====== UIC firmware RE notes ======

kind of a general dump for anything pertaining to the UIC firmware

===== RAM =====

^ address ^ desc. ^
| 01a5    | FIFO for ?? |
| 01ab    | FIFO for ?? |
| 01b1    | FIFO for general commands |
| 01b7    | copy of EEPROM config data (1100 and up) |

===== General commands =====

general commands are sent through the FIFO at 01b1, to be executed in the main loop

(these are internal commands, no relation to the SPI command sets)

^ command ^ xrefs ^ desc. ^
| 0       | d904 d91e | nop |
| 1       | d95b  | backlight on |
| 2       | d967  | backlight off |
| 3       | eba0  | commit config writes to EEPROM |
| 5       | d8dd  | enter firmware upload mode |
| 6       | d913 f664 | set UIC state |
| 7       | d452  | ?? |
| 8       | d465  | ?? |