71M6533 Maxim, 71M6533 Datasheet - Page 36

• Manufacturer Part Number: 71M6533
• Description: The Teridian™ 71M6533 and 71M6534 are third-generation polyphase metering systems-on-chips (SoCs) with a 10MHz 8051-compatible MPU core, low-power RTC, flash, and LCD driver
• Manufacturer: Maxim

71M6533/H and 71M6534/H Data Sheet
36
N o .
0
2
1
3
4
5
6
M P U - e x t e r n a l
XFER_BUSY
s o u r c e s
C o l l i s i o n
CE_BUSY
EEPROM
E x t e r n a l
NR_OVF
S P I I / F
RTC_1S
S o u r c e
PLL OK
F l a s h
W r i t e
D I O
D I O
I2C
W r i t e a t t e m p t , C E
f l a s h w r i t e b u s y
C E c o d e s t a r t ,
c y c l e c o m p l e t e d
a c c u m u l a t i o n
e v e r y s e c o n d
M P U - i n t e r n a l
D I O s t a t u s
P L L s t a t u s
c o m m a n d
D I O s t a t u s
W D T n e a r
r e c e i v e d
( o p t i c a l )
c h a n g e d
C E c o m p l e t e d c o d e r u n a n d
c h a n g e d
B U S Y f e l l
o v e r f l o w
h a s n e w s t a t u s i n f o r m a t i o n
I n t e r n a l
U A R T 1
S o u r c e
c h a n g e d
s o u r c e s
Timer 0
b u s y
Timer 1
U A R T 0
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_FWCOL
I n d i v i d u a l
D I O _ R n
D I O _ R n
IEN_NR_
EX_XFER
WDOVF
IEN_SPI
EX_EEX
EX_RTC
EX_PLL
EX_SPI
S 1 C O N . 0 ( R I 1 )
S 1 C O N . 1 ( T I 1 )
S 0 C O N . 0 ( R I 0 )
S 0 C O N . 0 ( T I 0 )
WD_NROVF_FLAG
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 )
IE_PLLFALL
IE_FWCOL0
IE_FWCOL1
IE_PLLRISE
SPI_FLAG
IE_XFER
IE_EEX
IE_RTC
IE_SPI
Figure 7: Interrupt Structure
L o g i c a n d P o l a r i t y
> = 1
> = 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
F l a g = 1 m e a n s
t h a t a n i n t e r -
h a s n o t b e e n
r u p t h a s o c -
c u r r e d a n d
I n t e r r u p t
IRCON.1
IRCON.2
IRCON.3
IRCON.4
IRCON.5
c l e a r e d
(IEX2)
(IEX3)
(IEX4)
(IEX5)
(IEX6)
F l a g s
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 T 0 )
( E X 2 )
( E X 1 )
( E X 3 )
( E T 1 )
( E X 4 )
( E X 5 )
( E X 6 )
( E S 1 )
( E S 0 )
2 / 2 / 2 0 0 9
I P 1 . 0 /
I P 1 . 2 /
FDS_6533_6534_004
A s s i g n m e n t
I P 0 . 0
I P 0 . 2
I P 1 . 1 /
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
P r i o r i t y
I n t e r r u p t
V e c t o r
Rev 2