71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
Bit
Symbol Function
IEN1.7
IEN1.6
IEN1.5
IEN1.4
IEN1.3
IEN1.2
IEN1.1
IEN1.0
-
SWDT
EX6
EX5
EX4
EX3
EX2
-
Not used for interrupt control
EX6=0 – disable external interrupt 6
EX5=0 – disable external interrupt 5
EX4=0 – disable external interrupt 4
EX3=0 – disable external interrupt 3
EX2=0 – disable external interrupt 2
Table 37: The IEN1 Bit Functions
Interrupt Enable 2 register (IE2)
MSB
LSB
-
-
-
-
-
-
-
ES1
Table 38: The IEN2 Register
Bit
Symbol Function
ES1 ES1=0 – disable serial channel 1 interrupt
IEN2.0
Table 39: The IEN2 Bit Functions
Timer/Counter Control register (TCON)
MSB
LSB
IT0
TF1
TR1
TF0
TR0
IE1
IT1
IE0
Table 40: The TCON Register
Bit
Symbol Function
TCON.7
TCON.6
TCON.5
TCON.4
TCON.3
TCON.2
TCON.1
TCON.0
TF1
TR1
TF0
TR0
IE1
IT1
Timer 1 overflow flag
Not used for interrupt control
Timer 0 overflow flag
Not used for interrupt control
External interrupt 1 flag
External interrupt 1 type control bit
External interrupt 0 flag
IE0
IT0
External interrupt 0 type control bit
Table 41: The TCON Bit Functions
V1.0
© 2005-2008 TERIDIAN Semiconductor Corporation
Page: 31 of 97
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