SH7046 Datasheet, PDF (83/611 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7046 Series

Section 3 MCU Operating Modes
Section 3 MCU Operating Modes
3.1 Selection of Operating Modes
This LSI has one operating modes and four clock modes. The operating mode is determined by the
setting of MD3–MD0, and FWP pins. Do not change these pins during LSI operation (while
power is on). Do not set these pins in the other way than the combination shown in Table 3.1.
Table 3.1 Selection of Operating Modes
Pin Setting
Mode No. FWP MD3 MD2 MD1 MD0 Mode Name
On-Chip ROM
Mode 0^*3 1
x
x
0
0
MCU extension mode 0 Not Active
Mode 1^*3 1
x
x
0
1
MCU extension mode 1 Not Active
Mode 2^*3 1
x
x
1
0
MCU extension mode 2 Active
Mode 3 1
x
x
1
1
Single chip mode
*³
0
x
x
0
0
Boot mode^*2
*²
0
x
x
0
1
*³
0
x
x
1
0
User programming
*²
0
x
x
1
1
mode^*2
Active
Active
Active
Notes: The symbol x means “Don’t care.”
1. Only the mode3 is supported in normal operation in SH7046.
2. User programming mode for flash memory. Supported in only F-ZTAT version.
3. Cannot be used for this LSI.
There are two modes as the MCU operating modes: MCU extension mode and single chip mode.
There are two modes to program the flash memory (on-board programming mode): boot mode and
user programming mode.
Rev. 4.00 Dec 05, 2005 page 39 of 564
REJ09B0270-0400