Cypress FM4 Series - Page 590

CHAPTER 12: I/O Port
590 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
Operation in Deep Standby Mode
GPIO function is selected in deep standby mode. Figure 2-5 shows I/O port operation in deep standby
mode.
Figure 2-5 I/O Port Operation in Deep Standby Mode
I/O Port (SPL=1)
Deep standby
mode
CPU status
Normal
operation
Power OFF
Reset
status
Normal operation
Program
setting valid
GPIO Program setting valid
Deep
standby
Mode
transition
Deep
standby
mode
return
Deep
standby
transition
reset release
I/O port (SPL=0)
Program
setting valid
GPIO Program setting valid
Hi-Z
Note:
− For the state of each pin in deep standby mode, refer to the pin state table in the Data Sheet of
the product used.