30.1.1 Block diagram
Flash
Controller
Flash Memory
Microcontroller
Core
EzPort Enabled
G
Reset Controller
Reset
Reset Out
EZP_CS
EZP_CK
EZP_D
EZP_Q
EzPort
Figure 30-1. EzPort block diagram
30.1.2
Features
EzPort includes the following features:
• Serial interface that is compatible with a subset of the SPI format.
• Ability to read, erase, and program flash memory.
• Ability to reset the microcontroller, allowing it to boot from the flash memory after
the memory has been configured.
30.1.3
Modes of operation
The EzPort can operate in one of two modes, enabled or disabled.
Overview
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
682 NXP Semiconductors
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