H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 195

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

6.5
6.5.1
When the H8S/2350 Group is in advanced mode, external space areas 2 to 5 can be designated as
DRAM space, and DRAM interfacing performed. With the DRAM interface, DRAM can be
directly connected to the H8S/2350 Group. A DRAM space of 2, 4, or 8 Mbytes can be set by
means of bits RMTS2 to RMTS0 in BCRH. Burst operation is also possible, using fast page mode.
6.5.2
Areas 2 to 5 are designated as DRAM space by setting bits RMTS2 to RMTS0 in BCRH. The
relation between the settings of bits RMTS2 to RMTS0 and DRAM space is shown in table 6.5.
Possible DRAM space settings are: one area (area 2), two areas (areas 2 and 3), and four areas
(areas 2 to 5).
Table 6.5
RMTS2
0
DRAM Interface
Overview
Setting DRAM Space
Settings of Bits RMTS2 to RMTS0 and Corresponding DRAM Spaces
RMTS1
0
1
RMTS0
1
0
1
Area 5
Normal space
Normal space
Rev. 3.00 Sep 15, 2006 page 161 of 988
Area 4
DRAM space
Area 3
Section 6 Bus Controller
DRAM space
REJ09B0330-0300
DRAM space
Area 2