R5F21134DFP#U0 Renesas Electronics America, R5F21134DFP#U0 Datasheet - Page 202

• Manufacturer Part Number: R5F21134DFP#U0
• Description: IC R8C MCU FLASH 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/13r

Specifications of R5F21134DFP#U0

• Core Size: 16-Bit
• Program Memory Size: 16KB (16K x 8)
• Oscillator Type: Internal
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 22
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• No. Of I/o's: 22
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1024Byte
• Cpu Speed: 20MHz
• No. Of Timers: 16
• Digital Ic Case: RoHS Compliant
• Controller Family/series: R8C/13
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 19.1 Example of Procedure for Changing Interrupt Factor
19.2.5 Changing Interrupt Factor
The IR bit in the interrupt control register may be set to “1” (interrupt requested) when the interrupt
factor is changed. When using an interrupt, set the IR bit to “0” (interrupt not request) after changing
the interrupt factor. In addition, the changes of interrupt factors include all elements that change the
interrupt factors assigned to individual software interrupt numbers, polarities, and timing. Therefore,
when a mode change of the peripheral functions involves interrupt factors, edge polarities, and timing,
set the IR bit to “0” (interrupt not requested) after the change. Refer to each peripheral function for the
interrupts caused by the peripheral functions.
Figure 19.1 shows an Example of Procedure for Changing Interrupt Factor.
Jan 27, 2006
N O T E S :
• I R b i t : T h e i n t e r r u p t c o n t r o l r e g i s t e r b i t o f a n i n t e r r u p t w h o s e
1 . E x e c u t e t h e a b o v e s e t t i n g i n d i v i d u a l l y . D o n o t e x e c u t e t w o
2 . U s e t h e I f l a g f o r t h e I N T i ( i = 0 t o 3 ) i n t e r r u p t .
3 . R e f e r t o “ 1 9 . 2 . 6 C h a n g i n g I n t e r r u p t C o n t r o l R e g i s t e r ” f o r t h e
page 189 of 205
o f t h e i n t e r r u p t w h o s e f a c t o r i s c h a n g e d .
o r m o r e s e t t i n g s a t o n c e ( b y o n e i n s t r u c t i o n ) .
T o p r e v e n t i n t e r r u p t r e q u e s t s f r o m b e i n g g e n e r a t e d w h e n
u s i n g p e r i p h e r a l f u n c t i o n i n t e r r u p t s o t h e r t h a n t h e I N T i
i n t e r r u p t f a c t o r . I n t h i s c a s e , u s e t h e I f l a g w h e n a l l
m a s k a b l e i n t e r r u p t s c a n b e d i s a b l e d . W h e n a l l m a s k a b l e
i n t e r r u p t s c a n n o t b e d i s a b l e d , u s e t h e I L V L 0 t o I L V L 2 b i t s
i n s t r u c t i o n s t o b e u s e d a n d t h e i r u s a g e n o t e s .
S e t I R b i t t o “ 0 ” ( i n t e r r u p t n o t r e q u e s t e d ) u s i n g
f a c t o r i s c h a n g e d
C h a n g e i n t e r r u p t f a c t o r ( i n c l u d i n g m o d e o f
I n t e r r u p t f a c t o r c h a n g e
p e r i p h e r a l f u n c t i o n s )
D i s a b l e I n t e r r u p t
E n a b l e i n t e r r u p t
Change completed
M O V i n s t r u c t i o n
(2 , 3 )
(2 , 3 )
(3 )
19. Usage Notes