mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 371
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mc9s12vr48
Manufacturer Part Number
mc9s12vr48
Description
S12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12VR48.pdf
(592 pages)
- Current page: 371 of 592
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Chapter 12
Timer Module (TIM16B8CV3)
12.1
The basic scalable timer consists of a 16-bit, software-programmable counter driven by a flexible
programmable prescaler.
This timer can be used for many purposes, including input waveform measurements while simultaneously
generating an output waveform. Pulse widths can vary from microseconds to many seconds.
This timer could contain up to 8 (0....7) input capture/output compare channels with one pulse accumulator
available only on channel 7. The input capture function is used to detect a selected transition edge and
record the time. The output compare function is used for generating output signals or for timer software
delays. The 16-bit pulse accumulator is used to operate as a simple event counter or a gated time
accumulator. The pulse accumulator shares timer channel 7 when the channel is available and when in
event mode.
A full access for the counter registers or the input capture/output compare registers should take place in
one clock cycle. Accessing high byte and low byte separately for all of these registers may not yield the
same result as accessing them in one word.
12.1.1
The TIM16B8CV3 includes these distinctive features:
Freescale Semiconductor
V03.00
V03.01
V03.02
•
•
Up to 8 channels available. (refer to device specification for exact number)
All channels have same input capture/output compare functionality.
Introduction
Features
Aug. 26, 2009
Jan. 28, 2009
Apri,12,2010
12.3.2.2/12-378,
12.3.2.3/12-379,
12.3.2.4/12-380,
Figure 11-4./11-
12.3.2.15/12-38
12.3.2.8/12-383
12.3.2.11/12-38
12.1.2/12-372
12.4.3/12-395
12.4.3/12-395
MC9S12VR Family Reference Manual, Rev. 2.2
6
9
6
Preliminary - Subject to Change Without Notice
Initial version
- Correct typo: TSCR ->TSCR1;
- Correct typo: ECTxxx->TIMxxx
- Correct reference:
- Add description, “a counter overflow when TTOV[7] is set”, to be the
condition of channel 7 override event.
- Phrase the description of OC7M to make it more explicit
-Add
-update TCRE bit description
-add
Figure 12-31
Table 12-10
Table 12-1.
Figure 12-25
->
Figure 12-30
371
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