H8SLASH3028F datasheet(170/923 Pages) RENESAS

部件名	H8/3028F

功能描述	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	923 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

170 / 923 page

Rev. 2.00, 09/03, page 140 of 890

Areas 2 to 5: In external expansion mode, areas 2 to 5 are entirely external space.

When area 2 to 5 external space is accessed, signals

2 to CS5 can be output.

Basic bus interface or DRAM interface can be selected for areas 2 to 5. With the DRAM

interface, signals

2 to CS5 are used as RAS signals.

The size of areas 2 to 5 is 128 kbytes in modes 1 and 2, and 2 Mbytes in modes 3, 4, and 5.

Area 7: Area 7 includes the on-chip RAM and registers. In external expansion mode, the space

excluding the on-chip RAM and registers is external space. The on-chip RAM is enabled when

the RAME bit in the system control register (SYSCR) is set to 1; when the RAME bit is cleared to

0, the on-chip RAM is disabled and the corresponding space becomes external space .

When area 7 external space is accessed, the

7 signal can be output.

Only the basic bus interface can be used for the area 7 memory interface.

The size of area 7 is 128 kbytes in modes 1 and 2, and 2 Mbytes in modes 3, 4, and 5.

H8/3028F 数据表(PDF) 170 Page - Renesas Technology Corp