71m6521be Maxim Integrated Products, Inc., 71m6521be Datasheet - Page 32

• Manufacturer Part Number: 71m6521be
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

Timer2/Counter2 Control register (T2CON):
Interrupt Request register (IRCON)
Page: 32 of 97
TCON.4 …
T2CON.7
T2CON.6
T2CON.5
IRCON.7
IRCON.6
IRCON.5
IRCON.4
IRCON.3
IRCON.2
IRCON.1
IRCON.0
T2CON0
Bit
Bit
MSB
Note: Only TF0 and TF1 (timer 0 and timer 1 overflow flag) will be automatically cleared by hardware when the
service routine is called (Signals T0ACK and T1ACK – port ISR – active high when the service routine is called).
Symbol
Symbol
I3FR
I2FR
IEX6
IEX5
IEX4
IEX3
IEX2
--
--
-
-
-
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
Function
External interrupt 6 edge flag
External interrupt 5 edge flag
External interrupt 4 edge flag
External interrupt 3 edge flag
External interrupt 2 edge flag
© 2005-2008 TERIDIAN Semiconductor Corporation
EX6
Table 42: The T2CON Bit Functions
Table 43: The IRCON Register
Table 44: The IRCON Bit Functions
IEX5
IEX4
IEX3
Energy Meter IC
IEX2
LSB
71M6521BE
DATA SHEET
JANUARY 2008
V1.0