Sd Card Interface - Xilinx VC707 User Manual

Chapter 1: VC707 Evaluation Board Features
Figure 1-5
X-Ref Target - Figure 1-5
USB_SMSC_REFCLK_OPTION
R249
C305
DNP
R273
18 pF
0Ω
X1 2
24.000 MHz
R323
30 PPM
1 MΩ
1
C304
R167
18 pF
0Ω
GND
VCC1V8
Default = No jumper
J14
R2
24 MHz
27.4 Ω
USB_SMSC_CLKOUT
USB_SMSC_DIR
USB_SMSC_STP
USB_SMSC_RESET
USB_SMSC_NXT
USB_SMSC_DATA0
USB_SMSC_DATA1
USB_SMSC_DATA2
USB_SMSC_DATA3
USB_SMSC_DATA4
USB_SMSC_DATA5
USB_SMSC_DATA6
USB_SMSC_DATA3
VCC1V8
NC
NC
NC

SD Card Interface

[Figure
The VC707 board includes a secure digital input/output (SDIO) interface to provide
user-logic access to general purpose nonvolatile SDIO memory cards and peripherals. The
SD card slot is designed to support 50 MHz high speed SD cards.
The SDIO signals are connected to I/O bank 13 which has its VCCO set to 1.8V. A TI
TXB0108 8-bit bidirectional voltage-level translator (U31) is used between the FPGA and
the SD card connector (U29).
the VC707 board.
24
Send Feedback
shows the USB 2.0 ULPI Transceiver circuitry.
U8
VCC1V8
USB3320
USB 2.0
ULPI Transceiver
28
VDD18
26
30
REFCLK VDD18
32
VDDIO
22
VBUS
25
XO
VCC5V0
21
VBAT
1
17
CLKOUT
CPEN
31
DIR
29
STP
27
RESETB
2
NXT
3
DATA0
4
DATA1
5
DATA2
6 19
DATA3 DM
7 18
DATA4 DP
9 23
DATA5 ID
10
DATA6
24
RBIAS
13
DATA7
8 REFSEL0
11
20
REFSEL1 VDD33_P
14
REFSEL2
15
SPK_L
33
CTR_GND
16
SPK_R
12
NC
Figure 1-5: USB 2.0 ULPI Transceiver
1-2, callout 5]
Figure 1-6
www.xilinx.com
R222
J45
10.0 kΩ
USB_SMSC_VBUS_SEL
1
2
3
R291
VCC3V3
1.00 kΩ
U17
TPS2051B
R223
Power-Distribution
10 kΩ
Switch
4 3
OC_B
EN
J13
5 1
OUT
IN
2
Default =
GND
No jumper
Power from
USB host (J2)
C179 +
1 μF
C272
150 μF
GND
R323
1 MΩ
C282
2.2 μF
GND
GND
shows the connections of the SD card interface on
J2
Connector,
USB Mini B
L25 Ferrite 220
1
VBUS
C247 C104
0.1 μF 0.1 μF
5
GND
L26 Ferrite 220
GND
USB_SMSC_HEADER_N
2
D_N
USB_SMSC_HEADER_P
3
D_P
USB_SMSC_ID
4
ID
6
SHIELD
7
SHIELD
R2
8
SHIELD
Not
9
Installed
SHIELD
J44
3
+ C326
2
Not
1
Installed
Default =
jumper pins 1 - 2 GND
UG885_c1_05_011813
VC707 Evaluation Board
UG885 (v1.4) May 12, 2014