82P2281PFG IDT, Integrated Device Technology Inc, 82P2281PFG Datasheet - Page 60

• Manufacturer Part Number: 82P2281PFG
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2281PFG

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

IDT82P2281
3.15.2
(refer to Figure 13), which are Channel Associated Signalings (CAS).
The signaling codewords (ABCD) are clocked out on the RSIG/MRSIG
pins. They are in the lower nibble of the timeslot with its corresponding
data serializing on the RSD/MRSD pins (as shown in Figure 17).
sponding timeslot are extracted to the A,B,C,D bits in the Extracted Sig-
naling Data/Extract Enable register. The data in the A,B,C,D bits in the
register are the data to be output on the RSIG/MRSIG pins. The bits cor-
responding to TS0 and TS16 output on the RSIG/MRSIG pins are Don’t-
Care.
Thus, the A,B,C,D bits in the Extracted Signaling Data/Extract Enable
register are updated only if 2 consecutive received ABCD codewords of
the same timeslot are identical.
frame synchronization, out of Signaling multi-frame synchronization or
Functional Description
In Signaling Multi-Frame, the signaling bits are located in TS16
When the EXTRACT bit is set to ‘1’, the signaling bits in its corre-
Signaling de-bounce will be executed when the DEB bit is set to ‘1’.
Signaling freezing is performed automatically when it is out of Basic
RSIG/MRSIG
RSD/MRSD
RSIG/MRSIG
RSD/MRSD
E1 MODE
1 2 3 4 5 6 7 8
1 2 3 4 5 6 78
Channel 24
TS31
ABCD
A B C D
1 2 3 4 5 6 78 1 2 3 4 5 6 78
TS0
F-bit
F
Figure 16. Signaling Output In T1/J1 Mode
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
Figure 17. Signaling Output In E1 Mode
Channel 1
TS1
ABCD
A B C D
1 2 3 4 5 6 78 1 2 3 4 5 6 78 1 2 3 4 5 6 78
TS15
60
Channel 2
ABCD
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
slips occurs in the Elastic Store Buffer. It is also performed when the
FREEZE bit is set to ‘1’. The signaling freezing freezes the signaling
data in the A,B,C,D bits in the Extracted Signaling Data/Extract Enable
register as the previous valid value.
Extracted Signaling Data/Extract Enable register are changed, it is cap-
tured by the corresponding COSI[X] bit (1 ≤ X ≤ 30). When the SIGE bit
is set to ‘1’, any one of the COSI[X] bits being ‘1’ will generate an inter-
rupt and will be reported by the INT pin.
of the Receive CAS/RBS Buffer. They are accessed by specifying the
address in the ADDRESS[6:0] bits. Whether the data is read from or
written into the specified indirect register is determined by the RWN bit
and the data is in the D[7:0] bits. The access status is indicated in the
BUSY bit. Refer to Chapter 4.5 Indirect Register Access Scheme for
details about the indirect registers write/read access.
A B C D
Each time the extracted signaling bits in the A,B,C,D bits in the
The EXTRACT bit and the A,B,C,D bits are in the indirect registers
TS16
TS17
1 2 3 4 5 6 7 8
ABCD
Channel 24
A B C D
1 2 3 4 5 6 78 1 2 3 4 5 6 78
TS31
F-bit
ABCD
F
1 2 3 4 5 6 7 8
Channel 1
TS0
August 20, 2009
A B C D