CX28394/28395/28398
3.0 Registers
Quad/x16/Octal—T1/E1/J1 Framers
3.9 Receiver Registers
047—Alarm 1 Status (ALM1)
ALM1 reports current status of receive alarms. Any change in the current status activates the corresponding
interrupt status bit [ISR7; addr 004].
7
6
5
4
3
2
1
0
RMYEL
RYEL
—
RAIS
RALOS
RLOS
RLOF
SIGFRZ
RMYEL
Receive Multiframe Yellow Alarm—Real-time or integrated RMYEL status depends on the
selected framer mode and the yellow alarm integration mode [YEL_INTEG; addr 045]. Refer
to Table 2-1, Receive Framer Modes, for mode summary and Table 3-13 for set/clear criteria.
0 = no alarm
1 = receive multiframe yellow alarm
Table 3-14. Receive Yellow Alarm
YEL_INTEG = 0
YEL_INTEG = 1
Receive Framer
Mode
RYEL
RMYEL
RYEL
RMYEL
FT/SF/SLC
JYEL
T1DM
ESF
YB2
YJ
—
—
YB2_INT
YJ_INT
—
—
Y24
YB2
Y0
—
Y24_INT
YB2_INT
Y0_INT
Y0_INT
—
YF
—
YF_INT
—
FAS
CAS
Y0
Y16
Y16_INT
NOTE(S): Last known frame alignment is used to locate and monitor yellow alarms.
Therefore, RYEL and RMYEL will not accurately report alarms during receive loss of frame
alignment [RLOF; addr 047].
RYEL
Receive Yellow Alarm—Real-time or integrated RYEL status depends on selected receive
framer mode and yellow alarm integration mode [YEL_INTEG; addr 045]. Refer to
Table 3-14 for mode summary and Table 3-13 for set/clear criteria.
0 = no alarm
1 = receive Yellow Alarm
100054E
Conexant
3-45
CONEXANT [ CONEXANT SYSTEMS, INC ]
