 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
CMX644AD2 Datasheet(PDF) 10 Page - CML Microcircuits |
|
||||||||||||||||||||||||||||||
CMX644AD2 Datasheet(HTML) 10 Page - CML Microcircuits |
|
|
10 / 34 page  V22 and Bell 212A Modem CMX644A © 2000 Consumer Microcircuits Limited 10 D/644A/6 1.5.3 Software Description Write-only ‘C-BUS’ Registers REGISTER NAME HEX ADDRESS/ COMMAND BIT 7 (D7) BIT 6 (D6) BIT 5 (D5) BIT 4 (D4) BIT 3 (D3) BIT 2 (D2) BIT 1 (D1) BIT 0 (D0) GENERAL RESET $01 N/A N/A N/A N/A N/A N/A N/A N/A SET-UP $E0 0 RELAY DRIVE DETECT DET1 DETECT DET0 LOOP- BACK: L1 LOOP- BACK: L0 XTAL FRQ: X1 XTAL FRQ: X0 TX TONES $E1 TONE SEL TONE / NOTONE DTMF / MODEM TONES DTMF / SNGL D3 D2 D1 D0 GAIN BLOCKS $E2 TXGAIN TG3 TXGAIN TG2 TXGAIN TG1 TXGAIN TG0 RXGAIN RG3 RXGAIN RG2 RXGAIN RG1 RXGAIN RG0 TX DATA BYTE $E3 D7 D6 D5 D4 D3 D2 D1 D0 UART MODE $E4 0 0 SYNC/ ASYNC STOP BITS B STOP BITS A PARITY ENABLE PARITY ODD/ EVEN DATA BITS 8/7 TX PSK MODE $E7 0 TXON ENAB SCRAMB UNLOCK SCRAMB ENABLE EQUAL ET1 EQUAL ET0 ENABLE HI / LO BAND RX PSK MODE $E8 0 CPBW SELECT DE- SCRAMB UNLOCK DE- SCRAMB ENABLE EQUAL ER1 EQUAL ER0 ENABLE HI / LO BAND IRQ MASK BITS $EE RX PARITY RING DETECT DETECT RX DATA OVER- FLOW RX DATA READY TX DATA UNDER- FLOW TX DATA READY UN-SCRAM MARK Write-only Register Descriptions GENERAL RESET ($01) The reset command has no data attached to it. Application of the GENERAL RESET sets all write-only register bits to ‘0’. SET-UP Register ($E0) (Bit 7) Reserved for future use. This bit should be set to ‘0’. RELAY DRIVE (Bit 6) This bit controls a low impedance pull-down transistor connected to the RLYDRV pin to assist with the operation of an ‘off-hook relay’. When set to ‘1’ the transistor acts as a pull-down and will sink current. When set to ‘0’ the pin is in a high impedance state. DETECT DET1 and DET0 (Bits 5 and 4) These 2 bits control the operation of the receiver filter in order to facilitate the detection of the following signals as shown in the table below: DET1 Bit 5 DET0 Bit 4 Required Rx HI/LO Band Setting (Register $E8, Bit 0) Detection Mode 0 0 As required for Rx PSK PSK Carrier 0 1 LO = ‘0’ Call Progress 1 0 HI = ‘1’ Answer Tone 1 1 As required for Rx PSK Detectors OFF Rx PSK MODE register ENABLE bit should be set to ‘1’ for answertone and call progress detection. |
Similar Part No. - CMX644AD2 |
|
Similar Description - CMX644AD2 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
