82P2284BB IDT, Integrated Device Technology Inc, 82P2284BB Datasheet - Page 255

• Manufacturer Part Number: 82P2284BB
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2284BB

• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

E1 Maintenance Function Control 2 (031H, 131H, 231H, 331H)
BPV_INS:
EXZ_DEF:
EXZ_ERR[1:0]:
CNT_MD:
CNT_TRF:
counter.
Programming Information
IDT82P2284
Bit Name
A transition from ‘0’ to ‘1’ on this bit generates a single Bipolar Violation (BPV) Error to be inserted to the data stream to be transmitted.
This bit must be cleared and set again for the next BPV error insertion.
This bit selects the Excessive Zero (EXZ) Error criteria.
= 0: The ANSI is selected. In AMI line code rule, the EXZ error is defined as more than 15 consecutive zeros in the data stream. In HDB3 line code
rule, the EXZ error is defined as more than 3 consecutive zeros in the data stream.
= 1: The FCC is selected. In AMI line code rule, the EXZ error is defined as more than 80 consecutive zeros in the data stream. In HDB3 line code
rule, the EXZ error is defined as more than 3 consecutive zeros in the data stream.
These bits must be set to ‘01’ to enable the Excessive Zero (EXZ) Error event to be counted in an internal 16-bit EXZ counter.
= 0: The Manual Report mode is selected. The internal 16-bit EXZ counter transfers its content to the EXZ Error Counter L-Byte & H-Byte registers
when there is a transition from ‘0’ to ‘1’ on the CNT_TRF bit.
= 1: The Auto Report mode is selected. The internal 16-bit EXZ counter transfers its content to the EXZ Error Counter L-Byte & H-Byte registers
every one second automatically.
This bit is valid when the CNT_MD bit is ‘0’.
A transition from ‘0’ to ‘1’ on this bit updates the content in the EXZ Error Counter L-Byte & H-Byte registers with the value in the internal 16-bit EXZ
This bit must be cleared and set again for the next updating.
Default
Bit No.
Type
Reserved
7
BPV_INS
R/W
6
0
Reserved
5
EXZ_DEF
R/W
4
0
255
QUAD T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
EXZ_ERR1
R/W
3
0
EXZ_ERR0
R/W
2
0
CNT_MD
R/W
1
0
February 25, 2008
CNT_TRF
R/W
0
0