R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 56

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
8. Processor Mode
Table 8.1 Features of Processor Mode
Figure 8.1 PM0 Register and PM1 Register
Single-chip mode
8.1 Types of Processor Mode
Processor mode
Processor mode register 0
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.
b7
P r o c e s s o r m o d e r e g i s t e r 1
Jan 27, 2006
b 7
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 . )
b6
NOTES:
b 6
1. Set the PRC1 bit in the PRCR register to "1" (write enable) before writing to this register.
b5
b 5
b4
b 4
b3
b 3
b2
0
page 45 of 205
b 2
b1
0 0
b 1
0
b0
SFR, internal RAM, internal ROM
b 0
Bit symbol
(b2-b0)
(b7-b4)
PM03
Symbol
PM0
Bit symbol
(1)
( b 6 - b 3 )
P M 1 2
P M 1 0
( b 1 )
(b7)
S y m b o l
P M 1
( 1 )
Access space
Software reset bit
Reserved bit
Nothing is assigned. When write, set to “0”. When read, its
content is "0".
Data area access enable
bit
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
c o n t e n t i s 0 .
W D T i n t e r r u p t / r e s e t
s w i t c h b i t
R e s e r v e d b i t
R e s e r v e d b i t
Address
Bit name
0004
16
A d d r e s s
B i t n a m e
0 0 0 5
(
2 )
1 6
Setting this bit to “1” resets the
microcomputer. When read, its
content is “0”.
Set to “0”
All pins are I/O ports or peripheral
function I/O pins
A f t e r r e s e t
After reset
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
0 : Disabled
1 : Enabled
00
0 0
Set to “0”
Set to “0”
Pins which are assigned I/O ports
16
1 6
Function
F u n c t i o n
(
2 )
RW
RW
RW
8. Processor Mode
R W
R W
R W
R W
R W