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Interfaces; Asc0 - Serial Device; General Purpose I/o; Dac/adc - Siemens TC65 JAVA User Manual

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TC65 JAVA User's Guide
Strictly confidential / Draft
4.2

Interfaces

4.2.1

ASC0 - Serial Device

ASC0, an Asynchronous Serial Controller, is a 9-wire serial interface. It is described in the
Hardware Interface Description [5]. Without a running Java application the module can be
controlled by sending AT commands via ASC0. Furthermore ASC0 is designed for
transferring files from the development PC to the module and for controlling the module with
AT commands. When a Java application started, ASC0 can be used as an RS-232 port, refer
to Java doc [6].
4.2.2

General Purpose I/O

There are ten I/O pins that can be configured for general purpose I/O. When TC65 starts up,
all 10 pins are set, by default, to high-impedance state for use as input. One pin can be
configured as pulse counter. See [4] and [5] about configuring the pins.
4.2.3

DAC/ADC

TBD
4.2.4

ASC1

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 System.out.
4.2.5

Digital Audio Interface (DAI)

To support the DAI function, the TC65 has a five-line serial interface with one input data
clock line and input/output data and frame lines. Refer to AT Command Set [4] and Hardware
Interface Description document [5] for more information.
4.2.6

I2C/SPI

There is a 4 line serial interface which can be used as I2C or SPI interface. It is described in
the Hardware Interface Description [5]. The at^sspi at command configures and drives this
interface. For details see [5].
TC65 JAVA User's Guide_V01
Page 17 of 69
s
11.03.2005

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