R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 43

• Manufacturer Part Number: R5F21122FP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/12r

Specifications of R5F21122FP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/12 Group
Rev.1.20
REJ09B0110-0120
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
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.
P r o c e s s o r m o d e r e g i s t e r 0
P r o c e s s o r m o d e r e g i s t e r 1
b 7
b 7
0
Processor mode
N O T E S :
NOTES:
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 . )
Jan 27, 2006
1. Set the PRC1 bit in the PRCR register to "1" (write enable) before writing to this register.
b 6
b 6
b 5
b5
b 4
b4
b 3
b 3
b 2
b2
0
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b 1
0
b1
0 0
b 0
b0
SFR, internal RAM, internal ROM
B i t s y m b o l
B i t s y m b o l
( b 6 - b 3 )
P M 1 2
(b2-b0)
PM10
(b7-b4)
( b 1 )
( b 7 )
P M 0 3
S y m b o l
P M 1
Symbol
PM0
( 1 )
( 1 )
Access space
Data area access enable
bit
R e s e r v e d 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
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
S o f t w a r e r e s e t b i t
Reserved 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 .
A d d r e s s
B i t n a m e
0 0 0 5
Address
B i t n a m e
( 2 )
0004
1 6
16
A f t e r r e s e t
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 : D i s a b l e d
1 : E n a b l e d
0 0
S e t t o “ 0 ”
Set to “0”
All pins are I/O ports or peripheral
function I/O pins
Set to “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 ” .
1 6
Pins which are assigned I/O ports
After reset
00
F u n c t i o n
16
Function
( 2 )
8. Processor Mode
R W
R W
R W
R W
R W
R W
R W
R W