Table 13-10. Memory Addressing Example - Cirrus Logic EP93 Series User Manual

that AD23 is not used (needed) in either the row or column address, and this demonstrates
why the memory map for synchronous memory devices may be non-continuous.
Muxing
B1
Scheme
ROW /
A27
16-Bits
BANK
Data
COLUMN -
Table 13-11 shows the continuous address ranges used by a variety of different synchronous
memory configurations. Note that in the "Continuous Address Range Per Segment" column,
the value N can be 0x0, 0xC, 0xD, 0xE or 0xF as shown in
DS785UM1

Table 13-10. Memory Addressing Example

AD AD AD AD
B0
13 12 11 10
A26 A22 A21 A20 A19
- - - - AP
Copyright 2007 Cirrus Logic
SDRAM, SyncROM, and SyncFLASH Controller
AD AD AD AD AD
9 8 7 6 5
A18 A17 A16 A15 A14
A25 A24 A8 A7 A6
Table 13-12.
EP93xx User's Guide
AD AD AD AD AD
4 3 2 1 0
A13 A12 A11 A10 A9
A5 A4 A3 A2 A1
13-11
13