mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 471

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Write: Has no meaning or effect in the normal mode; only writable in special modes (test_mode = 1).
The period of the first count after a write to the TCNT registers may be a different size because the write
is not synchronized with the prescaler clock.
16.3.2.6
Read: Anytime
Write: Anytime
Freescale Semiconductor
Module Base + 0x0006
TSFRZ
Reset
TSWAI
Field
TEN
7
6
5
W
R
TEN
Timer Enable
0 Disables the main timer, including the counter. Can be used for reducing power consumption.
1 Allows the timer to function normally.
If for any reason the timer is not active, there is no ÷64 clock for the pulse accumulator because the ÷64 is
generated by the timer prescaler.
Timer Module Stops While in Wait
0 Allows the timer module to continue running during wait.
1 Disables the timer module when the MCU is in the wait mode. Timer interrupts cannot be used to get the MCU
TSWAI also affects pulse accumulator.
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 System Control Register 1 (TSCR1)
0
7
out of wait.
= Unimplemented or Reserved
TSWAI
Figure 16-12. Timer System Control Register 1 (TSCR1)
0
6
S12XS Family Reference Manual Rev. 1.10
Table 16-6. TSCR1 Field Descriptions
TSFRZ
0
5
TFFCA
0
4
Description
PRNT
0
3
0
0
2
Timer Module (TIM16B8CV2)
0
0
1
0
0
0
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