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Customer support .............................................................................. 7
Chapter 1: About the Module .............................. 9
Features and functionality ............................................................10
Module variant ................................................................................10
Module pinout ..........................................................................10
Pinout legend: Type ..........................................................................11
X1 pinout .......................................................................................11
X2 pinout .......................................................................................15
Configuration pins — CPU .............................................................23
Default module CPU configuration .........................................................23
Configuration pins — Module .........................................................24
Identification of the module ................................................................24
Module pin configuration ....................................................................24
Clock generation .......................................................................25
Clock frequencies .............................................................................25
Changing the CPU speed .....................................................................26
Boot process ............................................................................26
Chip selects .............................................................................27
Chip select memory map ....................................................................27
SDRAM banks ............................................................................27
Multiplexed GPIO pins .................................................................27