cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 172

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

Register Description
0x41—Receive Test Pattern Configuration (RPATT)
RESEED
BSTART
FRAMED
Table 8-14. Receive PRBS Test Pattern Measurements
ZLIMIT
8-42
FRAMED
—
7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Reseed PRBS Sync Detector (auto-clear)—If BSTART is active-high, writing a 1 to RESEED
forces the PRBS sync detector to reseed and search for test pattern sync [PSYNC; addr: 00B].
The reseed and search algorithm remains active until test pattern sync is found.
Enable PRBS Detector and Start Counting PRBS Bit Errors—BERR [addr: 058, 059]
counting is enabled when BSTART is active-high, and pattern sync is found
[PSYNC = 1; addr: 00B]. Otherwise, BERR counter holds its present value until cleared by a
processor read.
PRBS Framed—When set, PRBS test pattern bits are not checked during F-bit locations in T1
mode or TS0 locations in E1 mode. Otherwise, test patterns are checked in all T1/E1 bit
locations. FRAMED, ZLIMIT, and RPATT establish the test pattern measurement type as
listed in
PRBS Zero Limit—Determines the number of consecutive 0s allowed within the selected
PRBS test pattern. See
ZLIMIT
—
6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0 = no effect
1 = reseed and search for test pattern sync
0 = PRBS detector disabled and BERR stops counting
1 = enable PRBS detector and BERR counter
Table
RESEED
8-14.
RPATT
5
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Mindspeed Technologies™
Table 8-14
Unchannelized 2
Unchannelized 2
Unchannelized 2
Unchannelized 2
Unchannelized 2
Unchannelized 2
Unchannelized 2
Unchannelized 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
Framed 2
BSTART
Preliminary Information
4
for test pattern measurement options.
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)
Test Pattern Measurements
FRAMED
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)
3
ZLIMIT
2
RPATT[1]
1
CX29503 Data Sheet
29503-DSH-002-B
RPATT[0]
Inversion
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
0