Can Microchip Configurable Logic Block (CLB) match UART address?

[nunojpg]

Hey!

I want to implement 1-Wire like slaves with a uC and looking for a option to stay sleeping while the master doesn't send the address.
Other functions like Search and Alert don't need to be implemented on sleep.
 
For this case I wonder if Microchip CLB would be able to match a preamble and address, even if 8 bits.

The specs are:
1x CLB - Interconnected fabric containing 32 Basic Logic Elements (BLE) / each BLE contains one 16-input Look-Up Table (LUT) and one flip-flop
4x CLC - Configurable Logic Cells - Integrated combinational and sequential logic

I have very limited experience in configurable circuits, so I wouldn't be surprised if the answer is trivial.

Thanks

[mikeselectricstuff]

You'd need to keep the clock running so is there much benefit to being asleep?
What sort of baudrate are you looking at? - maybe you could decode in software & wake on a leasing edge - the RC osc would probably startfast enough for lower baudrates.

[voltsandjolts]

DS28E18 interface is powered from the 1-wire bus (saves your slave power) but you would need to wakeup mcu fairly quick, few microseconds.