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KC705 Evaluation Board
23
UG810 (v1.3) May 10, 2013
Feature Descriptions
Clock Generation
There are five clock sources available for the FPGA fabric on the KC705 board (refer to
X-Ref Target - Figure 1-9
Figure 1-9:
JTAG Circuit
UG810_c1_08_012012
JTAG_TDI
FMC_TDI_BUF
FPGA_TMS_BUF
FPGA_TDO
FPGA_TCK_BUF
FMC_LPC_TCK_BUF
FMC_HPC_TDO
FMC_LPC_TDO
FMC_TMS_BUF
LPC_PRSNT_M2C_B
HPC_PRSNT_M2C_B
JTAG_TMS
JTAG_TCK
JTAG_TDO
FMC_LPC_TMS_BUF
FMC_HPC_TCK_BUF
FMC_HPC_PRSNT_M2C_B
FMC_LPC_PRSNT_M2C_B
FMC HPC
Connector
TDI
TDO
J22
TMS
TCK
PRSNT_L
VCC3V3
FMC LPC
Connector
TDI
TDO
J2
TMS
TCK
PRSNT_L
Kintex-7
FPGA
TDI
TDO
U1
TMS
TCK
Digilent
USB-JTAG
Module
TMS
TDI
SN74AVC1T45
Voltage
Translator
U102
SN74AVC2T45
Voltage
Translator
U69
SN74LV541A
Voltage
Translator
U5
R381 15
Ω
U59
R382 15
Ω
R380 15
Ω
TCK
TDO
TMS
TDI
J60
TCK
TDO
JTAG
Header
VCC2V5
VCC2V5
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
U76
U77
Table 1-8:
KC705 Board Clock Sources
Clock Name
Reference
Description
System Clock
U6
SiT9102 2.5V LVDS 200 MHz Fixed Frequency
Oscillator (Si Time). See
User Clock
U45
Si570 3.3V LVDS I
2
C Programmable Oscillator
(Silicon Labs). Default power-on frequency 156.250
MHz. See
Programmable User Clock Source, page 25
.