PEP Modular Computers CP690, Руководство пользователя

Страница: 23 / 54

CP690 Introduction
ID 20955, Rev. 03 © 2002 PEP Modular Computers GmbH Page 1 - 7
1.4 Functions of Onboard Connectors
1.4.1 CompactPCI Connector
The CPCI interface provides all the necessary signals for data transfer as defined by PCI Spec-
ification Rev. 2.1.
The CP690 is routed to the CompactPCI backplane using the Intel 21154 PCI-to-PCI bridge
which interfaces the board with a data path width of 32 or 64-bit and a speed up to 33 / 66MHz.
All the signals are provided on the CPCI connectors J1 and J2 (64-bit extension). In addition to
meeting the requirements of the interface definition of the CPCI Specification PICMG 2.0 R2.1,
the CP690-HS is additionally designed to comply with the CPCI Hotswap specification PICMG
2.1 R1.0, a consequence of which is that the CPCI interface of the board will be precharged
when the board is plugged into a running system.
1.4.2 PMC Interfaces
The two PMC interfaces on the CP690 provide an easy way to extend a CPCI system via the
wide array of interfaces and functions which are available from all PMC vendors. The second-
ary (PMC) side of the PCI-to-PCI bridge provides a 32/64-bit wide PCI data path with a speed
of up to 66 MHz which is routed to the onboard connectors Jn1, Jn2 and Jn3. These connectors
also provide the power supply for the PMC module. The interfaces have been designed to com-
ply with the IEEE 1386.1 specification which defines a PCI electrical interface for the CMC
(Common Mezzanine Card) form factor.
Additionally, the CP690-HS (Hotswap version) has been designed to comply with the CPCI
Hotswap specification PICMG 2.1 R1.0, which means that the power supply of the PMC mod-
ules will be ramped up and a reset generated whenever the board is plugged into a running
system.