Trb-Net Onewire interface

This entity provides a very simple 1-wire master to read out the id of a 1-wire device. It does not support busses with more than one device.

The entity provides one tristate port to connect to the one wire bus. The data is output on a data port along with an address (counting from 1 to 4, according to TrbNetAddresses) and a write signal. This output port will be connected to TrbNetRegIO.

The temperature of the sensor is also read out and provided on a 12 bit port in the sensors native data format (1/16th degree celsius in case of an DS18B20)

-- JanMichel - 03 Apr 2008