r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 72
r5f21368sdfp
Manufacturer Part Number
r5f21368sdfp
Description
Renesas Mcu R8c Family / R8c/3xt-a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21368SDFP.pdf
(760 pages)
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Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
5.4
5.5
Figure 5.2
Table 5.4
5.5.1
PRC0
PRC1
PRC2
PRC3
The protection function protects important registers from being easily rewritten if a program runs out of control.
The following registers are protected by the PRCR register.
The option function select area allows the user to select the MCU state after a reset and to disable rewriting in
parallel I/O mode.
This area is allocated at addresses 0FFFFh (highest of the reset vector in the fixed vector table) and address
0FFDBh.
Figure 5.2 shows the Option Function Select Area.
Bit
Protection
Option Function Select Area
Overview
Preliminary document
Specifications in this document are tentative and subject to change.
PRCR Register Bits and Registers Protected
Option Function Select Area
Registers CM0, CM1, CM3, CM4, OCD, FRA0, FRA2, and CPSRF
Registers PM0 and PM1
PD0 register
Registers OCVREFCR, VCA2, VD1LS, VW0C, VW1C, VW2C, and SVDC
Option function select area
0FFDBh to 0FFD8h
0FFFFh to 0FFFCh
Address
OFS2
OFS
Register Protected
Reserved area
Reset vector
4 bytes
5. System Control
Page 41 of 725
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