71M6541F Maxim, 71M6541F Datasheet - Page 47

• Manufacturer Part Number: 71M6541F
• Description: The 71M6541D/71M6541F/71M6541G/71M6542F/71M6542G are Teridian™ 4th-generation single-phase metering SoCs with a 5MHz 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and LCD driver
• Manufacturer: Maxim

Rev 2
N o .
“Internal Source” refers to interrupt sources originating within the 80515 MPU core.
“External Source” refers to interrupt sources outside the 80515 MPU core originating from other parts of the 71M654x SoC.
0
2
1
3
4
5
6
XFER_BUSY
W P U L S E
X P U L S E
Y P U L S E
V P U L S E
CE_BUSY
E x t e r n a l
EEPROM
RTC_1M
RTC_1S
S o u r c e
VSTAT
RTC_T
D I O
D I O
SPI
C E d e t e c t e d z e r o
C E d e t e c t e d s a g
c y c l e c o m p l e t e d
V A R h p u l s e
a c c u m u l a t i o n
e v e r y s e c o n d
e v e r y m i n u t e
W h p u l s e
a l a r m c l o c k
c o m m a n d
D I O s t a t u s
D I O s t a t u s
r e c e i v e d
( o p t i c a l )
c r o s s i n g
C E c o m p l e t e d c o d e r u n a n d
B U S Y f e l l
I n t e r n a l
U A R T 1
h a s n e w s t a t u s i n f o r m a t i o n
c h a n g e d
c h a n g e d
S o u r c e
Timer 0
Timer 1
U A R T 0
S u p p l y s t a t u s c h a n g e d
o v e r f l o w o c c u r r e d
o v e r f l o w o c c u r r e d
b y t e t r a n s m i t t e d
b y t e t r a n s m i t t e d
b y t e r e c e i v e d
b y t e r e c e i v e d
E n a b l e B i t s
EX_WPULSE
EX_XPULSE
EX_YPULSE
EX_VPULSE
I n d i v i d u a l
EX_RTC1M
D I O _ R n
D I O _ R n
EX_RTC1S
EX_XFER
EX_RTCT
EX_EEX
EX_SPI
S 1 C O N . 0 ( R I 1 )
S 0 C O N . 0 ( R I 0 )
S 1 C O N . 1 ( T I 1 )
S 0 C O N . 0 ( T I 0 )
I n d i v i d u a l F l a g s
T C O N . 5 ( T F 0 )
T C O N . 7 ( T F 1 )
T C O N . 1 ( I E 0 )
T C O N . 3 ( I E 1 )
Figure 16: Interrupt Structure
IE_WPULSE
IE_XPULSE
IE_YPULSE
IE_VPULSE
IE_RTC1M
IE_RTC1S
IE_XFER
IE_RTCT
IE_EEX
IE_SPI
L o g i c a n d P o l a r i t y
> = 1
> = 1
> = 1
> = 1
> = 1
S e l e c t i o n
I 2 F R
I 3 F R
I T 0
h a s o c c u r r e d
b e e n c l e a r e d
a n i n t e r r u p t
a n d h a s n o t
m e a n s t h a t
71M6541D/F/G and 71M6542F/G Data Sheet
I n t e r r u p t
IRCON.1
IRCON.2
IRCON.3
IRCON.4
IRCON.5
(IEX2)
(IEX3)
(IEX4)
(IEX5)
(IEX6)
F l a g = 1
F l a g s
47
h a r d w a r e v e c t o r s t o t h e
E X 0 – E X 6 a r e c l e a r e d
a u t o m a t i c a l l y w h e n t h e
I E N 0 . 7
( E A L )
I n t e r r u p t E n a b l e
i n t e r r u p t h a n d l e r
I E N 0 . 0
I E N 2 . 0
I E N 0 . 1
I E N 1 . 1
I E N 0 . 2
I E N 1 . 2
I E N 0 . 3
I E N 1 . 3
I E N 0 . 4
I E N 1 . 4
I E N 1 . 5
( E X 0 )
( E S 1 )
( E T 0 )
( E X 2 )
( E X 1 )
( E X 3 )
( E T 1 )
( E X 4 )
( E S 0 )
( E X 5 )
( E X 6 )
I P 1 . 0 /
I P 1 . 2 /
A s s i g n m e n t
I P 0 . 0
I P 1 . 1 /
I P 0 . 2
I P 1 . 3 /
I P 1 . 4 /
I P 1 . 5 /
I P 0 . 1
I P 0 . 3
I P 0 . 4
I P 0 . 5
I n t e r r u p t
P r i o r i t y
V e c t o r
3 / 1 9 / 2 0 1 0