Data Mode AT COMMANDS

Data Mode AT COMMANDS

3

The 536EX chipsets implement:

•Standard Hayes*-compatible AT commands and S-registers in data mode

•Standard EIA/TIA-578 AT commands in Class 1 fax mode

•Additional AT command sets for error correction, data compression and voice mode

In data mode, the AT commands configure the DCE (modem) to establish a connection with a remote data modem. In data mode, the 536EX chipsets execute the AT commands for error correction (MNP 2-4, V.42) and data compression (MNP 5, V.42 bis) described in Table 21 on page 57, as well as the fax and voice mode commands AT+FCLASS=1 (fax) and AT+FCLASS=8 (voice).

3.1Using AT Commands to Access the S-Registers [Sn?, Sn=x, ?]

The DTE can access the S-registers through the ATSn?, ATSn=x, and ? commands. For example, to configure the modem to automatically answer a data modem call after two rings, type ATS0=2.

Examples:

ATS0=2

Configures S-register

S0

to

‘2’

ATS0?

Reads

the

contents

of

S-register S0

ATS0=

Configures S-register

S0

to

‘0’

AT?

Reads

the

contents

of

the last accessed (read or write) S-register

3.2Modem Responses and Command Echo [En, Vn, Xn, Wn, Qn]

The ATEn command configures the DCE to send back to the DTE any data that the DTE sent to the DCE while in command mode. The ATVn command sets the DCE response codes to either text or numeric form. For example, upon successfully processing an AT command string, the DCE sends an ‘OK’ (text) or a ‘0’ (numeric) to the DTE.

Examples:

Modem Setup

Host

Modem Response

Command

 

 

 

 

 

Echo, Numeric (E1, V0)

AT<CR>

AT<CR>0<CR>

 

 

 

 

ATS0?<CR>

ATS0?<CR>000<CR><LF>0<CR>

 

 

 

Echo, Text (E1, V1)

AT<CR>

AT<CR><CR><LF> OK<CR><LF>

 

 

 

 

ATS0?<CR>

ATS0?<CR><CR><LF>000<CR><LF><CR>

 

 

<LF>OK<CR><LF>

 

 

 

26

536EX Chipset Developer’s Manual

Intel Confidential

Page 25 Page 27
Page 26
Image 26
Intel 537EX Using AT Commands to Access the S-Registers Sn?, Sn=x, ?, Modem Responses and Command Echo En, Vn, Xn, Wn, Qn
Page 25 Page 27

537EX specifications

The Intel 537EX is a powerful and innovative embedded processor designed for a range of applications, particularly in the fields of industrial automation, telecommunications, and transport management systems. This processor is a member of Intel's embedded product line, tailored specifically to meet the demands of systems that require high reliability and long lifecycle support.

One of the main features of the Intel 537EX is its multi-core architecture, which enables efficient parallel processing capabilities. This allows for the execution of multiple tasks simultaneously, significantly improving overall system performance. The processor also incorporates Intel’s advanced power management technology, which ensures that the device consumes energy efficiently, enhances thermal performance, and prolongs the lifespan of the system.

The Intel 537EX supports a range of connectivity options, including high-speed Ethernet and Serial ATA interfaces. This ensures that it can easily integrate into existing systems, seamlessly supporting applications that require robust data transfer capabilities. Additionally, the processor is equipped with multiple I/O ports, facilitating the connection of various peripherals and sensors, which is crucial in industrial applications.

One of the standout technologies within the Intel 537EX is its support for hardware virtualization. This feature allows for the creation of multiple virtual environments within a single physical structure, optimizing resource utilization and enhancing system flexibility. Additionally, Intel’s integrated security technologies provide a significant layer of protection against potential threats, ensuring that embedded systems remain secure.

Another characteristic of the Intel 537EX is its extensive software support, which includes compatibility with various operating systems and development environments. This versatility makes it an attractive choice for developers looking to build or upgrade their embedded systems. With access to Intel's comprehensive software tools, developers can quickly optimize applications to take full advantage of the processor's capabilities.

The Intel 537EX also boasts excellent thermal performance, allowing it to operate efficiently in harsh environments. This is crucial for embedded applications in industrial settings where temperature fluctuations are common. Overall, the Intel 537EX is engineered to deliver high-performance processing power, superior connectivity, and enhanced security, solidifying its position as a reliable choice for demanding embedded applications.
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