Digi NS9750 User Manual

Page 209

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

16-bit wide databus address mappings, SDRAM (RBC)

Table 117 through Table 126 show 16-bit wide databus address mappings for SDRAM
(RBC) devices.

Table 117 shows the outputs from the memory controller and the corresponding
inputs to the 16M SDRAM (1Mx16, pin 14 used as bank select).

11

11

24

12

10

10/AP

23

AP

9

9

22

11

8

8

21

10

7

7

20

9

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

BA

9

9

13

-

-

-

12

-

-

-

11

-

-

-

10

10/AP

20

AP

Table 117: Address mapping for 16M SDRAM (1Mx16, RBC)

Output address
(

ADDROUT

)

Memory device
connections

AHB address to row
address

AHB address to
column address

Table 116: Address mapping for 512M SDRAM (64x8, BRC)

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