1.3.5 Memory and I/O Addressing

The cPB-4612 supports up to 2GB of DDR333/266/200 via two right-angled SODIMM sockets. Memory can be purchased from DTI separately.

See the "Memory Configuration" and "I/O Configuration" topics in Chapter 2 for more information.

1.3.6 Power Ramp Circuitry

The cPB-4612 features a power controller with power ramp circuitry that allows the board's voltages to be ramped in a controlled fashion. The power ramp circuitry eliminates large voltage or current spikes caused by hot swapping boards. This controlled ramping is a requirement of the CompactPCI Hot Swap Specification**, PICMG 2.1, Version 1.0.

The cPB-4612's power controller unconditionally resets the board when it detects that the 3.3V, 5V, and 12V supplies are below an acceptable operating limit. Minimum voltage thresholds for the cPB-4612 are: 4.75V (5V supply), 3.0V (3.3V supply), and 10.0V (+12V supply).

1.3.7 Rear-Panel I/O

The following I/O signals are available from the J5 connector at the back of the cPB-4612. These signals are available for use by a rear panel transition board such as the cRT-4612.

Serial port (COM2)

USB Ports 2 and 3

Secondary IDE channel

Serial ATA channel

Video

1.3.8Video

The cPB-4612 supports VGA video using Intel’s 855GME video interface. The video is accessed through the CompactPCI J5 connector. The 855GME can share up to 32MB of system memory with the internal video.

The onboard video from the Intel 855GME may be disabled by a jumper setting. This will allow use of a PCI video card only. If the onboard video is enabled and a PCI video card is installed, the PCI video card will be the primary video source.

The Intel 855GME Chipset topic contains a link to the datasheet for this device.

1.3.9 PCI Mezzanine Card (PMC) Interface

The cPB-4612 provides a 64bit/66Mhz PMC site and a 32bit/33Mhz PMC site, both with front panel access. The 64bit/66Mhz PMC site is only 3.3V tolerant. The 32bit/33Mhz can be configured to be either 3.3V or 5V via a jumper setting. Voltage keys are also provided to prevent inadvertently placing a PMC card on PMC site that does not support its VI/O voltage.

The cPB-4612 w/ IDE provides a 64bit/66Mhz PMC site and a 2.5” HDD IDE connector. The 64bit/66Mhz PMC site is only 3.3V tolerant. Voltage keys are also provided to prevent inadvertently placing a PMC card on PMC site that does not support its VI/O voltage.

The "PMC Specification" topic in Appendix D contains a link to the sponsoring organization for the PMC specification.

1.3.10 Dual 10/100/1000 Ethernet Interfaces

The cPB-4612 provides two 10/100/1000BaseTx Ethernet channels (ENET A and ENET B) through the Intel 82546EB Fast Gigabit Ethernet Multifunction PCI Controller. The 82546EB consists of both the Media

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Intel cpci borard with a intel pentuim M, cpb4612 Memory and I/O Addressing, Power Ramp Circuitry, Rear-Panel I/O, Video

cpb4612, cpci borard with a intel pentuim M specifications

The Intel CPCI board equipped with the Intel Pentium M processor, specifically the CPB4612, represents a significant advancement in the realm of compact computing solutions tailored for embedded applications. This board is primarily designed to cater to industries requiring low-power, high-performance computing capabilities, such as telecommunications, medical equipment, and industrial automation.

One of the defining features of the CPB4612 board is its incorporation of the Intel Pentium M processor, known for its efficient architecture. The Pentium M operates on a low power envelope while delivering robust performance, thanks to its advanced Power Management capabilities, which can dynamically adjust frequency and voltage based on workload demands. This feature not only assists in maintaining optimal performance but also extends the operational lifespan of embedded systems by reducing unnecessary power consumption.

The CPB4612 boasts a modular design compliant with the CompactPCI (CPCI) standard, enhancing its versatility within various configurations. This modular structure allows easy integration with other CPCI-compliant boards, facilitating scalability for different application requirements. Furthermore, the board supports up to 1 GB of DDR RAM, which provides sufficient memory capacity for most embedded applications.

In terms of connectivity, the Intel CPB4612 features a wealth of interfaces including Ethernet for network connectivity, USB ports for peripheral devices, and serial ports for legacy support. This array of options ensures that the board can connect seamlessly to a variety of external devices, catering to the needs of diverse industry applications.

The board is also equipped with advanced thermal management technologies, ensuring it operates within safe temperature ranges even under heavy workloads. The design includes heat sinks and ventilation options that help dissipate heat effectively, mitigating the risk of thermal-related performance degradation.

In summary, the Intel CPCI board with the Pentium M processor, CPB4612, is an ideal choice for applications demanding a balance between power efficiency and high performance. With its modular design, ample connectivity options, and robust thermal management features, it provides a reliable and flexible solution for embedded computing needs across multiple industries. This board exemplifies Intel's commitment to innovation, allowing developers to harness the power of advanced computing in a compact form factor.