MC9S12E256 Datasheet, PDF (423/602 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 13 Timer Module (TIM16B4CV1)
Table 13-9. Compare Result Output Action
OMx
0
0
1
1
OLx
Action
0
Timer disconnected from output pin logic
1
Toggle OCx output line
0
Clear OCx output line to zero
1
Set OCx output line to one
To operate the 16-bit pulse accumulator independently of input capture or output compare 7 and 4
respectively the user must set the corresponding bits IOSx = 1, OMx = 0 and OLx = 0. OC7M7 in the
OC7M register must also be cleared.
13.3.2.9 Timer Control Register 3 (TCTL3)
R
W
Reset
7
EDG7B
0
6
EDG7A
5
EDG6B
4
EDG6A
3
EDG5B
2
EDG5A
0
0
0
0
0
Figure 13-15. Timer Control Register 3 (TCTL3)
1
EDG4B
0
0
EDG4A
0
Read: Anytime
Write: Anytime.
Table 13-10. TCTL3/TCTL4 Field Descriptions
Field
7:0
EDGnB
EDGnA
Description
Input Capture Edge Control — These eight pairs of control bits configure the input capture edge detector
circuits.
Table 13-11. Edge Detector Circuit Configuration
EDGnB
0
0
1
1
EDGnA
0
1
0
1
Configuration
Capture disabled
Capture on rising edges only
Capture on falling edges only
Capture on any edge (rising or falling)
MC9S12E256 Data Sheet, Rev. 1.08
Freescale Semiconductor
423