This new release is a rewrite of the original firmware that removes the reliance on both interrupts and the SPI module in order to provide much closer emulation of the TMS6100 to the original chip.
The release adds support for PHROM bank-numbers and stacked PHROMs. Multiple emulator boards or a combination of real PHROM chips and emulators can now be combined for up to 16 PHROM banks of voice data (just like the original chips). This provides the ability to use the US and Acorn PHROMs at the same time on the BBC Micro as well as much better support for other computers and systems that use the TMS6100.
A hex file containing the pre-compiled version of the release is attached.