Motorola MVME1X7P manual SELI1, SELI0, Dram Array Size

Models: MVME1X7P

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Programming Model

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

 

 

 

 

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

SELI0

Register Base Address

 

 

 

0

1

$FFF43000

 

 

 

1

0

$FFF43100

 

 

 

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

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Page 279
Image 279
Motorola MVME1X7P manual SELI1, SELI0, Dram Array Size