 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
RC56LD Datasheet(PDF) 9 Page - Synaptics Incorporated. |
|
|
|||||||||||||||||||||||||||||
RC56LD Datasheet(HTML) 9 Page - Synaptics Incorporated. |
|
|
9 / 22 page  ,QWHJUDWHG9 .IOH[99ELV0RGHP'HYLFH6HWV 5&/'5&/'DQG5&/' MD213 Conexant 9 The MCUP PC Card interface features include: • PC Card interface logic and memory − Internal 512-byte Card Information Structure (CIS) provides the tuple information needed to define the PC Card functionality. − CIS Table is configurable from ROM/flash memory (default) or from NVRAM (option) − Address decode logic • Modem Function − Decoding for standard COM ports in Overlapping I/O Address Mode − Independent I/O Address Mode support − Power-down mode control − Digital speaker pass-through − Supports two ring handling methods − Ring Indicate pass-through to Status Change − Six 8-bit Modem Function Card Configuration Registers Configuration Option Register (full support) Configuration and Status Register (full support) Pin Replacement Register (CREADY and RREADY) Extended Status Register (RIEvt and RIEnab) I/O Base Register 0 I/O Base Register 1 • Optional User-defined Function 2 − Reset and chip select control − Power-down mode control − 16-bit data transfer control − Disable EEPROM control − Interrupt request pass through − Four 8-bit Card Configuration Registers Configuration Option Register (full support) Configuration and Status Register (full support) I/O Base Register 0 I/O Base Register 1 RCDSVD Speech Codec Processor (SCP) (Optional) The RCDSVD SCP (R6715-14), required for on-board DSVD operation, is packaged in a 100-pin PQFP. The 56.448 MHz crystal frequency is supplied by the MDP XCLK output. MCU Firmware MCU firmware performs processing of general modem control, command sets, data modem, error correction and data compression (ECC), fax class 1, fax class 2, DSVD, AudioSpan, voice/audio/TAM/speakerphone, W-class, V.80, analog cellular, GSM, and serial DTE/parallel host/PC Card interface functions according to modem models (Table 1). Configurations of the modem firmware are provided to support parallel host bus interface (MCU only), serial DTE interface (MCU only) or PC Card interface (MCUP only) operation. The modem firmware is provided in object code form for the OEM to program into external ROM/flash ROM. The modem firmware may also be provided in source code form under a source code addendum license agreement. Supported Interfaces The major hardware signal interfaces of the modem device set are identified in Figure 1 (serial DTE interface), Figure 2 (parallel host interface), and Figure 3 (PC Card interface). Serial DTE Interface and Indicator Outputs (MCU Only) A V.24/EIA/TIA-232-E logic-compatible serial DTE interface is selected when the Parallel/Serial Interface (PARIF) input is low. One serial transmit data input line (~TXD), one serial receive data output line (~RXD), three synchronous clocks (~XTCLK, ~RXCLK, and ~TXCLK), four control input lines (~DTR, ~RTS, ~RDL, and ~AL), and six status output lines (~CTS, ~DSR, ~RLSD, ~TM, ~RI, and ~DRSOUT) are supported. Three dedicated indicator output lines (~DTRIND, ~TMIND, and ~AAIND) are also provided. Parallel Host Bus Interface (MCU Only) A 16550A UART-compatible parallel host bus interface is selected when the Parallel/Serial Interface (PARIF) input is high. The interface signals are: eight bidirectional data lines (HD0-HD7), three address input lines (HA0-HA2), three control input lines (~HCS, ~HRD, and ~HWT), one status output line (HINT), and a reset input line (-RESET). In addition, a 512-byte fax data buffer is used to provide reliable performance in a multi-tasking environment. PC Card Interface (MCUP Only) The built-in PC Card interface and CIS memory allows the MCUP to connect directly to the PC Card connector without requiring external PICA and CIS devices. Interface to two functions, the modem and a user-defined Function 2, are supported. NVRAM (Serial EEPROM) Interface A 2-line serial interface to non-volatile RAM (NVRAM, i.e., serial EEPROM) is supported. The interface signals are a bidirectional data line (NVMDATA) and a clock output line (NVMCLK). Data stored in NVRAM can take precedence over the factory default settings. A 256-byte NVRAM can store up to two user-selectable configurations and up to four 32-digit dial strings for PSTN/GSTN or GSM operation. When the MCUP is used, a 2048-byte NVRAM can also store the 512-byte CIS table (optional). External Bus Interface The non-multiplexed external bus supports eight bidirectional data lines (D0-D7) and 19 address output lines (A0-A18). Read enable output (~READ), write enable output (~WRITE), and four chip select output (~ROMSEL, ~RAMSEL, ~DPSEL, and ~SCPSEL) lines are also supported. Address line A18 and ~SCPSEL share the same pin; A18 is used when a 4M ROM is installed for GSM operation, and ~SVDSEL is used when an RCDSVD SCP is installed for on-board DSVD operation. |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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
