PSB3186HV14XP Lantiq, PSB3186HV14XP Datasheet - Page 42
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PSB3186HV14XP
Manufacturer Part Number
PSB3186HV14XP
Description
Manufacturer
Lantiq
Datasheet
1.PSB3186HV14XP.pdf
(200 pages)
Specifications of PSB3186HV14XP
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
- Current page: 42 of 200
- Download datasheet (4Mb)
3.3.2
According to ITU recommendation I.430 a multiframe provides extra layer 1 capacity in
the TE-to-NT direction by using an extra channel between the TE and NT (Q-channel).
The Q bits are defined to be the bits in the F
In the NT-to-TE direction the S-channel bits are used for information transmission. One
S channel (S1) out of five possible S-channels can be accessed by the ISAC-SX TE.
In the NT-to-TE direction the S-channel bits are used for information transmission.
The S and Q channels are accessed via the µC interface or the IOM-2 MONITOR
channel, respectively, by reading/writing the SQR or SQX bits in the S/Q channel
registers (SQRRx, SQXRx).
Table 8
Table 8
After multiframe synchronization has been established, the Q data will be inserted at the
upstream (TE ® NT) F
When synchronization is not achieved or lost, each received F
transmitted F
Multiframe synchronization is achieved after two complete multiframes have been
detected with reference to F
if bit errors in F
Data Sheet
– F
– L.
– D
– E
– F
– N
– B1
– B2
– A
– S
– M
A
shows the S and Q bit positions within the multiframe.
S/T-Interface Multiframing
Framing Bit
D.C. Balancing Bit
D-Channel Data Bit
D-Channel Echo Bit
Auxiliary Framing Bit
B1-Channel Data Bit
B2-Channel Data Bit
Activation Bit
S-Channel Data Bit
Multiframing Bit
A
S/Q-Bit Position Identification and Multiframe Structure
bit.
A
/N bit or M bit positions have been detected in two consecutive
A
bit position in each 5th S/T frame (see
A
/N bit and M bit positions. Multiframe synchronization is lost
F = (0b) ® identifies new frame (always
positive pulse, always code violation)
L. = (0b) ® number of binary ZEROs sent
after the last L. bit was odd
Signaling data specified by user
E = D ® received E-bit is equal to transmitted
D-bit
See section 6.3 in ITU I.430
N =
User data
User data
A = (0b) ® INFO 2 transmitted
A = (1b) ® INFO 4 transmitted
S
M = (1b) ® Start of new multiframe
42
1
channel data (see note below)
A
F
bit position.
A
Description of Functional Blocks
A
bit is mirrored to the next
Table
8).
ISAC-SX TE
PSB 3186
2003-01-30
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