Slot Assignments - Advantech CompactPCI MIC-3000 Series User Manual

2.1 Slot Assignments

The CompactPCI specification defines slot numbering seperating for physical and logical
slots. Each slot has a physical number and a logical number (refer to the CompactPCI
specification version 2.0 R2.1 for further information on slot assignments). The physical
numbers are printed on the backplane, enclosed in circles or triangles, below each slot.
Slot 8, marked by a triangle, is the system slot and can only be used by a CPU board.
The other slots (slot 1~7) are peripheral slots and can be used by peripheral cards.
The logical number of each slot is defined according to the IDSEL signal and the
associated address used to select the slot. Table 2- 1 shows the system slot and
peripheral slot relationships on the MIB- 3081A. Physical slot 8 (system slot) has a
logical number of 1, physical slot 7 has a logical number of 2, physical slot 6 has a
logical number of 3, ..., and physical slot 1 has a logical number of 8. The connectors in
logical slot 1 are designated as 1- P1, 1- P2, 1-P3, 1- P4, and I- P5, from the bottom up.
Nomenclature for connectors in other slots is similar, such as 2- P1, 2-P2, 3- P1, 3- P2,
etc. Connector 1-P1 is a keyed connector providing 32- bit CompactPCI bus between the
system slot and the peripheral slots (2- P1~8-P1). Connector 1- P2 is an un- keyed
connector providing 64- bit CompactPCI bus between the system slot and the peripheral
slots (2- P2~ 8- P2). Connector 2- P4 to 8-P4 are un- keyed connectors which provide
H.110 CT bus used for TDM signals transmission.
Appendix A gives the pin assignment for all the slots on the MIC-3081.
Figure 2-1: Slot numbering of the MIB-3081A
MIB- 3081A User Manual --- Page
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