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ST75C540 数据表(PDF) 3 Page - STMicroelectronics |
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ST75C540 数据表(HTML) 3 Page - STMicroelectronics |
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3 / 84 page ![]() VII COMMAND SET DESCRIPTION . . . .. .. . . . . . .... . . ... . . .... ..... ..... . . . . . 28 VIII STATUS DESCRIPTION . . . .. .. . . . . . . .. .. . . .. . . .... ..... ..... . . . . .. ... . . 43 VIII.1 COMMAND ACKNOWLEDGE AND REPORT . . . . . . .... ..... . . .. . . .... . . .. . . . 43 VIII.2 MODEM STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... ..... . . . . .. ... . . .... .. 44 IX TONE DETECTORS . . . . ...... ... . . . . . . . . . . . . . . . . ..... ..... ..... .... . . .. 53 IX.1 OVERVIEW. .... . . . ... ..... ...... .. . . .... ..... . . .. . . .... . . ... .. . . .. ... 53 IX.2 DESCRIPTION . .... . . . ... ..... ...... .. . . ... . . .... . . .. . . .... . . ... .. . . .. 53 IX.3 EXAMPLE . . . . . . . . . . . . . . . . . . . . . . . . ..... .. ...... . . . . .. ... . . .... .. . . .. .. 59 X PARALLEL DATA EXCHANGE. . . . ...... ... ..... . . ... .. . . . . ..... ..... .... 60 X.1 OVERVIEW. .... . . . ... ..... ...... .. . . .... ..... . . .. . . .... . . ... .. . . .. ... 60 X.2 TRANSMIT BUFFER . . . . . . . . . . . . . . . . . . . . . . ..... ..... ..... . . . . .. ... . . ... 60 X.3 RECEIVE BUFFER . .... . . . ... ..... ...... .. .. . . . . . .... . . .. . . .... . . ... .. . 61 X.4 INTERRUPTION . . . . ...... ... . . . . . . . . ... ... . . ..... ..... ..... .... . . ... . . 61 X.5 DATA FORMAT . . . . ...... ... . . . . . . . . ... ... . . ..... ..... ..... .... . . ... . . 61 X.6 FORM COMMAND . .... . . . ... ..... ...... .. .. . . . . . .... . . .. . . .... . . ... .. . 63 XI TRANSMITTING DATA IN PARALLEL MODE . . . . . .. . . ..... .... . . ... .. . . . . . . 64 XI.1 DESCRIPTION . .... . . . ... ..... ...... .. . . ... . . .... . . .. . . .... . . ... .. . . .. 64 XI.2 MODEM FLOW CHART . . . . ...... ... . . . . . . .... .. . . . . ..... ..... ..... .... . 65 XI.3 HOST FLOW CHART . . . . . . . . . . . . . . . . . . . . . . ..... ..... ..... . . . . .. ... . . ... 65 XI.4 ERROR DETECTION . . . . . . . . . . . . . . . . . . . . . . ..... ..... ..... . . . . .. ... . . ... 66 XI.5 SYNCHRONOUS MODE . . . . . . . . . . . . . . . . . . . . . . . .... ..... ..... . . . . .. ... . . 66 XI.6 HDLC MODE. . . . ...... ... . . . . . . . . ... ..... ..... ..... ..... .... . . ... . . ... 67 XI.7 UART MODE DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . .... ..... ..... . . . . .. .. 69 XII RECEIVING IN PARALLEL MODE . . . . ...... . . .. .... . . ... .. . . . . ..... ..... . 70 XII.1 DESCRIPTION . .... . . . ... ..... ...... .. . . ... . . .... . . .. . . .... . . ... .. . . .. 70 XII.2 MODEM FLOW CHART . . . . ...... ... . . . . . . .... .. . . . . ..... ..... ..... .... . 70 XII.3 HOST FLOW CHART . . . . . . . . . . . . . . . . . . . . . . ..... ..... ..... . . . . .. ... . . ... 70 XII.4 ERROR DETECTION . . . . . . . . . . . . . . . . . . . . . . ..... ..... ..... . . . . .. ... . . ... 71 XII.5 SYNCHRONOUS MODE . . . . . . . . . . . . . . . . . . . . . . . .... ..... ..... . . . . .. ... . . 72 XII.6 HDLC MODE. . . . ...... ... . . . . . . . . ... ..... ..... ..... ..... .... . . ... . . ... 72 XII.7 UART MODE. . . . ...... ... . . . . . . . . ... ..... ..... ..... ..... .... . . ... . . ... 74 XIII VOCODER DATA EXCHANGE . . . . ...... ... ..... . . ... .. . . . . ..... ..... .... 74 XIII.1 OVERVIEW. .... . . . ... ..... ...... .. . . .... ..... . . .. . . .... . . ... .. . . .. ... 74 XIII.2 VOCODER BUFFER. . . . ...... ... . . . . . . . . . . . . . . . . ..... ..... ..... .... . . .. 74 XIII.3 TRANSMIT (DECODER) . . . . . . . . . . . . . . . . . . . . . . . .... ..... ..... . . . . .. ... . . 74 XIII.4 RECEIVE (CODER) . . . . ...... ... . . . . . . . . . . . . . . . . ..... ..... ..... .... . . .. 75 XIV TRANSPARENT MODE DATA EXCHANGE. . . . . . . . ... . . ... . . ... . . .... ..... . 75 XV DEFAULT CALL PROGRESS TONE DETECTORS . . . ... . . ... . . ... . . ... . . .... 76 XVI DEFAULT ANSWER TONE DETECTORS . . . . ... . . ..... .... . . ... .. . . . . ..... 76 XVII ELECTRICAL SCHEMATICS. . . .. .. . . . . . . .. . . . ... . . .... ..... ..... . . . . .. .. 77 XVIII PCB DESIGN GUIDELINES. . . . ...... ... . . . . . . . ... .. . . . . ..... ..... ..... .. 78 XIX APPENDIX A : MODES OF OPERATION . .... ..... ..... . . .. . . .... . . .. . . .... 78 XX PACKAGE MECHANICAL DATA . .... . . . ... . . .. . . .. . . .... . . .. . . .... . . .. . . 83 ST75C530 - ST75C540 3/84 |
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