71M6541D Datasheet, PDF (47/166 Pages) Maxim Integrated Products – 0.1% Accuracy Over 2000:1 Current Range Energy Meter ICs

71M6541D/F/G and 71M6542F/G Data Sheet
No. External
Source
0
DIO
Internal
Source
DIO status
changed
Individual
Enable Bits
DIO_Rn
Individual Flags
TCON.1 (IE0)
UART1
(optical)
byte received
byte transmitted
S1CON.0 (RI1)
S1CON.1 (TI1)
Timer 0
overflow occurred _{TCON.5 (TF0)}
XPULSE
CE detected zero
crossing
EX_XPULSE
Y P U L S E ^{C E d e t e c t e d s a g} EX_YPULSE
2
WPULSE
Wh pulse
EX_WPULSE
IE_XPULSE
IE_YPULSE
IE_WPULSE
VPULSE
VARh pulse
EX_VPULSE
IE_VPULSE
1
DIO
3 CE_BUSY
DIO status
changed
DIO_Rn
CE completed code run and
has new status information
TCON.3 (IE1)
Timer 1
overflow occurred _{TCON.7 (TF1)}
Logic and Polarity
Selection
IT0
>=1
>=1
I2FR
I3FR
Interrupt
Flags
IRCON.1
(IEX2)
IRCON.2
(IEX3)
4 VSTAT
EEPROM
5
SPI
Supply status changed
UART0
byte received
byte transmitted
BUSY fell
command
received
EX_EEX
EX_SPI
S0CON.0 (RI0)
S0CON.0 (TI0)
IE_EEX
IE_SPI
>=1
>=1
IRCON.3
(IEX4)
IRCON.4
(IEX5)
XFER_BUSY
accumulation
cycle completed
RTC_1S
every second
6
RTC_1M
every minute
RTC_T
alarm clock
EX_XFER
EX_RTC1S
EX_RTC1M
EX_RTCT
IE_XFER
IE_RTC1S
IE_RTC1M
IE_RTCT
>=1
IRCON.5
(IEX6)
Flag=1
means that
an interrupt
has occurred
and has not
been cleared
“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.
Figure 16: Interrupt Structure
Interrupt Enable
IEN0.7
(EAL)
IEN0.0
(EX0)
IEN2.0
(ES1)
IEN0.1
(ET0)
IEN1.1
(EX2)
IEN0.2
(EX1)
IEN1.2
(EX3)
IEN0.3
(ET1)
IEN1.3
(EX4)
IEN0.4
(ES0)
IEN1.4
(EX5)
IEN1.5
(EX6)
EX0 – EX6 are cleared
automaticallywhen the
hardware vectors to the
interrupt handler
Priority
Assignment
IP1.0/
IP0.0
IP1.1/
IP0.1
IP1.2/
IP0.2
IP1.3/
IP0.3
IP1.4/
IP0.4
IP1.5/
IP0.5
Interrupt
Vector
3/19/2010