Renesas H8S/2319 series Hardware Manual page 604

Bit 3—RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in
RAM. When RAMS = 1, all flash memory blocks are program/erase-protected.
Bit 3
RAMS Description
0 Emulation not selected
Program/erase-protection of all flash memory blocks is disabled
1 Emulation selected
Program/erase-protection of all flash memory blocks is enabled
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 17-8).
Table 17-8 Flash Memory Area Divisions
RAM Area
H'FFDC00 to H'FFEBFF
H'000000 to H'000FFF
H'001000 to H'001FFF
H'002000 to H'002FFF
H'003000 to H'003FFF
H'004000 to H'004FFF
H'005000 to H'005FFF
H'006000 to H'006FFF
H'007000 to H'007FFF
Rev. 5.00, 12/03, page 574 of 1088
Block Name
RAM area, 4 kbytes
EB0 (4 kbytes)
EB1 (4 kbytes)
EB2 (4 kbytes)
EB3 (4 kbytes)
EB4 (4 kbytes)
EB5 (4 kbytes)
EB6 (4 kbytes)
EB7 (4 kbytes)
RAMS RAM2
×
0
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
(Initial value)
RAM1 RAM0
× ×
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
×: Don't care