I found ZcX which adds the internal chip temperatures behind the processor output:
PROCESSOR 0: 9 engines @ 137 MHz -- MAP: E07E 27 C
PROCESSOR 1: 14 engines @ 198 MHz -- MAP: DFF7 26 C
PROCESSOR 2: 7 engines @ 188 MHz -- MAP: 0BF0 27 C
PROCESSOR 3: 15 engines @ 201 MHz -- MAP: FF7F 29 C
PROCESSOR 4: 13 engines @ 159 MHz -- MAP: E7FE 27 C
PROCESSOR 5: 8 engines @ 168 MHz -- MAP: 0FF0 27 C
PROCESSOR 6: 8 engines @ 179 MHz -- MAP: 0FF0 26 C
PROCESSOR 7: 15 engines @ 179 MHz -- MAP: F7FF 32 C
are these commandline flags?
No, you can use Z-Commands by connecting a terminal program to the serial port.
I tried to use minicom but it never works for me so I used tail -f /dev/ttyUSB0 on one console and echo -n ZcX >/dev/ttyUSB0 on another console to get the result on my linux box.
I found only working 5 commands: ZCX, ZcX, ZLX, ZlX and ZGX. Maybe the're more available...
That's pretty much it.