SH7144_08 Datasheet, PDF (94/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

3. MCU Operating Modes
3.3 Operating Modes
3.3.1 Mode 0 (MCU Extension Mode 0)
CS0 space and CS4 space become external memory spaces with 8-bit bus width in SH7144 or 16-
bit bus width in SH7145.
3.3.2 Mode 1 (MCU Extension Mode 1)
CS0 space and CS4 space become external memory spaces with 16-bit bus width in SH7144 or
32-bit bus width in SH7145.
3.3.3 Mode 2 (MCU Extension Mode 2)
The on-chip ROM is active and CS0 space can be used in this mode.
3.3.4 Mode 3 (Single Chip Mode)
All ports can be used in this mode, however the external address cannot be used.
3.3.5 Clock Mode
The input waveform frequency can be used as is, doubled or quadrupled as system clock
frequency in mode 0 to mode 3.
Rev.4.00 Mar. 27, 2008 Page 50 of 882
REJ09B0108-0400