2.7 8254 for Timer Pacer Generation

“H”

“H”

4MHz Clock

“H”

8254 Timer/Counter

CLK0

Timer 0

GATE0

OUT0

 

 

CLK1

Timer 1

GATE1

OUT1

 

 

CLK2

Timer 2

OUT2

GATE2

Digital Input Timer Pacer

Digital Output Timer Pacer

Figure 2.7 8254 configuration

The internal timer/counter 8254 on the PCI-7200 is configured as the above diagram (Figure 2.7). Users can use it to generate the timer pacer for both digital input and digital output triggers.

The digital input timer pacer is from OUT0 (Timer 0), and the digital output timer pacer is from OUT1 (Timer 1). Besides, Timer 0 and Timer 2 can be cascaded together to generate more timer pacer frequencies for digital input. Also, Timer 2 can be cascaded with Timer 1 for digital output.

pacer rate = 4MHz / ( C0 * C2)

if Timer 0 & Timer 2 are cascaded

pacer rate = 4MHz / C0

if timer 0 & Timer 2 are not cascaded

The maximum pacer signal rate of input and output are 4MHz/2 = 2Mhz. The minimum signal rate is 4MHz/65535/65535.

For example, to get a pacer rate of 2.5kHz, set C0 = 40 and C2 = 40. That is 2.5KHz = 4Mhz / (40 x 40)

Installation 19

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Intel LPCI-7200S manual for Timer Pacer Generation, 4MHz Clock

LPCI-7200S specifications

The Intel LPCI-7200S is a powerful and versatile communication controller that stands out in the field of embedded computing solutions. This product is designed to cater to a wide range of applications including industrial automation, telecommunications, and transportation systems. Its robust architecture, combined with advanced features and technologies, makes it an attractive option for developers and system integrators looking for reliable performance in mission-critical environments.

One of the main features of the LPCI-7200S is its enhanced processing capability. The controller is built around Intel’s latest processor technology, enabling high-speed data handling and improved overall system response. This makes the LPCI-7200S suitable for applications that require real-time data processing and quick decision-making based on incoming information.

Additionally, the LPCI-7200S incorporates a variety of communication interfaces, ensuring seamless integration with other devices and systems. It features multiple serial ports, Ethernet interfaces, and various other connectivity options, allowing for flexible configuration depending on the needs of the application. This versatility enables users to easily connect a range of peripherals, including sensors, cameras, and other industrial equipment.

The LPCI-7200S also supports various industrial communication protocols, making it adaptable to specific market needs. With support for standards such as CAN, Modbus, and Ethernet/IP, it can facilitate efficient data exchange in diverse industrial environments.

Power efficiency is another key characteristic of the LPCI-7200S. Intel has designed this controller to operate effectively within lower power consumption thresholds, which is critical for embedded applications, particularly those that need to manage thermal output and maintain long operational life without requiring frequent maintenance.

Moreover, the LPCI-7200S boasts a rugged design, suitable for harsh environments. Its components are built to withstand extreme temperatures, vibrations, and dust, ensuring functionality even in challenging conditions. This durability makes it an ideal choice for use in outdoor applications or manufacturing settings where reliability is paramount.

Finally, with an emphasis on security, the LPCI-7200S implements advanced cybersecurity features to protect sensitive data and prevent unauthorized access. This attention to security is increasingly important in modern connected environments where the risks of cyber threats are ever-present.

In summary, the Intel LPCI-7200S is a cutting-edge communication controller that offers a blend of processing power, versatile connectivity, industrial protocol support, energy efficiency, ruggedness, and security. These characteristics make it an invaluable asset for a wide array of applications across various industries.