DMTimer
20.1.5.15 TCAR1 Register (offset = 50h) [reset = 0h]
TCAR1 is shown in
and described in
.
When the appropriate (rising, falling or both) transition is detected in the edge detection logic the current
counter value is stored to the TCAR1 register. Note that since the OCP clock is completely asynchronous
with the timer clock, some synchronization is done in order to make sure that the TCAR1 value is not read
while it is being updated due to some capture event. In 16-bit mode the following sequence must be
followed to read the TCAR1 register properly:
Figure 20-23. TCAR1 Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CAPTURED_VALUE
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 20-25. TCAR1 Register Field Descriptions
Bit
Field
Type
Reset
Description
31-0
CAPTURED_VALUE
R/W
0h
Timer counter value captured on an external event trigger
3582
Timers
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated