Cypress FM4 Series - Page 621

CHAPTER 12: I/O Port
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 621
[bit28:26] IC22S: IC22 input select bits
Selects IC22 input.
bit
Description
Reading
Reads out the register value.
Writing
000
Use IC22_0 as the input pin of input capture IC22. [initial value]
001
Same as when writing 000
010
Use IC22_1 as the input pin of input capture IC22.
011
Setting is prohibited.
100
Use internal macro MFS ch.2 LSYN as input of input capture IC22.
101
Use internal macro MFS ch.6 LSYN as input of input capture IC22.
110
Setting is prohibited.
111
Setting is prohibited.
[bit25:23] IC21S: IC21 input select bits
Selects IC21 input.
bit
Description
Reading
Reads out the register value.
Writing
000
Use IC21_0 as the input pin of input capture IC21. [initial value]
001
Same as when writing 000
010
Use IC21_1 as the input pin of input capture IC21.
011
Setting is prohibited.
100
Use internal macro MFS ch.1 LSYN as input of input capture IC21.
101
Use internal macro MFS ch.5 LSYN as input of input capture IC21.
110
Setting is prohibited.
111
Setting is prohibited.
[bit22:20] IC20S: IC20 input select bits
Selects IC20 input.
bit
Description
Reading
Reads out the register value.
Writing
000
Use IC20_0 as the input pin of input capture IC20. [initial value]
001
Same as when writing 000
010
Use IC20_1 as the input pin of input capture IC20.
011
Setting is prohibited.
100
Use internal macro MFS ch.0 LSYN as input of input capture IC20.
101
Use internal macro MFS ch.4 LSYN as input of input capture IC20.
110
Setting is prohibited.
111
Setting is prohibited.
[bit19:18] FRCK2S: FRCK2 Input Select bits
Selects input for FRCK2.
bit
Description
Reading
Reads out the register value.
Writing
00
Use FRCK2_0 as the input pin of free-run timer FRCK2. [Initial value]
01
Same as Writing 00.
10
Use FRCK2_1 as the input pin of free-run timer FRCK2.
11
Setting is prohibited.