Motorola MCPN750A 用户手册

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页码 186
Block Diagram
http://www.motorola.com/computer/literature
6-7
6
PCI Mezzanine Interface
A key feature of the MCPN750A family is the PCI (Peripheral Component 
Interconnect) bus. In addition to the on-board local bus devices (Ethernet, 
etc.), the PCI bus supports an industry-standard mezzanine interface, IEEE 
P1386.1 PMC (PCI Mezzanine Card). This support consists of two single-
wide or one double-wide PMC slots. Each slot provides four EIA-E700 
AAAB connectors located on the MCPN750A board to interface to a 
32/64-bit PMC to add any desirable function. 
PMC modules offer a variety of possibilities for I/O expansion through 
FDDI (Fiber Distributed Data Interface), ATM (Asynchronous Transfer 
Mode), graphics, and Ethernet ports. The base board supports PMC front 
panel and rear transition module I/O.
Two sets of four 64-pin connectors on the base board (J11 - J14 and J21 - 
J24) interface with 32-bit or 64-bit IEEE P1386.1 PMC-compatible 
mezzanines to add any desirable function. The PCI Mezzanine Card slots 
have the following characteristics:
Refer to the 
 for the pin assignments of the PMC 
connectors. For detailed programming information, refer to the PCI bus 
descriptions in the MCPN750A CompactPCI Single Board Computer 
Programmer’s Reference Guide
 (MCPN750A/PG) and to the user 
documentation for the PMC modules you intend to use.
Mezzanine Type
PMC (PCI Mezzanine Card)
Mezzanine Size
S1B: Single width, standard depth (74mm x 149mm) 
with front panel
S2B: Double width, standard depth (149mm x 
149mm)
PMC Connectors
J11-J14 and J21-J24 (32/64-Bit PCI with front and 
64-bit rear I/O)
Signalling Voltage
V
io
 = 5.0Vdc