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MX803ADW Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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MX803ADW Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers |
9 / 26 page Audio Signaling Processor 9 MX803A PRELIMINARY INFORMATION © 1996 MX•COM, INC. Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 Doc. # 20480122.003 5.2 Address/Commands The first byte of a loaded data sequence is always recognized by the C-BUS as an Address/Command (A/C) byte. Instruction and data transactions to and from this device consist of an A/C byte followed by further instruction/data or a status/data reply. Instructions and data are loaded and transferred via C-BUS in accordance with the timing information given in Figure 8 and Figure 9. Table 1 shows the list of A/C bytes relevant to the MX803A. Command Assignment Address/Command (A/C) Byte Data Bytes Hex Binary msb lsb General Reset 01 00000001 Write to Control Register 30 00110000 + 1 byte instruction to Control Register Read Status Register 31 00110001 + 1 byte reply from Status Register Read RX Tone Frequency 32 00110010 + 2 bytes reply from RX Tone Register Write to Notone Timer 33 00110011 + 1 byte instruction to Notone Register Write to TX Tone Gen. 1 34 00110100 + 2 bytes instruction to TX Tone Gen. 1 Write to TX Tone Gen. 2 35 00110101 + 2 bytes instruction to TX Tone Gen. 2 Write to G/Purpose Timer 36 00110110 + 1 byte instruction to G/Purpose Timer Table 1: C-BUS Address/Commands 0 1000 208Hz to 3000Hz 625Hz to 3000Hz 313Hz to 1500Hz 1250Hz to 6000Hz 2000 3000 4000 5000 6000 0 1000 2000 3000 4000 5000 6000 Frequency (Hz) (TX) Tone Generators 1 and 2 (RX) Mid Band (RX) High Band (RX) Extended Band Figure 4: MX803A Frequencies |
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