Intel 2030M AW8063801120500 Data Sheet

90

Datasheet

When the STPCLK# signal is asserted, the Stop Grant state of the processor is entered 

20 bus clocks after the response phase of the processor-issued Stop Grant 

Acknowledge special bus cycle.

Since the GTL+ signals receive power from the FSB, these signals should not be driven 

(allowing the level to return to V

TT

) for minimum power drawn by the termination 

resistors in this state. In addition, all other input signals on the FSB should be driven to 

the inactive state.

RESET# will cause the processor to immediately initialize itself, but the processor will 

stay in Stop-Grant state. A transition back to the Normal state will occur with the de-

assertion of the STPCLK# signal.

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

the FSB (see 

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. 

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. 

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 following sections for details on 

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

Stop Grant Snoop State.

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

or in HALT powerdown 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 will return to the Stop Grant state or 

HALT powerdown state, as appropriate.