DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 8

• Manufacturer Part Number: DS21Q55
• Description: IC TXRX QUAD T1/E1/J1 SCT 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q55

• Function: Transceiver
• Interface: E1, J1, T1
• Number Of Circuits: 4
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Includes: BERT Generator and Detector, Dual HDLC Controllers
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -

DS21Q55 Quad T1/E1/J1 Transceiver
TABLE OF TABLES
Table 2-A. Pin Description Sorted by Pin Number .....................................................................................................29
Table 3-A. Register Map Sorted by Address ..............................................................................................................36
Table 7-A. T1 Alarm Criteria .......................................................................................................................................58
Table 8-A. E1 Sync/Resync Criteria ...........................................................................................................................60
Table 8-B. E1 Alarm Criteria.......................................................................................................................................65
Table 12-A. T1 Line Code Violation Counting Options...............................................................................................80
Table 12-B. E1 Line-Code Violation Counting Options ..............................................................................................80
Table 12-C. T1 Path Code Violation Counting Arrangements....................................................................................82
Table 12-D. T1 Frames Out-of-Sync Counting Arrangements ...................................................................................83
Table 14-A. Time Slot Numbering Schemes ..............................................................................................................94
Table 15-A. Idle-Code Array Address Mapping........................................................................................................100
Table 15-B. GRIC and GTIC Functions ....................................................................................................................102
Table 17-A. Elastic Store Delay After Initialization ...................................................................................................112
Table 21-A. HDLC Controller Registers ...................................................................................................................131
Table 22-A. Transformer Specifications ...................................................................................................................162
Table 25-A. Transmit Error-Insertion Setup Sequence ............................................................................................183
Table 25-B. Error Insertion Examples ......................................................................................................................185
Table 30-A. Instruction Codes for IEEE 1149.1 Architecture ...................................................................................202
Table 30-B. ID Code Structure .................................................................................................................................203
Table 30-C. Device ID Codes ...................................................................................................................................203
Table 30-D. Boundary Scan Control Bits..................................................................................................................204
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