MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 295

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

18.9.1 TIMB Status and Control Register
MC68HC08AZ60A — Rev 0.0
MOTOROLA
Address:
The TIMB status and control register:
TOF — TIMB Overflow Flag Bit
TOIE — TIMB Overflow Interrupt Enable Bit
Reset:
Read:
Write:
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•
•
•
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This read/write flag is set when the TIMB counter reaches the modulo
value programmed in the TIMB counter modulo registers. Clear TOF
by reading the TIMB status and control register when TOF is set and
then writing a logic 0 to TOF. If another TIMB overflow occurs before
the clearing sequence is complete, then writing logic 0 to TOF has no
effect. Therefore, a TOF interrupt request cannot be lost due to
inadvertent clearing of TOF. Reset clears the TOF bit. Writing a logic
1 to TOF has no effect.
This read/write bit enables TIMB overflow interrupts when the TOF bit
becomes set. Reset clears the TOIE bit.
1 = TIMB counter has reached modulo value
0 = TIMB counter has not reached modulo value
1 = TIMB overflow interrupts enabled
0 = TIMB overflow interrupts disabled
Figure 18-4. TIMB Status and Control Register (TBSC)
Enables TIMB overflow interrupts
Flags TIMB overflows
Stops the TIMB counter
Resets the TIMB counter
Prescales the TIMB counter clock
$0040
Bit 7
TOF
R
0
0
Timer Interface Module B (TIMB)
= Reserved
TOIE
6
0
TSTOP
5
1
TRST
4
0
0
R
3
0
0
Timer Interface Module B (TIMB)
PS2
2
0
Advance Information
PS1
1
0
I/O Registers
Bit 0
PS0
0
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