TFRA08C13-DB AGERE [Agere Systems], TFRA08C13-DB Datasheet - Page 44

• Manufacturer Part Number: TFRA08C13-DB
• Description: TFRA08C13 OCTAL T1/E1 Framer
• Manufacturer: AGERE [Agere Systems]

TFRA08C13 OCTAL T1/E1 Framer
Frame Formats
16-State Signaling
The default signaling mode while in SLC -96 framing is 16-state signaling. SLC -96 16-state signaling is enabled by
setting both the F and G bits in the signaling registers to the 0 state, setting the SLC -96 signaling control register
FRM_PR43 bit 3 and bit 4 to 0, and setting register FRM_PR44 bit 0 to 0. Table 18 shows the state of the transmit-
ted signaling bits to the line as a function of the A-, B-, C-, and D-bit settings in the transmit signaling registers. In
Table 18 below, under Transmit to the Line Signal Bits, A and B are transmitted into one SLC -96 12-frame signaling
superframe, while A’ and B’ are transmitted into the next successive SLC -96 12-frame signaling superframe.
In the line receive direction, this signaling mode functions identically to the preceding transmit path description.
The signaling mapping of this 16-state signaling mode is equivalent to the mapping of the SLC -96 9-state signaling
mode.
Table 18. 16-State Signaling Format
44
SLC -96 Signaling States
State 10
State 11
State 12
State 13
State 14
State 15
State 0
State 1
State 2
State 3
State 4
State 5
State 6
State 7
State 8
State 9
Transmit Signaling Register Settings
(continued)
A
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Transmit to the Line Signal Bits
A
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Preliminary Data Sheet
B
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000
A’
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
B’
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1