Lsi logic santricity download

Its lower-end sibling, the , has four less host ports and 2GB less cache memory. On the higher end, LSI rolled out the Engenio , which is a scaled-down, lower-cost version of the high-end with less performance and cache. Here are the latest Insider stories. More Insider Sign Out. Sign In Register. Sign Out Sign In Register. Latest Insider. In the time for transmitting a single bit using bps, two bits may be transmitted if 19, bps is used.

The adaptive baud rate negotiation mechanism waits for a start bit falling edge on the serial input pin and then starts the timer. At every subsequent rising edge of the serial data, the timer value is captured and saved. When the timer expires, the last captured value will indicate the duration of the serial character from the start bit to the last zero-to-one transition. If the sender's baud rate is at and the receiver's baud rate is at , then for every one bit transmitted by the sender, the receiver will receive two bits.

For a break key 0x03H , the sent bits may be as shown in FIG. The least significant bits are transferred first. The received bits may be as shown in FIG. If the sender's baud rate is and the receiver's baud rate is , then for every two bits transmitted by the sender, the receiver will receive one bit.

For a break key 0x03H , the sent pattern of bits is as shown in FIG. The received pattern of bits may be as shown in FIG.

Since the first four bits might result in an ambiguous state at the receiver due to the two pairs 0 and 1 and 1 and 0 , the interpretation may be built into the code so as to interpret 0-and-1 as a 0 zero and to interpret 1-and-0 as a 1 one.

Hence, the normalized pattern at the receiver may be as shown in FIG. Based on the above patterns of bits, a look-up table may be provided to determine a baud rate of a receiver based on the baud rate of the sender.

The look-up table contains a maximum timer value that is measured for a particular baud rate. The values are chosen so as to represent a time interval of four data bit time plus the start bit time.

The result may be erroneous if the calculation is based on one single byte, because a single byte may not contain the entire string of data intended to be transmitted by the sender.

The process begins and presents a boot menu step The user selects the serial console mode option in the boot menu step and the process presents the serial console mode menu step Then, the user sets the serial port parameters using the serial console mode menu step Thereafter, the process initializes the serial port with the newly selected parameters step and ends.

Turning now to FIG. The process begins and establishes a connection between the host and the storage controller step The process then authenticates the user step A determination is made as to whether the user selects to set parameters step If the user selects to set parameters, the process receives the parameters from the host step The parameters may be received from the host as user input or as a set of default parameters.

For example, the host may provide a set of default parameters after a reboot sequence following a NVSRAM code download sequence. Thereafter, the process initializes the serial port using the parameters received from the host step If the user does not select to set parameters in step , a determination is made as to whether the user wishes to receive parameters from the controller step If the user wishes to receive parameters from the storage controller at the host for synchronization, the process sends the parameters from the controller to the host step If the user does not wish to receive parameters from the controller at the host or after initializing the serial port in step or after sending the parameters from the controller to the host in step , a determination is made as to whether an exit condition exists.

An exit condition may exist, for example, if the user closes the administrative management window interface software at the host or disconnects from the controller. If an exit condition exists, the process ends. Otherwise, the process returns to step to determine whether the user selects to set parameters. With reference now to FIG. The process begins and initializes a timer step A determination is made as to whether a start bit is received step If a start bit is not received, a determination is made as to whether a timeout occurs step If a timeout does not occur, the process returns to step to determine whether a start bit is received.

Steps and repeat until a start bit is received or a timeout occurs. If a start bit is received in step , the process starts the timer step and a determination is made as to whether a stop bit is received step If a stop bit is not received, a determination is made as to whether a timeout occurs step If a timeout does not occur, the process returns to step to determine whether a stop bit is received.

Steps and repeat until a stop bit is received or a timeout occurs. If a stop bit is received in step , the process captures the timer value step and a determination is made as to whether the timer is expired step If the timer is expired in step , the process stops the timer step and performs a look-up of the baud rate step Thereafter, the process sets the baud rate step and ends.

Thus, the present invention solves the disadvantages of the prior art by providing mechanisms for manually setting serial port parameters on a storage controller. An operator may set serial port parameters using a boot operations menu or through interface software at a host computer. The present invention also provides adaptive baud rate negotiation mechanism for automatically setting the baud rate for a serial port. These mechanisms may be used separately or together in a storage controller, such as a RAID controller.

An operator may then quickly and conveniently perform serial port communications using an external device for maintenance or other operations. It is important to note that while the present invention has been described in the context of a fully functioning data processing system, those of ordinary skill in the art will appreciate that the processes of the present invention are capable of being distributed in the form of a computer readable medium of instructions and a variety of forms and that the present invention applies equally regardless of the particular type of signal bearing media actually used to carry out the distribution.

Examples of computer readable media include recordable-type media, such as a floppy disk, a hard disk drive, a RAM, CD-ROMs, DVD-ROMs, and transmission-type media, such as digital and analog communications links, wired or wireless communications links using transmission forms, such as, for example, radio frequency and light wave transmissions.

The computer readable media may take the form of coded formats that are decoded for actual use in a particular data processing system. A method for serial port initialization in a storage controller, wherein the storage controller includes a serial port for connection to an external device, the method comprising: receiving at least one serial port parameter value for a set of serial port parameters, wherein the at least one serial port parameter value is selected by a user; and.

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