Digi NS9750 User Manual

Page 194

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background image

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

1 7 0

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

Table 98 shows the outputs from the memory controller and the corresponding inputs
to the 128M SDRAM (16Mx8, pins 13 and 14 used as bank selects).

6

6

19

8

5

5

18

7

4

4

17

6

3

3

16

5

2

2

15

4

1

1

14

3

0

0

13

2

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

14

BA1

13

13

13

BA0

12

12

12

12

-

-

11

11

25

-

10

10/AP

24

AP

9

9

23

11

8

8

22

10

7

7

21

9

6

6

20

8

5

5

19

7

4

4

18

6

3

3

17

5

2

2

16

4

Table 98: Address mapping for 128 SDRAM (16Mx8, RBC)

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

Table 97: Address mapping for 128 SDRAM (8Mx16, RBC)

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