Sd Card Interface - Xilinx ZC702 User Manual

Figure 1-7 shows the USB 2.0 ULPI Transceiver circuitry. Note that the shield for the USB
Mini-B connector (J1) can be tied to GND by a jumper on header J36 pins 1–2 (default). The
USB shield can optionally be connected through a capacitor to GND by installing a
capacitor (body size 0402) at location C202 and jumping pins 2-3 on header J36.
X-Ref Target - Figure 1-7
2 PLACES
VCCMIO
C53
C54
C56
1 1 1
0.1UF
25V 2 2 2
3 PLACES
GND
USB3320_QFN32
USB_CLKOUT 1
8 CLKOUT_1
USB_NXT 2
8 NXT_2
USB_DATA0 3
8 DATA0_3
USB_DATA1 4
8 DATA1_4
USB_DATA2 5
8 DATA2_5
USB_DATA3 6
8 DATA3_6
USB_DATA4 7
8 DATA4_7
8
REFSEL0_8
U9
VCCMIO

SD Card Interface

[Figure 1-2, callout 5]
The ZC702 board includes a secure digital input/output (SDIO) interface to provide
user-logic access to general purpose non-volatile SDIO memory cards and peripherals.
Information for the SD I/O card specification can be found at the SanDisk Corporation
[Ref 3] or SD Association
The SDIO signals are connected to XC7Z020 AP SoC PS bank 501 which has its VCCMIO set
to 1.8V. A TXB02612 SDIO port expander with voltage-level translation (U61) is used
between the XC7Z020 AP SoC and the SD card connector (J64).
ZC702 Board User Guide
UG850 (v1.2) April 4, 2013
X2
1 2
C334 C335
1 1
24.000MHZ
18PF 18PF
R295
1
50V 2 2 50V
1.0M NPO NPO
1/10W
2
5%
GND GND
24 VCC5V0
RBIAS_23
23 USB_ID
ID_23 27
GND
22
VBUS_22
21
VBAT_21
20 USB_VDD33
VDD33_P 27 1
19 USB_D_N
DM_19 27 2
C137
18 USB_D_P 1
DP_18 27
2.2UF
17 2 6.3V
CPEN33_17
GND
33
GND
CTR_GND_33
USB3320_QFN32
R185
1 1
GND R249
10.0K
1.00K
1/10W
1/16W
2 2
J33
1-2 = DEVICE MODE
2-3 = HOST OR OTG MODE
VCC3V3
R280
1
USB HOST POWER
261
1/10W
MIC2025_SOP8
2
DS5
1
EN OUT2
2
2 1
FLG IN
3
GND OUT1
NC 4
LED-RED-SMT
NC1 NC2
U13 SOP127P500X600_8
GND
Figure 1-7: USB 2.0 ULPI Transceiver
[Ref 4] websites.
www.xilinx.com
USB_VBUS_SEL
L10
FERRITE-220
1
C270
1
5.6UF
10V 2
1
FERRITE-220
L11
GND
C414 C303
1
1
1UF 120UF
2 16V 20V
X5R 2 TANT
CVBUS Select:
1-2: OTG Mode
GND 2-3: Host Mode
GND
C413
0.1UF
25V
USB_VBUS_SEL
J7
1
ON = HOST OR OTG MODE
2 OFF = DEVICE MODE
VCC5V0
8
7
6
C58 1 C293
5 NC 1
0.1UF 150UF
2 25V 2 10V
TANT
GND GND
Feature Descriptions
ZX62D_AB_5P8
1
VBUS
2
2
USB_D_N
27 D_N
C57
1
3
USB_D_P
0.1UF 27 D_P
2 25V
4
ID
2 5
GND
J1
J34
1
1
C202
2 USB_ID
27
GND 2
DNP
3 USB_VDD33 J36
27
1-2 = A/B CABLE DETECT GND
2-3 = ID NOT USED
UG850_c1_07_030513
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