SH7080_09 Datasheet, PDF (307/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 9 Bus State Controller (BSC)
Bit
Bit Name
14 to 12 TYPE[2:0]
Initial
Value R/W
000 R/W
11
⎯
0
R
Description
Memory Type Specification
Specify the type of memory connected to the space.
000: Normal space
001: Burst ROM (clock asynchronous)
010: MPX-I/O
011: SRAM with byte selection
100: SDRAM
101: PCMCIA
110: Burst MPX-I/O
111: Burst ROM (clock synchronous)
For the memory type for each area, see tables 9.2 to
9.15.
Notes: 1. When burst MPX-I/O is selected for area 6, do
not set areas 2 and 3 for SDRAM space.
2. SDRAM can be selected only for areas 2 and
3. If the SDRAM is only to be connected in
one area, select area 3 as the SDRAM space.
In this case, specify area 2 as normal space
or SRAM with byte selection.
Reserved
This bit is always read as 0. The write value should
always be 0.
Rev. 4.00 Dec. 15, 2009 Page 247 of 1558
REJ09B0181-0400