Intel® 865G/865GV Chipset Datasheet - download.intel.nl - Intel

Signal Description2.5.4 AGP StrobesSignal Name Type DescriptionGADSTB0 (2.0)GADSTBF0 (3.0)GADSTB0# (2.0)GADSTBS0 (3.0)GADSTB1 (2.0)GADSTBF1 (3.0)GADSTB1# (2.0)GADSTBS1 (3.0)GSBSTB (2.0)GSBSTBF (3.0)GSBSTB# (2.0)GSBSTBS (3.0)I/O(s/t/s)AGPI/O(s/t/s)AGPI/O(s/t/s)AGPI/O(s/t/s)AGPIAGPIAGPAD Bus Strobe-0: GADSTB0 provides timing for 4X clocked data onGAD[15:0] and GC/BE[1:0]# in AGP 2.0 signaling mode. The agent that isproviding data drives this signal.AD Bus Strobe First-0: In AGP 3.0 signaling mode GADSTBF0 strobes thefirst and all odd numbered data items with a low-to-high transition. It is usedwith GAD[15:0] and GC#/BE[1:0].AD Bus Strobe-0 Complement: GADSTB0# is the differential complement tothe GADSTB0 signal. It is used to provide timing for 4X clocked data in AGP2.0 signaling mode.AD Bus Strobe Second-0: In AGP 3.0 signaling mode GADSTBS0 strobesthe second and all even numbered data items with a low-to-high transition.AD Bus Strobe-1: GADSTB1 provides timing for 4X clocked data onGAD[31:16] and GC/BE[3:2]# in AGP 2.0 signaling mode. The agent that isproviding data drives this signal.AD Bus Strobe First-1: In AGP 3.0 signaling mode GADSTBF1 strobes thefirst and all odd numbered data items with a low-to-high transition. It is usedwith GAD[31:16], GC#/BE[3:2], DBI_HI, and DBI_LO.AD Bus Strobe-1 Complement: GADSTB1# is the differential complement tothe GADSTB1 signal. It is used to provide timing for 4X clocked data in AGP2.0 signaling mode.AD Bus STrobe Second-1: In AGP 3.0 signaling mode GADSTBS1 strobesthe second and all even numbered data items with a low-to-high transition.Sideband Strobe: GSBSTB provides timing for 4X clocked data on theGSBA[7:0] bus in AGP 2.0 signaling mode. It is driven by the AGP masterafter the system has been configured for 4X clocked sideband addressdelivery.Sideband Strobe First: In AGP 3.0 signaling mode GSBSTBF strobes thefirst and all odd numbered data items with a low-to-high transition.Sideband Strobe Complement: GSBSTB# is the differential complement tothe GSBSTB signal. It is used to provide timing for 4X clocked data in AGP2.0 signaling mode.Sideband Strobe Second: In AGP 3.0 signaling mode GSBSTBS strobesthe second and all even numbered data items with a low-to-high transition.NOTE:1. The term (2.0) following a signal name indicates its function in AGP 2.0 signaling mode (1.5 V swing).2. The term (3.0) following a signal name indicates its function in AGP 3.0 signaling mode (0.8 V swing).Intel ® 82865G/82865GV GMCH Datasheet 35