MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 640

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Timer Module (TIM16B8CV3)
20.3.2.5
The 16-bit main timer is an up counter.
A full access for the counter register should take place in one clock cycle. A separate read/write for high
byte and low byte will give a different result than accessing them as a word.
Read: Anytime
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.
20.3.2.6
Read: Anytime
Write: Anytime
640
Reset
Reset
Reset
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
W
W
W
R
R
R
TCNT15
TCNT7
TEN
Timer Count Register (TCNT)
Timer System Control Register 1 (TSCR1)
15
0
0
0
7
7
= Unimplemented or Reserved
TCNT14
TCNT6
TSWAI
Figure 20-12. Timer System Control Register 1 (TSCR1)
14
0
0
0
6
6
Figure 20-10. Timer Count Register High (TCNTH)
Figure 20-11. Timer Count Register Low (TCNTL)
MC9S12G Family Reference Manual,
TCNT13
TCNT5
TSFRZ
13
0
5
0
5
0
TCNT12
TCNT4
TFFCA
12
0
0
0
4
4
TCNT11
TCNT3
PRNT
11
0
0
0
3
3
Rev.1.01
TCNT10
TCNT2
10
0
2
0
2
0
0
Freescale Semiconductor
TCNT9
TCNT1
0
0
0
0
9
1
1
TCNT8
TCNT0
0
0
0
0
9
0
0