CHAPTER 2-2: Clock Gating
94 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
[bit15:0] MFSCK[15:0]: Settings for operation clock supply and gating to multi-function
serial interface
These bits control the operation clock supply and gating to the multi-function serial interface. The
correspondence between each bit and the channel is shown below:
bit0 - MFSCK0: Multi-function serial interface channel 0
bit1 - MFSCK1: Multi-function serial interface channel 1
bit2 - MFSCK2: Multi-function serial interface channel 2
bit3 - MFSCK3: Multi-function serial interface channel 3
bit4 - MFSCK4: Multi-function serial interface channel 4
bit5 - MFSCK5: Multi-function serial interface channel 5
bit6 - MFSCK6: Multi-function serial interface channel 6
bit7 - MFSCK7: Multi-function serial interface channel 7
bit8 - MFSCK8: Multi-function serial interface channel 8
bit9 - MFSCK9: Multi-function serial interface channel 9
bit10 - MFSCK10: Multi-function serial interface channel 10
bit11 - MFSCK11: Multi-function serial interface channel 11
bit12 - MFSCK12: Multi-function serial interface channel 12
bit13 - MFSCK13: Multi-function serial interface channel 13
bit14 - MFSCK14: Multi-function serial interface channel 14
bit15 - MFSCK15: Multi-function serial interface channel 15
When the relevant bit is set to 1, the bus clock is supplied to the channel of the corresponding
multi-function serial interface to enable the function of the multi-function serial interface. For products to
which the relevant multi-function serial interface channel is not mounted, do not change the relevant bit
from the initial value.
When the relevant bit is set to 0, the bus clock input to the channel of the corresponding multi-function
serial interface is gated. While the bus clock input is gated, the multi-function serial interface function of
the corresponding channel cannot be used.
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