71M6521DE/71M6521FE
Energy Meter IC
DATASHEET
JANUARY 2008
Interrupt Enable 2 register (IE2)
MSB
LSB
-
-
-
-
-
-
-
ES1
Table 39: The IEN2 Register
Bit
Symbol Function
ES1 ES1=0 – disable serial channel 1 interrupt
Table 40: The IEN2 Bit Functions
IEN2.0
Timer/Counter Control register (TCON)
MSB
LSB
IT0
TF1
TR1
TF0
TR0
IE1
IT1
IE0
Table 41: 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 42: The TCON Bit Functions
Timer2/Counter2 Control register (T2CON):
Bit
T2CON.7
Symbol
Function
Not used
--
T2CON.6
T2CON.5
I3FR
I2FR
--
Polarity control for INT3: 0 - falling edge, 1 – rising edge
Polarity control for INT3: 0 - falling edge, 1 – rising edge
Not used
TCON.4 …
T2CON0
Table 43: The T2CON Bit Functions
v1.0
© 2005-2008 TERIDIAN Semiconductor Corporation
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