Silicon Laboratories SI2493/57/34/15/04, SI2494/39 manual EM In-Band Commands and Statuses

Models: SI2493/57/34/15/04 SI2494/39

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AN93

Table 86. EM In-Band Commands and Statuses (Continued)

Command–

Hex

 

 

Supported

Supported

Transmit Direction

Receive Direction

in

in Framed

Indicator pair

Code

Transparent

 

 

Submode

 

 

 

 

Submode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detected a non-flag to flag

 

 

<EM><err>

0xB2

Transmit an Abort

transition.

Yes

 

Preceding data are not a valid

 

 

 

 

 

 

 

 

 

frame.

 

 

 

 

 

 

 

 

<EM><under>

0xB4

not applicable

Detected Transmit Data

Yes

Yes

Underrun

 

 

 

 

 

 

 

 

 

 

 

<EM><tover>

0xB5

not applicable

Detected Transmit Data Over-

Yes

Yes

run

 

 

 

 

 

<EM><rover>

0xB6

not applicable

Detected Receive Data Over-

Yes

Yes

run

 

 

 

 

 

 

 

 

 

 

 

<EM><resume

 

Resume after a data

 

 

 

0xB7

underrun or overrun

Not applicable

 

Yes

>

(applicable if

 

 

 

+ESA[C] = 1)

 

 

 

 

 

 

 

 

 

 

 

 

<octnum0><octnum1> speci-

 

 

 

 

 

fies

Yes

Yes

<EM><bnum>

0xB8

not applicable

number of octets in the trans-

 

 

 

mit data

 

 

 

 

 

buffer if +ITF[C] is non-zero2.

 

 

 

 

 

<octnum0><octnum1> speci-

 

 

 

 

 

fies

 

 

 

 

 

number of discarded octets fol-

 

 

<EM><unum>

0xB9

not applicable

lowing

 

 

a data overrun/underrun, after

 

 

 

 

 

the

 

 

 

 

 

<EM><resume> command.

 

 

 

 

 

This is

 

 

 

 

 

applicable if +ESA[C] = 12.

 

 

 

 

 

 

 

 

<EM><eot>

0xBA

Terminate carrier, return to

Loss of carrier detected, return

Yes

Yes

command mode.

to

 

 

 

 

 

command mode

 

 

 

 

Escape to On-Line com-

Confirmation of Escape to On-

Yes

Yes

<EM><ecs>

0xBB

mand

Line

 

 

mode

command mode.

 

 

<EM><rrn>

0xBC

Request rate renegotia-

Indicate rate renegotiation

Yes

Yes

 

 

tion

 

 

 

128

Rev. 1.3

Page 128
Image 128
Silicon Laboratories SI2493/57/34/15/04, SI2494/39 manual EM In-Band Commands and Statuses