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R01UH0336EJ0102 Rev.1.02
Page 298 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 8 Reset Controller
8.3.3
Details of Software Reset Control Registers
(1)
SWRESA - Software Reset Register
This register is used to generate a software reset SWRES.
Access
This register can only be written in 8-bit units. When read, the value returned is
00
H
.
Writing to this register is protected by a special sequence of instructions by
using the protection command register CSCPCMD. For details, refer to the
Section 8.2.10, Protection for Registers of the Reset Controller.
Address
FF42 002C
H
Initial value
00
H
This register is initialized by a reset from any source.
Caution
Do not use the software reset when data flash memory is operated.
Note
After 1 is written to this register, actual execution of the reset takes up to two
cycles of the internal oscillator.
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
SWRESA
R
R
R
R
R
R
R
W
Table 8-6
SWRESA Register Contents
Bit Position
Bit Name
Function
0
SWRESA
Software reset control
0: No effect (writing 0 to the bit does not lead to a software reset).
1: A software reset SWRES is generated.
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