SH7760 Datasheet, PDF (301/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

Bit
Initial
Bit
Name Value
15
MEM
0
MODE
14
A1MPX 0
13
A4MPX 0
12 to 1 
All 0
0
SDBL 1
R/W
R/W
R/W
R/W
R
R/W
Description
A1MPX/A4MPX Enable
Determines whether to use A1MPX and A4MPX or to
use MEMMPX for selecting the MPX interface or the
SRAM interface.
0: MPX or SRAM interface is selected by MEMMPX
1: MPX or SRAM interface is selected by A1MPX and
A4MPX
MPX-Interface Setting for Area 1
Specifies the type of memory connected to area 1. This
setting is validated by the MEMMODE bit.
0: SRAM/byte control SRAM interface is selected for
area 1
1: MPX interface is selected for area 1
MPX-Interface Setting for Area 4
Specifies the type of memory connected to area 4. This
setting is validated by the MEMMODE bit.
0: SRAM/byte control SRAM interface is selected for
area 4
1: MPX interface is selected for area 4
Reserved
These bits are always read as 0. The write value should
always be 0.
Burst Length
Sets the burst length when the synchronous DRAM
interface is used. The burst-length setting is only valid
when the bus width is 32 bits.
0: Burst length is 8
1: Burst length is 4
Rev. 1.0, 02/03, page 251 of 1294