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Serial status

LEDs

The development board has two sets of serial port LEDs — four for serial port D and

eight for serial port B. The LEDs are connected to the TTL side of the RS232 or

RS422/485 transceivers.

 Green means corresponding signal high.

 Red means corresponding signal low.

 The intensity and color of the LED will change when the voltage is switching.

Status LEDs

Serial Port D

LEDs

Status LEDs

Serial Port B

LEDs

Signal name LED GPIO used

USER_LED1# LE5 GPIO82

USER_LED2# LE6 GPIO85

LED reference Function

RED GREEN

LE60 LE45 CTSD#/GPIO60

LE61 LE46 RTSD#/GPIO64

LE62 LE47 RXDD/GPIO62

LE63 LE48 TXDD/GPIO66

LED reference Function

RED GREEN

LE64 LE49 DCDB#/GPIO51

LE65 LE50 RIB#/GPIO55

LE66 LE51 DSRB#/GPIO53

LE67 LE52 DTRB#/GPIO57

LE68 LE53 CTSB#/GPIO52

LE69 LE54 RTSB#/GPIO56

LE70 LE55 RXDB/GPIO54

LE71 LE56 TXDB/GPIO58

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Digi NS9210 Especificaciones Pagina 45