51.6.1 ISC Clock Management

The ISC module provides the ISC_MCK output clock to the image sensor.

The ISC_MCK clock has three selectable clock sources configurable via ISC_CLKCFG.MCSEL, and one programmable clock divider (ISC_CLKCFG.MCDIV). The clock is enabled using ISC_CLKEN.MCEN.

Figure 51-9. Clock Divider Block Diagram

The ISC_MCK clock has one programmable clock divider (ISC_CLKCFG.MCDIV). The clock is enabled using ISC_CLKEN.MCEN.

Figure 51-10. Clock Divider Block Diagram

The ISC requires the internal clock isc_ispck. This clock is also fully programmable and is enabled using ISC_CLKEN.ICEN. This clock is mandatory for ISC operations.

The ISC is designed to accept input signals that are asynchronous to the isc_ispck.

Synchronization is done internally as long as the following relationship holds:
  • ISC_PCK frequency is lower than or equal to isc_ispck frequency,
  • isc_ispck frequency is greater than or equal to hclock frequency.