Xilinx KCU105 User Manual

KCU105 Board User Guide www.xilinx.com 24
UG917 (v1.4) September 25, 2015
Chapter 1: KCU105 Evaluation Board Features
Micro-SD Card Interface
[Figure 1-2, callout 4]
The KCU105 board includes a secure digital input/output (SDIO) interface to provide access
to general purpose nonvolatile micro-SD memory cards and peripherals. The micro-SD card
slot supports 50 MHz high-speed micro-SD cards. The SDIO signals are connected to I/O
bank 64, which has its VCCO set to 1.8V. Fairchild FSSD07 (U107) and STMicroelectronics
STG3220 (U110) 2:1 multiplexers are used between the FPGA and the micro-SD card
connector (J83), and the XC7Z010 system controller (U111), and the micro-SD card
connector (J83). Table 1-6 shows the connections of the SD card interface to the FPGA (U1)
on the KCU105 board.
Table 1-6: SDIO Connections to FPGA U1
FPGA
(U1)
Pin
Schematic Net
Name
I/O
Standard
SD MUX/Level-Shifter
(U107)
Schematic Net
Name
SDIO Connector
(J83)
Pin #
Pin
Name
Pin #
Pin
Name
Pin # Pin Name
AD9 SDIO_CMD_FPGA LVCMOS18 13 2CMD 2 CMD SDIO_CMD_HDR 3 CMD
AL10 SDIO_CLK_FPGA LVCMOS18 11 2CLK 5 CLK SDIO_CLK_HDR 5 CLK
AH9 SDIO_DATA2_FPGA LVCMOS18 15 2DAT_2 24 DAT_2 SDIO_DATA2_HDR 1 DAT2
AN9 SDIO_DATA1_FPGA LVCMOS18 9 2DAT_1 7 DAT_1 SDIO_DATA1_HDR 8 DAT1
AP9 SDIO_DATA0_FPGA LVCMOS18 10 2DAT_0 6 DAT_0 SDIO_DATA0_HDR 7 DAT0
AH8 SDIO_DATA3_FPGA LVCMOS18 14 2DAT_3 1 DAT_3 SDIO_DATA3_HDR 2 CD_DAT3
DUAL SPDT CMOS SWITCH
(U110)
Pin #
Pin
Name
Pin #
Pin
Name
AM10 SDIO_CD_FPGA LVCMOS18 4 2S1 6 D2 SDIO_CD_HDR 13 DETECT
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Xilinx KCU105 Specifications

General

Brand	Xilinx
Model	KCU105
Category	Motherboard
Language	English