Infineon AURIX lite Kit V2, Руководство пользователя, Страница: 13 / 27

AURIX
™ lite Kit V2
Hardware Description
Board Users Manual 13 Revision October, 2020
2.7 Ethernet
The AURIX
™ lite Kit V2
provide a RJ45 connector (X5) for twisted pair ethernet connections.The board use a
DP83825I Low Power 10/100 Mbps Ethernet Physical Layer Transceiver from Texas Instruments as physical
interface device. For more information about the ethernet modul see AURIX
™ User’s Manual, about the PHY
see the DP83825I datasheet from TI website.
For the connection between AURIX
™ and PHY is used RMII.
For the MD connection (e.g. for PHY configuration) there is used P21.2 and P21.3.
2.8 Optional Cypress Semper
™ (Secure) Flash
The AURIX
™ lite Kit V2
provide the possibility to assemble an external flash. Usable devices are Cypress
Semper
™ NOR Flash Device Family S25HL and Cypress Semper™ Secure NOR Flash Device Family S35HL in
SOIC-16 package. For more information about the flashs please see https://www.cypress.com/products/semper-
nor-flash-memory and https://www.cypress.com/event/semper-secure-nor-flash-memories . If you assemble a
flash then assemble also the ceramic capacitor C64 with 100 nF (size 0603) and the resistor R67 with 0
Ω (size
0603). In case of use a Semper
™ Secure NOR Flash you can also assemble the resistor R67 with 0 Ω (size 0603)
to connect the interrupt output of the flash to the AURIX
™ pin P20.9 (SCU_REQ7 on TC3X5; SCU_REQ11 on
TC2X5). The AURIX
™ support only single SPI protocol, Dual and Quad SPI protocol is not possible.
The flash is connected to P22.0, P22.1, P22.3 (QSPI4 on TC3X5; QSPI3 on TC2X5). Pin P22.2 (Slave Select
Output 3 of QSPI4 on TC3X5; Slave Select Output 12 of QSPI3 on TC2X5) is used as slave select.
Please note that the used QSPI is shared with the optional F-RAM (see Optional F-RAM ).
2.9 Optional F-RAM
The AURIX
™ lite Kit V2
provide the possibility to assemble an external serial F-RAM. Usable devices are
Cypress F-RAM FM25VN10-G and Cypress F-RAM Serie CY15B in SOIC-8 package. For more information about
the F-RAMs please see
https://www.cypress.com/products/f-ram-nonvolatile-ferroelectric-ram .
If you assemble F-RAM then assemble also the ceramic capacitor C65 with 100 nF (size 0603).
The F-RAM is connected to P22.0, P22.1, P22.3 (QSPI4 on TC3X5; QSPI3 on TC2X5). Pin P23.1 (Slave Select
Output 6 of QSPI4 on TC3X5; Slave Select Output 13 of QSPI3 on TC2X5) is used as slave select.
Unfortunately there is no connection on pin 3 (#WP) and pin 7 (#HOLD) of the F-RAM. Please check the datasheet
if the used F-RAM has internal weak pull-up connected or need an external connection to VDD. If external
connection is needed then make such a connection via wire wrap line.
Please note that the used QSPI is shared with the optional flash (see Optional Cypress Semper
™ (Secure) Flash
).