Motorola MVME187 manual VMEbus Interface, I/O Interfaces, Serial Port Interface

Models: MVME187

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VMEbus Interface

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Board Level Hardware Description

VMEbus Interface

The VMEchip2 provides:

Local bus to VMEbus interface

VMEbus to local bus interface

Local-VMEbus DMA controller functions

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 industry-standard connectors.

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.

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Page 42
Image 42
Motorola MVME187 manual VMEbus Interface, I/O Interfaces, Serial Port Interface