Sharp LH79524 - Table 7-6. 32-Bit Wide Data Bus Address Mapping, SDRAM (BRC)

LH79524/LH79525 User’s Guide External Memory Controller
Version 1.0 7-23
NOTE: The EMC does a constant burst of 8 when configured to access 16 bit memory devices. Similarly it
does a burst of 4 when configured to access 32-bit memory devices.
32-BIT DEVICE 64M SDRAM (8M × 8, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 11/BA1 12/BA0 — 24 23 22 21 20 19 18 17 16 15 14 13
AHB Address To Column Address11/BA112/BA0——AP—1098765432
32-BIT DEVICE 128M SDRAM (4M × 32, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 11/BA1 10/BA0 — 23 22 21 20 19 18 17 16 15 14 13 12
AHB Address To Column Address11/BA110/BA0——AP——98765432
32-BIT DEVICE 128M SDRAM (8M × 16, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 11/BA1 12/BA0 — 24 23 22 21 20 19 18 17 16 15 14 13
AHB Address To Column Address11/BA112/BA0——AP—1098765432
32-BIT DEVICE 128M SDRAM (16M × 8, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 13/BA1 12/BA0 — 25 24 23 22 21 20 19 18 17 16 15 14
AHB Address To Column Address13/BA112/BA0——AP111098765432
32-BIT DEVICE 256M SDRAM 8M × 32, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 11/BA1 10/BA0 24 23 22 21 20 19 18 17 16 15 14 13 12
AHB Address To Column Address11/BA110/BA0——AP——98765432
32-BIT DEVICE 256M SDRAM 16M × 16, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 11/BA1 12/BA0 25 24 23 22 21 20 19 18 17 16 15 14 13
AHB Address To Column Address11/BA112/BA0——AP—1098765432
32-BIT DEVICE 256M SDRAM 32M × 8, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 13/BA1 12/BA0 26 25 24 23 22 21 20 19 18 17 16 15 14
AHB Address To Column Address13/BA112/BA0——AP111098765432
32-BIT DEVICE 512M SDRAM 32M × 16, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 13/BA1 12/BA0 26 25 24 23 22 21 20 19 18 17 16 15 14
AHB Address To Column Address13/BA112/BA0——AP111098765432
32-BIT DEVICE 512M SDRAM 64M × 8, RBC)
External Address Pin, A[14:0] 14 13 1211109876543210
AHB Address To Row Address 13/BA1 14/BA0 27 26 25 24 23 22 21 20 19 18 17 16 15
AHB Address To Column Address13/BA114/BA0—12AP111098765432
Table 7-6. 32-bit Wide Data Bus Address Mapping, SDRAM (BRC)
32-BIT DEVICE 16M SDRAM (1M × 16, BRC)
External Address Pin, A[14:0] 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
AHB Address To Row Address 21/BA1 — — — 20 19 18 17 16 15 14 13 12 11 10
AHB Address To Column Address 21/BA1 — — — AP — — 9 8 7 6 5 4 3 2
32-BIT DEVICE 16M SDRAM (2M × 8, BRC)
External Address Pin, A[14:0] 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
AHB Address To Row Address — 22/BA0 — — 21 20 19 18 17 16 15 14 13 12 11
AHB Address To Column Address — 22/BA0 — — AP — 10 9 8 7 6 5 4 3 2
Table 7-5. 32-bit Wide Data Bus Address Mapping, SDRAM (RBC) (Cont’d)