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==Auxiliary connectors interface ==
=== Description ===
* JTAG
[[File:{{{nomeETRA-som}}EVK-EVBauxiliary-Auxiliary connectors-connector.png|thumb|center|500px|Auxiliary connectors connector]]
===Signals ===
See the [[ETRA SOM/ETRA Hardware/Power and Reset/JTAG|JTAG]] page for more informations.
See the [[ETRA SOM/ETRA Hardware/Power and Reset/Reset scheme and control signals|reset scheme]] for more informations.
* write protect for carrier eeprom
** tie to ground for write inside the carrier eeprom
** the first ''xxx'' byte 32 bytes of the eeprom are used to store the CB ConfigID, the corruption of these bytes prevents the system from boot.
* write protect for NAND
** this pin allow to prevent unwanted writes, tie to ground when the NAND are not to be written.