h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 179

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

7.3
7.3.1
In advanced mode, the bus controller partitions the 16 Mbytes address space into eight areas, 0 to
7, in 2-Mbyte units, and performs bus control for external space in area units. In normal mode * , it
controls a 64-kbyte address space comprising part of area 0. Figure 7.2 shows an outline of the
memory map.
Note: * Not available in the H8S/2646 Group.
Note: * Not available in the H8S/2646.
Overview of Bus Control
Area Partitioning
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
(1)
Figure 7.2 Overview of Area Partitioning
Advanced mode
(2 Mbytes)
(2 Mbytes)
(2 Mbytes)
(2 Mbytes)
(2 Mbytes)
(2 Mbytes)
(2 Mbytes)
(2 Mbytes)
Area 0
Area 1
Area 2
Area 3
Area 4
Area 5
Area 6
Area 7
Rev. 5.00 Sep 22, 2005 page 153 of 1136
H'0000
H'FFFF
(2)
Normal mode *
Section 7 Bus Controller
REJ09B0257-0500