Datasheet

Section 7 Bus Controller
Page 194 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
7.3 Overview of Bus Control
7.3.1 Area Partitioning
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. A chip select signal
(CS0 to CS7) can be output for each area. 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/2633 Group.
Area 0
(2 Mbytes)
H'000000
H'FFFFFF
(1) (2)
H'0000
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)
H'FFFF
Advanced mode Normal mode*
Note: * Not available in the H8S/2633 Group.
Figure 7.2 Overview of Area Partitioning