SH7147 Datasheet, PDF (75/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 3 MCU Operating Modes
3.3 Operating Modes
3.3.1 Mode 0 (MCU Extension Mode 0)
CS0 space becomes external memory spaces with 8-bit bus width.
3.3.2 Mode 2 (MCU Extension Mode 2)
The on-chip ROM is active and CS0 space can be used in this mode.
3.3.3 Mode 3 (Single Chip Mode)
All ports can be used in this mode, however the external address cannot be used.
Rev. 3.00 Oct. 06, 2008 Page 51 of 1080
REJ09B0230-0300