参数资料
型号: ATAM893T-TKQ
厂商: Atmel
文件页数: 50/98页
文件大小: 0K
描述: IC MON TIRE-PRESS ATARX9X SER
标准包装: 4,000
系列: MARC4
核心处理器: MARC4
芯体尺寸: 4-位
速度: 4MHz
连通性: SSI(2 线,3 线)
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 16
程序存储器容量: 4KB(4K x 8)
程序存储器类型: EEPROM
EEPROM 大小: 64 x 16
RAM 容量: 256 x 4
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 6.5 V
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 20-SOIC(0.209",5.30mm 宽)
包装: 带卷 (TR)
54
4680C–4BMCU–01/05
ATAM893-D
Timer 3 – Mode 12: Timer/Counter with External Capture Mode (T3I)
The counter is driven by an internal clock source and an edge at the external input T3I loads the
counter value into the capture register. The edge can be selected with the programmable edge
detector of the timer input stage. This mode can be used for signal and pulse measurements.
Figure 5-35. External Capture Mode
5.3.3.4
Timer 3 Modulator for Carrier Frequency Burst Modulation
If the output stage operates as pulse-width modulator for the shift register the output can be
stopped with stage 1 of Timer 2. For this task, the timer mode 3 must be used and the prescaler
must be supplied by the internal shift clock of the shift register.
The modulator can be started with the start of the shift register (SIR = 0) and stopped either by a
shift register stop (SIR = 1) or compare match event of stage 1 of Timer 2. For this task, the
Timer 2 must be used in mode 3 and the prescaler stage must be supplied by the internal shift
clock of the shift register.
Figure 5-36. Modulator 3
0 1 2 3 4 567 89 10 11
Counter 3
T3CP-
Register
15
T3I
T3R
Capture value = X
Capture value = 17
01213 14
16
20
17 18 19
22
21
23
27
24 25 26
29
28
30
34
31 32 33
36
35
37
41
38 39 40
Capture value = 35
T3
Set
Res
T3O
T3TOP
OMSK
TOG3
SO
SSI/
Control
M2
M3
MUX
T3M
0
1
2
3
Timer 3 Mode
T3O
6 MUX 1
7 MUX 2
9 MUX 3
other MUX 0
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