Sd Card Interface - Xilinx ZC706 User Manual

Figure 1-7 shows the USB 2.0 ULPI transceiver circuitry. Note that the shield for the USB
Micro-B connector (J2) can be tied to GND by a jumper on header J51 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 C335 and jumping pins 2-3 on header J51.
X-Ref Target - Figure 1-7
2 PLACES
VCCMIO
C70
C71
C74
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
DATA1_4
8
USB_DATA2 5
8 DATA2_5
USB_DATA3 6
8 DATA3_6
USB_DATA4 7
8 DATA4_7
8
REFSEL0_8
U12
VCCP1V8

SD Card Interface

[Figure 1-2, callout 5]
The ZC706 evaluation board includes a secure digital input/output (SDIO) interface to
provide user-logic access to general purpose nonvolatile SDIO memory cards and
peripherals. Information for the SD I/O card specification can be found at the SanDisk and
SD card websites
The SDIO signals are connected to XC7Z045 AP SoC PS bank 501 which has its VCCMIO set
to 1.8V. A MAX13035E high-speed logic-level translator (U11) is used between XC7Z045 AP
SoC 1.8V PS bank 501 and the 3.3V SD card connector (J30).
ZC706 Evaluation Board User Guide
UG954 (v1.5) September 10, 2015
X2
1 2
C496 C497
1 1
24.000MHZ
18PF 18PF
R403
1 50V 2 2 50V
1.0M NPO NPO
1/10W
5% 2
GND GND
24
RBIAS_23
23 USB_ID
ID_23 31
GND
22
VBUS_22
21
VBAT_21
20 USB_VDD33
VDD33_P 27
19 USB_D_N
DM_19 31
C209
18 USB_D_P 1
DP_18 31
2.2UF
17 2 6.3V
CPEN33_17
33 GND
CTR_GND_33
USB3320_QFN32
R267
1 1
GND R359
10.0K
1.00K
1/10W
1/16W
2 2
J48
1-2 = DEVICE MODE
2-3 = HOST OR OTG MODE
VCC3V3
R389
1
USB HOST POWER
261
1/10W
MIC2025_SOP8
2 DS25
1
EN
2 1 2
FLG
3
GND
NC 4
LED-RED-SMT
NC1
U22
GND
Figure 1-7: USB 2.0 ULPI Transceiver
[Ref 18], [Ref 19].
www.xilinx.com
USB_VBUS_SEL
C447
1
5.6UF
10V 2
GND
VCC5V0 C380 C484
1
1
1UF 120UF
2 16V 20V
X5R 2 TANT
CVBUS Select:
1-2: OTG Mode
GND 2-3: Host Mode
GND
C72
1
0.1UF
2 25V
GND
USB_VBUS_SEL
J10
1
ON = HOST OR OTG MODE
2 OFF = DEVICE MODE
VCC5V0
8
OUT2
7
IN
6
OUT1
C76 1 C469
5 NC 1
NC2
0.1UF 150UF
SOP127P500X600_8 2 25V 2 10V
TANT
GND GND
Feature Descriptions
L11
FERRITE-220
ZX62D_AB_5P8
1
VBUS
1 2
2
USB_D_N
27 D_N
C75
1
3
USB_D_P
0.1UF 27 D_P
2 25V
4
ID
1 2
5
GND
FERRITE-220
J2
L12
J49
1
2 USB_ID
27
GND
3 USB_VDD33
J51
27
1-2 = A/B CABLE DETECT
2-3 = ID NOT USED
UG954_c1_07_041113
Send Feedback
1
C335
2
DNP
GND
29