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48 Programming Information HW400p/M Technical Reference - 1.0, March 6, 2002

Board Option Register (BOR) The Board Option Register (BOR) is a read-only register. This register indicates

the configuration and product type.

Table 5-15 shows the bits assigned to the BOR.

The BOR bits and states are defined as:

Table 5-15 Board Option Register – FFE2000D

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Reserved BUSMODE ENET RSVD TYPE3 TYPE2 TYPE1 TYPE0

BUSMODE = 0 PMC Site is incapable of performing PCI protocol

= 1 PMC Site is capable of performing PCI protocol

ENET = 0 Ethernet circuit not present

= 1 Ethernet circuit is present

TYPE[3:0] = 0000 HW400c/R+

= 0001 HW400c/F+

= 0010 HW400p/p+

= 0011 HW400p/M

other values are reserved for future products

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SBE HighWire HW400c/2 Specifiche Pagina 48