mc68hc11d0cfn2 Freescale Semiconductor, Inc, mc68hc11d0cfn2 Datasheet - Page 108

• Manufacturer Part Number: mc68hc11d0cfn2
• Description: M68hc11 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Programmable Timer
8.4.8 Timer Interrupt Flag 1 Register
8.4.9 Timer Interrupt Mask 2 Register
Data Sheet
108
The timer interrupt flag 1 register (TFLG1) bits indicate when timer system events
have occurred. Coupled with the bits of TMSK1, the bits of TFLG1 allow the timer
subsystem to operate in either a polled or interrupt driven system. Each bit of
TFLG1 corresponds to a bit in TMSK1 in the same position.
Clear flags by writing a 1 to the corresponding bit position(s).
OC1F–OC5F — Output Compare x Flag
I4/O5F — Input Capture 4/Output Compare 5 Flag
IC1F–IC3F — Input Capture x Flag
The timer interrupt mask 1 register (TMSK2) is an 8-bit register used to enable or
inhibit timer overflow and real-time interrupts. The timer prescaler control bits are
included in this register.
TOI — Timer Overflow Interrupt Enable Bit
RTII — Real-Time Interrupt Enable Bit
PAOVI — Pulse Accumulator Overflow Interrupt Enable Bit
Address:
Address:
Set each time the counter matches output compare x value
Set by IC4 or OC5, depending on the function enabled by I4/O5 bit in PACTL
Set each time a selected active edge is detected on the ICx input line
Refer to
Refer to
Reset:
Reset:
Read:
Write:
Read:
Write:
0 = TOF interrupts disabled
1 = Interrupt requested when TOF is set to 1
Freescale Semiconductor, Inc.
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OC1F
$0024
8.5 Real-Time
8.7 Pulse
Bit 7
Bit 7
TOI
Figure 8-14. Timer Interrupt Mask 2 Register (TMSK2)
0
Figure 8-13. Timer Interrupt Flag 1 Register (TFLG1)
0
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OC2F
RTII
Programmable Timer
6
0
6
0
Accumulator.
Interrupt.
PAOVI
OC3F
5
0
5
0
OC4F
PAII
4
4
0
0
I4/O5F
3
0
3
0
0
IC1F
2
0
2
0
0
MC68HC711D3 — Rev. 2
IC2F
PR1
1
0
1
0
MOTOROLA
IC3F
Bit 0
Bit 0
PR0
0
0