Motorola MVME2603-1121A Installation And Use Manual page 25

Serial Port 4 Receive Clock Configuration (J16)
In synchronous serial communications, you can configure Serial
Port 4 on the MVME2603/2604 to use the clock signals provided by
the RxC signal line. On MVME712M-compatible versions of the base
board, header J16 configures port 4 to either drive or receive RxC.
The factory configuration has port 4 set to receive RxC. J16 remains
open on MVME761-compatible versions.
To complete the configuration of Serial Port 4, you must set the
following configuration headers as well:
Figures 1-8/1-9 (for the MVME712M) and Figures 1-14/1-15 (for
the MVME761) diagram the overall jumper settings required on the
MVME2603/2604 and transition module for a Serial Port 4 DCE or
DTE configuration.
For additional details on the configuration of those headers, refer to
the MVME712M or MVME761 Transition Module sections or to the
userÕs manual for the transition module you are using (listed in the
Related Documentation appendix).
J17 (Serial Port 4 transmit clock configuration)
J20 (Serial Port 4 transmit clock receiver buffer control)
J15 on the MVME712M transition module or J3 on the
MVME761 transition module (Serial Port 4 clock
configuration)
J16
3
2
1
Drive RxC
Hardware Preparation and Installation
J16
3
2
1
Receive RxC
(factory configuration)
1
1-9