NXP Semiconductors K22F series User Manual

The Sector Erase (SE) command erases the contents of one sector of flash memory. The
three byte address sent after the command byte can be any address within the sector to
erase, but must be a 64-bit aligned address (the three LSBs must be zero). Attempts to
erase from an initial address which does not fall within the valid address range (see Flash
memory map for EzPort access) for the flash results in the WEF flag being set.
This command is not accepted if the WEF, WIP or FS field is set or if the WEN field is
not set in the EzPort status register.
30.3.1.8 Bulk Erase
CMD[7:0]=0xC7
EZP_CK
EZP_CS
EZP_D
EZP_Q
Figure 30-9. Bulk Erase command sequence
The Bulk Erase (BE) command erases the entire contents of flash memory, ignoring any
protected sectors or flash security. Flash security is disabled upon successful completion
of the BE command.
Attempts to issue a BE command while the BEDIS field is set results in the WEF flag
being set in the EzPort status register. Also, this command is not accepted if the WEF or
WIP field is set or if the WEN field is not set in the EzPort status register.
30.3.1.9
EzPort Reset Chip
CMD[7:0]=0xB9
EZP_CK
EZP_CS
EZP_D
EZP_Q
Figure 30-10. Reset Chip command sequence
Command definition
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
690 NXP Semiconductors

NXP Semiconductors K22F series Specifications

General

Brand	NXP Semiconductors
Model	K22F series
Category	Controller
Language	English