R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 60

• 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
Figure 10.13 TXMR Register and TYZMR Register when INT1 and INT2 Interrupt Used
10.2.3 INT1 Interrupt and INT2 Interrupt
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INT1 interrupts are triggered by INT1 inputs. The edge polarity is selected with the R0EDG bit in the
TXMR register. The INT1 pin can be used only when the Timer X is in timer mode because the INT1
pin shares the same pin with the CNTR0 pin.
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INT2 interrupts are triggered by INT2 inputs. The edge polarity is selected with the R1EDG bit in the
TYZMR register. The INT2 pin can be used only when the Timer Y is in timer mode because the INT2
pin shares the same pin with the CNTR1 pin. The INT2 pin can be used use with the CNTR1 pin
Figure 10.13 shows the TXMR and TYZMR registers when using INT1 and INT2 interrupts.
Jan 27, 2006
T i m e r X m o d e r e g i s t e r
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
0 0
T i m e r Y , Z m o d e r e g i s t e r
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
N O T E S :
2 . T h i s b i t i s u s e d t o s e l e c t t h e p o l a r i t y o f I N T 1 i n t e r r u p t i n t i m e r m o d e .
3 . W h e n u s i n g I N T 1 i n t e r r u p t s , s h o u l d s e l e c t t i m e r m o d e .
N O T E S :
1 . T h e I R b i t i n t h e I N T 1 I C m a y b e s e t t o “ 1 ” ( i n t e r r u p t r e q u e s t e d ) w h e n t h e R 0 E D G b i t i s r e w r i t t e n . R e f e r t o t h e
1 . W h e n u s i n g I N T 2 i n t e r r u p t s , m u s t s e t t o t i m e r m o d e .
2 . T h e I R b i t i n t h e I N T 2 I C m a y b e s e t t o “ 1 ” ( i n t e r r u p t r e q u e s t e d ) w h e n t h e R 1 E D G b i t i s r e w r i t t e n .
______
p a r a g r a p h 1 9 . 2 . 5 “ C h a n g i n g I n t e r r u p t F a c t o r ” i n t h e U s a g e N o t e s R e f e r e n c e B o o k .
R e f e r t o t h e p a r a g r a p h 1 9 . 2 . 5 “ C h a n g i n g I n t e r r u p t F a c t o r ” i n t h e U s a g e N o t e s R e f e r e n c e B o o k .
0
0
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0
0
0
______
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B i t s y m b o l
T X M O D 0
T X M O D 1
T X S
T X O C N T
TXMOD2
R 0 E D G
TXUND
TXEDG
B i t s y m b o l
T Y M O D 0
T Z M O D 0
T Z M O D 1
T Z W C
T Z S
R 1 E D G
T Y W C
S y m b o l
T X M R
T Y S
______
S y m b o l
T Y Z M R
I N T 1 / C N T R
s w i t c h i n g b i t
Operation mode
select bit 2
Operation mode
select bit 0, 1
Timer X count
start flag
Set to "0" in timer mode
Set to "0" in timer mode
Set to "0" in timer mode
I N T 2 / C N T R 1 p o l a r i t y
s w i t c h i n g b i t
______
______
T i m e r Y o p e r a t i o n
m o d e b i t
T i m e r Y w r i t e
c o n t r o l b i t
Timer Y count
start flag
Timer Z-related bit
B i t n a m e
Bit name
0
(1 , 2 )
p o l a r i t y
A d d r e s s
0 0 8 B
(2 )
A d d r e s s
0 0 8 0
1 6
1 6
b1 b0
0 0 : Timer mode or pulse period
0 : R i s i n g e d g e
1 : F a l l i n g e d g e
0 : S t o p s c o u n t i n g
1 : S t a r t s c o u n t i n g
0 : Other than pulse period measurement
0 : T i m e r m o d e
0 : R i s i n g e d g e
1 : F a l l i n g e d g e
0 : Stops counting
1 : Starts counting
F u n c t i o n v a r i e s
d e p e n d i n g o n t h e o p e r a t i o n m o d e
mode
measurement mode
______
A f t e r r e s e t
(3)
A f t e r r e s e t
______
0 0
0 0
1 6
F u n c t i o n
1 6
Function
(1 )
(3)
______
______
_____
R W
RW
RW
RW
RW
RW
RW
RW
RW
R W
R W
R W
RW
RW
RW
RW
RW
RW
10.2 INT Interrupt
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