TB-FMCH-HDMI4K Hardware User Manual
22
Rev.2.04
Table 8-4 HDMI Sink Connector (J2)
Pin #
Schematic Signal Name
Name
Description
1
RX_TMDS_D2_P
TMDS_DATA2_P
TMDS receive data 2+
2
GND
TMDS_SHLD2
TMDS receive data 2 shield
3
RX_TMDS_D2_N
TMDS_DATA2_N
TMDS receive data 2-
4
RX_TMDS_D1_P
TMDS_DATA1_P
TMDS receive data 1+
5
GND
TMDS_SHLD1
TMDS receive data 1 shield
6
RX_TMDS_D1_N
TMDS_DATA1_P
TMDS receive data 1-
7
RX_TMDS_D0_P
TMDS_DATA0_P
TMDS receive data 0+
8
GND
TMDS_SHLD0
TMDS receive data 0 shield
9
RX_TMDS_D0_N
TMDS_DATA0_N
TMDS receive data 0-
10
CLK_RX_TMDS_P
TMDS_CLK_P
TMDS receive clock+
11
GND
TMDS_CLK_SHLD
TMDS receive clock shield
12
CLK_RX_TMDS_N
TMDS_CLK_N
TMDS receive clock-
13
CEC_SINK
CEC
CEC signal
14
Not connected
RSVD/HEC_DATA_N
Reserved/HEC-
15
CLK_I2C_RX_SCL
DDC_SCL
DDC serial clock
16
I2C_RX_SDA_OD
DDC_SDA
DDC serial data
17
GND
DDC/CEC GND
DDC/CEC ground
18
VCC_5V0_RX
DDC_5V
+5V power supply
19
HPD_OUT
HOTPLUG_DET/HEC_DATA_P Hot-plug detection/HEC+
The receiver has an EEPROM (ST Microelectronics M24C64-WDW6TP), which is used to store EDID
data. The EDID EEPROM is accessed on the same I2C bus that is used for control of the SN65DP159
and the Si5324 at address 0b1010000x.
Note:
At factory default settings, the EDID EEPROM stores temporary data to enable output of image
data from an image output device. The ID used in the data is a dummy ID for evaluation
purposes. Do not use it for actual products.
9. I2C Busses
9.1. FMC I2C EEPROM
A 2kbit I2C EEPROM (M24C02) is provided for FMC identification, as described in section 5.5 of
ANSI/VITA 57.1. It is at I2C address 0b1010000x and is connected to the FMC dedicated I2C pins at
J3-C30 (SCL) and J3-C31 (SDA). The pull-up resistors to 3V3_AUX are not populated (R205 and R206)
since the pull-ups should be provided on the main board. The EEPROM is permanently enabled for
writing.
The FMC identification EEPROM for the extender card is connected to J3-D14 (LA09_P) for SCL and
J3-D15 (LA09_N) for SDA. These signals are connected to J8-C30 (SCL) and J8-C31 (SDA) via a
PCA9517 I2C bus repeater.
The FMC identification EEPROM is programmed at the factory to enable automated identification,
