Data Mode AT COMMANDS

 

 

 

 

Modem Setup

Host

Modem Response

 

Command

 

 

 

 

 

 

 

 

No Echo, Numeric (E0, V0)

AT<CR>

0<CR>

 

 

 

 

 

 

ATS0?<CR>

000<CR><LF>0<CR>

 

 

 

 

 

No Echo, Text (E0, V1)

AT<CR>

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

 

 

 

 

 

 

ATS0?<CR>

<CR><LF>000<CR><LF><CR><LF>OK

 

 

 

<CR><LF>

 

 

 

 

 

The DCE can be configures to use different response codes depending on the V.250 command that is enabled (AT+MR, AT+ER, AT+DR, and AT+ILRR). Alternatively, the ATWn command can be used to set these V.250 commands. The mapping for the ATWn command to V.250 commands is shown in Table 14. The setting for the ATXn command (page 43) can affect which ATWn response codes are reported to the DCE. The ATXn command configures the modem call progress detection and reporting requirements during dialing (for example, dial tone and busy tone detection). The ATQn command selects whether the modem sends result codes to the DTE.

Table 14. Data Reporting Wn Mapping

Wn

+ER

+DR

+MR

+ILRR

 

 

 

 

 

W0

Disable

Disable

Disable

Disable

 

 

 

 

 

W2

Disable

Disable

Enable

Enable

 

 

 

 

 

W3

Enable

Enable

Enable

Enable

 

 

 

 

 

W4

Enable

Enable

Enable

Disable

 

 

 

 

 

For example, a connection is established with the remote modem as shown below (with LAPM error correction and V.42 bis data compression). The telephone line (or modem-to-modem connection) data rate is 33,600 bps and the local UART (DTE-to-modem) connection rate is 115,200 bps.

Figure 3. Example of a Remote Connection

 

UART

Telephone

 

Line

DTE

Interface

LOCAL MODEM

REMOTE MODEM

 

(115,200 bps)

(33,600 bps)

The modem then sends the ‘CONNECT’ messages for the following four Wn commands:

•ATW0

ILRR: 115200

CONNECT 50666

•ATW2

+MCR: V90

+MRR: 28800 CONNECT 50666

536EX Chipset Developer’s Manual

27

Intel Confidential

Page 26 Page 28
Page 27
Image 27
Intel 537EX manual Data Reporting Wn Mapping, Disable Enable, Dte
Page 26 Page 28

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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