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XMC-A825-16 ARINC-825 16 Channel XMC / CANFlight-16 User's Manual REV C
Document: TP2216-901_Users_Manual.pdf
Page 14 of 39
© Innovative Control Systems
Project:
TP2216-901
Author: K. Jacobson Date: 11.05.2019
Rev.: C
4
XMC-A825-16 ON Board I/O Connectors
4.1 On Board µSDXC card connector
XMC-A825-16 offers a µSD card slot that supports FAT-32 formatted µSD and µSDHC cards. All standard
µSD and µSDHC cards with sizes ranging from 1 GB to 128GB may be used with XMC-A825-16 if they
support the Serial Peripheral Interface (SPI) mode and are capable of operating under a sustained SPI data
rate of 25 Mhz.
The standard pinout of µSDHC cards is shown in Figure Illustration, the corresponding signal assignment in
Table Table. Figure Illustration shows a standard µSDHC card as an example. All standard µSD, µSDHC,
and µSDXC cards with sizes ranging from 1GB to 128 GB maybe used with XMC-A825-16. The µSD card
interface is fully compatible with the µSD/HC specification of the SD Card Organization (
www.sdcard.org
).
The MicroSD card interface is used to configure the XMC-A825-16 during startup using a dedicated
configuration file (see section 8 ) and to perform firmware upgrades (see section 9 ). Options for CAN data
recording on µSDHC card are available on request.
Figure 4-1 Typical µSDHC Card
Figure 4-2 µSDHC Pinout
Pin
Signal Name
Signal Description
1
RSD
Reserved
2
CS*
Chip Select (active low)
3
DI
Data In
4
VDD
Supply Voltage
5
SCK
System Clock
6
VSS
Supply Voltage Ground
7
DO
Data Out
8
RSD
Reserved
Table 4: µSDHC Connector Signal Definition