cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 193

• Manufacturer Part Number: cx29503
• Description: Cx29503 Broadband Access Multiplexer Data Sheet
• Manufacturer: Mindspeed Technologies

CX29503 Data Sheet
0x76—Transmit Test Pattern Configuration (TPATT)
Unused bits should be written to 0.
TPSTART
FRAMED
ZLIMIT
TPATT[1:0]
Table 8-29. Transmit PRBS Test Pattern Measurements
29503-DSH-002-B
FRAMED
—
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
7
ZLIMIT
Enable Test Pattern Transmission.
PRBS Framed—When set, the PRBS pattern does not overwrite framing bit positions and is
stopped during these bit periods. In T1 mode, the frame bit (every 193
If FRAMED is disabled, the test pattern is transmitted in all time slots.
Enable Zero Limit; 7/14 depending on pattern.
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. Standard data inversion
is used for the selected PRBS test pattern unless ZLIMIT is enabled, in which case the test
pattern uses non-inverted data (see
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
—
6
TPATT
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
—
5
Mindspeed Technologies™
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
TPSTART
Preliminary Information
4
11
15
20
23
11
15
20
23
Table
11
15
20
23
11
15
20
23
with 7 zero limit
with 7 zero limit (nonstandard)
with 14 zero limit (QRSS/QRS/QRTS))
with 14 zero limit (nonstandard)
with 14 zero limit (nonstandard)
with 7 zero limit
with 7 zero limit
with 14 zero limit (QRSS/QRS/QRTS)
Test Pattern Measurements
8-29).
FRAMED
3
ZLIMIT
2
TPATT[1]
rd
bit) is not overwritten.
1
Register Description
Inversion
TPATT[0]
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
0
8
-
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