3069RF-ZTAT Datasheet, PDF (160/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Table 6.3 Bus Specifications for Each Area (Basic Bus Interface)
ABWCR ASTCR WCRH/WCRL
ABWn ASTn Wn1 Wn0
0
0
—
—
1
0
0
1
1
0
1
1
0
—
—
1
0
0
1
1
0
1
Note: n = 7 to 0
Bus Specifications (Basic Bus Interface)
Bus Width Access States
Program Wait States
16
2
0
3
0
1
2
3
8
2
0
3
0
1
2
3
6.3.3 Memory Interfaces
The H8/3069R memory interfaces comprise a basic bus interface that allows direct connection of
ROM, SRAM, and so on; a DRAM interface that allows direct connection of DRAM; and a burst
ROM interface that allows direct connection of burst ROM. The interface can be selected
independently for each area.
An area for which the basic bus interface is designated functions as normal space, an area for
which the DRAM interface is designated functions as DRAM space, and area 0 for which the
burst ROM interface is designated functions as burst ROM space.
Rev. 5.0, 09/04, page 138 of 978