ebus(4) - NetBSD Manual Pages

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EBUS(4)                 NetBSD Kernel Interfaces Manual                EBUS(4)


NAME

     EBus -- introduction to SPARC EBus bus support and drivers


SYNOPSIS

     ebus* at pci?


DESCRIPTION

     The EBus bus is designed to provide the ability to put ISA and tradi-
     tional Intel-style peripherals in a SPARC based system with a minimal
     amount of glue logic.

     In older machines, it is typically implemented in the PCIO IC from SME,
     which also implements a hme(4) compatible PCI network device (`network')
     and four DMA channels, similar to the DMA seen in the esp(4) SCSI DMA.

     In newer machines, it is typically implemented using a ALi Super I/O or
     Southbridge chip, which may also provide com(4) serial ports and a
     mcclock(4) real-time clock.


SEE ALSO

     intro(4), com(4), esp(4), hme(4), mcclock(4)

     Peripheral Component Interconnect Input Output Controller,
     Part No.: 802-7837-01,
     https://web.archive.org/web/20040728231845/http://www.sun.com/oem/products/manuals/802-7837.pdf,
     Sun Microelectronics, March 1997.

NetBSD 11.99                     June 16, 2026                    NetBSD 11.99