Secondary Bus Arbitration | 4 |
This chapter describes the use of jumpers to test 21152 secondary bus arbitration, an optional programmable feature. For more detailed information about the 21152 arbiter, refer to the 21152
The EB152 has two secondary bus arbiter systems:
•An internal arbiter implemented in the 21152 that supports four external masters in addition to the 21152
•An optional external arbiter implemented in an AMD MACH210A programmable device
The default setting is internal arbitration. The internal 21152 arbiter implements a
The internal arbiter can be disabled, and an external arbiter can be used instead for secondary bus arbitration. The EB152 provides a socket for an optional PAL (labeled E3 in Figure
Figure
All jumper positions assume that the EB152 is positioned with the components facing forward and the card edge facing down.
21152 |