MC68HC11K Motorola, MC68HC11K Datasheet - Page 72

• Manufacturer Part Number: MC68HC11K
• Description: 8-Bit Microcontroller
• Manufacturer: Motorola

TMSK2 —Timer Interrupt Mask 2
TOI —Timer Overflow Interrupt Enable
RTII —Real-Time Interrupt Enable
PAOVI —Pulse Accumulator Overflow Interrupt Enable
PAII —Pulse Accumulator Input Interrupt Enable
Bits [3:2] —Not implemented
PR[1:0] —Timer Prescaler Select
TFLG2 —Timer Interrupt Flag 2
TOF —Timer Overflow Enable
RTIF —Real-Time Interrupt Flag
PAOVF —Pulse Accumulator Overflow Flag
PAIF —Pulse Accumulator Input Edge Flag
Bits [3:0] —Not implemented
72
MOTOROLA
RESET:
RESET:
Always read zero
Refer to 10 Main Timer.
Clear flags by writing a one to the corresponding bit position(s).
Refer to 10 Main Timer.
Refer to 10 Main Timer.
Set when PACNT changes from $FF to $00
Set each time a selected active edge is detected on the PAI input line
Always read zero
Refer to 10 Main Timer.
Refer to 10 Main Timer.
0 = Pulse accumulator overflow interrupt disabled
1 = Pulse accumulator overflow interrupt enabled
0 = Pulse accumulator input interrupt disabled
1 = Pulse accumulator input interrupt enabled if PAIF bit in TFLG2 register is set
Bit 7
Bit 7
TOF
TOI
0
0
Control bits [7:4] in TMSK2 correspond bit for bit with flag bits [7:4] in TFLG2. Ones
in TMSK2 enable the corresponding interrupt sources.
RTIF
RTII
6
0
6
0
PAOVF
PAOVI
5
0
5
0
PAIF
PAII
4
0
4
0
NOTE
—
—
3
0
3
0
—
—
2
0
2
0
PR1
—
1
0
1
0
M68HC11 K Series
$0024
$0025
MC68HC11KTS/D
Bit 0
PR0
Bit 0
—
0
0