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Programming Details
MVME7100ET Single Board Computer Programmer’s Reference (6806800K88B
)
62
4.10 Flash Memory
The MVME7100ET is designed to provide 128 MB of soldered-on NOR flash memory. Two AMD
+3.0 V devices are configured to operate in 16-bit mode to form a 32-bit flash bank. This flash
bank is also the boot bank and is connected to LBC Chip Select 0 and 1. The NOR flash is
accessed via the MC864xD local bus. The table below shows memory size and device IDs.
A hardware Flash Bank write-protect switch is provided on the MVME7100ET to enable write
protection of the NOR flash. Regardless of the state of the software flash write-protect bit in
the NOR Flash Control/Status register, write protection is enabled when this switch is ON.
When the switch is OFF, write protection is controlled by the state of the software flash write-
protect bits. It is only disabled by clearing this bit in the NOR Flash Control/Status register (refer
to section 4.1.6.4). Note that the F_WE_HW bit reflects the state of the switch and is only
software readable whereas the F_WP_SW bit supports both read and write operations.
TSEC2
Gigabit Ethernet port 2 routed to front
panel
BCM5482SH
02
TSEC3
Gigabit Ethernet port routed to P2
BCM5482SH
03
TSEC4
Gigabit Ethernet port routed to P2
BCM5482SH
04
Table 4-5 PHY Types and MII Management Bus Addresses (continued)
MC864xD
Ethernet Port Function/Location
PHY Types
PHY MIIM Address
[4:0]
Table 4-6 NOR Flash Memory Configurations
Device Part
Number
Data Bus Width Bank Size
Device Size
Vendor ID
Device ID
S29GL512N10
32 bits
128 MB
512 megabit
AMD-0001h
7E23h
Summary of Contents for MVME7100ET
Page 1: ...MVME7100ET Single Board Computer Programmer s Reference P N 6806800K88B June 2014 ...
Page 10: ...MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 10 List of Figures ...
Page 24: ...Memory Maps MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 24 ...
Page 50: ...Register Descriptions MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 50 ...
Page 96: ...Related Documentation MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 96 ...
Page 97: ......