Motorola MVME1X7P User Manual

Page 279

Advertising
background image

Programming Model

http://www.motorola.com/computer/literature

4-31

4

The states of RSIZ2-0 after reset (power-up, soft, or local)
match those of the RSIZ2-0 bits from the reset serial bit
stream.

SELI1, SELI0

The SELI1, SELI0 control bits determine the base address
at which the control and status registers respond, as shown
below:

SELI1 and SELI0 are initialized by hardware after a
power-up, soft, or local reset. Their initialized state is
determined by board-level configuration resistors
.

FSTRD

The FSTRD control bit determines the speed at which
SDRAM reads occur. When it is 1, SDRAM reads happen
at full speed. When it is 0, SDRAM reads are slowed by
one clock, unless they are already slowed by NCEBEN

RSIZ2

RSIZ1

RSIZ0

DRAM Array Size

0

0

0

4MB

0

0

1

8MB

0

1

0

16MB

0

1

1

32MB

1

0

0

64MB

1

0

1

128MB

1

1

0

Reserved

1

1

1

Reserved

SELI1

SELI0

Register Base Address

0

1

$FFF43000

1

0

$FFF43100

Advertising