AMD XILINX VPK180 - Page 35

The VPK180 evaluaon board includes a secure digital input/output (SDIO) interface to provide
access to general purpose non-volale SDIO memory cards and peripherals. This interface is
used for the SD boot mode and supports SD2.0 and SD3.0 access.
The SDIO interface signals PMC_MIO[26:36, 51] are connected to XCVP1802 ACAP bank 501,
which has its VCCO set to 1.8V. Six SD interface nets PMC_MIO[26, 29, 30:33] are passed
through a NXP NVT4857UK SD 3.0-compliant voltage level-translator U104. This translator is
present between the Versal ACAP and the SD card connector (J302). The NXP NVT4857UK
U104 device provides SD3.0 capability with SDR104 performance. The following gure shows
the connecons of the SD card interface on the VPK180 evaluaon board.
Figure 10: SD Card Interface Connections
X26058-120921
The following table lists the NVT4857UK U104 adapter pinout.
Table 8: NVT4857UK U104 Adapter Pinout
Aries Adapter Pin Number NVT4857UKAZ Pin Number NVT4857UKAZ Pin Name
1 D2 CLKA
2 C3, C2 GND
3 B2 CD
4 C1 CMDA
5 E2 CLK_FB
6 Unused Unused
7 B3 VCCB
8 Unused Unused
9 Unused Unused
10 A3 VSD
11 A2 VCCA
Chapter 3: Board Component Descriptions
UG1582 (v1.0) February 21, 2023 www.xilinx.com
VPK180 Board User Guide 35
Send Feedback