Table 7-7. 16-Bit Wide Data Bus Address Mapping, Sdram (Rbc) - Sharp LH79524 User Manual

LH79524/LH79525 User's Guide
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
External Address Pin, A[14:0]
AHB Address To Row Address
AHB Address To Column Address
NOTE: **The EMC always transfers 32 bits of data in each transaction. For chip selects with a 16-bit wide

Table 7-7. 16-bit Wide Data Bus Address Mapping, SDRAM (RBC)

16-BIT WIDE DEVICE 16M SDRAM (1M × 16, RBC)
9/BA1
9/BA1
16-BIT WIDE DEVICE 16M SDRAM (2M × 8, RBC)
16-BIT WIDE DEVICE 64M SDRAM (4M × 16, RBC)
9/BA1
9/BA1
16-BIT WIDE DEVICE 64M SDRAM (8M × 8, RBC)
11/BA1
11/BA1
16-BIT WIDE DEVICE 128M SDRAM (8M × 16, RBC)
11/BA1
11/BA1
16-BIT WIDE DEVICE 128M SDRAM (16M × 8, RBC)
11/BA1
11/BA1
16-BIT WIDE DEVICE 256M SDRAM (16M × 16, RBC)
11/BA1
11/BA1
16-BIT WIDE DEVICE 256M SDRAM (32M × 8, RBC)
11/BA1
11/BA1
16-BIT WIDE DEVICE 512M SDRAM (32M × 16, RBC)
11/BA1
11/BA1
16-BIT WIDE DEVICE 512M SDRAM (64M × 8, RBC)
13/BA1
13/BA1
data bus, the EMC performs two transfers: 1) a column transfer with the lowest bit set to 0, and 2) a
column transfer with the lowest bit set to 1.
14 13 12 11 10
— — — 20
— — — AP
14 13 12 11 10
— 10/BA0 — — 21
— 10/BA0 — — AP
14 13 12 11 10
10/BA0 — 22 21
10/BA0 — — AP
14 13 12 11 10
10/BA0 — 23 22
10/BA0 — — AP
14 13 12 11 10
10/BA0 — 23 22
10/BA0 — — AP
14 13 12 11 10
12/BA0 — 24 23
12/BA0 — — AP
14 13 12 11 10
10/BA0 24 23 22
12/BA0 — — AP
14 13 12 11 10
12/BA0 25 24 23
12/BA0 — — AP
14 13 12 11 10
12/BA0 25 24 23
12/BA0 — — AP
14 13 12 11 10
12/BA0 26 25 24
12/BA0 — 11 AP
Version 1.0
External Memory Controller
9 8 7 6 5 4
19 18 17 16 15 14 13
— — 8 7 6 5
9 8 7 6 5 4
20 19 18 17 16 15 14
— 9 8 7 6 5
9 8 7 6 5 4
20 19 18 17 16 15 14
— — 8 7 6 5
9 8 7 6 5 4
21 20 19 18 17 16 15
— 9 8 7 6 5
9 8 7 6 5 4
21 20 19 18 17 16 15
— 9 8 7 6 5
9 8 7 6 5 4
22 21 20 19 18 17 16
10 9 8 7 6 5
9 8 7 6 5 4
21 20 19 18 17 16 15
— 9 8 7 6 5
9 8 7 6 5 4
22 21 20 19 18 17 16
10 9 8 7 6 5
9 8 7 6 5 4
22 21 20 19 18 17 16
10 9 8 7 6 5
9 8 7 6 5 4
23 22 21 20 19 18 17
10 9 8 7 6 5
3 2 1 0
12 11 10
4 3 2 **
3 2 1 0
13 12 11
4 3 2 **
3 2 1 0
13 12 11
4 3 2 **
3 2 1 0
14 13 12
4 3 2 **
3 2 1 0
14 13 12
4 3 2 **
3 2 1 0
15 14 13
4 3 2 **
3 2 1 0
14 13 12
4 3 2 **
3 2 1 0
15 14 13
4 3 2 **
3 2 1 0
15 14 13
4 3 2 **
3 2 1 0
16 15 14
4 3 2 **
7-25