Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manual De Usuario

Freescale Semiconductor

527

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.

Read: Anytime

Write: Anytime

Module Base + 0x0006

7

6

5

4

3

2

1

0

R

TEN

TSWAI

TSFRZ

TFFCA

PRNT

0

0

0

W

Reset

0

0

0

0

0

0

0

0

= Unimplemented or Reserved

7

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.

6

TSWAI

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

out of wait.

TSWAI also affects pulse accumulator.

5

TSFRZ

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.