Carrier Loss Message Format - Intel iSBC 546 Hardware Reference Manual

FIRMWARE
iSBC Controller to Host CPU Messages
B.3.2.2.S CARRIER LOSS. The controllers send the host CPU this
message when an ON to OFF transition is detected on the Carrier
Detect Modem line.
Figure B-31 shows the Carrier Loss message format.
Message Format
Line Number
Hesponse
o
05H
1
Line Number
2
Reserved
1511-____
R_e_s_e_r_v_e_d _ _ _
----I
NOTE
Reserved space
should be set to
00 (H) •
The serial channel on which the carrier was
lost.
None
Figure B-3l. Carrier Loss Message Format
B-46