Datasheet

Signal Description
28 Datasheet
FSB_TRDYB
O
GTL+
Host Target Ready: Indicates that the target of the processor
transaction is able to enter the data transfer phase.
FSB_RSB_[2:0]
O
GTL+
Response Signals: Indicates type of response according to
the table at left:
Encoding Response Type
000 Idle state
001 Retry response
010 Deferred response
011 Reserved (not driven by MCH)
100 Hard Failure (not driven by MCH)
101 No data response
110 Implicit Writeback
111 Normal data response
FSB_RCOMP
I/O
A
Host RCOMP: Used to calibrate the Host GTL+ I/O buffers.
This signal is powered by the Host Interface termination rail
(VTT). Connects to FSB_XRCOMP1IN in the package.
FSB_SCOMP
I/O
A
Slew Rate Compensation: Compensation for the Host
Interface for rising edges.
FSB_SCOMPB
I/O
A
Slew Rate Compensation: Compensation for the Host
Interface for falling edges.
FSB_SWING
I/O
A
Host Voltage Swing: These signals provide reference voltages
used by the FSB RCOMP circuits. FSB_XSWING is used for the
signals handled by FSB_XRCOMP.
FSB_DVREF
I/O
A
Host Reference Voltage: Reference voltage input for the
Data signals of the Host GTL interface.
FSB_ACCVREF
I/O
A
Host Reference Voltage: Reference voltage input for the
Address signals of the Host GTL interface.
Signal Name Type Description