TXC-04222-AIOG Transwitch Corporation, TXC-04222-AIOG Datasheet - Page 68

• Manufacturer Part Number: TXC-04222-AIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-04222-AIOG

• Screening Level: Industrial
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

June 2003
TEMx28
TXC-04222
TXC-04222-MB, Ed. 6
Receive RDI Detection and Recovery
The RDI alarm indications are defined in the table below. The number of consecutive events for detection and
recovery is controlled by control bit V5AL10 (bit 0, 01BH). The value of five is selected when the V5AL10 con-
trol bit is 0, and the value of ten is selected when the V5AL10 control bit is 1. The number of detection and
recovery events is valid for both three bit RDI and single bit RDI.
J2 Byte Processing
There are two possible received J2 message sizes, 16 bytes (ITU-T), or 64 bytes (ANSI). The TEMx28 is capa-
ble of dimensioning the transmit RAM memory segment to the two sizes (16-Byte or 64-Byte). In addition, two
modes of operation are provided for the 16-byte (ITU-T) format: a microprocessor read mode, and a compare
read mode. The following table lists the various control states associated with J2 processing. Please note: The
64 byte RAM is used on a shared basis with the J2 and N2 bytes. When the 64 byte RAM is configured for a 64
byte J2 message, the N2 tandem connection feature is disabled. When the RAM segment is configured for a
16 byte J2 byte message, two 16 byte segment are provided for the Tandem Connection feature when
enabled, and for the J2 byte processing feature.
(bit 1, X+010H)
(bit 1, X+080H)
ARnJ2S1
BRnJ2S1
AnRDIC
BnRDIC
0
0
1
0
0
1
Proprietary TranSwitch Corporation Information for use Solely by its Customers
(bit 0, X+010H)
(bit 0, X+080H
ARnJ2S0
BRnJ2S0
AnRDIP
BnRDIP
0
1
0
0
1
0
Receive J2 segment for channel n is configured for the 16-byte J2
message size. The bytes are written into the segment on a rotat-
ing basis, starting with an arbitrary address. The J2 alarms are
disabled.
Receive J2 segment for channel n is configured for the 16-byte J2
message size, and comparison. The received 16-byte message is
compared against a 16 byte microprocessor written message, that
must be aligned to the starting address of the segment. The J2
alarms are enabled.
Receive J2 segment for channel n is configured for the 64-byte J2
message size. The bytes are written into the segment on a rotat-
ing basis, starting with an arbitrary address. The J2 alarms are
disabled.
DATA SHEET
AnRDIS
BnRDIS
RDI Alarm Definitions
1
0
0
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Remote Server Defect Indication, and a single bit
RDI indication (Bit 8 in the V5 byte).
Remote Payload Defect Indication.
Remote Connectivity Indication.
Action
Action