Datasheet

697
Bit 2—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. This bit is
ignored when the on-chip ROM is disabled.
Bit 2: RAMS Description
0 Emulation not selected
Program/erase protect of all flash memory blocks is disabled (Initial value)
1 Emulation selected
Program/erase protect of all flash memory blocks is enabled
Bits 1 and 0—Flash Memory Area Selection (RAM1, RAM0): These bits are used together
with bit 2 to select the flash memory area to be overlapped with RAM. (See table 22.5.)
Table 22.5 Separation of the Flash Memory Area
Addresses Block Name RAMS RAM1 RAM0
H'FFF800–H'FFFBFF RAM area 1kB 0 **
H'03F000–H'03F3FF EB8 (1kB) 1 0 0
H'03F400–H'03F7FF EB9 (1kB) 1 0 1
H'03F800–H'03FBFF EB10(1kB) 1 1 0
H'03FC00–H'03FFFF EB11(1kB) 1 1 1