Local Analog Loopback With Self-Test AT&T8

Data Mode AT COMMANDS

Figure 6. Local Analog Loopback Test

LOCAL MODEM

TXD

TRANSMITTER

DTE

RXD

RECEIVER

Local Modem (or Test Modem)

AT&F &W<CR>	Returns the modem to the factory defaults.
AT S18 = 0 &T1	Causes the modem to run local analog loopback without self-test.
CONNECT 115200	Modem response code indicates that analog loopback is
	enabled with a DTE speed of 115200.

This is a test. Test string that the user could type at the keyboard. If the received data is the same as the test string, then the DTE-to-modem communication channel is working properly.

+++AT	TIES Escape Sequence is used to return to command mode.
OK	Modem enters command mode.
AT&T0	Terminates any loopback test.
OK	Modem aborts analog loopback and stays in command mode.

3.9.2Local Analog Loopback With Self-Test [AT&T8]

This test is used by the local DTE to check the DTE-to-modem communication integrity.

Figure 7. Local Analog Loopback with Self-Test

		LOCAL MODEM
TXD	PATTERN		TRANSMITTER
	PATTERN
	GENERATOR
	GENERATOR
DTE
RXD	PATTERN
	PATTERN		RECEIVER
	CHECKER		RECEIVER
	CHECKER

536EX Chipset Developer’s Manual

Intel Confidential

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.

Intel 537EX manual Local Analog Loopback With Self-Test AT&T8, Local Modem or Test Modem

Models: 537EX