Motorola MVME1X7P - Manual (Page 189)

LCSR Programming Model
http://www.motorola.com/computer/literature 2-99
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from the retry and the board does not lose its turn on the
VMEbus. For this reason, it is recommended that this bit
remain low.
NOELBBSY When this bit is high, the early release feature of bus busy
feature on the VMEbus is disabled. The VMEchip2 drives
BBSY
∗
low whenever VMEbus AS
∗
is low. When this bit
is low, the early release feature of bus busy feature on the
VMEbus is not disabled.
DISMST When this bit is high, the VME LED on the MVME1x7P
illuminates on assertion of Local Bus Reset or when the
VMEchip2 ASIC is driving Local Bus Busy. When this
bit is low, the
VME LED on the MVME1x7P illuminates
on assertion of Local Bus Reset, when the VMEchip2 is
driving Local Bus Busy, or when the VMEchip2 is driving
the VMEbus address strobe.
(The signal is also available at J2, the Remote Reset
connector behind the front panel. This connector allows
the Reset, Abort, and LED functions to be extended to the
exterior of the enclosure containing the board.)
DISSRAM When this bit is high, the SRAM decoder in the
VMEchip2 is disabled. When this bit is low, the SRAM
decoder in the VMEchip2 is enabled. Because the SRAM
decoder in the VMEchip2 is not used on the MVME1x7P,
this bit must be set.
REVEROM This function is not used on the MVME1x7P. This bit
must not be set.
MPIRQEN This function is not used on the MVME1x7P. This bit
must not be set.