R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 73

• 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
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 can be selected with the R0EDG bit in
the TXMR register. The INT1 pin is shared with the CNTR0 pin.
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INT2 interrupts are triggered by INT2 inputs. The edge polarity can be selected with the R1EDG bit in
the TYZMR register. The INT2 pin shared 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 b5 b 4 b 3 b 2 b 1 b 0
T i m e r Y , Z m o d e r e g i s t e r
0 0
b7 b6 b5 b4 b3 b2 b1 b0
N O T E S :
NOTES:
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 .
2. This bit is used to select the polarity of INT1 interrupt in timer mode.
3. When using INT1 interrupts, should select timer mode.
1. The IR bit in the INT1IC may be set to “1” (interrupt requested) when the R0EDG bit is rewritten. Refer to the
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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 .
paragraph 19.2.5 “Changing Interrupt Factor” in the Usage Notes Reference Book.
0
0
page 62 of 205
0
0
0
B i t s y m b o l
B i t s y m b o l
TXOCNT
T X M O D 0
T X M O D 1
R 0 E D G
T X S
TXMOD2
T Y M O D 0
TZMOD0
T Z M O D 1
T X E D G
TXUND
T Z W C
T Z S
R 1 E D G
T Y W C
______
TYS
S y m b o l
T X M R
______
S y m b o l
T Y Z M R
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INT1/CNTR
switching bit
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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
O p e r a t i o n m o d e
s e l e c t b i t 0 , 1
T i m e r X c o u n t
s t a r t f l a g
O p e r a t i o n m o d e
s e l e c t b i t 2
S e t t o " 0 " i n t i m e r m o d e
Set to "0" in timer mode
Set to "0" in timer mode
Timer Y operation
mode bit
Timer Y write
control bit
Timer Y count
start flag
Timer Z-related bit
B i t n a m e
Bit name
0
(1, 2)
(2 )
polarity
A d d r e s s
A d d r e s s
0 0 8 B
0 0 8 0
1 6
1 6
b 1 b 0
0 0 : T i m e r m o d e o r p u l s e p e r i o d
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 : O t h e r t h a n p u l s e p e r i o d m e a s u r e m e n t
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
F u n c t i o n s 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
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
m o d e
m e a s u r e m e n t m o d e
A f t e r r e s e t
A f t e r r e s e t
(3 )
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0 0
0 0
1 6
1 6
F u n c t i o n
F u n c t i o n
(1 )
(3 )
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______
_____
RW
RW
RW
R W
R W
R W
R W
R W
R W
RW
RW
RW
RW
RW
RW
RW
RW
RW
10.2 INT Interrupt
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