Xilinx ZCU104 User Manual page 48

Ethernet PHY LED Interface
[Figure 2-1, callout 9]
The DP83867IRPAP PHY U98 LED interface (LED_0, LED_2) uses the two LEDs embedded in
the P12 RJ45 connector bezel. The LED functional description is listed in
Table 3-15: Ethernet PHY LED Functional Description
Pin
Name
LED_2
LED_1
LED_0
The LED functions can be re-purposed with a LEDCR1 register write available via the PHY's
management data interface, MDIO/MDC. LED_2 is assigned to the activity indicator (ACT)
and LED_0 indicates link established. For more Ethernet PHY details, see the TI DS83867
data sheet [Ref
ZCU104 Board User Guide
UG1267 (v1.1) October 9, 2018
Type
Number
61 S, I/O, PD
62 S, I/O, PD
63 S, I/O, PD
16].
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Chapter 3: Board Component Descriptions
Description
By default, this pin indicates receive or transmit
activity. Additional functionality is configurable using
LEDCR1[11:8] register bits.
This pin is a strap configuration pin for RGZ devices
Note:
only.
By default, this pin indicates that 100BASE-T link is
established. Additional functionality is configurable
using LEDCR1[7:4] register bits.
By default, this pin indicates that link is established.
Additional functionality is configurable using
LEDCR1[3:0] register bits.
Table 3-15.
48
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