BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 196

• Manufacturer Part Number: BT8375
• Description: single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
• Manufacturer: CONEXANT [Conexant Systems, Inc]

3.12 Transmitter Registers
TPATT[1:0]
Table 3-21. Transmit PRBS Test Pattern
3-78
FRAMED
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
PRBS test patterns used by RPATT [addr 041] and TPATT [addr 076] are defined in the ITU
standards O.151 and O.152 to use either inverted or non-inverted data. Bt8370/8375/8376 uses
standard data inversion for the selected PRBS test pattern unless ZLIMIT is enabled, in which
case the test pattern uses non-inverted data (see
ZLIMIT
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
TPATT
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Unframed 2
Unframed 2
Unframed 2
Unframed 2
Unframed 2
Unframed 2
Unframed 2
Unframed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Conexant
11
15
20
23
11
15
20
23
11
15
20
23
11
15
20
23
with 7 zero limit
with 7 zero limit (non std)
with 14 zero limit (QRSS/QRS/QRTS))
with 14 zero limit (non-std)
with 7 zero limit
with 7 zero limit
with 14 zero limit (QRSS/QRS/QRTS)
with 14 zero limit (non-std)
Fully Integrated T1/E1 Framer and Line Interface
Table
Test Pattern
3-21).
Bt8370/8375/8376
Inversion
N8370DSE
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No