> Will toggling the GPIO1 affect the performance of μPG2012TK-E2?
Yikes, I would have no idea, and there does not seem to be any timing data for either the Out of Idle indicator or the switch VDD response. It sounds like you just have to give up the Out of Idle indicator.
> Secondly, I believed that CT_BIAS was a good enough indicator..
Yes, I agree for transmit. I see my CT_BIAS assert for ~800us for a packet with 12 byte payload, but I'm in Single Port Mode so the timing might not compare exactly to yours.
If CT_BIAS is asserted for warmup, payload, and warmdown, which it seems to be, you should see it for:
144us, for warmup
(8+n)*32us, for n payload bytes
10us, for warmdown
So for 12 payload bytes (in my case) that is 144+(8+12)*32+10 = 794us.
If you are seeing 500us, that would mean you're sending 2-3 payload bytes?
> Is there any other different setting of the processor that may hold it from powering up the RF section?
It seems the transceiver is running from what you say, so it might just be an electrical problem in the transmit path?
-- Rich