Java User’s Guide

4.2 Interfaces

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4.2Interfaces

4.2.1ASC0 - Serial Device

ASC0, an Asynchronous Serial Controller, is a 9-wire serial interface. It is described in [2]. With- out a running Java application the module can be controlled by sending AT commands over ASC0. Furthermore, ASC0 is designed for transferring files from the development PC to the module. When a Java application is started, ASC0 can be used as an RS-232 port or/and Sys- tem.out. Refer to [3] for details.

4.2.2General Purpose I/O

There are ten I/O pins that can be configured for general purpose I/O. One pin can be config- ured as a pulse counter. All lines can be accessed under Java by AT commands or a Java API. See [1] and [2] for information about usage and startup behavior.

4.2.3DAC/ADC

There are two analogue input lines and one analogue output line. They are accessed by AT commands. See [1] and [2] for details.

The TC65 Terminal does not feature DAC interface.

4.2.4ASC1

ASC1 is the second serial interface on the module. This is a 4-pin interface (RX, TX, RTS, CTS). It can be used as a second AT interface when a Java application is not running or by a running Java application as RS-232 port or/and System.out.

The TC65 Terminal and products with GPS do not feature ASC1.

4.2.5Digital Audio Interface (DAI)

The ME has a seven-line serial interface with one input data clock line and input/output data and frame lines to support the DAI. Refer to [1] and [2] for more information.

TC65 Terminal does not feature a DAI interface.

4.2.6I2C/SPI

There is a 4 line serial interface which can be used as I2C or SPI interface. It is described in [2]. The AT^SSPI AT command configures and drives this interface. For details see [1].

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2008-02-25

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Siemens AC65, TC65 Interfaces 1 ASC0 Serial Device, General Purpose I/O, 3 DAC/ADC, 4 ASC1, Digital Audio Interface DAI
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AC65, XT65, XT75, TC65 specifications

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