ANXL1250FYC3F AMD (ADVANCED MICRO DEVICES), ANXL1250FYC3F Datasheet - Page 37

• Manufacturer Part Number: ANXL1250FYC3F
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ANXL1250FYC3F

• Lead Free Status / Rohs Status: Compliant

Power Management
The AMD processor system bus connection causes the
processor to resume execution of operating system and
application code at the instruction that follows the WRMSR
to the FidVidCtl MSR (MSR C001_0041h) that started the
FID_Change protocol and processor performance state
transition.
AMD Geode™ NX Processors Data Book
Figure 3-2. SOFTVID Transition During the AMD Processor System Bus Disconnect for FID_Change
SOFTVID[4:0] from the
VCC_CORE
ClkFwdRst
processor
ProcRdy
Connect
VID combination that selects 1.2 V
1.2 V
Figure 3-2 illustrates the processor SOFTVID transition
during the AMD processor system bus disconnect in
response to a FID_Change special cycle.
VID combination that
selects 1.4 V
The processor core frequency changes and new
SOFTVID[4:0] values are driven after the system
bus interface disconnect occurs and the
processor has entered a low power state. The
duration of the disconnect is dictated by
software programming the FidVidControl MSR in
the processor.
< 100 μ μ μ μ s
31177H
1.4 V
37