h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 712

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 20 ROM
Bit 3—RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in
RAM. When RAMS = 1, all flash memory block are program/erase-protected.
Bits 2 to 0—Flash Memory Area Selection (RAM2 to RAM0): These bits are used together
with bit 3 to select the flash memory area to be overlapped with RAM. (See table 20.5.)
Table 20.5 Flash Memory Area Divisions
Rev. 5.00 Sep 22, 2005 page 686 of 1136
REJ09B0257-0500
Bit 3
RAMS
0
1
Addresses
H'FFE000 to H'FFE3FF
H'000000 to H'0003FF
H'000400 to H'0007FF
H'000800 to H'000BFF
H'000C00 to H'000FFF
Description
Emulation not selected
Program/erase-protection of all flash memory blocks is disabled
Emulation selected
Program/erase-protection of all flash memory blocks is enabled
RAM area 1 kbyte
Block Name
EB0 (1 kbyte)
EB1 (1 kbyte)
EB2 (1 kbyte)
EB3 (1 kbyte)
RAMS
0
1
1
1
1
RAM2
*
0
0
1
1
RAM1
*
0
1
0
1
(Initial value)
*: Don't care
RAM0
*
*
*
*
*