Showing papers on "Serial port published in 2004"

Disk drive and method for data transfer initiated by optional disk-drive commands on a serial interface that only supports standard disk-drive commands

Abstract: A disk drive and method are disclosed for data transfer initiated by nonstandard disk-drive commands on a serial interface that only supports standard disk-drive commands. In the method, a nonstandard disk-drive command for data transfer is embedded within a first data block accessible using a first standard disk-drive command. The first standard disk-drive command is transmitted through the serial interface causing the first data block to be transferred from the host computer to the disk control system. The embedded command is extracted from the transferred first data block and provided to the disk control system. A status response is transmitted to the host computer based on the extracted command. At least one additional standard disk-drive command is transmitted through the serial interface to the disk control system for transferring the identified data between the host computer and the disk drive.

Serial Interface to Flash-Memory Chip Using PCI-Express-Like Packets and Packed Data for Partial-Page Writes

Abstract: A serial flash-memory chip has a serial-bus interface to an external controller. A flash-memory block in the serial flash-memory chip can be read by the external controller sending a read-request packet over the serial bus to the serial flash-memory chip, which reads the flash memory and sends the data back in a data-payload field in a completion packet. Data in a write-request packet is written to the flash memory, and a message packet sent back over the serial bus. The serial bus can be a Peripheral Component Interconnect (PCI) Express bus with bi-directional pairs of differential lines. Packets have modified-PCI-Express headers that define the packet type and data-payload length. Vendor-defined packets can send flash commands such as reset, erase, or responses after operations such as program or erase. A serial engine and microcontroller or state machine are on the serial flash-memory chip.

Serial digital interface for wireless network radios and baseband integrated circuits

Abstract: A wireless radio for wireless networking communication systems includes a radio frequency (RF) transceiver integrated circuit (IC) and a baseband digital signal processing (DSP) IC. A bidirectional serial digital interface couples data between the RF transceiver IC and the DSP IC to provide a high data rate and low noise. The bidirectional serial digital interface includes a first serial data connection and a second serial data connection. In one embodiment, the RF transceiver IC has a single bit sigma delta A/D modulator to convert an analog signal into a first serial digital bit stream for communication over the first serial data connection. In one embodiment, the DSP IC has a single bit sigma delta digital modulator to generate a second serial digital bit stream for communication over the second serial data connection.

Radio signal relaying apparatus

Abstract: A radio signal relaying device has a PDA and a wireless modulating module connected to the PDA. The PDA is provided with multiple ports of different specifications such as a memory card slot, a USB interface or a serial port. The wireless modulating module is selectively linked to one of the ports to modulate music files stored in the PDA. The modulated sound files can be transmitted in the form of radio waves and then be demodulated and played by any radio receiving device.

System and method for using a wireless enabled portable computer system as a wireless modem

Abstract: A method and system for using a wireless enabled portable computer system as a wireless modem. The portable computer system may be a personal digital assistant (PDA) having an internal wireless modem. The internal wireless modem, e.g., GSM radio, contains a communication port (port2) that communicates with a processor of the portable computer system. The portable computer system also contains another communication port (port1) that is externally available for connection to a second computer system. A software bridge is provided that copies commands and/or data from the port1 over to the port2 and vice-versa. The software bridge allows the second computer system to directly use the internal wireless modem of the portable computer system when the portable computer system is connected to the second computer. The connection to the second computer system can be made by a wired connection (e.g., serial interface, RS232) or by a wireless connection, e.g., Bluetooth or infra-red communication. The port1 and the port2 can be serial communication ports which may be UART compliant. The PDA thus extends wireless functionality to a second computer system (e.g., a notebook) using conventional connection mechanisms for communicating with the second computer system.

Serial/parallel data transformer module and related computer system

Abstract: A serial/parallel data transformer module has a first serial/parallel data transformer having a parallel port and a serial port, a second serial/parallel data transformer having a parallel port and a serial port, and a control unit for selectively connecting the parallel ports or the serial ports of the first serial/parallel data transformer and the second serial/parallel data transformer.

Voltage set point control scheme

Abstract: A system and method is provided for determining a voltage output of a programmable power converter based on programming voltage data received from one of a variety of alternate sources. Specifically, in one embodiment of the present invention, a control unit is adapted to monitor a digital data serial interface, a digital data parallel interface, and an analog data interface to determine whether programming voltage data has been received. If programming voltage data has been received, the data is used to determine an output voltage for the programmable power converter. If more than one set of programming voltage data has been received, a determination is made as to which set of data takes priority. The selected set of data is then used to determine an output voltage for the programmable power converter.

Switching device for RS-232 serial port and USB serial port

Abstract: A switching device for RS-232 serial port and USB serial port is adapted to simultaneously provide a RS-232 serial port and a USB serial port for a micro-processor with a single USART. The switching device can automatically switch to select either of the RS-232 serial port or the USB serial port as a main interface for communicating with other external computer facilities and related peripheries. When one of the serial ports is selected as the main communication interface to communicate with one of external computers, the other one serial port thereof still can transmit signals from the micro-processor to another computer through its transmitting data pin (TXD).

Efficient service registration for legacy applications in a bluetooth environment

Abstract: A method and device for providing a service record for an application (e.g., a legacy application) running on a virtual serial port of a wireless transceiver device, such as a Bluetooth-enabled device. The virtual serial port emulates a serial connection (e.g., a serial cable) for the application. The virtual serial port for the application is opened by a virtual serial port driver. In accordance with the present embodiment of the present invention, the virtual serial port driver also provides the service name of the application. The virtual serial port driver can derive the service name from the name of the application, or the virtual serial port driver can use a default name. Thus, the virtual serial port driver performs the additional function of automatically providing a service name for a application, thereby introducing a standard, efficient and user-friendly approach for providing a readily-identifiable service name for a legacy application.

Physical layer device having an analog serdes pass through mode

Abstract: A physical layer device (PLD) includes a first serializer-deserializer (SERDES) device and a second SERDES device. Each SERDES device includes an analog portion with a serial port that is configured to communicate serial data with various network devices, and a digital portion that is configured to communicate parallel data with other various network devices. The PLD includes a first signal path that is configured to route serial data signals between the analog portions of the SERDES devices, bypassing the digital portions of the SERDES devices. Therefore, the SERDES devices can directly communicate serial data without performing parallel data conversion. A second signal path is configured to route recovered clock and data signals between the analog portions of the SERDES devices, but still bypassing the digital portions of the SERDES devices. The recovered clock and data signals are then regenerated before being transmitted over a network device.

Self powered serial-to-serial or USB-to-serial cable with loopback and isolation

Abstract: The cable for a medical device is an optically isolated serial transmission cable, used to connect a base device with a serial port, or the like, to a medical device. In an alternate embodiment of the invention, the invention enables auto detection of the cable. The base device is used to power the cable electronics. In another embodiment of the present invention, the interface cable is also supported by graphical and text message display that assists users in connecting the cable to both the medical device and a base device.

Smart card that can be configured for debugging and software development using secondary communication port

Abstract: An integrated circuit for use with smart card and method are operative in both an ISO mode in accordance with the International Standards Organization 7816 (ISO 7816) protocol, and a non-ISO mode in accordance with a non-ISO protocol The dual-mode integrated circuit includes a microprocessor and switching block An external interface is connected to the switching block and comprises an ISO port operative for communicating in an ISO mode when the ISO mode is detected and a non-ISO port operative for communicating in a non-ISO mode when a non-ISO mode is detected The ISO port is configured to allow debugging and/or software development through a serial interface in a non-ISO mode and the non-ISO port is configured to allow debugging and/or software development through the non-ISO port in an ISO mode

Communication device having asynchronous data tranmission via symmetrical serial interface

Abstract: A communication device having asynchronous data transmission via a symmetrical, serial interface is described, having a microcontroller that exhibits a CAN controller and an asynchronous serial interface unit for receiving, processing, and outputting data; an asynchronous serial interface driver device for providing an asymmetrical data exchange with the microcontroller via the asynchronous serial interface unit, an asynchronous serial interface receiving line, an asynchronous serial interface transmitting line, and an external asynchronous serial interface port; a CAN driver device for providing a symmetrical data exchange with the microcontroller via the CAN controller, a CAN receiving line, a CAN transmitting line, and two external CAN ports; a connecting device between the CAN receiving line and the asynchronous serial interface receiving line, as well as between the CAN transmitting line and the asynchronous serial interface transmitting line for providing a symmetrical data exchange with the microcontroller via the asynchronous serial interface unit, the CAN driver device and the external CAN ports.

Virtual serial port and protocol for use in serial-over-LAN communication

Abstract: A method and system of conveying data to a remote computer, which may act as a management console. A virtual communications port is provided to a central processing unit. The virtual communications port is provided using a device distinct from the central processing unit, such as a network controller card with manageability features inborn. The device providing the virtual communications port receives the data written to the virtual communications port. Thereafter, the device transmits the data into a network, addressed for reception by the remote computer. The remote computer may be used as a management console so that keystrokes entered thereupon may be relayed through the virtual communications port to the aforementioned central processing unit.

Methods and systems for providing hardware assisted programming of a programmable logic device in an embedded system

Abstract: A programmable logic device (PLD) in a microprocessor system is programmed with minimal load on system resources. A microprocessor reads programming data from a first memory using a parallel bussed interface and writes the programming data to a programming hardware assist engine using the parallel bussed interface. The programming hardware assist engine directs a portion of the programming data to a specified serial interface signal, and outputs a serial bit stream from the programming hardware assist engine to a serial programming interface of the PLD using the specified serial interface signal.

Serial type interface circuit, power saving method thereof, and device having serial interface

Abstract: A power saving of a serial interface circuit decreases the unnecessary power consumption of a serial interface circuit, while decreasing the return time and expanding the power saving range. Gates are disposed for stopping the clock supply to a digital portion of the interface circuit while maintaining operation of clock sources in the digital portions. Therefore a quick shift to and return from the power save mode by stopping and restarting clocks is implemented, which further decreases power consumption.

In-Circuit Partial Reconfiguration of RocketIO Attributes

Abstract: This application note describes in-circuit partial reconfiguration of RocketIO™ transceiver attributes using the Virtex-II Pro™ internal configuration access port (ICAP). The solution uses a Virtex-II Pro device with an IBM PowerPC™ 405 (PPC405) processor to perform a partial reconfiguration of the pre-emphasis (TX_PREEMPHASIS) and differential swing control (TX_DIFF_CTRL) attributes for RocketIO multi-gigabit transceivers (MGTs). These attributes must be modified to optimize the MGT signal transmission prior to and after a system has been deployed in the field. This solution is also ideal for characterization, calibration, and system testing. The hardware and software elements of this solution can be easily integrated into any Virtex-II Pro design already utilizing the PLB bus structure. This application note uses the reference design accompanying XAPP661, which implements peripherals with a Xilinx Intellectual Property Interface (IPIF) to the PLB bus. A PLB ICAP module is instantiated and controlled through software running on the PPC405 processor. Design modules to facilitate biterror rate tests (BERT) and pseudo-random binary sequence (PRBS) diagnostics are also included. A terminal interface over a serial port connection allows users to set and modify MGT attributes via a command line. Application note XAPP660 documents the partial reconfiguration of MGT attributes using a register interface. This black box approach provides a thin IP software based solution for designers not originally intending to use the PPC405 processor in their designs. This can be a preferred solution for updating the MGT attributes once a slot ID has been sampled, after power has been applied to a board. The application developer can later expand the capabilities of the PPC405 in the design through the IBM CoreConnect™ (PLB, OPB) modular features described in this application note.

USB-based host-to-host networking method

Abstract: The present invention relates to a USB-based host-to-host networking method capable of transferring information between two hosts. Devices for the method comprise: a register, a pair of FIFO control command transmitters and at least one FIFO bulk transmitter. The register is to temporarily store control commands for information transaction and acts as a buffer. The control command transmitters is to connect two serial interface engines interfacing respectively with the USB interface of each host, by which the information transfer control commands can be delivered from either host. The bulk information transmitter connects to the two serial interface engines for bulk transfer so that any host is capable of issuing the information transfer control commands for executing data transaction between hosts. The present invention provides a new design for networking controller connection by reducing the number of control command transmitters needed, and also capable of transferring bulk information between hosts.

Parallel to USB bridge controller

Abstract: A parallel to USB bridge controller includes a USB transceiver for transmitting and receiving on a USB link and a serial interface engine connected to the USB link for converting between USB protocol and serial interface protocol. A memory interface within the controller includes a transmit data register for receiving data from a parallel data link and a receive register for receiving data to be transmitted over the parallel data link. The transmit data register and the receive data register of the memory interface are located within the memory space of a processor connected to the USB serial interface. The memory interface is able to send and receive data between the transmit and receive data registers and an external processor over the parallel data link.

Remote control device

Abstract: A remote control device is described. The remote control device uses a network chip directly mounted on a motherboard of a server computer to remote control the server computer without any additional network card requirement. The remote control device includes a basic input output system (BIOS), a COM port, a baseboard management controller (BMC), and a network chip. The BIOS redirects video data to the COM port and then the same to the BMC. The BMC transforms the video data into network packets according to a Q-Telnet protocol. The BMC recognizes the Q-Telnet protocol and a standard Telnet protocol effectively. Therefore, the network chip uses a UDP 623 port to control the BMC and a TCP 23 port to transmit data and commands using the standard Telnet protocol.

Method and system for configuring high-speed serial links between components of a network device

Abstract: A system for selectively forming high-speed serial connections between various components of a network device that includes a multiplexing switch coupled a GE slot and to the high speed serial interfaces of a PHY and at least two network devices. The switch can be programmed to connect the serial interfaces of the two network modules to provide a high-speed, low-latency serial link between the two network modules. Alternatively, the serial interface of a network module can be connected to the GE slot to provide a high-speed, low-latency serial link between the network module and the GE slot.

Integrated circuit device and signal transmission system

Abstract: Some interface signals are selected from among signals of a plurality of different parallel interfaces, then being multiplexed onto a serial connection. A transmitter of a signal transmission system includes an interface-signal selector IFS, and a transfer programmer TP for issuing a control signal to instruct the selection from among the parallel interfaces. The transfer programmer TP implements the multiplexing of the selected interface signals in such a manner that the specification of the parallel interfaces is satisfied. Also, the transfer programmer TP changes, as occasion requires, the control signal to instruct which interfaces to select. This change allows the interface signals to be multiplexed onto the serial connection while dynamically changing the interface signals to be multiplexed.

Device for transmitting data via the internet

Abstract: A device for transmitting data via the Internet includes: a serial terminal (9) for serial connection of a data acquisition object device; a data transmission terminal (12) for connection with a mobile telephone (5) enabling data transmission; a data acquisition section (13) for acquiring device data from the data acquisition object device by serial communication via the serial terminal; a data transmission section (14) for combining the device data with transmission instruction data so as to create transmission data and transmitting the transmission data via the data transmission terminal; and a control section (15) for causing the data acquisition section to acquire the device data and the data transmission section to transmit the transmission data. The transmission instruction data is data corresponding to an instruction for causing the mobile telephone to transmit the device data to a predetermined server via the Internet. It is possible to easily perform transmission of blood pressure data or the like from a remote place via the Internet.

Serial radio frequency to baseband interface with programmable clock

Abstract: An interface (206) between an RF processing section (202) and a baseband processing section (204) supports general purpose message transmission as well as satellite positioning system signal sample transmission between the RF processing section (202) and the baseband processing section (204). The interface includes a bi-directional message serial interface (208) and a data serial interface (210). The complexity of the data serial interface may be minimized by using a single data bit signal line in the data serial interface.

System and method for data transmission

Abstract: Method and system for a power optimal coding scheme used in data transmission. The coding scheme provides for the transmission and reception of asynchronous data using a first in first out driven serial port. In one embodiment of the present invention, preamble and synchronization word patterns are selected such that the start bit of the first byte of data that follows the synchronization word synchronizes with the start bit clocking signal of the baseband receiving serial port. Thereafter, the data stream will be synchronized with the serial port.

System for interfacing media access control module to small form factor pluggable module

Abstract: A communication system includes a link module having a first serial interface for interfacing to a serial link. The link module also including a second serial interface. The system also includes a Media Access Control (MAC) module including a parallel interface. The system also includes a converter module, coupled between the parallel interface and the second serial interface, configured to convert symbols, transferred between the parallel interface and the second serial interface, between a parallel format at the parallel interface and a serial format at the serial interface.

Rapid transport service in a network to peripheral device servers

Abstract: A low latency peripheral device sharing system has a host computer with an operating system, a kernel memory buffer, applications, device specific drivers, and a peripheral server driver. The server driver intercepts function calls invoking the local serial ports, and passes standard serial data from the application to a local area network. A device server on the local area network reads the data using a hybrid read block (semi-blocking read), and writes the data to the FIFO registers of the serial device and the remaining data to a queue for the serial device. Finally, the device server times the serial data and returns an intercharacter interval timer flag to the host computer to terminate a read operation.

Method and system of communication between a master device and a slave device

Abstract: A system for reducing power consumption in a portable electronic device comprises a master device coupled to a slave device via a serial interface. The slave device is configurable by the master device to operate in multiple modes wherein each mode is associated with a command length that differs between modes.