User manual

TB-7Z-020-EMC Hardware User Manual
19
Rev.1.03
7.4. I2C BUS
The TB-7Z-020-EMC board implements a single I2C port on the Zynq AP SoC PS.
The I2C Bus topology is shown in Figure 7-7.
ZYNQ
XC7Z020-1CLG484
PS Bank501
I2C_SCL/SDA_LS
I2C
Level Shifter
PCA9306
(U9)
VCC_1P8V VCC_5P0V
DDC_SCL/SDA
microHDMI
Connector (DVI)
046765-1001
(CN3)
I2C
Level Shifter
PCA9306
(U19)
VCC_1P8V VCC_3P3V
I2C_SCL/SDA
DVI
Transmitter
TFP410PAP
(U8)
FMC LPC CC
ASP-134603-01
(CN5)
RTC module
RX-8564LC
(U10)
PLL
5V49EE504NLGI
(U18)
No
Mount
Figure 7-7 I2C Bus Topology
Table 7-4 I2C Address Map
No.
Device
Write
Address
Read
Address
Note
1
microHDMI
Connector
Custom
Custom
Interface is DVI
DDC_SCL, DDC_SDA
2
TFP410PAP
(DVI PHY)
01110000
01110001
It is not connected.
R44 and R45 need to mount 0 ohm register.
3
FMC LPC CC
(CN5)
Custom
Custom
It is related FMC mezzanine board.
Please refer to section 7.16.2
4
RX-8564LC
(RTC)
1010001
1010001
Please refer to section 7.10 and datasheet
5
5V49EE504NLGI
(PLL)
1101010
1101010
Please refer to section 7.3 and datasheet