Intel DG33TL Product Specification - Page 48

Add-in Card Connectors, 2.2.3, Auxiliary Front Panel Power/Sleep LED Header - smbus

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Intel Desktop Board DG33TL Technical Product Specification 2.2.2.2 Add-in Card Connectors The board has the following add-in card connectors: • PCI Express x16: one connector supporting simultaneous transfer speeds up to 4 GBytes/sec of peak bandwidth per direction and up to 8 GBytes/sec concurrent bandwidth • PCI Express x1: two PCI Express x1 connectors. The x1 interface supports simultaneous transfer speeds up to 250 Mbytes/sec of peak bandwidth per direction and up to 500 MBytes/sec concurrent bandwidth • PCI Conventional (rev 2.3 compliant) bus: one PCI Conventional bus add-in card connector. PCI Conventional bus add-in cards with SMBus support can access sensor data and other information residing on the board. Note the following considerations for the PCI Conventional bus connectors: • The PCI Conventional bus connector is bus master capable. • SMBus signals are routed to the PCI Conventional bus connector. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the board. The specific SMBus signals are as follows: ⎯ The SMBus clock line is connected to pin A40. ⎯ The SMBus data line is connected to pin A41. 2.2.2.3 Auxiliary Front Panel Power/Sleep LED Header Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. Table 19. Auxiliary Front Panel Power/Sleep LED Header Pin Signal Name 1 HDR_BLNK_GRN 2 Not connected 3 HDR_BLNK_YEL In/Out Out Out Description Front panel green LED Front panel yellow LED 48

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Intel Desktop Board DG33TL Technical Product Specification
48
2.2.2.2
Add-in Card Connectors
The board has the following add-in card connectors:
•
PCI Express x16:
one connector supporting simultaneous transfer speeds up to
4 GBytes/sec of peak bandwidth per direction and up to 8 GBytes/sec concurrent
bandwidth
•
PCI Express x1:
two PCI Express x1 connectors.
The x1 interface supports
simultaneous transfer speeds up to 250 Mbytes/sec of peak bandwidth per
direction and up to 500 MBytes/sec concurrent bandwidth
•
PCI Conventional (rev 2.3 compliant) bus: one PCI Conventional bus add-in card
connector.
PCI Conventional bus add-in cards with SMBus support can access
sensor data and other information residing on the board.
Note the following considerations for the PCI Conventional bus connectors:
•
The PCI Conventional bus connector is bus master capable.
•
SMBus signals are routed to the PCI Conventional bus connector.
This enables PCI
Conventional bus add-in boards with SMBus support to access sensor data on the
board.
The specific SMBus signals are as follows:
⎯
The SMBus clock line is connected to pin A40.
⎯
The SMBus data line is connected to pin A41.
2.2.2.3
Auxiliary Front Panel Power/Sleep LED Header
Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel
header.
Table 19. Auxiliary Front Panel Power/Sleep LED Header
Pin
Signal Name
In/Out
Description
1
HDR_BLNK_GRN
Out
Front panel green LED
2
Not connected
3
HDR_BLNK_YEL
Out
Front panel yellow LED