MC9S12E64CFUE Datasheet, PDF (425/606 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 13 Timer Module (TIM16B4CV1)
Table 13-6. TSCR1 Field Descriptions (continued)
Field
5
TSFRZ
4
TFFCA
Description
Timer Stops While in Freeze Mode
0 Allows the timer counter to continue running while in freeze mode.
1 Disables the timer counter whenever the MCU is in freeze mode. This is useful for emulation.
TSFRZ does not stop the pulse accumulator.
Timer Fast Flag Clear All
0 Allows the timer flag clearing to function normally.
1 For TFLG1(0x000E), a read from an input capture or a write to the output compare channel (0x0010–0x001F)
causes the corresponding channel flag, CnF, to be cleared. For TFLG2 (0x000F), any access to the TCNT
register (0x0004, 0x0005) clears the TOF flag. Any access to the PACNT registers (0x0022, 0x0023) clears
the PAOVF and PAIF flags in the PAFLG register (0x0021). This has the advantage of eliminating software
overhead in a separate clear sequence. Extra care is required to avoid accidental flag clearing due to
unintended accesses.
13.3.2.7 Timer Toggle On Overflow Register 1 (TTOV)
7
6
5
4
3
2
1
0
R
0
0
0
0
TOV7
TOV6
TOV5
TOV4
W
Reset
0
0
0
0
0
0
0
0
Figure 13-13. Timer Toggle On Overflow Register 1 (TTOV)
Read: Anytime
Write: Anytime
Table 13-7. TTOV Field Descriptions
Field
7:4
TOV[7:4]
Description
Toggle On Overflow Bits — TOVx toggles output compare pin on overflow. This feature only takes effect when
in output compare mode. When set, it takes precedence over forced output compare but not channel 7 override
events.
0 Toggle output compare pin on overflow feature disabled.
1 Toggle output compare pin on overflow feature enabled.
13.3.2.8 Timer Control Register 1 (TCTL1)
7
R
OM7
W
6
OL7
5
OM6
4
OL6
3
OM5
2
OL5
1
OM4
0
OL4
Reset
0
0
0
0
0
0
0
0
Figure 13-14. Timer Control Register 1 (TCTL1)
Read: Anytime
Write: Anytime
MC9S12E128 Data Sheet, Rev. 1.07
Freescale Semiconductor
425