JG82875 S L8DB Intel, JG82875 S L8DB Datasheet - Page 31

• Manufacturer Part Number: JG82875 S L8DB
• Manufacturer: Intel

Specifications of JG82875 S L8DB

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

2.5.4
Intel
®
82875P MCH Datasheet
AGP Strobes
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).
GADSTB0 (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)
Signal Name
(s/t/s)
(s/t/s)
(s/t/s)
(s/t/s)
Type
AGP
AGP
AGP
AGP
AGP
AGP
I/O
I/O
I/O
I/O
I
I
AD Bus Strobe-0: GADSTB0 provides timing for 4X clocked data on
GAD[15:0] and GC/BE[1:0]# in AGP 2.0 signaling mode. The agent that is
providing data drives this signal.
AD Bus Strobe First-0: In AGP 3.0 signaling mode GADSTBF0 strobes the
first and all odd numbered data items with a low-to-high transition. It is used
with GAD [15:0] and GC#/BE[1:0]
AD Bus Strobe-0 Complement: GADSTB0# is the differential complement to
the GADSTB0 signal. It is used to provide timing for 4X clocked data in AGP
2.0 signaling mode.
AD Bus Strobe Second-0: In AGP 3.0 signaling mode GADSTBS0 strobes
the second and all even numbered data items with a low-to-high transition.
AD Bus Strobe-1: GADSTB1 provides timing for 4X clocked data on
GAD[31:16] and GC/BE[3:2]# in AGP 2.0 signaling mode. The agent that is
providing data drives this signal.
AD Bus Strobe First-1: In AGP 3.0 signaling mode GADSTBF1 strobes the
first and all odd numbered data items with a low-to-high transition. It is used
with GAD[31:16], GC#/BE[3:2], DBI_HI, and DBI_LO.
AD Bus Strobe-1 Complement: GADSTB1# is the differential complement to
the GADSTB1 signal. It is used to provide timing for 4X clocked data in AGP
2.0 signaling mode.
AD Bus STrobe Second-1: In AGP 3.0 signaling mode GADSTBS1 strobes
the second and all even numbered data items with a low-to-high transition.
Sideband Strobe: GSBSTB provides timing for 4X clocked data on the
GSBA[7:0] bus in AGP 2.0 signaling mode. It is driven by the AGP master
after the system has been configured for 4X clocked sideband address
delivery.
Sideband Strobe First: In AGP 3.0 signaling mode GSBSTBF strobes the
first and all odd numbered data items with a low-to-high transition.
Sideband Strobe Complement: GSBSTB# is the differential complement to
the GSBSTB signal. It is used to provide timing for 4X clocked data in AGP
2.0 signaling mode.
Sideband Strobe Second: In AGP 3.0 signaling mode GSBSTBS strobes
the second and all even numbered data items with a low-to-high transition.
Description
Signal Description
31