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參數(shù)資料
| 型號(hào)： | 908E625 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication |
| 中文描述： | 綜合四半僅符合電源橋，嵌入式微控制器和LIN串行通信 |
| 文件頁數(shù)： | 30/48頁 |
| 文件大?。?/td> | 615K |
| 代理商： | 908E625 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
30
908E625
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Figure 15. Hall-Effect Sensor Input Terminal Connected to Three-Terminal Hall-Effect Sensor
Interrupts
The Hall-effect sensor input terminals are interrupt
capable. How and when an interrupt occurs is dependent on
the operating mode, RUN or Stop.
RUN Mode
In RUN mode the Hall-effect sensor input terminal interrupt
flag (HPF) will be set if a state change on the hallflags (HxF)
is detected. The interrupt is maskable with the HPIE bit in the
Interrupt Mask Register. Before enabling the interrupt, the
flag should be cleared in order to prevent a wrong interrupt.
STOP Mode
In STOP mode the Hall-effect sensor input terminals are
disabled independent of the state of the HxEN flags.
CYCLIC WAKE-UP
The Hall-effect sensor inputs can be used to wake up the
system. This wake-up function is provided by the cyclic check
wake-up feature of the AWD (Autonomous Watchdog).
If the cyclic check wake-up feature is enabled (AWDCC bit
is set), the AWD switches on the enabled Hall-effect sensor
terminals periodically. To ensure that the Hall-effect sensor
current is stabilized after switching on, the inputs are sensed
after ~40
μ
s. If a 1 is detected (I
Hall sensor
> I
HSCT
) and the
interrupt mask bit HPIE is set, an interrupt is performed.
This
wakes up the MCU and starts the main voltage regulator.
The wake-up function via this input is available when all
three conditions exist:
The two-terminal Hall-effect sensor input is enabled
(HxEN = 1)
The cyclic wake-up of the AWD is enabled (AWDCC =
1); see
Figure 16
The Hall-effect sensor input terminal interrupt is
enabled (HPIE = 1)
HxEN
HxF
Sense
Circuitry
V
Hx
GND
Three-Terminal Hall-Effect Sensor
Out
Vs
GND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 908E625_07 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication |
| 908E625_10 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication |
| 908E626 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication |
| 908E626_08 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication |
| 908E626_09 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication |
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