Rtm Vpd Eeprom; Ethernet Phy Address; Flash Memory; Table 2-5. Phy Types And Mii Management Bus Addresses - Motorola MVME3100 Programmer's Manual

RTM VPD EEPROM

The MVME3100 board provides an 8KB dual address serial EEPROM containing VPD configuration
information specific to the MVME3100 RTM. Typical information that may be present in the EEPROM
may include: manufacturer, board revision, build version, date of assembly, options present, etc. The
RTM VPD EEPROM device ID is user selectable with the recommended value for MVME3100 as shown
in Table 2-4 on page
Documentation, for additional details.

Ethernet PHY Address

The assigned Ethernet PHY addresses on the MPC8540 MII management (MIIM) bus is shown in the
following table.

Table 2-5. PHY Types and MII Management Bus Addresses

MPC8540
Ethernet
Port
TSEC1
TSEC2
Fast
Ethernet
Controller

Flash Memory

The MVME3100 is designed to provide one or two physical banks of soldered-on Flash memory. Each
bank may be populated with two AMD Spansion MirrorBit 3.0V devices configured to operate in 16-bit
mode to form a 32-bit Flash bank. The Flash bank connected to LBC Chip Select 0 is the boot bank and
is always populated. The second Flash bank connected to LBC Chip Select 1 may or may not be
populated depending on Flash size requirements and available Flash devices. The VPD Flash packet(s)
will determine which banks are populated and the size of the devices. Software must program one or
two LBC chip selects based on the VPD Flash packet information. The following table defines the
supported Flash density options for each bank. The factory configuration for the MVME3100-1152 is
one bank of 64MB; for the MVME3100-1263, it is one bank of 128MB.

Table 2-6. Flash Options

Flash Bank Size
32MB
64MB
128MB
29. Refer to the 2-Wire Serial EEPROM Datasheet listed in
Function/Location
Gigabit Ethernet port routed to front
panel
Gigabit Ethernet port routed to P2
10/100 Ethernet port routed to P2
Spansion Part Number
S29GL128N
S29GL256N
S29GL512N
Chapter 2 Programming Details
PHY MIIM Address
PHY Types [4:0]
BCM5461S 01
BCM5461S 02
BCM5221 03
Device Size
128 Mbit
256 Mbit
512 Mbit
MVME3100 Programmer's Guide (V3100A/PG1)
Appendix A, Related
31