DS3163 Maxim Integrated Products, DS3163 Datasheet - Page 165

• Manufacturer Part Number: DS3163
• Description: IC TRPL ATM/PACKET PHY 400-PBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS3163

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 400-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.10.5 C-bit DS3 Framer/Formatter
10.10.5.1 Transmit C-bit DS3 Frame Processor
The C-bit DS3 frame format is shown in
DS3 Frame.
Table 10-32. C-Bit DS3 Frame Overhead Bit Definitions
X
P
M
F
C
C
C
C
C
C
C
C
C
X
the parity bits used for line error monitoring. M
alignment bits. C
value of one. C
of one. C
Block Error (FEBE) bits used for remote path error monitoring. C
(or HDLC) bits. C
value of one. The X-bit, P-bit, M-bit, C-bit, and F-bit positions are overhead bits, and the other bit positions in the
DS3 frame are payload bits.
10.10.5.2 Transmit C-bit DS3 Frame Generation
C-bit DS3 frame generation receives the incoming payload data stream, and overwrites the entire overhead bit
locations.
The multiframe alignment bits (M
respectively.
The subframe alignment bits (F
respectively.
The X-bits (X
programmable (automatic, 1, or 0). If the T3.TCR.ARDID is one then the T3.TCR.TRDI register bit controls this bit.
If the RDI is generated automatically (T3.TCR.ARDID=0), the X-bits are set to zero when one or more of the
XY
1
1
1
11
12
13
21
31
41
51
61
71
1
, X
, P
, M
and X
, C
, C
, C
, C
, C
, C
2
2
2
22
32
42
52
62
72
, and M
Bit
, and C
, and C
, and C
, and C
, and C
, and C
2
31
are the Remote Defect Indication (RDI) bits (also referred to as the far-end SEF/AIS bits). P
, C
32
3
1
23
33
43
53
63
73
13
, and C
11
and X
is the Far-End Alarm and Control (FEAC) signal. C
61
is the Application Identification Channel (AIC). C
, C
Remote Defect Indication
(RDI)
Parity Bits
Multiframe Alignment Bits
Subframe Alignment Bits
Application Identification
Channel (AIC)
Reserved
Far-End Alarm and Control
(FEAC) signal
Unused
C-bit parity bits
Far-End Block Error (FEBE)
bits
Path Maintenance Data Link
(or HDLC) bits
Unused
Unused
62
33
2
, and C
) are both overwritten with the Remote Defect Indicator (RDI). The RDI source is
are the C-bit parity bits used for path error monitoring. C
Definition
X1
63
, F
are unused, and have a value of one. C
1
X2
, M
, F
2
X3
, and M
Figure
, and F
1
, M
10-38.
X4
3
2
) are overwritten with the values zero, one, and zero (010)
) are overwritten with the values one, zero, zero, and one (1001)
, and M
Table 10-32
3
are the multiframe alignment bits. F
51
, C
12
shows the function of each overhead bit in the
21
52
is reserved for future network use, and has a
, C
, and C
22
71
, and C
, C
53
72
are the path maintenance data link
, and C
23
41
, C
are unused, and have a value
42
73
, and C
are unused, and have a
XY
43
are the subframe
are the Far-End
1
and P
2
are