SH7750_08 Datasheet, PDF (457/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 13 Bus State Controller (BSC)
Bit 31—Endian Flag (ENDIAN): Samples the value of the endian specification external pin
(MD5) in a power-on reset by the RESET pin. The endian mode of all spaces is determined by this
bit. ENDIAN is a read-only bit.
Bit 31: ENDIAN
0
1
Description
In a power-on reset, the endian setting external pin (MD5) is low,
designating big-endian mode
In a power-on reset, the endian setting external pin (MD5) is high,
designating little-endian mode
Bit 30—Master/Slave Flag (MASTER): Samples the value of the master/slave specification
external pin (MD7) in a power-on reset by the RESET pin. The master/slave status of all spaces is
determined by this bit. MASTER is a read-only bit.
Bit 30: MASTER
0
1
Description
In a power-on reset, the master/slave setting external pin (MD7) is high,
designating master mode
In a power-on reset, the master/slave setting external pin (MD7) is low,
designating slave mode
Bit 29—Area 0 Memory Type (A0MPX): Samples the value of the area 0 memory type
specification external pin (MD6) in a power-on reset by the RESET pin. The memory type of area
0 is determined by this bit. A0MPX is a read-only bit.
Bit 29: A0MPX
0
1
Description
In a power-on reset, the external pin specifying the area 0 memory type
(MD6) is high, designating the area 0 as SRAM interface
In a power-on reset, the external pin specifying the area 0 memory type
(MD6) is low, designating the area 0 as MPX interface
Bits 28, 27, 26*, 23, 22, 16*, and 1—Reserved: These bits are always read as 0, and should only
be written with 0.
Note: * SH7750, SH7750S only.
Rev.7.00 Oct. 10, 2008 Page 373 of 1074
REJ09B0366-0700