Datasheet

Section 6 Bus Controller
Rev.6.00 Sep. 27, 2007 Page 165 of 1268
REJ09B0220-0600
6.3 Overview of Bus Control
6.3.1 Area Partitioning
In advanced mode, the bus controller partitions the 16-Mbyte address space into eight areas, 0 to
7, in 2-Mbyte units, and performs bus control for external space in area units. Figure 6.2 shows an
outline of the memory map.
Chip select signals (CS0 to CS7) can be output for each area.
Area 0
(2 Mbytes)
H'000000
H'FFFFFF
H'1FFFFF
H'200000
Area 1
(2 Mbytes)
H'3FFFFF
H'400000
Area 2
(2 Mbytes)
H'5FFFFF
H'600000
Area 3
(2 Mbytes)
H'7FFFFF
H'800000
Area 4
(2 Mbytes)
H'9FFFFF
H'A00000
Area 5
(2 Mbytes)
H'BFFFFF
H'C00000
Area 6
(2 Mbytes)
H'DFFFFF
H'E00000
Area 7
(2 Mbytes)
Advanced mode
Figure 6.2 Overview of Area Partitioning