CX06827-14 Conexant Systems, Inc., CX06827-14 Datasheet
CX06827-14
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CX06827-14 Summary of contents
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... SC56D Modem SC56D Modem SC56D Modem SC56D Modem V.92/V.90 CX06827 Single Chip V.92/V.90 CX06827 Single Chip V.92/V.90 CX06827 Single Chip V.92/V.90 CX06827 Single Chip ACF Modem with Optional ACF Modem with Optional ACF Modem with Optional ACF Modem with Optional CX20437 Voice Codec CX20437 Voice Codec ...
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... Conexant products for use in such applications their own risk and agree to fully indemnify Conexant for any damages resulting from such improper use or sale. The following are trademarks of Conexant Systems, Inc.: Conexant™, the Conexant C symbol, and “What’s Next in Communications Technologies”™. Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners. For additional disclaimer information, please consult Conexant’ ...
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... Worldwide Operation ...............................................................................................................1-9 1.3.3.5 TAM Mode ...............................................................................................................................1-9 1.3.3.6 Voice/Speakerphone Mode (S Models) ..................................................................................1-10 1.3.4 Reference Design ......................................................................................................................................1-10 1.3.5 GSM (Parallel Host Interface) ....................................................................................................................1-10 1.4 Hardware Description................................................................................................................................................1-11 1.4.1 CX06827 Modem Controller and DSP........................................................................................................1-11 1.4.2 CX20437 Voice Codec ...............................................................................................................................1-11 1.5 Commands................................................................................................................................................................1-11 2. Technical Specifications ...................................................................................................................... 2-1 2.1 Serial DTE Interface Operation.....................................................................................................................................2-1 2.1.1 Automatic Speed/Format Sensing................................................................................................................2-1 2.2 Parallel Host Bus Interface Operation ..........................................................................................................................2-2 2.3 Establishing Data Modem Connections........................................................................................................................2-2 2 ...
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... Commanded Tests.....................................................................................................................................2-10 2.14.2 Power On Reset Tests ...............................................................................................................................2-11 2.15 Low Power Sleep Mode.............................................................................................................................................2-11 2.16 GSM Operation..........................................................................................................................................................2-11 3. Hardware Interface .............................................................................................................................. 3-1 3.1 CX06827 ACF Hardware Pins and Signals ...................................................................................................................3-1 3.1.1 CX06827 ACF Interface Signals ...................................................................................................................3-1 3.2 CX20437 VC Hardware Pins and Signals (S Model)...................................................................................................3-22 3.3 Electrical and Environmental Specifications...............................................................................................................3-28 3.4 Operating Conditions, Absolute Maximum Ratings, and Power Requirements...........................................................3-28 3 ...
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SC56D Single Chip ACF Modem Data Sheet 5.1 Overview .....................................................................................................................................................................5-1 5.2 Register Signal Definitions ..........................................................................................................................................5-3 5.2.1 IER - Interrupt Enable Register (Addr = 1, DLAB = 0) ..................................................................................5-3 5.2.2 FCR - FIFO Control Register (Addr = 2, Write Only) .....................................................................................5-4 ...
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... Figure 3-2. CX06827 ACF 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High)...............................................3-3 Figure 3-3. CX06827 ACF Hardware Signals for Serial Interface (PARIF = Low).............................................................3-11 Figure 3-4. CX06827 ACF 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low)................................................3-12 Figure 3-5. CX20437 VC Hardware Interface Signals .....................................................................................................3-23 Figure 3-6. CX20437 VC 32-Pin TQFP Pin Signals .........................................................................................................3-23 Figure 3-7 ...
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... Table 3-1. CX06827 ACF 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High)................................................3-4 Table 3-3. CX06827 ACF Pin Signal Definitions for Parallel Interface (PARIF = High).......................................................3-6 Table 3-2. CX06827 ACF 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) .................................................3-13 Table 3-3. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low)........................................................3-15 Table 3-4 ...
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SC56D Single Chip ACF Modem Data Sheet Revision History Changes Incorporated in Doc. No. 101098E 1. Section 1.1: Added introduction to support for optional direct connect to an AMPS analog cellular phone and, for parallel host interface model, support for ...
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SC56D Single Chip ACF Modem Data Sheet 7. Figure 3-4: Added VOICE# and EXTOH# signals. 8. Table 3-2: Added VOICE# and EXTOH# signals, swapped MIC_IN and LINE_IN signals. 9. Table 3-3: Added VOICE# and EXTOH# signals, swapped MIC_IN and LINE_IN ...
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SC56D Single Chip ACF Modem Data Sheet x This page is intentionally blank. Conexant 101098E ...
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... Fax Group 3 send and receive rates are supported up to 14.4 kbps with T.30 protocol. Downloadable architecture supports downloading of updated/upgraded or customized MCU firmware and MDP code modules from the host/DTE to the CX06827 ACF. 101098E Conexant ...
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SC56D Single Chip ACF Modem Data Sheet V.80 synchronous access mode supports host-controlled communication protocols, e. g., H.324 video conferencing. In TAM mode, enhanced 2-bit or 4-bit per sample coding schemes at 8 kHz sample rate provide flexible format compatibility ...
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... DS56-L147-021 CX06827-11 SC56D/S DS56-L147-031 CX06827-11 SC336D DS28-L147-021 CX06827-13 SC336D/S DS28-L147-031 CX06827-13 SC144D DS96-L147-021 CX06827-14 SC144D/S DS96-L147-031 CX06827-14 SC56D DS56-L144-301 CX06827-11 SC56D/S DS56-L144-311 CX06827-11 Notes: 1. Model options: S Voice/full-duplex speakerphone (FDSP) and analog cellular 56 56 kbps max. rate per V.90 33 33.6 kbps max. rate per V.34 14 14.4 kbps max. rate per V.32 bis. 2. Supported functions (Y = Supported ...
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... SC56D Single Chip ACF Modem Data Sheet Figure 1-2. CX06827 ACF Modem Major Interfaces CX06827 Single Chip ACF Modem 144-Pin TQFP Line Interface Microcontroller Modem Data Parallel Host Unit (MCU) Pump (MDP) or Serial DTE Interface Bootloader ROM 1-4 DAA Hardware Codec CX20437 Voice Codec (VC) ...
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SC56D Single Chip ACF Modem Data Sheet 1.2 Features 1.2.1 General Modem Features • Data modem − − − − − • Analog cellular direct connect using optional CX20437 Voice Codec (S models) • GSM cellular direct connect (parallel interface ...
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... Speaker volume control and muting Parallel 16550A UART-compatible interface with speeds up to 230.4 kbps Serial ITU-T V.24 (EIA/TIA-232-E) logical interface with speeds up to 115.2 kbps CX06827 ACF: 144-pin TQFP CX20437 VC: 32-pin TQFP CX06827 ACF: 274 mW (Normal Mode); 27.7 mW (Sleep Mode) CX20437 VC (Normal Mode) Conexant 101098E ...
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SC56D Single Chip ACF Modem Data Sheet 1.3 Technical Overview 1.3.1 General Description Modem operation, including dialing, call progress, telephone line interface, telephone handset interface, optional voice/speakerphone interface, optional analog cellular phone interface, GSM interface, and host interface functions are ...
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SC56D Single Chip ACF Modem Data Sheet 1.3.3 Operating Modes 1.3.3.1 Data/Fax Modes In V.92 data modem (SC56 models), the modem can support the following: • Receive data from a digital source supporting V.92 over the digital telephone network portion ...
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SC56D Single Chip ACF Modem Data Sheet 1.3.3.3 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 ...
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SC56D Single Chip ACF Modem Data Sheet 1.3.3.6 Voice/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 ...
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... Hardware Description 1.4.1 CX06827 Modem Controller and DSP The CX06827 Modem Controller and DSP (ACF), packaged in a 144-pin TQFP, includes a Microcontroller (MCU), a Modem Data Pump (MDP), bootloader ROM, and line interface functions. The ACF connects to host via a parallel host (PARIF = high logical V.24 (EIA/TIA- 232-E) serial DTE interface (PARIF = low) ...
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SC56D Single Chip ACF Modem Data Sheet 1-12 This page is intentionally blank. Conexant 101098E ...
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SC56D Single Chip ACF Modem Data Sheet 2. Technical Specifications 2.1 Serial DTE Interface Operation 2.1.1 Automatic Speed/Format Sensing Command Mode and Data Modem Mode. The modem can automatically determine the speed and format of the data sent from the ...
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SC56D Single Chip ACF Modem Data Sheet 2.2 Parallel Host Bus Interface Operation Command Mode and Data Modem Mode. The modem can operate at rates up to 230.4 kbps by programming the Divisor Latch in the parallel interface registers if ...
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SC56D Single Chip ACF Modem 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, ...
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SC56D Single Chip ACF Modem Data Sheet 2.4 Data Mode Data mode exists 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 ...
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SC56D Single Chip ACF Modem 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 ...
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SC56D Single Chip ACF Modem 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 ...
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SC56D Single Chip ACF Modem Data Sheet 2.7 MNP 10 Data Throughput Enhancement MNP 10 protocol and MNP Extended Services enhance performance under adverse channel conditions such as those found in rural, long distance, or cellular environments. An MNP 10 ...
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SC56D Single Chip ACF Modem Data Sheet 2.10.1 Online Voice Command Mode This mode results from the connection to the telephone line or a voice/audio I/O device (e.g., microphone, speaker, or handset) through the use of the +FCLASS=8 and +VLS ...
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SC56D Single Chip ACF Modem Data Sheet 2.10.5 Audio Mode The audio mode enables the host to transmit and receive 8-bit audio signals. In this mode, the modem directly accesses the internal analog-to-digital (A/D) converter (ADC) and the digital-to-analog (D/A) ...
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SC56D Single Chip ACF Modem Data Sheet • Dial tone detection levels and frequency ranges. • DTMF dialing parameters: Transmit output level, DTMF signal duration, and DTMF interdigit interval. • Pulse dialing parameters: Make/break times, set/clear times, and dial codes ...
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SC56D Single Chip ACF Modem Data Sheet 2.14.2 Power On Reset Tests Upon power on, the modem performs tests of the modem, internal and external RAM, and NVRAM. If the modem, internal RAM, or external RAM test fails, the TMIND# ...
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SC56D Single Chip ACF Modem Data Sheet 2-12 This page is intentionally blank. Conexant 101098E ...
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... SC56D Single Chip ACF Modem Data Sheet 3. Hardware Interface 3.1 CX06827 ACF Hardware Pins and Signals 3.1.1 CX06827 ACF Interface Signals ACF hardware interface signals for parallel interface are shown by major interface in Figure 3-1, are shown by pin number in Figure 3-2, and are listed by pin number in Table 3-1 ...
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... SC56D Single Chip ACF Modem Data Sheet Figure 3-1. CX06827 ACF Hardware Signals for Parallel Interface (PARIF = High) 116 CRYSTAL XTLI 117 CIRCUIT XTLO 115 NC CLKIN 67 NC CLKOUT 119 +3.3V NMIP 16 NC PARIF (MK0) 54 NOXYCK 21 HCS# (PD4) 23 HRD# (PD6) 22 HWT# (PD5) 112 HINT (PB7) ...
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... SC56D Single Chip ACF Modem Data Sheet Figure 3-2. CX06827 ACF 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) 101098E CX06827 Parallel Interface (PARIF Pin = High) Conexant 101098 _004 3-3 ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-1. CX06827 ACF 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) Pin Signal Label I/O 1 DVDD P +3.3V 2 CNTLSIN I ACF: SR1IO 3 MCLKIN I ACF: MCLKOUT through 33 ohms 4 TXSIN I ACF: SR4OUT 5 SCLK O ACF: IA1CLK through 33 ohms 6 RXOUT ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-1. CX06827 ACF 144-Pin TQFP Pin Signals for Parallel Interface (PARIF = High) (Continued) Pin Signal Label I/O 49 SR4OUT O ACF: TXSIN (P_PX00) 50 SA1CLK I ACF: STROBE through 33 ohms (P_PX02) 51 IA1CLK I ACF: SCLK through 33 ohms (P_PX03) 52 SR4IN I ACF: RXOUT ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-2. CX06827 ACF Pin Signal Definitions for Parallel Interface (PARIF = High) Label Pin XTLI, 116, XTLO 117 CLKIN 115 CLKOUT 67 NOXYCK 54 PARIF 16 NMI# 119 RES1# 41 RES2# 142 VGG 66 VDD 29, 48, 59, 64, 66, 84, 103, 111, ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-2. CX06827 ACF Pin Signal Definitions for Parallel Interface (PARIF = High) Label Pin A00-A06, 77-83, A07-A09, 85-87, A10-A15, 90-95, A16 (PB0), 102, A17 (PB4), 108, A18 (PB5) 109 D0-D2, 68-70, D3-D7 72-76 READ# 121 WRITE# 120 RAMSEL# PB3) 107 ROMSEL# (PB2) ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-2. CX06827 ACF Pin Signal Definitions for Parallel Interface (PARIF = High) Label Pin Telephone Line/Telephone/Audio Interface Signals and Reference Voltage (Continued) ASPKR 136 LINE_IN 143 MIC_BIAS 144 M_RELAYA 8 M_ACT90 12 DLPBK_BAR 13 Telephone Line/Analog Cellular Phone/GSM Phone Interface Select ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-2. CX06827 ACF Pin Signal Definitions for Parallel Interface (PARIF = High) Label Pin Telephone Interface (LINE/CELL = High and LINE/GSM = High) VOICE#/TXPAD# (PE1) HS_LCS (PE4) GSM Cellular Phone Interface (LINE/CELL = High and LINE/GSM = Low) ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-2. CX06827 ACF Pin Signal Definitions for Parallel Interface (PARIF = High) Label Pin LPO 63 PC3 127 PC7 133 PD3 20 HCS# (PD4) 21 HRD# (PD6) 23 HWT# (PD5) 22 HINT (PB7) 112 HA0-HA2 17-19 (PD0-PD2) HD0-HD7 123-124, (PC0-PC7) 126-128, ...
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... SC56D Single Chip ACF Modem Data Sheet Figure 3-3. CX06827 ACF Hardware Signals for Serial Interface (PARIF = Low) 116 CRYSTAL XTLI 117 CIRCUIT XTLO 115 CLKIN NC 67 CLKOUT NC 119 NMIP +3.3V 16 PARIF (MK0) 54 NOXYCK 58 XTCLK# (P_GP01) 57 RDCLK# (P_PA07) 60 TDCLK# (P_PA03) 35 TXD# (PA2) 39 RXD# (PA6) ...
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... SC56D Single Chip ACF Modem Data Sheet Figure 3-4. CX06827 ACF 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) 3-12 CX06827 Serial Interface (PARIF Pin = Low) Conexant 101098_006 101098E ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-3. CX06827 ACF 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) Pin Signal Label I/O 1 DVDD P +3.3V 2 CNTLSIN I ACF: SR1IO 3 MCLKIN I ACF: MCLKOUT through 33 ohms 4 TXSIN I ACF: SR4OUT 5 SCLK O ACF: IA1CLK through 33 ohms 6 RXOUT ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-3. CX06827 ACF 144-Pin TQFP Pin Signals for Serial Interface (PARIF = Low) (Continued) Pin Signal Label I/O 49 SR4OUT O ACF: TXSIN (P_PX00) 50 SA1CLK I ACF: STROBE through 33 ohms (P_PX02) 51 IA1CLK I ACF: SCLK through 33 ohms (P_PX03) 52 SR4IN I ACF: RXOUT ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-4. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin XTLI, 116, XTLO 117 CLKIN 115 CLKOUT 67 NOXYCK 54 PARIF 16 NMI# 119 RES1# 41 RES2# 142 VGG 66 VDD 29, 48, 59, 64, 66, 84, 103, 111, ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-4. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin A00-A06, 77-83, A07-A09, 85-87, A10-A15, 90-95, A16 (PB0), 102, A17 (PB4), 108, A18 (PB5) 109 D0-D2, 68-70, D3-D7 72-76 READ# 121 WRITE# 120 RAMSEL# PB3) 107 ROMSEL# (PB2) ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-4. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin Telephone Line/Telephone/Audio Interface Signals and Reference Voltage (Continued) ASPKR 136 LINE_IN 143 MIC_BIAS 144 M_RELAYA 8 M_ACT90 12 DLPBK_BAR 13 ACF Interconnect and Optional CX20437 VC Interface ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-4. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin LPO 63 PC3 127 PC7 133 PD3 20 PE5 30 XTCLK# (P_GP01) 58 RDCLK# (P_PA07) 57 TDCLK# (P_PA03) 60 TXD# (PA2) 35 RXD# (PA6) 39 CTS# (PC1) 124 DSR# (PC0) ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-4. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin V.24 (EIA/TIA-232-E) DTE Serial Interface (Continued) RTS# (PD6) 23 AAIND# (PC4) 128 DTRIND# (PD0) 17 Telephone Line/Analog Cellular Phone Interface Select LINE/GSM (PA5) LINE/CELL (PE7) ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-4. CX06827 ACF Pin Signal Definitions for Serial Interface (PARIF = Low) Label Pin BD2CLK 65 DV1TP 114 PHS2 122 TESTP 113 XXCLK 55 P_PA00 61 PA1 34 PA3 36 PA4 37 PA5 35 PB1 104 PB6 110 PC6 132 PD1 18 PD2 ...
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... GND Ground Notes: 1. See DC characteristics in Table 3-6. 2. I/O Type corresponds to the device Pad Type. The I/O column in signal interface tables refers to signal I/O direction used in the application. Table 3-6. CX06827 ACF DC Electrical Characteristics Parameter Symbol Input Voltage Low VIL +5V tolerant +5V tolerant hysteresis Input Voltage High VIH ...
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SC56D Single Chip ACF Modem Data Sheet 3.2 CX20437 VC Hardware Pins and Signals (S Model) 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, ...
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... SC56D Single Chip ACF Modem Data Sheet Figure 3-5. CX20437 VC Hardware Interface Signals IASLEEP MCLKOUT SR2CLK CX06827 SA2CLK ACF SR3OUT SR3IN SR2IO RESET CIRCUIT +3.3V VAA (+3.3V AGND Figure 3-6. CX20437 VC 32-Pin TQFP Pin Signals 101098E M_DIG_SPEAKER 14 SLEEP 19 M_CLKIN M_MIC_IN 21 M_SCK M_SPKR_OUT 23 M_STROBE 20 M_TXSIN ...
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SC56D Single Chip ACF Modem Data Sheet Table 3-7. CX20437 VC 32-Pin TQFP Pin Signals Pin ...
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SC56D Single Chip ACF Modem Data Sheet Table 3-8. CX20437 VC Pin Signal Definitions Label Pin I/O VDD 17 MAVDD 5 P VSS 28 G MAVSS 6 G VSUB 27 G POR 4 I SET3V_BAR2 26 I SLEEP ...
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SC56D Single Chip ACF Modem Data Sheet Table 3-7. CX20437 VC Pin Signal Definitions (Continued) Label Pin I/O M_DIG_SPEAKER 2 O M_LINE_OUTM 10 O M_RELAYA 24 O M_RELAYB 16 O M_MIC_BIAS 15 O M_ACT90 29 I M_1BIT_OUT 30 O D_LPBK_BAR ...
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SC56D Single Chip ACF Modem Data Sheet Table 3-9. CX20437 VC DC Electrical Characteristics Parameter Symbol Input Voltage Low V IN Input Voltage Low V IL Input Voltage High V IH Output Voltage Low V OL Output Voltage High V ...
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SC56D Single Chip ACF Modem Data Sheet 3.3 Electrical and Environmental Specifications 3.4 Operating Conditions, Absolute Maximum Ratings, and Power Requirements The operating conditions are specified in Table 3-11. The absolute maximum ratings are listed in Table 3-12. The current ...
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... SC56D Single Chip ACF Modem Data Sheet Table 3-13. Current and Power Requirements Mode CX06827 SCFACF Normal Mode: Off-hook, normal data connection Normal Mode: On-hook, idle, waiting for ring Sleep Mode CX20437 VC (Optional) Normal Mode Notes: 1. Operating voltage: VDD = +3.3V ± 0.3V. 2. Test conditions: VDD = +3.3V for typical values; VDD = +3.6V for maximum values. ...
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SC56D Single Chip ACF Modem Data Sheet 3.5 Interface and Timing Waveforms 3.5.1 External Memory Bus Timing The external memory bus timing is listed in Table 3-14 and illustrated in Figure 3-7. Table 3-14. Timing - External Memory Bus Symbol ...
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SC56D Single Chip ACF Modem Data Sheet Figure 3-7. Waveforms - External Memory Bus C2* A[18:0] ES#** READ# D[7: Internal Phase 2 clock. ** ES# = RAMSEL# or ROMSEL#. C2* A[18:0] ES#** WRITE# D[7: ...
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SC56D Single Chip ACF Modem Data Sheet 3.5.2 Parallel Host Bus Timing The parallel host bus timing is listed in Table 3-15 and illustrated in Figure 3-8. Table 3-15. Timing - Parallel Host Bus Symbol Parameter t AS Address Setup ...
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SC56D Single Chip ACF Modem Data Sheet Figure 3-8. Waveforms - Parallel Host Bus HA[2-0] HCS# HRD# HWT# HD[7-0] HA[2-0] HCS# HRD# HWT# HD[7-0] 101098E DRH a. ...
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SC56D Single Chip ACF Modem Data Sheet 3.5.3 Serial DTE Interface The serial DTE interface waveforms for 4800 and 9600 bps are illustrated in Figure 3-9. Figure 3-9. Waveforms - Serial DTE Interface TXCLK 4800 BPS TXD 4800 BPS TXCLK ...
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SC56D Single Chip ACF Modem Data Sheet 3.6 Crystal Specifications Crystal specifications are listed in Table 3-16. Table 3-16. Crystal Specifications Frequency Calibration tolerance including effects due to temperature and aging Oscillation mode Calibration mode Load capacitance Shunt ...
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SC56D Single Chip ACF Modem Data Sheet 3-36 This page is intentionally blank. Conexant 101098E ...
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SC56D Single Chip ACF Modem Data Sheet 4. Package Dimensions The 144-pin TQFP package dimensions are shown in Figure 4-1. The 32-pin TQFP package dimensions are shown in Figure 4-2. Figure 4-1. Package Dimensions - 144-Pin TQFP PIN 1 REF ...
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SC56D Single Chip ACF Modem Data Sheet Figure 4-2. Package Dimensions - 32-pin TQFP PIN 1 REF DETAIL A 4-2 D1 DETAIL A Dim. Min 0.05 ...
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SC56D Single Chip ACF Modem Data Sheet 5. 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 ...
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SC56D Single Chip ACF Modem Data Sheet Table 5-1. Parallel Interface Registers Register Register No. Name 7 Scratch Register (SCR) 6 Modem Status Register (MSR) Data Carrier 5 Line Status Register (LSR) 4 Modem Control Register (MCR) 3 Line Control ...
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SC56D Single Chip ACF Modem 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 5-2). ...
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SC56D Single Chip ACF Modem Data Sheet 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 ...
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SC56D Single Chip ACF Modem 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 ...
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SC56D Single Chip ACF Modem 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 This bit must be set ...
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SC56D Single Chip ACF Modem Data Sheet 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 Always 0. Bit 4 When this bit is ...
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SC56D Single Chip ACF Modem Data Sheet Bit 5 This bit, when set, indicates that the TX Buffer is empty and the modem can accept a new character for transmission. In addition, this bit causes the modem to issue an ...
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SC56D Single Chip ACF Modem Data Sheet 5.2.7 MSR - Modem Status Register (Addr = 6) The Modem Status Register (MSR) reports current state and change information of the modem. Bits 4-7 supply current state and bits 0-3 supply change ...
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SC56D Single Chip ACF Modem Data Sheet 5.2.10 Divisor Registers (Addr = 0 and 1, DLAB = 1) The Divisor Latch LS (least significant byte) and Divisor Latch MS (most significant byte) are two read-write registers at locations 0 and ...
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SC56D Single Chip ACF Modem Data Sheet 5.3.2 Receiver Character Timeout Interrupts When the FIFO mode is enabled (FCR0 = 1) and receiver interrupt (Receiver Data Available) is enabled (IER0 = 1), receiver character timeout interrupt operation is as follows: ...
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SC56D Single Chip ACF Modem Data Sheet 5-12 This page is intentionally blank. Conexant 101098E ...
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NOTES ...
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General Information: U.S. and Canada: (800) 854-8099 International: (949) 483-6996 Headquarters – Newport Beach 4311 Jamboree Rd. Newport Beach, CA 92660-3007 ...