MC68HC05K0 Datasheet, PDF (79/154 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Multifunction Timer
Timer Status and Control Register
Address: $0008
Bit 7
6
5
4
3
2
1
Bit 0
Read: TOF
RTIF
0
0
TOIE RTIE
RT1
RT0
Write:
TOFR RTIFR
Reset: 0
0
0
0
0
0
1
1
= Unimplemented
Figure 8-2. Timer Status and Control Register (TSCR)
TOF — Timer Overflow Flag
This read-only flag becomes set when the first eight stages of the
counter roll over from $FF to $00. TOF generates a timer overflow
interrupt request if TOIE is also set. Clear TOF by writing a logic 1 to
the TOFR bit. Writing to TOF has no effect. Reset clears TOF.
RTIF — Real-Time Interrupt Flag
This read-only flag becomes set when the selected real-time interrupt
(RTI) output becomes active. RTIF generates a real-time interrupt
request if RTIE is also set. Clear RTIF by writing a logic 1 to the
RTIFR bit. Writing to RTIF has no effect. Reset clears RTIF.
TOIE — Timer Overflow Interrupt Enable Bit
This read/write bit enables timer overflow interrupts. Reset clears
TOIE.
1 = Timer overflow interrupts enabled
0 = Timer overflow interrupts disabled
RTIE — Real-Time Interrupt Enable Bit
This read/write bit enables real-time interrupts. Reset clears RTIE.
1 = Real-time interrupts enabled
0 = Real-time interrupts disabled
TOFR — Timer Overflow Flag Reset Bit
Writing a logic 1 to this write-only bit clears the TOF bit. TOFR always
reads as a logic 0. Reset does not affect TOFR.
MC68HC05K0 • MC68HC05K1 — Rev. 2.0
Multifunction Timer
For More Information On This Product,
Go to: www.freescale.com
Technical Data