Clock Topology

The processor has 2 reference clocks that drive the various components within the Processor:

• Processor reference clock or base clock (BCLK). 100MHz with SSC.
• Fixed clock. 38.4MHz without SSC (crystal clock).

BCLK drives the following clock domains:

• Core
• Ring
• Graphics (GT)
• Memory Controller (MC)
• System Agent (SA)

PCTGLK drives the following clock domains:

• OPIO

Fixed clock drives the following clock domains:

• Display
• SVID controller
• Time Stamp Counters (TSC)
• Type C subsystem