Flash Memory; Table 4-6 Nor Flash Memory Configurations; Table 4-7 Nand Flash Memory Configurations - SMART Embedded Computing MVME7100 Programmer's Reference Manual

4.10

Flash Memory

The MVME7100 is designed to provide 128MB of soldered-on NOR flash memory. Two
AMD +3.0V 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 next table shows memory size and
device IDs.
Table 4-6
Device Part
Number
S29GL512N10
A hardware flash bank write-protect switch is provided on the MVME7100 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.
Also included is one bank of NAND flash which is accessed via the MC864xD local bus.
The next table shows the memory sizes and device IDs.
Table 4-7
Device Part
Number
K9LBG08U0M
K9HCG08U1M
MVME7100 Single Board Computer Programmer's Reference (6806800E82C)
NOR Flash Memory Configurations
Data Bus
Bank Size
Width
32 bits 128MB
NAND Flash Memory Configurations
Data Bus
Bank Size
Width
8 bits 4GB
8 bits 4GB
Programming Details
Device Size Vendor ID Device ID
512 megabit AMD-0001h 7E23h
Device
Vendor ID
Size
4GB Samsung = ECh
8GB Samsung = ECh
Device ID
D7h
D7h
53