PMC/PCI Interface: PCI Interrupts

Managing Bandwidth

It is possible to inadvertently set the PCI9060ES to give a disproportionate bandwidth on either side of the bridge. For instance, one side may retry frequently because the timer value is slightly less than the time required to gain access to the other side. As a result, the retries needlessly consume a large percentage of the attempted cycles. To avoid this situa- tion, tune the timer values appropriately for the system devices.

Bridge to Bridge Considerations

Many PMC modules also incorporate a bridge chip between their PCI and local busses, essentially creating two bridges that must be crossed to complete a cycle. Often, the sec- ond bridge is a source of long delays due to the associated bus acquisition latency. The timer values should be set up to accommodate any additional latency.

PCI INTERRUPTS

The PmT1 and PmE1 has two PCI interrupt lines:

LSERR*: A synchronous level output indicating a system error. It is asserted to the MPC860P when the PCI bus target abort or master abort status bit is set in the PCI Status Configuration reg- ister.

LINT0*: A synchronous level output to the MPC860P indicating a local interrupt. The PCI-to-local doorbell register or a PCI BIST interrupt can generate a local interrupt.

See the PCI9060ES data sheet for more details on the interrupt lines. CPU Interrupts describes the interrupt handling by the MPC860P.

PCI Bus Interface

Using the DRAM timing, the PCI interface of the PmT1 and PmE1 is capable of the transfer rates given in Table 7-8. The transfer rates to PCI bus are dependent on the baseboard design. Local to PCI bus and PCI to local bus does not support bursting.

Table 7-8:PCI-to-Local Slave Access Timing

Cycle Type:

Wait States:

Total Clocks:

Slave Read (long word)

1

5

 

 

 

Slave Write (long word)

1

5

 

 

 

PMC CONNECTOR PIN ASSIGNMENTS

The PmT1 and PmE1 modules have three 64-pin PMC connectors: P11, P12, and P14. These connectors support the PCI and serial interfaces. The pin arrangement for the 64-pin con- nector is shown in Fig. 7-1. The possible manufacturer part numbers for this connector are

7-8

PmT1 and PmE1 User’s Manual

10002367-02

Page 69 Page 71
Page 70
Image 70
Emerson PME1, PMT1 user manual PMC/PCI Interface PCI Interrupts, PMC Connector PIN Assignments
Page 69 Page 71

PMT1, PME1 specifications

The Emerson PME1 and PMT1 are advanced solutions in the realm of process management and automation, designed to enhance the efficiency and effectiveness of industrial operations. These devices play a crucial role in improving process control and providing comprehensive data analysis, which can lead to increased productivity and reduced operational costs.

The PME1 is characterized by its robust design and highly flexible architecture, allowing it to adapt to a variety of industrial environments. It integrates seamlessly with existing systems and offers advanced connectivity options to ensure that data flow is uninterrupted across different platforms. This feature is particularly important in modern industrial settings where data silos can inhibit operational efficiency.

The PMT1, on the other hand, focuses on real-time monitoring and telemetry. Its streamlined interface allows for quick access to key metrics, enabling operators to make informed decisions promptly. This is crucial in processes where timing is essential and minor delays can lead to significant financial losses. The PMT1 supports both wired and wireless communication protocols, ensuring that data is transmitted reliably irrespective of operational conditions.

One of the main features of both the PME1 and PMT1 is their integration of cutting-edge predictive analytics. With machine learning capabilities, these devices can analyze patterns and trends within the data, providing insights that can preemptively address potential issues before they escalate into significant problems. This predictive capability contributes to minimizing downtime and optimizing maintenance schedules, thus enhancing the overall lifecycle of equipment.

Another significant characteristic of the PME1 and PMT1 is their user-friendly interface. The intuitive design allows operators of all skill levels to navigate the systems with ease, minimizing training time and increasing overall productivity. With customizable dashboards, users can tailor their views to highlight the most relevant data for their specific operational needs.

In terms of security, both devices utilize advanced cybersecurity measures to protect sensitive data from unauthorized access. This is becoming increasingly important as industries rely more on digital solutions, and the potential risks associated with data breaches grow.

In summary, the Emerson PME1 and PMT1 are sophisticated tools designed for modern industrial applications, combining powerful features, advanced technologies, and essential characteristics. Their ability to provide real-time data analysis, ensure connectivity, and enhance predictive maintenance makes them invaluable for optimizing process management in various sectors. With a focus on user experience and data security, these devices are set to redefine efficiency and productivity in industrial operations.
Top Page Image Contents