Cypress FM4 Series - Page 107

CHAPTER 2-2: Clock Gating
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 107
[bit15:14] IISCRST[1:0]: Reset control of MFS I
2
S Interface
These bits control the reset of each channel of MFS I
2
S Interface. The correspondence between each bit
and the MFS I
2
S Interface channel is shown below.
bit14 – IISCRST0: MFS I
2
S Interface channel 0
bit15 – IISCRST1: MFS I
2
S Interface channel 1
If the relevant bit is set to 1, the channel of corresponding MFS I
2
S Interface becomes a reset state, the
MFS I
2
S Interface operation stops, and the register settings are initialized. For products to which the
relevant MFS I
2
S Interface channel is not mounted, do not change this bit from the initial value. To release
the reset state, be sure to set this bit to 0 again.
bit
Description
0
Releases the reset of MFS I
2
S Interface channel corresponding to the relevant bit.(Initial value)
1
Issues the reset to MFS I
2
S Interface channel corresponding to the relevant bit.
[bit13:12] ICCRST[1:0]: Reset control of Smart Card Interface
These bits control the reset of each channel of Smart Card Interface. The correspondence between each
bit and the Smart Card Interface channel is shown below.
bit12 – ICCRST0: Smart Card Interface channel 0
bit13 – ICCRST1: Smart Card Interface channel 1
If the relevant bit is set to 1, the channel of corresponding Smart Card Interface becomes a reset state,
the Smart Card Interface operation stops, and the register settings are initialized. For products to which
the relevant Smart Card Interface channel is not mounted, do not change this bit from the initial value. To
release the reset state, be sure to set this bit to 0 again.
bit
Description
0
Releases the reset of Smart Card Interface channel corresponding to the relevant bit.(Initial value)
1
Issues the reset to Smart Card Interface channel corresponding to the relevant bit.
[bit11:9] Reserved: Reserved bits
Write 0 to these bits.
[bit8] SDCRST: Reset control of SD card interface
This bit controls the reset of the SD card interface unit. If this bit is set to 1, the SD card interface
becomes a reset state, the operation of the SD card interface stops, and the register settings are
initialized. For products to which the SD card interface is not mounted, do not set this bit to 1. To release
the above-mentioned reset state, be sure to set this bit to 0 again.
bit
Description
0
Releases the reset of SD card interface. (Initial value)
1
Issue the reset signal to SD card interface.
[bit7] Reserved: Reserved bits
Write 0 to these bits.