Chapter 8. Processor Mode - Renesas M16C Series Hardware Manual

R8C/11 Group
8. Processor Mode
8.1 Types of Processor Mode
The processor mode is single-chip mode. Table 8.1 shows the features of the processor mode. Figure
8.1 shows the PM0 and PM1 register.
Table 8.1 Features of Processor Mode
Processor mode
Single-chip mode
P r o c e s s o r m o d e r e g i s t e r 0
b 7 b6 b 5 b4 b 3
N O T E S :
1 . S e t t h e P R C 1 b i t i n t h e P R C R r e g i s t e r t o " 1 " ( w r i t e e n a b l e ) b e f o r e w r i t i n g t o t h i s r e g i s t e r .
P r o c e s s o r m o d e r e g i s t e r 1
b7 b 6 b 5 b4 b 3
0
N O T E S :
1 . S e t t h e P R C 1 b i t i n t h e P R C R r e g i s t e r t o " 1 " ( w r i t e e n a b l e ) b e f o r e w r i t i n g t o t h i s r e g i s t e r .
2 . P M 1 2 b i t i s s e t t o " 1 " b y w r i t i n g a " 1 " i n a p r o g r a m . ( W r i t i n g a " 0 " h a s n o e f f e c t . )
Figure 8.1 PM0 Register and PM1 Register
Rev.1.20 Jan 27, 2006
REJ09B0062-0120
Access space
SFR, internal RAM, internal ROM
(1 )
Symbol
b2 b 1 b0
PM0
0 0
0
B i t s y m b o l
Reserved bit
( b 2 - b 0 )
P M 0 3 S o f t w a r e r e s e t b i t
N o t h i n g i s a s s i g n e d . W h e n w r i t e , s e t t o " 0 " . W h e n r e a d , i t s
( b 7 - b 4 )
c o n t e n t i s " 0 " .
(1 )
b 2 b 1 b 0 S y m b o l
P M 1
0
0
B i t s y m b o l
R e s e r v e d b i t
( b 1 - b 0 )
W D T i n t e r r u p t / r e s e t
PM12
s w i t c h b i t
Nothing is assigned. When write, set to "0". When read, its
( b 6 - b 3 )
content is "0".
R e s e r v e d b i t
(b7)
page 45 of 204
Pins which are assigned I/O ports
All pins are I/O ports or peripheral
function I/O pins
Address After reset
0004
16
B i t n a m e
M u s t s e t t o " 0 "
S e t t i n g t h i s b i t t o " 1 " r e s e t s t h e
m i c r o c o m p u t e r . W h e n r e a d , i t s
c o n t e n t i s " 0 " .
A d d r e s s A f t e r r e s e t
0 0 0 5 0 0
1 6 1 6
B i t n a m e
S e t t o " 0 "
0 : W a t c h d o g t i m e r i n t e r r u p t
1 : W a t c h d o g t i m e r r e s e t
S e t t o " 0 "
8. Processor Mode
00
16
Function R W
R W
RW
Function
RW
RW
RW
(2 )
R W