Texas Instruments DP83869EVM, User Manual

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16 SNLU237 – September 2018
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DP83869EVM User's Guide
Table 13. 4-Pin Dip Switch Modes (continued)
Mode SW[4:1] Feature LED Description
LED
D14
LED
D15
LED
D16
USB2MDIO
(1)
During the loop for Mode 15, USB-2-MDIO is not operational. However, other serial port terminals (that is, PuTTY) can be used
to view real-time data.
4 0100
Test Mode 4 -
Distortion
Successfully entered Test Mode 4
Red
Green
Green Off Yes
Failed to enter Test Mode 4 (Flashing
LEDs)
Red Red Red No
5 0101 Test Mode 5
Successfully entered Test Mode 5
Red
Green
Green Green Yes
Failed to set Test Mode 5 (Flashing
LEDs)
Red Red Red No
6 0110 Force 100Mbps
Force 100-Mbps speed with force MDI
Red
Green
Green Red Yes
Program failed to program the PHY
registers
Off Green Red No
7 0111 Force 10Mbps
Force 10-Mbps speed with force MDI
and PRBS on.
Off Green Red
No
Program failed to program the PHY
registers
Red Red Red
8 1000 Reverse Loopback
Successfully entered Reverse Loopback
Red
Green
Red Off Yes
Failed to enter Reverse Loopback
(Flashing LEDs)
Red Red Red No
9 1001 xMII Loopback
Successfully entered xMII Loopback
Red
Green
Red Green Yes
Failed to enter xMII Loopback (Flashing
LEDs)
Red Red Red No
10 1010 Enable BIST
Enable BIST in Copper Ethernet Mode Red Green
Red
Green
No
Program failed to program the PHY
registers
Red Red Red
11 - 14
1011 -
1110
RESERVED RESERVED - - - No
15 1111
LOOP: Read data
continuously from a
list of registers
loaded to the MC
To upload a list of registers to
continuously read from with USB-2-
MDIO: Write the hex value of the register
you want to add to the list to the register
address "LOAD"
Red
Green
Red
Green
Red
Green
Yes
(1)
To begin reading data continuously with
USB-2-MDIO: Read the register address
"OPEN"
To stop reading data continuously with
USB-2-MDIO: Read the register address
"STOP"
When running switch mode 15, data is constantly sent to the serial port. USB-2-MDIO is not capable of
supporting the constant read feature. However, other serial port terminals, that is, PuTTY, can be used.
When using a serial port terminal, copy and paste data. Do not enter in the data slowly, because the
firmware will execute as soon as the data is received.
To load a list of registers to read data from, follow this data format:
##LOADAAAAB/
• ## = Two digit PHY ID expressed in decimal form
• LOAD = the string 'LOAD' indicates to the MC to add a register to the list
• AAAA = Four character Register Address to read data from in hex form (that is, Read register 0x133h,
set AAAA = 0133)