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2.3 Specifications
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85%
25%
Hi
Low
RTS
Amount of input
buffer used
Buffer empty
Handshake
(1) Controls when receiving
When the receiving buffer is more than 85% full, to indicate to the controller
that the empty buffer capacity is low (RTS is set to Low).
Processing of data in the buffer continues, and when the receiving buffer is
less than 25 % full, to indicate to the controller that there is ample buffer
capacity (RTS is set to Hi)
(2) Controls when transmitting
When CTS is Low, transmission is suspended; it is Hi transmission resumes.
