Chapter 2
2-6
MA mapping for Row and Column Address for SDRAM
Size/ BA BA 12 11 10 9 8 7 6 5 4 3 2 1 0 Row
SDRAM (0) (1) Size
Depth in MB/
Index
Value
64M Col 10 9 8 7 6 5 4 3 32/0
4-bank
12X8 Row 13* 12* 11 24 23 22 21 20 19 18 17 16 15 14
16M Col 11 10 9 8 7 6 5 4 3 16/1
2-bank
11X9 Row 12* 12* 13 23 22 21 20 19 18 17 16 15 14
16M Col 24 11 10 9 8 7 6 5 4 3 32/2
2-bank
11X10 Row 12* 12* 13 23 22 21 20 19 18 17 16 15 14
128M Col 27 26 11 10 9 8 7 6 5 4 3 256/3
4-bank
12X11 Row 13* 12* 25 24 23 22 21 20 19 18 17 16 15 14
256M Col 28 27 11 10 9 8 7 6 5 4 3 512/4
4-bank
13X11 Row 13* 12* 26 25 24 23 22 21 20 19 18 17 16 15 14
64M Col 26 11 10 9 8 7 6 5 4 3 128/5
2-bank
13X10 Row 12* 23 25 24 13 22 21 20 19 18 17 16 15 14
64M Col 26 11 10 9 8 7 6 5 4 3 128/6
4-bank
12X10 Row 13* 12* 25 24 23 22 21 20 19 18 17 16 15 14
64M Col 11 10 9 8 7 6 5 4 3 64/7
4-bank
12X9 Row 13* 12* 25 24 23 22 21 20 19 18 17 16 15 14
256M Col 27 11 10 9 8 7 6 5 4 3 256/8
4-bank
13X10 Row 13* 12* 26 25 24 23 22 21 20 19 18 17 16 15 14
256M Col 11 10 9 8 7 6 5 4 3 128/9
4-bank
13X9 Row 13* 12* 26 25 24 23 22 21 20 19 18 17 16 15 14
256M Col 10 9 8 7 6 5 4 3 64/10
4-bank
13X8 Row 13* 12* 23 25 24 11 22 21 20 19 18 17 16 15 14
256M Col 11 10 9 8 7 6 5 4 3 64/11
4-bank
12X9 Row 13* 12* 25 24 23 22 21 20 19 18 17 16 15 14
256M Col 26 11 10 9 8 7 6 5 4 3 128/12
4-bank
12X10 Row 13* 12* 25 24 23 22 21 20 19 18 17 16 15 14