TFRA08C13-DB AGERE [Agere Systems], TFRA08C13-DB Datasheet - Page 160

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

TFRA08C13 OCTAL T1/E1 Framer
Framer Register Architecture
Signaling Mode Register (FRM_PR44)
This register programs various signaling modes. The default value is 00 (hex).
Table 149. Signaling Mode Register (FRM_PR44) (Y8C)
160
Bit
0
1
2
3
4
5
6
7
TSR-ASM
ASTSAIS
Symbol
STOMP
TCSS
TSIG
MOS
ASM
RSI
Transparent Signaling. A 0 enables signaling information to be inserted into and
extracted from the data stream. The signaling source is either the signaling registers or
the system data (in the associated signaling mode). In DS1 modes, the choice of data or
voice channels assignment for each channel is a function of the programming of the F
and G bits in the transmit signaling registers. A 1 enables data to pass through the
device transparently. All channels are treated as data channels.
Stomp Mode. A 0 allows the received signaling bits to pass through the receive signal-
ing circuit unmodified. In DS1 robbed-bit signaling modes, a 1 enables the receive sig-
naling circuit to replace (in those time slots programmed for signaling) all signaling bits
(in the receive line bit stream) with a 1, after extracting the valid signaling information. In
CEPT time slot 16 signaling modes, a 1 enables the received signaling circuit substitute
of the signaling combination of ABCD = 0000 to ABCD = 1111.
Associated Signaling Mode. A 1 enables the associate signaling mode which config-
ures the CHI to carry both data and its associated signaling information. Enabling this
mode must be in conjunction with the programming of the CHI data rate to 4.096 Mbits/s
or 8.192 Mbit/s. Each channel consists of 16 bits where 8 bits are data and the remaining
8 bits are signaling information.
Receive Signaling Inhibit. A 1 inhibits updating of the receive signaling buffer.
Message-Oriented Signaling. DS1: A 1 enables the channel 24 message-oriented
signaling mode.
TSR-ASM Mode (DS1 Only). In the DS1 mode, setting this bit and FRM_PR44 bit 2
(ASM) to 1 enables the transmit signaling register F and G bits to define the robbed-bit
signaling format while the ABCD bit information is extracted from the CHI interface. The
F and G bits are copied to the receive signaling block and are used to extract the signal-
ing information from the receive line.
Automatic System Transmit Signaling AIS (CEPT Only). A 1 transmits AIS in system
time slot 16 during receive loss of time slot 16 signaling multiframe alignment state.
Transmit CEPT System Signaling Squelch (CEPT Only). AIS is transmitted in time
slot 16 of the transmit system data.
(continued)
Description
Preliminary Data Sheet
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000