
ZC702 Board User Guide
www.xilinx.com
25
UG850 (v1.2) April 4, 2013
Feature Descriptions
Programmable Logic JTAG Programming Options
[
Figure 1-2
, callout
6
]
The ZC702 board JTAG chain is shown in
Figure 1-9
.
Programmable Logic JTAG Select Switch, JTAG Cable Connector
[
Figure 1-2
, callout
23
]
The JTAG chain can be programmed by three different methods made available via a 3-to-1
analog switch (U75, U76, and U77) controlled by a 2-position DIP switch at SW10.
Figure 1-10
shows the JTAG analog switches and DIP switch SW10.
X-Ref Target - Figure 1-9
Figure 1-9:
JTAG Chain Block Diagram
UG850_c1_09_030513
2.5V
3.3V
FMC LPC
Connector
TDI TDO
J3
U1
Zynq-7000
XC7Z020
AP SoC
TDI
TDO
SN74AVC1T45
Voltage
Translator
TDI
TDO
U39
FMC LPC
Connector
TDI TDO
J4
SPST Bus Switch
U25
N.C.
N.C.
SPST Bus Switch
U26
SN74AVC1T45
Voltage
Translator
TDO
TDI
U38
JTAG
Module
TDO
TDI
U23
JTAG
Header
TDO
TDI
J2
JTAG
Header
TDO
TDI
J58
3:1
Analog
Switch
U75
U76
U77