Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 128)

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128 Rev. 1.3
<EM><err> 0xB2 Transmit an Abort
Detected a non-flag to flag
transition.
Preceding data are not a valid
frame.
Yes
<EM><under> 0xB4 not applicable
Detected Transmit Data
Underrun
Yes Yes
<EM><tover> 0xB5 not applicable
Detected Transmit Data Over-
run
Yes Yes
<EM><rover> 0xB6 not applicable
Detected Receive Data Over-
run
Yes Yes
<EM><resume
>
0xB7
Resume after a data
underrun or overrun
(applicable if
+ESA[C] = 1)
Not applicable Yes
<EM><bnum> 0xB8 not applicable
<octnum0><octnum1> speci-
fies
number of octets in the trans-
mit data
buffer if +ITF[C] is non-zero2.
Yes Yes
<EM><unum> 0xB9 not applicable
<octnum0><octnum1> speci-
fies
number of discarded octets fol-
lowing
a data overrun/underrun, after
the
<EM><resume> command.
This is
applicable if +ESA[C] = 12.
<EM><eot> 0xBA
Terminate carrier, return to
command mode.
Loss of carrier detected, return
to
command mode
Yes Yes
<EM><ecs> 0xBB
Escape to On-Line com-
mand
mode Confirmation of Escape to On-
Line
command mode.
Yes Yes
<EM><rrn> 0xBC
Request rate renegotia-
tion
Indicate rate renegotiation Yes Yes
Table 86. EM In-Band Commands and Statuses (Continued)
Command–
Indicator pair
Hex
Code
Transmit Direction Receive Direction
Supported
in
Transparent
Submode
Supported
in Framed
Submode