CXD5602 User Manual
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3.7.4.3
Clock Supply Start and Stop
3.7.4.3.1
Clock Supply Start
The following describes the method to start clock supply to the I2C4.
1.
Clock supply start (internal circuit initialization).
PMU_CORE_CKEN.RTC_PCLK
= 1'b1
PMU_CORE_CKEN.PMU_RTC_PCLK
= 1'b1
Reads the address 0x04106000 of I2C4 (dummy read to wait for completion of preceding setting)
2.
Clock stop
PMU_CORE_CKEN.RTC_PCLK
= 1'b0
PMU_CORE_CKEN.PMU_RTC_PCLK
= 1'b0
Reads the address 0x04106000 of I2C4 (dummy read to wait for completion of preceding setting)
3.
Reset release
SWRESET_BUS.XRST_PMU_I2CM
= 1'b1
4.
Clock supply start
PMU_CORE_CKEN.RTC_PCLK
= 1'b1
PMU_CORE_CKEN.PMU_RTC_PCLK
= 1'b1
3.7.4.3.2
Clock Supply Stop
The following describes the method to stop the clock supply to the I2C4.
1.
Clock stop
PMU_CORE_CKEN.RTC_PCLK
= 1'b0
PMU_CORE_CKEN.PMU_RTC_PCLK
= 1'b0
Summary of Contents for CXD5602
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