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OCPRF100 MP Server System Technical Product Specification
Revision 1.0
104
8.7.5 CONN_MODE
This becomes the TMS input on the JTAG ports of all the PLDs. TMS is a mode select pin which
controls the function of the JTAG port. If the enable signal is high (i.e., disabled), the mode signal
is degated from the TMS pin, and TMS is held high, which keeps the JTAG port in an idle state.
8.7.6 CONN_SCLK
This is connected to the TCK clock input on the JTAG port of all the PLDs.
8.8 Electrical, Mechanical Specifications
This section specifies the operational parameters and physical characteristics for the backplane.
8.8.1 Connectors
This section defines all the major connectors on the backplane. All the connectors on the back-
plane are keyed.
8.8.1.1 Connector Specifications
Table 8-6: Connector Specifications shows the quantity, manufacturer, and Intel part number for
connectors on the backplane. Refer to manufacturers’ documentation for more information on
connector mechanical specifications.
8.8.1.2 SCSI SCA-2 Drive Connector
An SCA-2 connector is used on the primary side of the board. The pinout is the same as SCA-1.
Connector pin assignment is for the current draft Small Form Factor-8046 Rev. 1.1 document.
Table 8-6: Connector Specifications
Item Quantity Manufacturers and Part Number Description
1 2 AMP* (787535-1) 80 pin right angle SCA-2 connector.
2 1 BERG* (73957-1002) 240 pin recp right angle 5X48.
3 1 FOXCONN* (HL03177-P4) 34 pin (2x17) BMC connector KY5.
4 2 Molex* (15-24-4342) 4 pin power connector.
5 1 Molex (87256-4043) 40 pin IDE cable.
6 1 FOXCONN (HL07256-D6) 50 pin SE SCSI connector.