19.4.9 Dynamic Clock Gating Register

Note: Clearing this register optimizes the power consumption of the system bus circuitry.
Name: CCFG_DYNCKG
Offset: 0x011C
Reset: 0x00000007
Property: Read/Write

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
          
Access  
Reset  
Bit 76543210 
      EFCCKGBRIDCKGMATCKG 
Access R/WR/WR/W 
Reset 111 

Bit 2 – EFCCKG EFC Dynamic Clock Gating Enable

ValueDescription
0

EFC dynamic clock gating enabled. The Embedded Flash Controller circuitry is driven by the clock only when an access to the Flash memory is being performed. Power consumption is optimized.

1

EFC dynamic clock gating disabled. The Embedded Flash Controller is always driven by the clock in Active mode.

Bit 1 – BRIDCKG Bridge Dynamic Clock Gating Enable

ValueDescription
0

Bridge dynamic clock gating enabled. The peripheral bridge circuitry is driven by the clock only when a transfer to/from any peripheral located on the APB bus is being performed. Power consumption is optimized.

1

Bridge dynamic clock gating disabled. The peripheral bridge circuitry is always driven by the clock in Active mode.

Bit 0 – MATCKG MATRIX Dynamic Clock Gating

ValueDescription
0

MATRIX dynamic clock gating enabled. The MATRIX circuitry is driven by the clock only when a transfer to a peripheral is being performed. Power consumption is optimized.

1

MATRIX dynamic clock gating disabled. The MATRIX circuitry is always driven by the clock in Active mode.