Motorola MVME2600 manual System Controller Selection J22

MVME2603/2604 Base Board Preparation

For additional details on the configuration of the MVME761 headers, refer to MVME761 Transition Module Preparation on page 1-25or to the user’s manual for the module (listed in Appendix D, Related Documentation).

	J18		J18
3		3
2		2
1		1
Drive TxC		Receive TxC

(factory configuration)

1

System Controller Selection (J22)

The MVME2603/2604 is factory-configured as a VMEbus system controller by jumper header J22. If you select the “automatic” system controller function by placing a jumper on J22 pins 2 and 3, the MVME2603/2604 determines whether it is the system controller by its position on the bus. If the board is in the first slot from the left, it configures itself as the system controller. If the MVME2603/2604 is not to be system controller under any circumstances, place the jumper on J22 pins 1 and 2. When the board is functioning as system controller, the SCON LED is turned on.

	J22		J22		J22
3		3		3
2		2		2
1		1		1
Not System Controller		Auto System Controller		System Controller
		(factory configuration)

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