Section 3 Mcu Operating Modes; Operating Mode Selection - Renesas H8S Series Hardware Manual

3.1

Operating Mode Selection

This LSI supports five operating modes (modes 2 to 4, 6, and 7). The operating mode is
determined by the setting of the mode pins (MD2, MD1, and MD0). Table 3.1 shows the MCU
operating mode selection.
Table 3.1 MCU Operating Mode Selection
MCU Operating
Mode MD2 MD1 MD0
2 0
3 0
4 1
6 1
7 1
Modes 2 and 3 are single-chip mode.
Modes 0, 1, and 5 are not available in this LSI. Modes 4, 6, and 7 are operating modes for a
special purpose. Thus, mode pins should be set to enable mode 2 or 3 in the normal program
execution state. Mode pin settings should not be changed during operation.
Mode 4 is a boot mode for programming or erasing the flash memory. For details, see section 21,
Flash Memory (0.18-µm F-ZTAT Version).
Modes 6 and 7 are on-chip emulation modes. In these modes, this LSI is controlled by an on-chip
emulator (E10A) via the JTAG, thus enabling on-chip emulation.

Section 3 MCU Operating Modes

CPU Operating
Mode
1 0 Advanced
1 1 Normal

0 0
1 0 Emulation
1 1 Emulation

Section 3 MCU Operating Modes

Description
Single-chip mode
Single-chip mode
Flash memory
programming/erasing
On-chip emulation mode Enabled
On-chip emulation mode Enabled
Rev. 3.00 Jul. 14, 2005 Page 59 of 986
On-Chip ROM
Enabled
Enabled

REJ09B0098-0300