Cypress FM4 Series - Page 669

CHAPTER 12: I/O Port
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 669
Notes:
− TIOA
Even channels are for output only.
Odd channels are for both input and output.
− TIOB
Input only.
− TIOA9, TIOA11, TIOA13, TIOA15 (odd number of "A") are not bidirectional pins so that choose
either input pin or output pin for them.
When output is chosen for odd TIOA channel, input setting will be ignored.
− Example1: Use TIOA11 as an output pin:
When TIOA11 is output to TIOA11_0, select EPFR12:TIOA11E = 01.
When TIOA11 is output to TIOA11_1, select EPFR12:TIOA11E = 10.
When TIOA11 is output to TIOA11_2, select EPFR12:TIOA11E = 11.
Settings for EPFR12:TIOA11S will be ignored.
Select ADE=0, PFR=1 for selected pins (DDR will be ignored).
All the output of other peripheral function pins which are also used by selected pins must be OFF.
− Example2: When TIOA11 is used as an input pin:
Select EPFR12:TIOA11E = 00.
When TIOA11 is input from TIOA11_0, select EPFR12:TIOA11S = 00 or 01.
When TIOA11 is input from TIOA11_1, select EPFR12:TIOA11S = 10.
When TIOA11 is input from TIOA11_2, select EPFR12:TIOA11S = 11.
Select ADE=0, PFR=1 for selected pins (DDR will be ignored).
All the output of other peripheral function pins which are also used by selected pins must be OFF.
− * When a pin is set to input, the output of the pin which is also used by selected pins (GPIO, other
peripheral function pins) can be input to the base timer as Feedback with a setting not described
above.
− This register is not initialized by deep standby transition reset.