HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 106

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

3.3.6
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled.
Ports A, B, and C function as input ports immediately after a reset. These pins can be set to output
addresses by setting the corresponding data direction register (DDR) bits to 1. Port D functions as
a data bus, and part of port F carries bus control signals.
The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if at
least one area is designated for 16-bit access by the bus controller, the bus mode switches to 16
bits and port E becomes a data bus.
3.3.7
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled,
but external addresses cannot be accessed.
All I/O ports are available for use as input/output ports.
3.3.8
Modes 8 and 9 are not supported and must not be set.
3.3.9
This is a flash memory boot mode. For details, see section 19, ROM.
Except for the fact that flash memory programming and erasing can be performed, operation in
this mode is the same as in advanced expanded mode with on-chip ROM enabled.
3.3.10
This is a flash memory boot mode. For details, see section 19, ROM.
Except for the fact that flash memory programming and erasing can be performed, operation in
this mode is the same as in advanced single-chip mode.
3.3.11
Modes 12 and 13 are not supported and must not be set.
Rev.4.00 Sep. 07, 2007 Page 76 of 1210
REJ09B0245-0400
Mode 6 (Expanded Mode with On-Chip ROM Enabled)
Mode 7 (Single-Chip Mode)
Modes 8 and 9 (H8S/2338 F-ZTAT Only)
Mode 10 (H8S/2338 F-ZTAT Only)
Modes 12 and 13 (H8S/2338 F-ZTAT Only)
Mode 11 (H8S/2338 F-ZTAT Only)