Hi,
We are designing a multi-channel audio system using the AM1705 processor. There will be multiple AM1705 processors on the same TDM bus. In the manual section 23.2.3.4 and 23.2.4.2.2.1 it talks about having multiple CPUs on the same TDM bus and configuring the device to be active or inactive during a TDM slot. So this would work with the devices directly connected.
Due to the construction of our system we are using MLVDS at the physical layer to interconnect the CPUs, for noise immunity and to lower emissions, etc.
My question is; is it possible to get the device to generate an enable output which corresponds with the TDM slot transmission so that the transceiver direction is correctly selected. There is one way I can see, by using a second serialiser loaded with the same slot information and all '0's or '1's and allowing the high impedance state of that serialiser to change the state of the first. This is a little worrying as the high impedance state will have a slower transition time that an actively driven output. So I am hoping for a more direct mechanism.
Regards and thanks in advance.