Maxim Integrated High-Speed Microcontroller - Manual (Page 28)

High-Speed Microcontroller User’s Guide
Rev: 062210 28 of 176
4.2.9 Timer/Counter Control (TCON)
7 6 5 4 3 2 1 0
SFR 88h TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0
RW-0 RW-0 RW-0 RW-0 RW-0 RW-0 RW-0 RW-0
R = Unrestricted Read, W = Unrestricted Write, -n = Value after Reset
TF1
Bit 7 Timer 1 Overflow Flag. This bit indicates when Timer 1 overflows its maximum count
as defined by the current mode. This bit can be cleared by software and is automatically
cleared when the CPU vectors to the Timer
1 interrupt service routine.
0 = No Timer 1 overflow has been detected.
1 = Timer 1 has overflowed its maximum count.
TR1
Bit 6 Timer 1 Run Control. This bit enables/disables the operation of Timer 1.
0 = Timer 1 is halted.
1 = Timer 1 is enabled.
TF0
Bit 5 Timer 0 Overflow Flag. This bit indicates when Timer 0 overflows its maximum count
as defined by the current mode. This bit can be cleared by software and is automatically
cleared when the CPU vectors to the Timer 0 interrupt service routine or by software.
0 = No Timer 0 overflow has been detected.
1 = Timer 0 has overflowed its maximum count.
TR0
Bit 4 Timer 0 Run Control. This bit enables/disables the operation of Timer 0.
0 = Timer 0 is halted.
1 = Timer 0 is enabled.
IE1
Bit 3 Interrupt 1 Edge Detect. This bit is set when an edge/level of the type defined by IT1
is detected. If IT1 = 1, this bit will remain set until cleared in software or the start of the
External Interrupt 1 service routine. If IT1 = 0, this bit will inversely reflect the state of
the
INT1 pin.
IT1
Bit 2
Interrupt 1 Type Select. This bit selects whether the INT1 pin will detect edge or level
triggered interrupts.
0 =
INT1 is level triggered.
1 = INT1 is edge triggered.
IE0
Bit 1 Interrupt 0 Edge Detect. This bit is set when an edge/level of the type defined by IT0
is detected. If IT0 = 1, this bit will remain set until cleared in software or the start of the
External Interrupt 0 service routine. If IT0 = 0, this bit will inversely reflect the state of
the
INT0 pin
IT0
Bit 0
Interrupt 0 Type Select. This bit selects whether the INT0 pin will detect edge or level
triggered interrupts.
0 =
INT0 is level triggered.
1 = INT0 is edge triggered.