3000 datasheet(90/102 Pages) INTEL

90 / 102 page

Features

Dual-Core Intel® Xeon® Processor 3000 Series Datasheet

A transition to the Grant Snoop state will occur when the processor detects a snoop on

the FSB (see Section 6.2.4).

While in the Stop-Grant State, SMI#, INIT#, and LINT[1:0] will be latched by the

processor, and only serviced when the processor returns to the Normal State. Only one

occurrence of each event will be recognized upon return to the Normal state.

While in Stop-Grant state, the processor will process a FSB snoop.

6.2.3.2

Extended Stop Grant State

Extended Stop Grant is a low power state entered when the STPCLK# signal is asserted

and Extended Stop Grant has been enabled via the BIOS.

The processor will automatically transition to a lower frequency and voltage operating

point before entering the Extended Stop Grant state. When entering the low power

state, the processor will first switch to the lower bus ratio and then transition to the

lower VID.

The processor exits the Extended Stop Grant state when a break event occurs. When

the processor exits the Extended Stop Grant state, it will resume operation at the lower

frequency, transition the VID to the original value, and then change the bus ratio back

to the original value.

6.2.4

Extended HALT Snoop State, HALT Snoop State, Extended

Stop Grant Snoop State, and Stop Grant Snoop State

The Extended HALT Snoop State is used in conjunction with the new Extended HALT

state. If Extended HALT state is not enabled in the BIOS, the default Snoop State

entered will be the HALT Snoop State. Refer to the sections below for details on HALT

Snoop State, Stop Grant Snoop State and Extended HALT Snoop State, and Extended

Stop Grant Snoop State.

6.2.4.1

HALT Snoop State, Stop Grant Snoop State

The processor will respond to snoop transactions on the FSB while in Stop-Grant state

or in HALT Power Down state. During a snoop transaction, the processor enters the

HALT Snoop State:Stop Grant Snoop state. The processor will stay in this state until the

snoop on the FSB has been serviced (whether by the processor or another agent on the

FSB). After the snoop is serviced, the processor returns to the Stop Grant state or HALT

Power Down state, as appropriate.

6.2.4.2

Extended HALT Snoop State, Extended Stop Grant Snoop State

The Extended HALT Snoop State is the default Snoop State when the Extended HALT

state is enabled via the BIOS. The processor will remain in the lower bus ratio and VID

operating point of the Extended HALT state or Extended Stop Grant state. While in the

Extended HALT Snoop State or Extended Stop Grant Snoop State, snoops are handled

the same way as in the HALT Snoop State or Stop Grant Snoop State. After the snoop is

serviced, the processor will return to the Extended HALT state or Extended Stop Grant

state.

3000 Scheda tecnica(PDF) 90 Page - Intel Corporation

3000 Scheda tecnica(HTML) 90 Page - Intel Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Scheda tecnica Scarica

Link URL