HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 144

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 3 MCU Operating Modes
In the flash memory version, user program mode is entered by setting the SWE bit of FLMCR1 to
1.
3.3.5
This mode is a user boot mode of the flash memory. This mode is the same as mode 7, except for
the programming and erasure on the flash memory. Mode 5 is only available in the H8S/2378
0.18μm F-ZTAT Group and H8S/2378R 0.18μm F-ZTAT Group.
3.3.6
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled,
and the chip starts up in single-chip mode. External address space cannot be used in single-chip
mode.
The initial mode after a reset is single-chip mode, with all I/O ports available for use as
input/output ports. However, the mode can be switched to externally expanded mode by setting 1
to the EXPE bit of SYSCR and then the external address space is enabled. When externally
expanded mode is selected, all areas are initially designated as 16-bit access space. The functions
of pins in ports A to G are the same as in externally expanded mode with on-chip ROM enabled.
In the flash memory version, user program mode is entered by setting the SWE bit of FLMCR1 to
1.
Rev.7.00 Mar. 18, 2009 page 76 of 1136
REJ09B0109-0700
Mode 5
Mode 7