HD64F2168 Datasheet, PDF (93/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 3 MCU Operating Modes
3.1 Operating Mode Selection
This LSI supports one operating mode (mode 2). 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
CPU Operating
Mode
MD2 MD1 MD0 Mode
Description
2
1 1 0 Advanced
Extended mode with on-chip ROM
Single-chip mode
Mode 2 is single-chip mode after a reset. The CPU can switch to extended mode by setting bit
EXPE in MDCR to 1.
Modes 0, 1, 3, 5, and 7 are not available in this LSI. Modes 4 and 6 are operating mode for a
special purpose. Thus, mode pins should be set to enable mode 2 in normal program execution
state. Mode pins should not be changed during operation.
Rev. 3.00, 03/04, page 53 of 830