71M6521DE Datasheet, PDF (31/101 Pages) Teridian Semiconductor Corporation – Energy Meter IC

Interrupt Enable 2 register (IE2)
MSB
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71M6521DE/71M6521FE
Energy Meter IC
DATASHEET
JANUARY 2008
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Table 39: The IEN2 Register
LSB
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ES1
Bit
IEN2.0
Symbol Function
ES1 ES1=0 – disable serial channel 1 interrupt
Table 40: The IEN2 Bit Functions
Timer/Counter Control register (TCON)
MSB
TF1
TR1
TF0
TR0
IE1
IT1
Table 41: The TCON Register
Bit
TCON.7
TCON.6
TCON.5
TCON.4
TCON.3
TCON.2
TCON.1
TCON.0
Symbol Function
TF1 Timer 1 overflow flag
TR1 Not used for interrupt control
TF0 Timer 0 overflow flag
TR0 Not used for interrupt control
IE1 External interrupt 1 flag
IT1 External interrupt 1 type control bit
IE0 External interrupt 0 flag
IT0 External interrupt 0 type control bit
Table 42: The TCON Bit Functions
Timer2/Counter2 Control register (T2CON):
LSB
IE0
IT0
Bit
Symbol
T2CON.7
T2CON.6
T2CON.5
TCON.4 …
T2CON0
--
I3FR
I2FR
--
Function
Not used
Polarity control for INT3: 0 - falling edge, 1 – rising edge
Polarity control for INT3: 0 - falling edge, 1 – rising edge
Not used
Table 43: The T2CON Bit Functions
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