
Module
4.3Memory
The CMM has a SODIMM (Small Outline Dual Inline Memory Module) socket on board. The SODIMM is populated with a 128 MByte unbuffered memory module.
The CMM also has four separate 16 MByte flash modules. These are Intel® E28F128 flash memory modules. Each memory module has multiple lockable regions within the flash.
4.4Ethernet
The CMM has two Intel® 82551QM Fast Ethernet Multifunction Controllers with integrated media access controllers and physical interfaces. The output from each of these chips is passed to a dedicated multiplexing device (mux), the SN74CBT16124. Each mux can be individually controlled to send the Ethernet signals to one of three destinations: the front panel, an optional RTM connection, or a separate backplane connection. Separate magnetics (six total) provide magnetic coupling for the
In Figure 3, “CMM Top View Layout” on page 16, the four magnetics for the RTM and backplane connections are at the bottom of the board. The two magnetics for the front panel are integrated into the front panel
4.5Serial Port UARTs
The UART (Universal Asynchronous Receiver/Transmitter) controller on the CMM board is a Texas Instruments* TL16C752B dual UART chip. The first serial port is connected to an
The UART driver provides 15 kV of ESD protection (8 kV contact, 15 kV air discharge).
| Intel NetStructure® MPCMM0002 Chassis Management Module |
July 2007 | Hardware TPS |
Order Number: | 19 |