RadiSys EPC-5A, Справочное руководство по аппаратному и программному обеспечению

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EPC-5A Hardware & Software Reference Manual
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VME Menu
The options in the VME menu are used to configure the EPC-5A’s VME interface.
The VME Menu is shown below.
Arbitration Priority
This option is used to select among the four (0 through 3) VMEbus priority levels
used when the EPC-5A requests the bus for a VME access. Priority level 0 is the
lowest priority while priority level 3 is the highest priority. The default is priority
level “0”.
Arbitration Mode
This option is used to select the arbitration algorithm that the EPC-5A’s VMEbus
arbiter uses when the EPC-5A is the slot 1 controller. Selecting “Round Robin”
configures the arbiter to “scan” the bus request lines from highest priority down to
lowest priority and grant the bus to the first requester it finds. Selecting “Priority”
configures the arbiter to grant the bus to the highest priority requester at any time.
The default is “Round Robin”.
P ho e n ix B I OS S et u p - Co p y ri g h t 1 98 5 - 96 P ho e n ix Te c h no l o gi e s L t d.
I t e m S p ec i fi c He l p
A r b it r a ti o n P r io r i ty : [0 ]
F1 H e lp S e le c t I t e m - / + C h an g e V a l ue s F 9 S e tu p De f a ul t s
ES C E x it S e le c t M e n u E n te r Se l e ct Su b -M e n u F 1 0 P r ev i o us V al u e s
M a in A dv a n ce d E X M V M E E x it
B u s R e l ea s e: [R O NR ]
A r b it r a ti o n M o de : [R o un d Ro b i n]
U L A : [F E 00 ( F 8) ]
V M E B o o t S ca n Ra n g e: [A 2 4 F F 00 0 0 00 h - FF F 0 00 0 0h ]
S l a ve M em o ry O ff s e t: [D i sa b l ed ]
Figure 4-10. VME Setup Menu.