User Manual

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Figure 44 HDMI Framer Processor Interface

6.10.4 HDMI Control Processor Interface

In order to use the

TDA19988

, the processor needs to setup the device. This is done via

the I2C interface between the processor and the

TDA19988

. There are two signals on the

TDA19988

that could be used to set the address of the

TDA19988

. In this design they are

both tied low. The I2C interface supports both 400kHz and 100KhZ operation.

Table 9

shows the I2C address.

Table 9 TDA19988 I2C Address

6.10.5 Interrupt Signal

There is a HDMI_INT signal that connects from the TDA19988 to the processor. This

signal can be used to alert the processor in a state change on the HDMI interface.