Motorola MVME2400 Series Programmer's Reference Manual page 263

a. Clear the isa_hole bit (refer to the section titled
b. Make sure the
c. Wait for at least one SDRAM refresh to complete. A simple way
d. Make sure that the SDRAM Speed Attributes Register contains
e. Make sure the following bits are initialized as follows:
f. Make sure that ROM/Flash banks A and B are not enabled to
g. Make sure that no other devices are set up to respond in the range
2. For each of the Blocks A through H:
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Register for more information).
CLK Frequency Register
frequency.
to do this is to wait for the 32-bit counter to increment at least
100 times (refer to the section on
information). Note that the refdis control bit must not be set in
the ECC Control Register.
its power-up reset values. If not, make sure that the values match
the actual characteristics of the SDRAM being used.
refdis = 0
rwcb = 0
derc = 1
scien = 0
dpien = 0
sien = 0
mien = 0
mbe_me = 0
SCRUB_FREQUENCY = $00
(Refer to the ECC Control Register
Scrub/Refresh Register section for more information).
respond in the range $00000000 - $20000000. (Refer to the
section on ROM A Base/Size Register
Register for more information.)
$00000000 - $20000000.
Software Considerations
Vendor/Device
matches the operating
32-Bit Counter for more
section and the
and ROM B Base/Size
3
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