Handshaking sequence between EVSE and EV

Does anyone know the maximum latency between an EV asking for charging (by pulling CP to 6V or 3V) and the EVSE supplying energy (before the CP goes oscillatory)? The SAE standard does not seem to cover that, but rather focuses on the 3-second max latency between the CP going active (oscillating at 1KHZ) and the EVSE supplying energy to the EV.