78M6612 Data Sheet
Special Function Registers for Interrupts
The following SFR registers control the interrupt functions:
DS_6612_001
•
The interrupt enable Registers: IEN0, IEN1 and IEN2 (see
and
•
The Timer/Counter control registers: The Timer/Counter control registers:
TCON
and
T2CON
(see
and
•
The interrupt request register:
IRCON
(see
).
•
The interrupt priority registers:
IP0
and
IP1
(see
and
Interrupt Enable 0 Register (IEN0)
Table 24: The
IEN0
Register
MSB
EAL
Bit
IEN0[7]
IEN0[6]
IEN0[5]
IEN0[4]
IEN0[3]
IEN0[2]
IEN0[1]
IEN0[0]
WDT
Symbol
EAL
WDT
–
ES0
ET1
EX1
ET0
EX0
ES0=0
– disable serial channel 0 interrupt.
ET1=0
– disable timer 1 overflow interrupt.
EX1=0
– disable external interrupt 1.
ET0=0
– disable timer 0 overflow interrupt.
EX0
=0 – disable external interrupt 0.
–
ES0
Function
EAL=0
– disable all interrupts.
Not used for interrupt control.
ET1
EX1
ET0
LSB
EX0
Interrupt Enable 1 Register (IEN1)
Table 25: The
IEN1
Register
MSB
–
SWDT
Bit
IEN1[7]
IEN1[6]
IEN1[5]
IEN1[4]
IEN1[3]
IEN1[2]
IEN1[1]
IEN1[0]
EX6
Symbol
–
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.
EX5
Function
EX4
EX3
EX2
LSB
–
32
Rev. 1.2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
