SH7211 Datasheet, PDF (79/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 3 MCU Operating Modes
Section 3 MCU Operating Modes
3.1 Selection of Operating Modes
This LSI has four MCU operating modes and three on-chip flash memory programming modes.
The operating mode is determined by the setting of FWE, MD1, and MD0 pins. Table 3.1 shows
the allowable combinations of these pin settings; do not set these pins in the other way than the
shown combinations.
When power is applied to the system, be sure to conduct power-on reset.
The MCU operating mode can be selected from MCU extension modes 0 to 2 and single chip
mode. For the on-chip flash memory programming mode, boot mode, user boot mode, and user
program mode which are on-chip programming modes are available.
Table 3.1 Selection of Operating Modes
Pin Setting
Mode No. FWE MD1 MD0 Mode Name
Mode 0 0
0
0
MCU extension mode 0
Mode 1 0
0
1
MCU extension mode 1
Mode 2 0
1
0
MCU extension mode 2
Mode 3 0
1
1
Single chip mode
Mode 4* 1
0
0
Boot mode
Mode 5* 1
0
1
User boot mode
Mode 6* 1
1
0
User program mode
Note: * Flash memory programming mode.
On-Chip ROM
Not active
Not active
Active
Active
Active
Active
Active
Bus Width of CS0 Space
SH7211F
16
8
Set by CS0BCR in BSC
⎯
Set by CS0BCR in BSC
Set by CS0BCR in BSC
Set by CS0BCR in BSC
Rev. 2.00 May. 08, 2008 Page 55 of 1200
REJ09B0344-0200