EVB-LAN9252 Datasheet, PDF (22/55 Pages) Microchip Technology – EVB-LAN9252-HBI-SPI-SQI-GPIO EtherCAT® HBI/SPI+GPIO

EVB-LAN9252-HBI-SPI-SQI-GPIO EtherCAT® HBI/SPI+GPIO User’s Guide
TABLE 2-15:
Switch
SW9
SW22
SW23
SW24
SW25
16-BIT INDEXED HBI MODE SELECTION (CONTINUED)
Short Pins
Switch Knob Position
1-3
Up
1-3
Up
1-2
X (Don’t Care)
1-2
Down
X (Don’t Care)
Down
Note: If any other SoC is used, the user must check what modes are supported
and configure the HBI mode selection switches accordingly.
2.4.4.2 SPI+GPIO SELECTION
The knob position of SW11 to SW21 must be down to select the SPI+GPIO mode.
SW19, SW20, and SW21 are used to route the SPI/SQI signals from the LAN9252 to
the SoC. SW11 to SW18 are used to route the 16 GPIO signals from the LAN9252 to
the GPIO circuit.
TABLE 2-16: SW19-SW21 SIGNAL DEFINITIONS
Switch
Signals
SW19 (pin 2-3 & pin 5-6)
SW20 (pin 2-3 & pin 5-6)
SW21 (pin 2-3 & pin 5-6)
SIO3 & SIO2
SIO0 & SIO1
SCK & SCS#
SPI/SQI/I²C Aardvark
J11 and J12 are used as Aardvark/SPI/SQI headers. The respective pin details are
shown in Table 2-17.
TABLE 2-17:
Signal
SCL
SDA
SCK
SCS#
SI(SIO0)
SO(SIO1)
SIO2
SIO3
J11 & J12 HEADER PINOUT
Pin Number
J11.1
J11.3
J11.7
J11.9
J11.8
J11.5
J12.3
J12.4
DS50002333A-page 22
 2015 Microchip Technology Inc.