Gpio Pin Use; Leds - Digi Connect SP Hardware Reference Manual

GPIO Pin Use

Register Bit
PORTA7 - PORTA0
PORTC7
PORTC6
PORTC5
PORTC4 - PORTC0

LEDs

General information
The device server has two types of LEDs:
The development kit supplies software to control the LEDs. This behavior can often be
modified by manipulating the LED table in the BSP code. See gpio.c for details.
As with any GPIO output, the GPIO register must be properly configured in order to assert
values on the pin. The appropriate bits should be configured as:
GPIO Pin Use
External
Category
Interface
Reserved NA
Reserved NA
Connected to the
Allocated
red LED
Connected to the
Available
reset button.
Reserved NA
LEDs connected directly to GPIO pins on the processor and controlled directly
in software
LEDs connected to other hardware components (normally the Ethernet
hardware) and not directly programmable by the operating system
CMODE = 0
CDIR = 1
Description
NA
NA
Used as a power indicator (always on). It could
be reassigned as a general purpose LED. It
must remain a GPIO output for the LED to
operate correctly. The LED is lit when the
signal is a logic "high."
It should be configured as a GPIO input.
NA
2 1