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VC709 Evaluation Board
UG887 (v1.2.1) March 11, 2014
Chapter 1:
VC709 Evaluation Board Features
User applications that communicate with devices on one of the downstream I
2
C buses
must first set up a path to the desired bus through the U52 bus switch at I
2
C address
0x74
(
0b1110100
lists the address for each bus. The secondary (SFP+ access) bus
switch U14 is at I²C address
0x75
(
0b1110101
) and the SFP+ modules all have the same
address
0x50
(
0b1010000
).
4.
Information about the PCA9546A and PCA9548A is available on the
website.
X-Ref Target - Figure 1-17
Figure 1-17:
I
2
C Bus Topology
Table 1-17:
I
2
C Bus Addresses
I
2
C Bus
I
2
C Switch
Position
I
2
C Address
PCA9548
NA
0b1110100
USER_CLK_SDL/SCL
0
0b1011101
FMC1_HPC_IIC_SDA/SCL
1
0bxxxxx00
NOT USED
2
NOT USED
EEPROM_IIC_SDA/SCL
3
0b1010100
PCA9546 (SFP1–SFP4)
4
0b1110101
NOT USED
5
NOT USED
IIC_SDA/SCL_DDR3 J1
IIC_SDA/SCL_DDR3 J3
6
0b1010001, 0b0011001
0b1010010, 0b0011010
Si5324_SDA/SCL
7
0b1101000
Notes:
1. Use the PCA9548 (U52) at
I
2
C
address
0x74
(
0b01110100
) to set up the path to these buses.
PCA954
8
12C 1-to-
8
B
us
S
witch
CH7 -
S
I5
3
24_
S
DA/
S
CL
0x74
0x75
U52
IIC_
S
DA/
S
CL_MAIN
S
FP_IIC_
S
DA/
S
CL
CH6 - IIC_
S
DA/
S
CL_DDR
3
CH5 - Not
us
ed
CH4 -
S
FP_IIC_
S
DA/
S
CL
CH
3
- EEPROM_IIC_
S
DA/
S
CL
CH2 - Not
us
ed
CH1 - FMC1_HPC_IIC_
S
DA/
S
CL
CH0 - U
S
ER_CLK_
S
DL/
S
CL
FPGA
B
a
nk 15
(2.5V)
U1
PCA9546
12C 1-to-4
B
us
S
witch
U14
CH0 -
S
FP1_IIC_
S
DA/
S
CL
CH1 -
S
FP2_IIC_
S
DA/
S
CL
CH2 -
S
FP
3
_IIC_
S
DA/
S
CL
CH
3
-
S
FP4_IIC_
S
DA/
S
CL
UG
88
7_c1_16_090612
Содержание VC709
Страница 1: ...VC709 Evaluation Board for the Virtex 7 FPGA User Guide UG887 v1 2 1 March 11 2014...
Страница 66: ...66 www xilinx com VC709 Evaluation Board UG887 v1 2 1 March 11 2014 Chapter 1 VC709 Evaluation Board Features...
Страница 70: ...70 www xilinx com VC709 Evaluation Board UG887 v1 2 1 March 11 2014 Appendix B VITA 57 1 FMC Connector Pinouts...
Страница 92: ...92 www xilinx com VC709 Evaluation Board UG887 v1 2 1 March 11 2014 Appendix C Master XDC Listing...
Страница 96: ...96 www xilinx com VC709 Evaluation Board UG887 v1 2 1 March 11 2014 Appendix E Board Specifications...