
Companion Chip |
|
| 2 | MB86941 |
Fujitsu |
(MB86941 / MB86942) Peripheral LSI |
|
| 3 | MB86942 |
Fujitsu |
(MB86941 / MB86942) Peripheral LSI |
|
| 4 | MB86907DCR |
Fujitsu |
Highly Integrated 32-Bit RISC Microprocessor |
|
| 5 | MB86920 |
Fujitsu |
SPARC Memory Management Unit |
|
| 6 | MB86930 |
Fujitsu |
32-Bit RISC Embedded Processor |
|
| 7 | MB86931 |
Fujitsu |
32-Bit RISC Embedded Processor |
|
| 8 | MB86932 |
Fujitsu |
32-Bit RISC Embedded Processor |
|
| 9 | MB86933H |
Fujitsu |
32-Bit RISC Embedded Processor |
|
| 10 | MB86933H-20 |
Fujitsu |
32-Bit RISC Embedded Processor |
|
| 11 | MB86934 |
Fujitsu |
32-Bit RISC Embedded Processor |
|
| 12 | MB86935 |
Fujitsu |
32-Bit RISC Embedded Processor |
|