3 Development Board Circuit
3.8 SD Card
DBUG385-1.1E
17(23)
Pin No.
Signal Name FPGA Pin No. BANK I/O
Description
14
LVDS_A4_N H16
0
2.5V
Differential Channel 4-
17
LVDS_A5_P J15
0
2.5V
Differential Channel 5+
18
LVDS_A5_N K16
0
2.5V
Differential Channel 5-
For the V2.0 development board, J13 needs to be set as 2.5V when
LVDS is used.
3.8
SD Card
3.8.1
Introduction
The SD card slot on the board is the push-push type with eight
contacts. It offers the detection of the card insertion. The connection
diagram is shown as follows.
Figure 3-8 Connection Diagram of SD Card
SD Card
Socket
SD_D0
SD_CD/D3
SD_D1
SD_CMD
SD_D2
SD_CLK
SD_SWITCH
3.8.2
Pinout
Table 4-3 SD Card Pinout
Signal Name FPGA Pin No. BANK
I/O
Description
SD_D0
M8
3
3.3V
Data bits 0
SD_D1
N8
3
3.3V
Data bits 1
SD_D2
L9
3
3.3V
Data bits 2
SD_CD/D3
N9
3
3.3V
Card detection/Data bits 3
SD_CMD
P9
3
3.3V
Commands/Response
SD_CLK
L8
3
3.3V
Clock
SD_SWITCH M11
2
3.3V
Insertion Detection