Digi NS9750 User Manual

Page 190

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D y n a m i c m e m o r y c o n t r o l l e r

1 6 6

N S 9 7 5 0 H a r d w a r e R e f e r e n c e

Table 93 shows the outputs from the memory controller and the corresponding inputs
to the 64M SDRAM (2Mx32, pins 13 and 14 used as bank selects).

3

3

15

5

2

2

14

4

1

1

13

3

0

0

12

2

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

14

BA1

11

11

13

BA0

10

10

12

-

-

-

11

-

-

-

10

10/AP

22

AP

9

9

21

-

8

8

20

-

7

7

19

9

6

6

18

8

5

5

17

7

4

4

16

6

3

3

15

5

2

2

14

4

1

1

13

3

0

0

12

2

Table 93: Address mapping for 64M SDRAM (2Mx32, RBC)

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

Table 92: Address mapping for 16M SDRAM (2Mx8, RBC)

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