Microchip Technology EVB-LAN9252-3PORT, User Manual

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EVB-LAN9252-3PORT EtherCAT
®
ESC PHY Connection Mode User’s Guide
DS50002403A-page 20

2015 Microchip Technology Inc.
FIGURE 3-4: SLAVE ADDRESS ALLOCATION
3.2.4 SPI + 3 Port Mode Selection
3.2.4.1 SPI
The SPI lines are directly connected to the SOC. No jumper settings are required for
SPI.
3.2.4.2 SPI/SQI/I
2
C AARDVARK
®
J11 & J12 connectors are used for Aardvark/SPI headers. Respective pin details are
given below in
Table 3-13 . Resisters R61, R62 & R122 are need to be populated to use
this option. By default, R61, R62 & R122 are DNP.
3.2.4.3 3 PORT MODE
The following Assembly/jumper settings are used to configure LAN9252 in to 3-Port
mode.
3.2.4.3.1 Assembly of the Boards
The MII Female Connector (J27) is used to connect External PHY Board.
EVB-LAN8740 MII PHY Board have been used as External PHY Board as shown in
Figure 3-2 .
TABLE 3-12: EEPROM SWITCH
Ref. Des Description Settings
SW3 I
2
C EEPROM Address selection
(A0,A1,A2) see
Figure 3-4
ON for logic 0 (default)
OFF for logic 1
TABLE 3-13: SPI/SQI/I
2
C AARDVARK
®
PIN DETAILS
Signal Pin No
SCL J11.1
SDA J11.3
SCK J11.7
SCS# J11.9
SI(SIO0) J11.8
SO(SIO1) J11.5
SIO2 J12.3
SIO3 J12.4