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Board Level Hardware Description
VMEbus Interface
The VMEchip2 provides:
❏Local bus to VMEbus interface
❏VMEbus to local bus interface
❏
❏VMEbus system controller functions
I/O Interfaces
The MVME187 provides onboard I/O for many system applications.
❏The I/O functions include:
ÐSerial ports
ÐPrinter port
ÐEthernet transceiver interface
ÐSCSI mass storage interface
❏An external I/O transition board such as the MVME712X should be used to convert the I/O connector pinout to
❏The configuration headers are located on the MVME187 and the MVME712X transition board.
The I/O on the MVME187 is connected to the VMEbus P2 connector. The MVME712X transition module is connected to the MVME187 through cables and a P2 adapter board.
Serial Port Interface
The CD2401 serial controller chip (SCC) implements the four serial ports. The serial ports support the standard baud rates (110 to 38.4K baud). The four serial ports are different functionally because of the limited number of pins on the P2 I/O connector.