cx28394 Conexant Systems, Inc., cx28394 Datasheet - Page 186

• Manufacturer Part Number: cx28394
• Description: Quad/x16/octal-t1/e1/j1 Framers
• Manufacturer: Conexant Systems, Inc.

3.0 Registers
3.12 Transmitter Registers
075—Transmit Alarm Signal Configuration (TALM)
Unused bits are reserved and should be written to 0.
AISCLK
AUTO_MYEL/TMYEL
AUTO_YEL /TYEL
3-64
—
7
Enable Automatic ACKI Switching—When AISCLK is active and the clock monitor reports a
loss of transmit clock [TLOC; addr 048], the transmitter clock is automatically switched to
reference TIACKI or EIACKI instead of TCKI. The transmitter is also forced to send AIS (all
ones) data. If both AISCLK and TAIS [addr 075] are active, AIS is transmitted using TIACKI
or EIACKI clock regardless of the clock monitor status. AISCLK should be set only if the
system supplies an alternate line rate clock on TIACKI for TI or EIACKI for EI applications.
Manual/Automatic Transmit Multiframe Yellow Alarm—Manual mode sends alarm for as
long as TMYEL is active. Automatic mode sends alarm for the duration of a receive loss of
multiframe alignment [SRED; addr 049].
Manual/Automatic Transmit Yellow Alarm—Manual mode sends the alarm for as long as
TYEL is active and yellow alarm insertion [INS_YEL; addr 072] is enabled. Automatic mode
sends yellow alarm for the duration of a receive loss of frame alignment [FRED; addr 049].
AISCLK
6
NOTE(S):
TDL2, or TSLIP buffer to transmit Y-bit output in time slot 24.
NOTE(S):
TDL2 or TSLIP buffer to transmit Y-bit output in time slot 24.
INS_MYEL
TAIS
INS_YEL
0
0
0
0
0
0
1
1
0
0
0
1
1
1
0
1
1
1
To transmit T1DM yellow alarm (Y24), the processor must program TDL1,
To transmit T1DM yellow alarm (Y24), processor must program TDL1,
AUTO_AIS
AUTO_MYEL
X
X
X
0
0
1
1
1
0
1
5
Inputs
TMYEL
TYEL
X
X
0
0
1
0
0
1
AISCLK
AUTO_YEL
AUTO_MYEL
AUTO_YEL
X
X
1
1
0
0
1
0
0
1
4
Conexant
X
X
0
1
X
X
0
1
AUTO_AIS
Supplied by TPCMI
Inactive
Follows FRED status
Active
RLOS
3
Supplied by TPCMI
Inactive
Follows SRED status
Active
X
X
X
X
X
X
0
0
1
1
Transmit Multiframe Yellow
Transmit Yellow Alarm
Status
TMYEL
TLOC
2
X
X
X
Quad/x16/Octal—T1/E1/J1 Framers
0
0
1
0
1
1
0
CX28394/28395/28398
TCKI
TCKI
TI/EIACKI
TCKI
TCKI
TCKI
TI/EIACKI
TCKI
TCKI
TI/E1ACKI
CLOCK
TYEL
1
Transmit
Normal
Normal
AIS
Normal
Normal
AIS
AIS
AIS
Normal
AIS
100054E
TAIS
DATA
0