MC68HC705P6A Datasheet, PDF (68/130 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Capture/Compare Timer
8.4 Timer I/O Registers
The following I/O registers control and monitor timer operation:
• Timer control register (TCR)
• Timer status register (TSR)
• Timer registers (TRH and TRL)
• Alternate timer registers (ATRH and ATRL)
• Input capture registers (ICRH and ICRL)
• Output compare registers (OCRH and OCRL)
8.4.1 Timer Control Register
The timer control register (TCR), shown in Figure 8-2, performs these
functions:
• Enables input capture interrupts
• Enables output compare interrupts
• Enables timer overflow interrupts
• Controls the active edge polarity of the TCAP signal
• Controls the active level of the TCMP output
Address:
Read:
Write:
Reset:
$0012
Bit 7
6
5
4
3
2
1
0
0
0
ICIE
OCIE TOIE
IEDG
0
0
0
0
0
0
U
= Unimplemented U = Undetermined
Figure 8-2. Timer Control Register (TCR)
Bit 0
OLVL
0
Advance Information
68
Capture/Compare Timer
MC68HC705P6A — Rev. 2.0
MOTOROLA