Intel Pentium 4 Processor Extreme Edition on 0.13 Micron Process in the 775-Land Package Datasheet

68 Datasheet

Land Listing and Signal Descriptions

VTT_OUT_LEFT

VTT_OUT_RIGHT

Output

The VTT_OUT_LEFT and VTT_OUT_RIGHT signals are included to provide a

voltage supply for some signals that require termination to V

on the

motherboard. Contact your Intel representative for further details and

documentation.

For future processor compatibility some signals are required to be pulled up to

VTT_OUT_LEFT or VTT_OUT_RIGHT. Refer to the following table for the

signals that should be pulled up to VTT_OUT_LEFT and VTT_OUT_RIGHT.

NOTE: For the Pentium 4 processor Extreme Edition in the 775-land package,

the voltage level for VTT_OUT_LEFT is equal to the processor V

The VTT_OUT_RIGHT voltage levels will be at the V

level.

VTT_SEL Output

The VTT_SEL signal is used to select the correct V

voltage level for the

processor.

VTTPWRGD Input

The processor requires this input to determine that the V

voltages are stable

and within specification.

NOTE: VTTPWRGD is for compatible processors. VTTPWRGD is not used in

the Pentium 4 processor Extreme Edition in 775-land package. This pin

is required for compatibility with Voltage Regulator Down (VRD10) 10.1

Design Guide standards.

Table 4-3. Signal Description (Sheet 1 of 9)

Name Type Description

Pull-up Signal Signals to be Pulled Up

VTT_OUT_RIGHT

VTT_PWRGOOD, VID[5:0], GTLREF0, TMS, TDI,

TDO, BPM[5:0], other VRD components

VTT_OUT_LEFT

RESET#, BR0#, PWRGOOD, TESTHI1, TESTHI8,

TESTHI9, TESTHI10, TESTHI11, TESTHI12