D12320VF25V Datasheet, PDF (186/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 6 Bus Controller
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 area partitioning.
Chip select signals (CS0 to CS7) can be output for each area.
H'000000
H'1FFFFF
H'200000
H'3FFFFF
H'400000
H'5FFFFF
H'600000
H'7FFFFF
H'800000
H'9FFFFF
H'A00000
H'BFFFFF
H'C00000
H'DFFFFF
H'E00000
H'FFFFFF
Area 0
(2 Mbytes)
Area 1
(2 Mbytes)
Area 2
(2 Mbytes)
Area 3
(2 Mbytes)
Area 4
(2 Mbytes)
Area 5
(2 Mbytes)
Area 6
(2 Mbytes)
Area 7
(2 Mbytes)
Advanced mode
Figure 6.2 Overview of Area Partitioning
Rev.7.00 Feb. 14, 2007 page 152 of 1108
REJ09B0089-0700