10/100/1,000Mb/S Tri-Speed Ethernet Phy - Xilinx VCU110 User Manual

10/100/1,000Mb/s Tri-Speed Ethernet PHY

[Figure 1-2, callout 18]
The VCU110 evaluation board uses the Marvell Alaska PHY device (88E1111) at U58 for
Ethernet communications at 10 Mb/s, 100 Mb/s, or 1,000 Mb/s. The board supports SGMII
mode only. The PHY connection to a user-provided Ethernet cable is through RJ-45
connector P3, a Halo HFJ11-1G01E-L12RL with built-in magnetics and status LEDs.
On power-up, or on reset, the PHY is configured to operate in SGMII mode with PHY
address 0b00111 using the settings shown in
written using software commands passed over the MDIO interface.
Table 1-44: Board Connections for PHY Configuration Pins
Pin Bit[2]
CFG0 PHYADR[2]
CFG1 ENA_PAUSE
CFG2 ANEG[3]
CFG3 ANEG[0]
CFG4 HWCFG_MD[2]
CFG5 DIS_FC
CFG6 SEL_BDT
VCU110 Evaluation Board
UG1073 (v1.2) March 26, 2016
Bit[1] Bit[0]
PHYADR[1] PHYADR[0]
PHYADR[4] PHYADR[3]
ANEG[2] ANEG[1]
ENA_XC DIS_125
HWCFG_MD[1] HWCFG_MD[0] 100 SGMII to Cu mode.
DIS_SLEEP HWCFG_MD[3] 110
INT_POL 75/50 OHM
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Chapter 1: VCU110 Evaluation Board Features
Table 1-44. These settings can be over
Description
PHYAddr 00111.
111
Do not advertise
the PAUSE bit.
000
Auto-Neg en,
111
advertise all caps;
prefer slave. Auto
crossover enabled.
111
125 CLK option
disabled.
Fiber/copper
auto-detect
disabled. Sleep
move disabled.
MDC/MDIO
selected.
Active-Low
010
interrupt. 50Ω
SerDes option.
Pin to Constant Mapping
Pin Bit[2:0]
VCC2V5
111
LED_LINK10
110
LED_LINK100
101
LED_LINK1000
100
LED_DUPLEX
011
LED_RX
010
LED_TX
001
GND
000
82
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