Is there a more recent TMCL Reference doc?

Another example. I want to access the TCOOLTHRS by TMCL. 

How can I find it's pseudo register address?

Can it only be accessed with a direct register access?

WMC $14, 0, $0000003C, 1 // write TCOOLTHRS

Another example. I want to access the TCOOLTHRS by TMCL. 

How can I find it's pseudo register address?

Can it only be accessed with a direct register access?

WMC $14, 0, $0000003C, 1 // write TCOOLTHRS