Asus P2B-B User Manual page 33

III. INSTALLATION
20. SB-Link™ Connector (6-1 pin SBLINK)
Using Intel's PC-PCI and serialized IRQ protocols found in this motherboard's
AGPset, this connector allows Sound Blaster 16 compatibility to AWE64D (Digi-
tal) or other PCI audio cards, enabling users to play Real-mode DOS games and
multimedia applications. SB-Link acts as a bridge between the motherboard and
the PCI audio card by providing the DMA and IRQ signals present in the ISA
bus but not available on the PCI bus.
P2B-B SB-Link™ Connector
21. SMBus Connector (5-1 pin SMB)
This connector allows you to connect SMBus devices. SMBus devices commu-
nicate by means of the SMBus with an SMBus host and/or other SMBus de-
vices. The SMBus or System Management Bus is a specific implementation of
2
an I C bus, which is a multi-master bus, that is, multiple chips can be connected
to the same bus and each one can act as a master by initiating data transfer.
P2B-B SMBus Connector
PC/PCI Grant
Sideband Signal
NOTE: Pin 3 is removed to ensure the
correct orientation of the cable on it.
SMBCLK
Ground
+5V
ASUS P2B-B User's Manual
DGND
1 2
PC/PCI Request
Sideband Signal
DGND
Serial IRQ
6
5
SMBDATA
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