CXD5602 User Manual
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3.7.3.3
Clock Supply Start and Stop
3.7.3.3.1
Clock Supply Start
The following describes the method to start clock supply to the I2C2.
1.
Clock supply start of the AHB/APB Bus Bridge.
SYSIOP_SUB_CKEN.COM_BRG
= 1'b1
SYSIOP_SUB_CKEN.AHB_BRG_COMIF
= 1'b1
2.
Clock supply start (internal circuit initialization).
SYSIOP_SUB_CKEN.I2CM_SUB
= 1'b1
Reads the address 0x041AA000 of I2C2 (dummy read to wait for completion of preceding setting)
3.
Clock stop
SYSIOP_SUB_CKEN.I2CM_SUB
= 1'b0
Reads the address 0x041AA000 of I2C2 (dummy read to wait for completion of preceding setting)
4.
Reset release
SWRESET_BUS.XRST_I2CM_SUB
= 1'b1
5.
Clock supply start
SYSIOP_SUB_CKEN.I2CM_SUB
= 1'b1
3.7.3.3.2
Clock Supply Stop
The following describes the method to stop the clock supply to the I2C2.
1.
Clock stop
SYSIOP_SUB_CKEN.I2CM_SUB
= 1'b0
Summary of Contents for CXD5602
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