Receive Idle Timeout (Intercharacter Receive Timeout)
Idle Timeout is the time the host is willing to wait once data is available. Idle Timeout is useful if a time gap between serial bytes defines the end of a packet.
Idle Timeout is definable for a range of 0 to 255 ms in 1 ms increments. If 0, the Ethernet module responds immediately once data is available. To be effective, the Idle Timeout must be shorter than the Receive Timeout. If 255, the Idle Timeout is disabled and the Ethernet module will wait for the Receive Timeout before responding.
Parameter Idle Timeout (in milliseconds) Default Setting Always specified Optional Setting 0 to 2550 = Immediate response with any data255 = Disabled (Wait until Receive Timeout)