R8C33A Datasheet, PDF (188/617 Pages) Renesas Technology Corp – MCU M16C FAMILY / R8C/Tiny SERIES

Under development ^{Preliminary specification}
Specifications in this manual are tentative and subject to change.
R8C/33A Group
13. Option Function Select Area
13. Option Function Select Area
13.1 Overview
The option function select area is used to select the MCU state after a reset, the function to prevent rewriting in
parallel I/O mode, or the watchdog timer operation. The reset vector highest-order-address, 0FFFFh and 0FFDBh,
are assigned as the option function select area. Figure 13.1 shows the Option Function Select Area.
Option function select area
Address
0FFDBh to 0FFD8h OFS2 Reserved area
0FFFFh to 0FFFCh OFS Reset vector
Figure 13.1 Option Function Select Area
4 bytes
REJ09B0455-0010 Rev.0.10 Feb 29, 2008
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