cx20452-a Conexant Systems, Inc., cx20452-a Datasheet
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... CX06833-4x SMXXD Modem V.92/V.34/V.32bis Modem in 144-Pin TQFP with Optional CX20452 Voice Codec Data Sheet DSH-202320A July 2009 ...
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... Conexant Systems, Inc. All Rights Reserved. Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are provided by Conexant as a service to its customers and may be used for informational purposes only. Conexant assumes no responsibility for errors or omissions in these materials. Conexant may make changes to this document at any time, without notice. Conexant advises all customers to ensure that they have the latest version of this document and to verify, before placing orders, that information being relied on is current and complete ...
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... Data/Fax Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.4.3.2 V.44 Data Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.4.3.3 Country Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.4.3.4 TAM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.4.3.5 Speakerphone Mode (S Models 1.4.4 Reference Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1.5 Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1.5.1 CX06833 Modem Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1.5.2 CX20452 Voice Codec 1.6 AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2 Technical Specifications 2.1 Serial DTE Interface Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.1.1 Automatic Speed/Format Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.1.1.1 Command Mode and Data Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.1.1.2 Fax Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.2 Parallel Host Bus Interface Operation ...
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Billing Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... CX06833-4x Data Sheet 3.1.1 CX06833 Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.2 CX20452 VC Hardware Pins and Signals (S Models 3.2.1 CX20452 VC Signal Summary 3.2.1.1 Speakerphone Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 3.2.1.2 Telephone Handset/Headset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 3.2.1.3 CX06833 Modem Interface 3.2.1.4 Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 3.2.2 CX20452 VC Pin Assignments and Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . 59 3.3 Electrical and Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 3.3.1 Operating Conditions, Absolute Maximum Ratings, and Power Requirements . . . . . 65 3 ...
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Preliminary Information/Conexant Proprietary and Confidential Conexant CX06833-4x Data Sheet DSH-202320A 7/31/09 ...
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... CX06833 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High Figure 6. CX06833 Hardware Signals for Serial Interface (PARIF = Low Figure 7. CX06833 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low Figure 8. CX20452 VC Hardware Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Figure 9. CX20452 VC 24-Pin QFN Pin Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Figure 10. Waveforms - External Memory Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Figure 11. ...
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Preliminary Information/Conexant Proprietary and Confidential Conexant CX06833-4x Data Sheet DSH-202320A 7/31/09 ...
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... Table 7. CX06833 I/O Type Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Table 8. CX06833 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Table 9. CX20452 VC 24-Pin QFN Pin Signals Table 10. CX20452 VC Pin Signal Definitions Table 11. CX20452 VC DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Table 12. CX20452 VC Analog Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Table 13. Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Table 14. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Table 15. Current and Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Table 16 ...
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Tables 10 Preliminary Information/Conexant Proprietary and Confidential Conexant CX06833-4x Data Sheet DSH-202320A 7/31/09 ...
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... Fax Group 3 send and receive rates are supported up to 14.4 kbps with T.30 protocol. The SMXXD modem operates with PSTN telephone lines worldwide. S models, using the optional CX20452 Voice Codec (VC 24-pin QFN, support position independent, full-duplex speakerphone (FDSP) operation using microphone and speaker, as well as other voice/TAM applications using handset or headset. ...
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... QC, MOH, [24-Pin QFN] PCM Part Number Part Number Embedded Applications — Y — — — — CX20452-A Y CX20452-A — CX20452-A — Aftermarket Applications CX20452-A Y Conexant CX06833-4x Data Sheet Supported Functions V.32 bis Data, V.44 Data Compression, Voice/ V.34 Data V.17 Fax, FDSP TAM, Worldwide Y Y — — ...
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... 24-P in QFN (O p tio DAA Hardware Telephone Line Interface Discrete Components Voice Relay, HS Pickup (Optional) HS Hybrid Components CX20452 (Optional) Voice Codec (VC) 24-Pin QFN (Mic/Speaker) (Optional) Interface (Optional) Digital Speaker Circuit (Optional) Serial EEPROM 2K (256 256K (32K x 8) (Optional) ...
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Introduction 1.3 Features 1.3.1 General Modem Features Data modem – Quick connect, Modem-on-Hold, and PCM upstream functions (V.92 models) – ITU-T V.92/V.90 (V.92 models), V.34 (V.92 and V.34 models), V.32bis, V.32, V.29, FastPOS (V.29), V.22 bis, V.22, V.22 Fast Connect, ...
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... Conexant ADPCM, 8-bit linear PCM, and 4-bit IMA coding – 8 kHz sample rate – Concurrent DTMF, ring, and Caller ID detection Full-duplex speakerphone (FDSP) mode using optional CX20452 Voice Codec (S models) – Microphone and speaker interface – Telephone handset or headset interface – ...
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Introduction 1.4 Technical Overview 1.4.1 General Description Modem operation, including dialing, call progress, telephone line interface, telephone handset interface, optional voice/speakerphone interface, and host interface functions are supported and controlled through the V.250, V.251, and V.253-compatible command set. The modem ...
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CX06833-4x Data Sheet 1.4.3 Operating Modes 1.4.3.1 Data/Fax Modes Data modem modes perform complete handshake and data rate negotiations. Using modem modulations to optimize modem configuration for line conditions, the modem can connect at the highest data rate that the ...
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Introduction 1.4.3.3 Country Support Country-specific modem parameters for functions such as dialing, carrier transmit level, calling tone, call progress tone detection, answer tone detection, blacklisting, caller ID, and relay control are programmable. Country code IDs are defined by ITU-T T.35. ...
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CX06833-4x Data Sheet Table 2. Default Countries Supported Country Call Waiting Tone Detection Country Code Australia 09 X Austria 0A X Belgium 0F X Brazil 16 X China 26 X Denmark 31 X Finland 3C X France 3D X Germany ...
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Introduction 1.4.3.5 Speakerphone Mode (S Models) S models include additional telephone handset, external microphone, and external speaker interfaces which support voice and full-duplex speakerphone (FDSP) operation. Hands-free full-duplex telephone operation is supported in Speakerphone Mode under host control. Speakerphone Mode ...
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... CX06833-4x Data Sheet 1.5.2 CX20452 Voice Codec The optional CX20452 Voice Codec (VC), packaged in a 24-pin QFN, supports voice/ full-duplex speakerphone (FDSP) operation with interfaces to a microphone and speaker and to a telephone handset/headset. 1.6 AT Commands The SMXXD Modem supports AT commands for data mode, fax class 1 or 1.0, voice/ audio, full-duplex speakerphone (FDSP), V ...
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Introduction 22 Preliminary Information/Conexant Proprietary and Confidential Conexant CX06833-4x Data Sheet DSH-202320A 7/31/09 ...
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Technical Specifications 2.1 Serial DTE Interface Operation 2.1.1 Automatic Speed/Format Sensing 2.1.1.1 Command Mode and Data Mode The modem can automatically determine the speed and format of the data sent from the DTE. The modem can sense speeds of ...
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Technical Specifications 2.2 Parallel Host Bus Interface Operation Command Mode and Data Mode. The modem can operate at rates up to 230.4 kbps by programming the Divisor Latch in the parallel interface registers if supported by communications software and/or driver. ...
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CX06833-4x Data Sheet 2.3.6 Ring Detection A ring signal can be detected from a TTL-compatible 15 square wave input. 2.3.7 Billing Protection When the modem goes off-hook to answer an incoming call, both transmission and reception ...
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Technical Specifications 2.4 Data Mode The modem enters data mode when a telephone line connection has been established between modems and all handshaking has been completed. 2.4.1 Speed Buffering (Normal Mode) Speed buffering allows a DTE to send data to, ...
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CX06833-4x Data Sheet 2.4.7 Retrain The modem may lose synchronization with the received line signal under poor or changing line conditions. If this occurs, retraining may be initiated to attempt recovery depending on the type of connection. The modem initiates ...
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Technical Specifications 2.5 V.92 Features Modem-on-Hold, quick connect, and PCM upstream are only available in V.92 models when connecting in V.92 data mode. V.92 features are only available when the server called is a V.92 server that supports that particular ...
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CX06833-4x Data Sheet 2.6 Error Correction and Data Compression 2.6.1 V.42 Error Correction V.42 supports two methods of error correction: LAPM and fallback, MNP 4. The modem provides a detection and negotiation technique for determining and establishing the ...
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Technical Specifications 2.7 Telephony Extensions The following telephony extension features are supported and are typically implemented in designs for set-top box applications and TAM software applications to enhance end-user experience: Line In Use detection Extension Pickup detection Remote Hang-up detection ...
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CX06833-4x Data Sheet 2.8 Fax Class 1 and Fax Class 1.0 Operation Facsimile functions operate in response to fax class 1 commands when +FCLASS fax class 1.0 commands when +FCLASS=1.0. In the fax mode, the on-line behavior of ...
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Technical Specifications 2.10.3 Voice Transmit Mode This mode is entered when the +VTX command is active in order to playback voice or audio data to the TXA output, typically to a speaker/handset or to the telephone line. Digitized voice data ...
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CX06833-4x Data Sheet 2.11 V.80 Synchronous Access Mode (SAM) - Video Conferencing V.80 Synchronous Access Mode between the modem and the host/DTE is provided for host-controlled communication protocols, e.g., H.324 video conferencing applications. Voice-call-first (VCF) before switching to a videophone ...
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Technical Specifications 2.14 Worldwide Country Support Internal modem firmware supports 29 country profiles (see country profiles include the following country-dependent parameters: Dial tone detection levels and frequency ranges. DTMF dialing parameters: Transmit output level, DTMF signal duration, and DTMF interdigit ...
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CX06833-4x Data Sheet 2.15 Diagnostics 2.15.1 Commanded Tests Diagnostics are performed in response to test commands. Analog Loopback (&T1 Command). Data from the local DTE is sent to the modem, which loops the data back to the local DTE. DMTF ...
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Technical Specifications 2.16 Low Power Sleep Mode Sleep Mode Entry Wake-up 36 Preliminary Information/Conexant Proprietary and Confidential The modem enters the low power sleep mode when no line connection exists and no host activity occurs for the period of time ...
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Hardware Interface 3.1 CX06833 Hardware Pins and Signals 3.1.1 CX06833 Interface Signals CX06833 hardware interface signals for parallel interface are shown by major interface in number in CX06833 hardware interface signals for serial interface are shown by major interface ...
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Hardware Interface Figure 4. CX06833 Hardware Signals for Parallel Interface (PARIF = High) 116 117 115 ...
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CX06833-4x Data Sheet Figure 5. CX06833 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) DSH-202320A 7/31/09 Preliminary Information/Conexant Proprietary and Confidential C X 06833 ...
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Hardware Interface Table 4. CX06833 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High ( Pin Signal Label I/O 1 DVDD P +3.3V 2 CNTLSIN I CX06833: SR1IO 3 MCLKIN I CX06833: MCLKOUT through 33 Ω 4 ...
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CX06833-4x Data Sheet Table 4. CX06833 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High ( Pin Signal Label I/O 27 NVMDATA (PE3) I/O EEPROM: SDA 28 LCS (PE4) I DAA: Line Current Sense Circuit 29 VDDCORE ...
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Hardware Interface Table 4. CX06833 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High ( Pin Signal Label I/O 52 SR4IN I CX06833: RXOUT 53 PD7 I NOXYCK I GND 55 XXCLK ...
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CX06833-4x Data Sheet Figure 6. CX06833 Hardware Signals for Serial Interface (PARIF = Low) 116 117 115 ...
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Hardware Interface Figure 7. CX06833 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) 44 Preliminary Information/Conexant Proprietary and Confidential C X 06833 IAL ...
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CX06833-4x Data Sheet Table 5. CX06833 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) Pin Signal Label I/O 1 DVDD P +3.3V 2 CNTLSIN I CX06833: SR1IO 3 MCLKIN I CX06833: MCLKOUT through 33 Ω 4 TXSIN I ...
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Hardware Interface Table 5. CX06833 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) Pin Signal Label I/O 28 LCS (PE4) I DAA: Line Current Sense Circuit 29 VDDCORE P Filter capacitors to GND 30 PE5 I +3.3V through ...
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CX06833-4x Data Sheet Table 5. CX06833 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) Pin Signal Label I/O 52 SR4IN I CX06833: RXOUT 53 PD7 I NOXYCK I GND 55 XXCLK IASLEEP O ...
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Hardware Interface Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations XTLI, 116, I, Ix, XTLO 117 O Ox CLKIN 115 I It CLKOUT 67 O ...
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CX06833-4x Data Sheet Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations AGND 9, 15, 134 G AGND VDDCORE 29, 59 PWR PLLVDD 88 ...
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Hardware Interface Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations Telephone Line/Telephone/Audio Interface Signals and Reference Voltage OH# (PE0 It/Ot2 VOICE# (PE1) 25 ...
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... I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations Telephone Line/Telephone/Audio Interface Signals and Reference Voltage (Continued) M_RELAYA M_ACT90 12 I Itpu DLPBK_BAR CX06833 Interconnect and Optional CX20452 VC Interface SLEEP_IN 14 I Itpd MCLKIN 3 I Ipd CNTLSIN 2 I Itpd RXOUT 6 O Ot2 ...
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Hardware Interface Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations Not Used – Connect to +3.3V through Resistor LPO 63 I I/O PC3 127 I ...
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CX06833-4x Data Sheet Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations Not Used (In Parallel Host Interface Configuration) (continued) P_PA03 60 O Ot2 P_PA07 57 ...
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Hardware Interface Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations CTS# (PC1) 124 O Ith/Ot8 DSR# (PC0) 123 O Ith/Ot8 RLSD# (PC2) 126 O Ith/Ot8 ...
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CX06833-4x Data Sheet Table 6. CX06833 Pin Signal Definitions ( Label Pin I/O I/O Type Common to Parallel Host and Serial DTE Interface Configurations Not Used (In Serial DTE Interface Configuration) BD2CLK 65 O Itpu/Ot2 PHS2 122 O ...
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Hardware Interface Table 7. CX06833 I/O Type Definitions I/O Type Ix/Ox I/O, wire Digital input, +5V tolerant/ Digital output, 2 mA, ZINT = 120 Ω It/Ot2 Digital input, +5V tolerant, keeper/ Digital output, 2 mA, ZINT = 120 Ω Itk/Ot2 ...
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CX06833-4x Data Sheet Table 8. CX06833 DC Electrical Characteristics Parameter Symbol Input Voltage Low VIL +5V tolerant +5V tolerant hysteresis Input Voltage High VIH +5V tolerant +5V tolerant hysteresis Input Hysteresis VH +3V hysteresis +5V tolerant, hysteresis Output Voltage Low ...
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... Hardware Interface 3.2 CX20452 VC Hardware Pins and Signals (S Models) 3.2.1 CX20452 VC Signal Summary Microphone and analog speaker interface signals, as well as telephone handset/ headset interface signals are provided to support functions such as speakerphone mode, telephone emulation, microphone voice record, speaker voice playback, and call progress monitor. ...
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... CX06833-4x Data Sheet 3.2.2 CX20452 VC Pin Assignments and Signal Definitions VC 24-pin QFN hardware interface signals are shown by major interface in are shown by pin number in VC hardware interface signals are defined in VC pin signal DC electrical characteristics are defined in VC pin signal analog electrical characteristics are defined in Figure 8 ...
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... Hardware Interface Figure 9. CX20452 VC 24-Pin QFN Pin Signals SLEEP MSPKR_OUT POR MAVDD MAVSS MLINE_OUTP 60 Preliminary Information/Conexant Proprietary and Confidential 1 18 M_STROBE 2 17 M_RXOUT 3 16 M_SCK 4 15 M_TXSIN CX20452 5 14 M_CLKIN 6 13 M_CNTRLSIN Conexant CX06833-4x Data Sheet DSH-202320A 7/31/09 ...
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... CX06833-4x Data Sheet Table 9. CX20452 VC 24-Pin QFN Pin Signals Pin Signal Label 1 SLEEP 2 M_SPKR_OUT 3 POR 4 MAVDD 5 MAVSS 6 M_LINE_OUTP 7 M_LINE_OUTM 8 VREF M_MIC_IN 11 M_LINE_IN 12 VDD 13 M_CNTRLSIN 14 M_CLKIN 15 M_TXSIN 16 M_SCK 17 M_RXOUT 18 M_STROBE 19 M_RELAYA 20 VDD 21 VSUB 22 VSS 23 D_LPBK_BAR 24 NC DSH-202320A 7/31/09 Preliminary Information/Conexant Proprietary and Confidential ...
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... Hardware Interface Table 10. CX20452 VC Pin Signal Definitions ( Label Pin VDD 12 MAVDD 4 P VSS 22 G MAVSS 5 G VSUB 21 G POR 3 I SLEEP 1 I M_CLKIN 14 I M_SCK 16 O M_CNTRL_SIN 13 I M_STROBE 18 O M_TXSIN 15 I M_RXOUT 17 O M_MIC_IN 10 I M_SPKR_OUT 2 O M_LINE_OUTP ...
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... CX06833-4x Data Sheet Table 10. CX20452 VC Pin Signal Definitions ( Label Pin VREF M_RELAYA 19 O D_LPBK_BAR GENERAL NOTES: I/O types: IaAnalog input ItDigital input, TTL-compatible ItpdDigital input, TTL-compatible, internal 75k ± 25k Ω pull-down ItpuDigital input, TTL-compatible, internal 75k ± 25k Ω pull-up OaAnalog output Ot2 Digital output, TTL-compatible, 2 mA, ZINTERNAL = 120 Ω ...
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... Hardware Interface Table 12. CX20452 VC Analog Electrical Characteristics Signal Name Type M_LINE_IN, I (DA) M_MIC_IN M_LINE_OUTP O (DD) M_SPKR_OUT O (DF) GENERAL NOTES: Test Conditions unless otherwise stated: VDD = +3.3 ± 0.3 VDC; MAVDD = +3.3 ± 0.3 VDC 0°C to 70°C Parameter DAC to Line Driver output (600Ω load SCF and CTF) SNR/SDR at: ...
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CX06833-4x Data Sheet 3.3 Electrical and Environmental Specifications 3.3.1 Operating Conditions, Absolute Maximum Ratings, and Power Requirements The operating conditions are specified in The absolute maximum ratings are listed in The current and power requirements are listed in Table 13. ...
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... Mode CX06833 Normal Mode: Off-hook, normal data connection Normal Mode: On-hook, idle, waiting for ring Sleep Mode CX20452 VC (Optional) Normal Mode GENERAL NOTES: 1. Operating voltage: VDD = +3.3 V ± 0 Test conditions: VDD = +3.3 V for typical values; VDD = +3.6 V for maximum values. 3. Input Ripple ≤ 0.1 Vpeak-peak. ...
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CX06833-4x Data Sheet 3.4 Interface and Timing Waveforms 3.4.1 External Memory Bus Timing The external memory bus timing is listed in Table 16. Timing - External Memory Bus Symbol Parameter t FI Internal Operating Frequency tCYC Internal Operating Clock Cycle ...
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Hardware Interface Figure 10. Waveforms - External Memory Bus (1) C2 A[18:0] (2) ES# READ# D[7:0] FOOTNOTES: ( Internal Phase 2 Clock. (2) ES# = RAMSEL# or ROMSEL#. (1) C2 A[18:0] (2) ES# WRITE D[7:0] FOOTNOTES: (1) C2 ...
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CX06833-4x Data Sheet 3.4.2 Parallel Host Bus Timing The parallel host bus timing is listed in Table 17. Timing - Parallel Host Bus Symbol Read (See GENERAL NOTES and Address Setup t ...
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Hardware Interface Figure 11. Waveforms - Parallel Host Bus HA[2:0] HCS# HRD# HWT# HD[7:0] HA[2:0] HCS# HRD# HWT# HD[7:0] 70 Preliminary Information/Conexant Proprietary and Confidential DRH DD Host ...
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CX06833-4x Data Sheet 3.4.3 Serial DTE Interface The serial DTE interface waveforms for 4800 and 9600 bps are illustrated in Figure 12. Waveforms - Serial DTE Interface TXCLK 4800 BPS TXD 4800 BPS TXCLK 9600 BPS TXD 9600 BPS GENERAL ...
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Hardware Interface 3.5 Crystal Specifications Crystal specifications are listed in Table 18. Frequency Calibration tolerance including effects due to temperature and aging Oscillation mode Calibration mode Load capacitance, C Shunt Capacitance, C Series resistance, R Drive level Operating temperature Storage ...
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Package Dimensions The 144-pin TQFP package dimensions are shown in The 24-pin QFN package dimensions are shown in Figure 13. Package Dimensions - 144-Pin TQFP DSH-202320A 7/31/09 Preliminary Information/Conexant Proprietary and Confidential Figure Figure 14. Conexant 13. 73 ...
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Package Dimensions Figure 14. Package Dimensions - 24-Pin QFN 74 Preliminary Information/Conexant Proprietary and Confidential Conexant CX06833-4x Data Sheet DSH-202320A 7/31/09 ...
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Parallel Host Interface The modem supports a 16550A interface in parallel interface versions. The 16550A interface can operate in FIFO mode or non-FIFO mode. Non-FIFO mode is the same as 16450 interface operation. FIFO mode unique operations are identified. ...
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Parallel Host Interface Table 19. Parallel Interface Registers ( Register Register Name Number 1 Interrupt Enable Register 0 (DLAB = (IER Transmitter Buffer Register Transmitter FIFO Buffer Register (Write Only) (DLAB = (THR Receiver ...
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CX06833-4x Data Sheet 5.2 Register Signal Definitions 5.2.1 IER - Interrupt Enable Register (Addr = 1, DLAB = 0) The IER enables five types of interrupts that can separately assert the HINT output signal (Table enable bit ...
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Parallel Host Interface 5.2.2 FCR - FIFO Control Register (Addr = 2, Write Only) The FCR is a write-only register used to enable FIFO mode, clear the RX FIFO and TX FIFO, enable DMA mode, and set the RX FIFO ...
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CX06833-4x Data Sheet 5.2.3 IIR - Interrupt Identifier Register (Addr = 2) The Interrupt Identifier Register (IIR) identifies the existence and type five prioritized pending interrupts. Four priority levels are set to assist interrupt processing in the ...
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Parallel Host Interface Table 20. Interrupt Sources and Reset Control Interrupt Identification Register Priority Bit 31 Bit 2 Bit 1 Bit 0 Level — Highest ...
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CX06833-4x Data Sheet 5.2.4 LCR - Line Control Register (Addr = 3) The Line Control Register (LCR) specifies the format of the asynchronous data communications exchange. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bits 1-0 ...
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Parallel Host Interface 5.2.5 MCR - Modem Control Register (Addr = 4) The Modem Control Register (MCR) controls the interface with the modem or data set. Bit 7-5 Not used. Always 0. Bit 4 Local Loopback. When this bit is ...
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CX06833-4x Data Sheet 5.2.6 LSR - Line Status Register (Addr = 5) This 8-bit register provides status information to the host concerning data transfer. Bit 7 RX FIFO Error. In the 16450 mode, this bit is not used and is ...
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Parallel Host Interface Bit 1 Overrun Error (OE). This bit is set whenever received data is loaded into the RX Buffer before the host has read the previous data from the RX Buffer. The OE bit is ...
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CX06833-4x Data Sheet 5.2.8 RBR - RX Buffer (Receiver Buffer Register) (Addr = 0, DLAB = 0) The RX Buffer (RBR read-only register at location 0 (with DLAB = 0). Bit 0 is the least significant bit of ...
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Parallel Host Interface 5.2.11 SCR - Scratch Register (Addr = 7) The Scratchpad Register is a read-write register at location 7. This register is not used by the modem and can be used by the host for temporary storage. 5.3 ...
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General Information: U.S. and Canada: (888) 855-4562 International: (949) 483-4600 Headquarters – Newport Beach 4000 MacArthur Blvd. Newport Beach, CA 92660 ...