Motorola MVME2600 manual Serial Port 3 Transmit Clock Configuration J18

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Hardware Preparation and Installation

For additional details on the configuration of those headers, refer to MVME712M Transition Module Preparation on page 1-14, MVME761 Transition Module Preparation on page 1-25, or to the respective user’s manuals for the transition modules (listed in Appendix D, Related Documentation) as necessary.

J20	J20
2	2

1	1
Buffer Enabled	Buffer Disabled
(factory configuration)

Serial Port 3 Transmit Clock Configuration (J18)

In synchronous serial communications using the MVME761 transition module, you can configure Serial Port 3 on the MVME2603/2604 to use the clock signals provided by the TxC signal line. On MVME761- compatible versions of the base board, header J18 configures port 3 to either drive or receive TxC. The factory configuration has port 3 set to receive TxC. J18 remains open on MVME712M-compatible versions.

To complete the configuration of Serial Port 3, you must set J2 on the MVME761 transition module (Serial Port 3 clock configuration) as well.

Figure 1-7 and Figure 1-8 (for the MVME712M) and Figure 1-14 and Figure 1-15 (for the MVME761) diagram the overall jumper settings required on the MVME2603/2604 and transition module for a Serial Port 3 DCE or DTE configuration.

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