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XRT72L13 Datasheet, PDF (143/370 Pages) Exar Corporation – M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC | |||
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PRELIMINARY
M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC XRT72L13
REV. 1.0.6
2.3.2.60 DS2 # 6 Framer Configuration Register
)
DS2 # 6 FRAMER CONFIGURATION REGISTER (ADDRESS = 0X3F)
BIT 7
Unused
R/O
0
BIT 6
ONE AND
ONLY
R/W
0
BIT 5
DS2
MSYNC
Algo
R/W
0
BIT 4
DS2
FSYNC
Algo
R/W
0
BIT 3
DS2
FOOF
Algo
R/W
0
BIT 2
DS2
MOOF
Algo
R/W
0
BIT 1
DS2 MOOF
Disable
BIT 0
DS2
Reframe]
R/W
R/W
0
0
Bit 6 - ONE AND ONLY
Bit 5 - DS2 MSYNC - Algo
This âRead/Writeâ bit-field permits the user to define
the âM-Bit Sync Declarationâ Criteria for Receive DS2
Framer - Channel 6.
Setting this bit-field to â0â configures the Receive
DS2 Framer (for Channel 6) to declare âM-SYNCâ if it
receives 4 consecutive, correct M-bits.
Setting this bit-field to â1â configures the Receive DS2
Framer (for Channel 6) to declare âM-SYNCâ if it re-
ceives 8 consecutive, correct M-bits.
Bit 4 - DS2 FSYNC - Algo
This âRead/Writeâ bit-field permits the user to define
the âF-Bit Sync Declarationâ Criteria for Receive DS2
Framer - Channel 6.
Setting this bit-field to â0â configures the Receive DS2
Framer (for Channel 6) to declare âF-SYNCâ if it re-
ceives 8 consecutive, correct F-bits.
Setting this bit-field to â1â configures the Receive DS2
Framer (for Channel 6) to declare âF-SYNCâ if it re-
ceives 16 consecutive, correct F-bits.
Bit 3 - DS2 FOOF - Algo
This âRead/Writeâ bit-field permits the user to define
the âReceive DS2 Out-of-Frame Declarationâ criteria,
for DS2 Channel 6.
Setting this bit-field to â1â configures the Receive DS2
Framer (for Channel 6) to declare an âOOFâ (Out-of-
Frame) condition when 2 out of the last 5 received F-
bits are errored.
Setting this bit-field to â0â configures the Receive DS2
Framer (for Channel 6) to declare an âOOFâ (Out-of-
Frame) condition when 2 out of the last 4 received F-
bits are errored.
Bit 2 - DS2 MOOF Algo
This âRead/Writeâ bit-field permits the user to define
the âReceive DS2 Out-of-Frame Declarationâ criteria,
for DS2 Channel 6.
Setting this bit-field to â1â configures the Receive DS2
Framer (for Channel 6) to declare an âOOFâ (Out-of-
Frame) condition when at least one M-bit error is de-
tected within 3 out of the last 4 received DS2 frames.
Setting this bit-field to â0â configures the Receive DS2
Framer (for Channel 6) to declare an âOOFâ (Out-of-
Frame) condition when at least one M-bit error is de-
tected within 2 out of the last 4 received DS2 frames.
NOTE: This bit-field is ignored if Bit 1 (within this register is
set to â1â.
Bit 1 - DS2 MOOF Disable
This âRead/Writeâ bit-field permits the user to config-
ure Receive DS2 Framer # 6 to evaluate M-bits as a
part of the âReceive DS2 Out-of Frame Declarationâ
criteria.
Setting this bit-field to â0â configures Receive DS2
Framer # 6 to check for M-bit errors and declare an
OOF condition, per the settings within the âDS2
MOOF Algoâ bit-field (Bit 2, within this register).
Setting this bit-field to â1â configures Receive DS2
Framer # 6 to NOT check for M-bits errors, as a part
of the âReceive DS2 Out-of Frame Declarationâ crite-
ria.
Bit 0 - DS2 Reframe
This âRead/Writeâ bit-field permits the user to force
(via software) Receive DS2 Framer # 6 to execute a
âRe-Frameâ procedure.
A â0â to â1â transition, within this bit-field will cause
Receive DS2 Framer # 6 to execute a âre-frameâ op-
eration.
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