參數(shù)資料
型號: A42MX16-2BG100ES
廠商: Electronic Theatre Controls, Inc.
英文描述: 40MX and 42MX FPGA Families
中文描述: 40MX和42MX FPGA系列
文件頁數(shù): 3/120頁
文件大?。?/td> 854K
代理商: A42MX16-2BG100ES
100
4958B–AUTO–11/10
Atmel ATA6285/ATA6286 [Preliminary]
3.13.6.10
Mode 11/12: Capture Mode and Modulator Output T2O1 at the PD5 Pin
The Timer2/Counter2 can be supplied with internal/external clocks. The trigger source for the
input capture signal can be selected by the T2ICS bit in theT2CRA register and additionally the
active edge for this input signal can be selected with the T2CE(1..0) in the T2MRA register.
Mode 11/12 uses one modulator I/O pin (M2 --> T2O1 in mode 12, M2 --> T2O2 in mode 11).
The port pins (PD6 and PD7) can be used as general digital I/O.
3.13.6.11
Mode 13: Sensor Measurement Mode together with Timer3
The Timer2/Counter2 can be configured via multiplexer stage to use the SENO signal as input.
After a Timer2/Counter2 compare match is detected the Counter3 value can be captured. The
synchronization between start of sensor measurement via bit SMS in the sensor control register
(SCR) and Timer3/Counter3 is realized by hardware. Figure 3-46 shows an example of the sen-
sor measurement mode.
Figure 3-46. Sensor Measurement Mode together with Timer3, Timing Diagram
In Sensor measurement mode it is recommended to enable Capture Noise Canceler of Timer3
to get correct measure results.
3.13.6.12
Mode 14/15/16: Reserved Modes
Compare
match
Timer 2
Compare value
Timer 3
Capture value
CLKMeasure
T3CNT
T2CNT
SENO
0, 1, 2, 3, .....
0
7
6
5
4
3
1
0
10
1, 2, 3, ...........20000
X
20000
9
8
2
1
CLT = 4 MHz
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