DS21Q58 データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS21Q58 Datasheet PDF : 74 Pages
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DS21Q58 E1 Quad Transceiver
TABLE OF CONTENTS
1. ACRONYMS .......................................................................................................................6
2. DETAILED DESCRIPTION.................................................................................................6
3. BLOCK DIAGRAM .............................................................................................................7
4. PIN DESCRIPTION.............................................................................................................8
4.1 PIN FUNCTION DESCRIPTIONS......................................................................................................12
5. FUNCTIONAL DESCRIPTION .........................................................................................13
6. HOST INTERFACE PORT................................................................................................14
6.1 PARALLEL PORT OPERATION .......................................................................................................14
6.2 SERIAL PORT OPERATION............................................................................................................14
7. REGISTER MAP...............................................................................................................16
8. CONTROL, ID, AND TEST REGISTERS .........................................................................17
8.1 POWER-UP SEQUENCE................................................................................................................18
8.2 FRAMER LOOPBACK ....................................................................................................................21
8.3 AUTOMATIC ALARM GENERATION .................................................................................................22
8.4 REMOTE LOOPBACK ....................................................................................................................22
8.5 LOCAL LOOPBACK .......................................................................................................................23
9. STATUS AND INFORMATION REGISTERS ...................................................................27
9.1 INTERRUPT HANDLING .................................................................................................................28
9.2 CRC4 SYNC COUNTER................................................................................................................29
10. ERROR COUNT REGISTERS..........................................................................................34
10.1 BPV OR CV COUNTER .............................................................................................................34
10.2 CRC4 ERROR COUNTER ..........................................................................................................34
10.3 E-BIT/PRBS BIT-ERROR COUNTER ..........................................................................................35
10.4 FAS ERROR COUNTER.............................................................................................................35
11. SIGNALING OPERATION................................................................................................36
11.1 RECEIVE SIGNALING.................................................................................................................36
11.2 TRANSMIT SIGNALING...............................................................................................................36
11.3 CAS OPERATION .....................................................................................................................36
12. DS0 MONITORING FUNCTION .......................................................................................37
13. PRBS GENERATION AND DETECTION.........................................................................39
14. SYSTEM CLOCK INTERFACE ........................................................................................40
15. TRANSMIT CLOCK SOURCE..........................................................................................41
16. IDLE CODE INSERTION ..................................................................................................41
17. PER-CHANNEL LOOPBACK ..........................................................................................42
18. ELASTIC STORE OPERATION .......................................................................................42
19. ADDITIONAL (Sa) AND INTERNATIONAL (Si) BIT OPERATION..................................43
20. USER-CONFIGURABLE OUTPUTS ................................................................................45
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