Mezzanine I/O Companion Board

  • cch&ccg

Available as a mezzanine add-on companion board (AKA side board) to the CCG-RUMBA card, the CCH-MARIACHI is provided with various I/O ports. Four different front panel versions are available (see p.12), featuring USB, COM as well as analog and digital audio I/O ports. Optionally, a secondary DVI connector allows for dual screen video operating mode. The companion board shares its front panel typically with the host carrier (8HP front
panel width in total). In most cases, the CCH-MARIACHI will be attached on top of the CPU board, which is on the right side when looking at the front panel of the boards while inserted into a CPCI rack. Attachment to the bottom side (left) of the CPU board is possible, however only without the secondary DVI option. As an option, the CCH-MARIACHI is available with a rugged on-board 2.5-inch PATA hard disk (or even Flash) drive. Alternatively, either
a CompactFlash card adapter, or an 1.8-inch hard disk can be accommodated as a mezzanine module. In addition an USB SolidState Disk (SSD) module can be mounted either on top or on bottom of the CCH. Another option available is the Trusted Platform Module according to TPM 1.2 for safety critical applications. In addition to its front panel I/O connectors, the CCH-MARIACHI has been designed also for rear I/O and therefore requires a nonbussed single-slot P1/P2 backplane in addition to the CompactPCI bus. However, if solely front panel I/O is needed, the J1/J2 connectors may be omitted as an option. The CCH-MARIACHI communicates with the host CPU by means of three expansion connectors: P-EXP (LPC, USB, HD audio), P-IDE (mass storage I/F), and P-SDVO (secondary digital video output). P-EXP combines several southbridge data channels: The LPC (Low Pin Count) is a multiplexed ISA  bus, enabling the super-I/O (SIO) controller chip to emulate the legacy I/O interfaces; among these are the classic parallel (printer), serial (COM) and keyboard/mouse ports. Two USB lines are provided, one assigned to a front panel USB connector, the other to a pin header suitable for on-board attachment of a low profile USB Flash Disk (Solid-State Drive, SSD) module on bottom of the CCH between CPU and mezzanine board.
Mounting an USB SSD on top is also possible as a stuffing option if no 2.5-inch hard disk is present. Alternatively the second USB line can be redirected to CPCI rear I/O. The HD Audio interface (AKA Azalia) is used
to control the audio codec on the CCHMARIACHI. The SMB (System Management Bus) is an enhanced I2 C interface, enabling the BIOS and OS to gain access to special control functions of a rear I/O device.
The Parallel ATA/IDE interface is still essential for embedded applications. Optionally, the CCH-MARIACHI can be equipped with either a CompactFlash mezzanine module, or a robust 2.5-inch hard disk drive, particularly
suited for use in a rugged environment. A mezzanine module is also available which carries an 1.8-inch drive (ZIF interface), as an alternative. The SDVO interface connects to the multiplexed PEG/SDVO graphics I/F of the
GMCH (northbridge) on the CPU carrier board. The SDVO-C port is used to establish a secondary PanelLink (DVI) channel on the CCH-MARIACHI, in addition to the primary DVI connector on the CCG-RUMBA. Basically,
dual screen operation mode is also possible with the CCG-RUMBA alone. Due to the VGA signals on its DVI-I connector, a digital and in addition a VGA monitor can be attached simultaneously (splitter cable required).
However, if two DVI (digital) monitors are mandatory, the CCH-MARIACHI can be optionally ordered with a secondary PanelLink transmitter and DVI front panel connector. Several I/O functions are also directly
available by on-board headers on the CCHMARIACHI. The on-board interfaces include IDE, serial, parallel, PS/2 and analog audio I/O ports and are only stuffed as an option. The Trusted Platform Module is an optionally
available cryptographic chip, which provides a comprehensive hardware and software solution for safer computing. Conforming to the TPM1.2 standard of the TCG, the TPM is comprised of a 16-bit security controller and
additional hardware e.g. to generate 2048 bit RSA keys and true random numbers, thus meeting the highest industry rating for digital security.

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  • Single size Eurocard (160x100mm2), needs 4HP (20.3mm) additional mounting space, typically delivered as a ready to use assembly unit including the CCG-RUMBA providing a common 8HP front panel shared with the CPU board, mounting position right (on top of CPU board) or left (without DVI)

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