Toshiba AS311 user manual Receiving and transmitting data area

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4. Register Configuration

4.2.4Receiving and transmitting data area

The receiving and transmitting data area is provided to exchange the communication characters between T3 and AS311. The address ranges in the AS311 buffer memory are as follows.

Address

Word data

128Channel 1

reading (receiving)

data area

576Channel 1

writing (transmitting)

data area

1024

Channel 2

 

reading (receiving)

 

data area

1472

 

Channel 2

 

writing (transmitting)

 

data area

448words

448words

448words

448words

When AS311 receives a message (one set of transmission characters), AS311 sets the characters into the receiving data area starting with the address 128 or 1024. Then T3 can read these characters from the receiving data area by using READ instruction.

When T3 attempts to send a message via AS311, T3 writes the characters into the transmitting data area starting with the address 576 or 1472 by using WRITE instruction, and instructs AS311 to start transmitting. AS311 recognizes from the character stored in the starting address (576 or 1472) to the trailing code character as the one set of transmitting message.

Refer to section 5 for message receiving/transmitting procedure.

36 ASCII Interface Module (AS311)

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Contents AS311 Important Information Safety Precautions Symbols Used In This ManualInside This Manual About This ManualAbout This Manual Related Manuals TerminologyContents Contents Ascii Interface Module AS311 Section AS311 Overview AS311 Overview IntroductionAS311 functions Read WriteExternal features AS311Status LEDs SW1  channel 1 transmission parameter setting switchesSW2  channel 2 transmission parameter setting switches No.7RS-232C/RS-422 selection switches for channel RSW1/RSW2  Optional rotary switchesHardware reset switch Channel 1 and channel 2 serial portsAscii Interface Module AS311 Section Specifications Functional specifications SpecificationsGeneral specifications Transmission specifications Ascii Interface Module AS311 Section Cable Connections Cable Connections RS-232C connectionTxda Rxda Txdb Rxdb Rtsa Ctsa Rtsb Ctsb RS-422 connectionAscii Interface Module AS311 Section Register Configuration Register Configuration I/O allocation and I/O registersD C B a 9 8 7 6 5 4 3 2 1 No use AS311 buffer memory Memory mapBuffer memory access Read instruction FUN237Write instruction FUN238 Parameter area RSW1/2 information Status and command 0Status 1 SW1 information SW2 informationCommand 1 CH1 receive error 16 CH2 receive errorCH1 transmit error 17 CH2 transmit error CH1 channel status 18 CH2 channel statusCH1 receive length 19 CH2 receive length CH1 trailing code 24 CH2 trailing codeCH1 time-out check 25 CH2 time-out check Receiving and transmitting data area Section Operation Procedure Operation Procedure Transmission message formatReceived message read sequence Flag control timing AS311 sets Receive complete to on2 T3 sample program for message receiving Operation Procedure Operation Procedure Write sequence for message transmitting Flag control timing T3 sets Transmit start to on2 T3 sample program for message transmitting Operation Procedure Operation Procedure Checking the AS311 operation status Resetting the AS311 by software Setting the trailing code Setting the time-out check time Section RAS Information RAS Information LED indicationBuffer memory information Module statusSwitch setting status Error information for data receiving Error information for data transmitting Trouble shooting Ascii Interface Module AS311 Appendix Function Specification of the Read instructionAppendix OperandH0A Specification of the Write instruction RW010 XW020 D0100 Toshiba Corporation

AS311 specifications

The Toshiba AS311 is a well-rounded notebook designed to cater to the needs of students, professionals, and casual users alike. With a focus on affordability and reliability, this laptop strikes a balance between performance and efficiency, making it an appealing choice for those seeking a dependable computing solution.

One of the main features of the Toshiba AS311 is its lightweight design. Weighing approximately 2.5 kg, this laptop is easily portable, allowing users to carry it to classes, meetings, or coffee shops without hassle. The sleek profile is complemented by a durable chassis that can withstand the rigors of daily use.

At the heart of the AS311 is a powerful processor that ensures smooth performance across a variety of applications. Typically equipped with Intel's Pentium or Core series processors, the AS311 provides adequate computing power for tasks such as word processing, web browsing, and light multimedia consumption. Paired with sufficient RAM, users can run multiple applications simultaneously without noticeable lag.

The display of the Toshiba AS311 is another notable feature. With a 15.6-inch HD screen, users can enjoy clear visuals whether they are streaming videos or working on projects. The display's anti-glare technology reduces eye strain, making it suitable for long usage sessions, whether indoors or outdoors.

Connectivity is crucial in today's digital landscape, and the AS311 doesn't disappoint. It offers multiple USB ports, an HDMI output, and an SD card reader, allowing users to connect various peripherals and external devices seamlessly. Additionally, the inclusion of Wi-Fi and Bluetooth capabilities ensures that users can stay connected to the internet and other devices wirelessly.

Battery life is often a concern for laptop users, and the Toshiba AS311 addresses this with a reasonably long-lasting battery. With a lifespan that can extend throughout a typical work or school day, users can go about their activities without constantly searching for power outlets.

From its practical design to its robust performance capabilities, the Toshiba AS311 is a well-crafted notebook that meets the diverse needs of users. Whether for educational pursuits, professional tasks, or entertainment, the AS311 provides a solid computing experience, proving to be a reliable companion for those on the go. With its array of features and user-friendly design, it's a compelling option for individuals looking for an affordable yet capable laptop.
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