Cypress FM4 Series - Page 683

CHAPTER 12: I/O Port
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 683
 TYPE3-M4, TYPE4-M4, TYPE5-M4 products.
bit
Description
Reading
Reads out the register value.
Writing
00
Uses SCS60_0 at the input pin of MFS ch.6 SCS.
Does not produce output. [Initial value]
01
Uses SCS60_0 at the input pin of MFS ch.6 SCS
Uses SCS60_0 at the output pin.
10
Uses SCS60_1 at the input pin of MFS ch.6 SCS.
Uses SCS60_1 at the output pin.
11
Uses SCS60_2 at the input pin of MFS ch.6 SCS.
Uses SCS60_2 at the output pin.
Set these bits as 00 and EPFR23 if the pins of SCS61_x – SCS63_x are used.
Notes:
− For the assignment of the corresponding MFS ch.A and MFS ch.B to MFS channel supporting
I2C FastMode+, see “Data Sheet” of the product used.
− For TYPE1-M4, TYPE2-M4, TYPE6-M4 products, set SCS6B and SCS7B bits to use SCS6_x
and SCS7_x pins.
For TYPE3-M4, TYPE4-M4, TYPE5-M4 products, set SCS6B and SCS7B bits if just SCS60_x
and SCS70_x pins are used.
Then, if SCS61_x to SCS63_x and SCS71_x to SCS73_x pins are used in TYPE3-M4 products,
set SCS6B and SCS7B bits as “0” and set pin setting by SCS60B, SCS61E, SCS62E, SCS63E,
SCS70B, SCS71E, SDC72E, SDS73E bits on EPFR23.
− This register is not initialized by deep standby transition reset.