Digi NS9750 User Manual

Page 201

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1 7 7

M e m o r y C o n t r o l l e r

Table 107 shows the outputs from the memory controller and the corresponding
inputs to the 64M SDRAM (4Mx16, pins 13 and 14 used as bank selects).

11

-

-

-

10

10/AP

20

AP

9

9

19

-

8

8

18

-

7

7

17

9

6

6

16

8

5

5

15

7

4

4

14

6

3

3

13

5

2

2

12

4

1

1

11

3

0

0

10

2

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

14

BA1

23

23

13

BA0

22

22

12

-

-

-

11

11

21

-

10

10/AP

20

AP

9

9

19

-

8

8

18

-

7

7

17

9

Table 107: Address mapping for 64M SDRAM (4Mx16, BRC)

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

Table 106: Address mapping for 64M SDRAM (2Mx32, BRC)

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