www.digiembedded.com
189
Memory Controller
Table122 shows the outputs from the memory controller and the corresponding inputs to the 128M SDRAM (16Mx8, pins 13 and 14 used as bank selects).
11 11 23 -
10 10/AP 22 AP
99 21 -
88 20 9
77 19 8
66 18 7
55 17 6
44 16 5
33 15 4
22 14 3
11 13 2
0 0 12 **
Output address
(ADDROUT)Memory device
connections AHB address to row
address AHB address to
column address
14 BA1 11 11
13 BA0 12 12
12---
11 11 24 -
10 10/AP 23 AP
9 9 22 10
88 21 9
77 20 8

Table 122: Address mapping for 128M SDRAM (16Mx8, RBC)

Output address
(ADDROUT)Memory device
connections AHB address to row
address AHB address to
column address

Table 121: Address mapping for 128M SDRAM (8Mx16, RBC)