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(-)stlstty.8 Mon Sep 3 08:43:05 2001 (-3 / +3 lines)
Lines 92-104 Link Here
92 
.It Ar maprts (\-maprts)
 92 
.It Ar maprts (\-maprts)
93 
Maps the functionality normally associated with the DTR pin to
 93 
Maps the functionality normally associated with the DTR pin to
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action on the RTS pin instead.
 94 
action on the RTS pin instead.
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So in other words the RTS pin will now act as if it where the DTR pin.
 95 
So in other words the RTS pin will now act as if it were the DTR pin.
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This is useful for boards that have ports that do not have full
 96 
This is useful for boards that have ports that do not have full
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modem signaling on their connector (eg ONboard 16).
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modem signaling on their connector (eg ONboard 16).
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.It Ar mapcts (\-mapcts)
 98 
.It Ar mapcts (\-mapcts)
99 
Maps the functionality normally associated with the DCD pin to
 99 
Maps the functionality normally associated with the DCD pin to
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be actioned on the CTS pin.
 100 
be actioned on the CTS pin.
101 
So in other words the CTS pin will now act as if it was the DCD pin.
 101 
So in other words the CTS pin will now act as if it were the DCD pin.
102 
This is useful for boards that have ports that do not have full
 102 
This is useful for boards that have ports that do not have full
103 
modem signaling on their connector (eg ONboard 16).
 103 
modem signaling on their connector (eg ONboard 16).
104 
.It Ar rtslock (\-rtslock)
 104 
.It Ar rtslock (\-rtslock)
Lines 151-157 Link Here
151 
By default the UART received FIFO is programmed to a reasonably
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By default the UART received FIFO is programmed to a reasonably
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high level, to minimize CPU overhead.
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high level, to minimize CPU overhead.
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Some third party serial devices do not respond quickly to flow
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Some third party serial devices do not respond quickly to flow
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control signals (hardware of software) and this may cause the
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control signals (hardware or software) and this may cause the
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UART's received FIFO to over-run - thus losing data.
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UART's received FIFO to over-run - thus losing data.
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Turning this switch on disables use of the received FIFO.
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Turning this switch on disables use of the received FIFO.
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.El
 157 
.El

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