System Memory; Timers; Ethernet Interfaces - Emerson MVME4100 Installation And Use Manual

Functional Description
For programming information, see the MVME4100 Single Board Computer Programmer's
Reference.
4.5

System Memory

The MVME4100 includes one SO-CDIMM socket. The SO-CDIMM socket supports 1 GByte and
2 GByte DDR2 SDRAM modules. The MVME4100 supports memory speeds up to DDR533.
4.6

Timers

Timing functions for the MVME4100 are provided by four global high-resolution timers
integrated into the MPC8548E plus four additional independent 32-bit timers in a PLD.
The four integrated 32-bit timers are clocked by the RTC input which is driven by a 1 MHz clock.
Refer to the MPC8548E reference manual, listed in
Manufacturers' Documents on page 129
information.
The clock source for the four 32-bit timers in the PLD is 25 MHz. The timer prescaler must be
configured to generate a 1 MHz timer reference. For programming information, see
MVME4100 Single Board Computer Programmer's Reference.
4.7

Ethernet Interfaces

The MVME4100 provides four 10/100/1000 Mbps full-duplex Ethernet interfaces using the
MPC8548E Ethernet Controllers. Two Broadcom BCM5482S PHYs are used. The Ethernet ports
on the MPC8548E are configured to operate in RGMII mode. Two Gigabit Ethernet interfaces
are routed to front panel RJ-45 connectors with integrated LEDs for speed and activity
indication. The other two Gigabit Ethernet interfaces are routed to P2 for rear I/O. For
programming information, see MVME4100 Single Board Computer Programmer's Reference.
84
Appendix B, Related
for additional details and/or programming
MVME4100 Single Board Computer Installation and Use (6806800H18D)
Documentation,