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ST7FOXU0 Datasheet(PDF) 39 Page - STMicroelectronics

Part # ST7FOXU0
Description  1 additional output line
PDF  123 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7FOXU0 Datasheet(HTML) 39 Page - STMicroelectronics

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ST7FOXU0
Supply, reset and clock management
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6.5.4
RC Control Register Low (RCCRL)
Reset value: 0000 0000 (00h)
Bit 7 = Reserved, must be kept cleared
Bits 6:5 = CR[1:0] RC Oscillator Frequency Adjustment bits
These bits, as well as CR[9:2] bits in the RCCRH register must be written immediately
after reset to adjust the RC oscillator frequency. Refer to Section 6.1.1: Internal RC
oscillator on page 25.
Bits 4:3 = Reserved, must be kept cleared
Bit 2 = LVDRF LVD reset flag
This bit indicates that the last Reset was generated by the LVD block. It is set by
hardware (LVD reset) and cleared by software (by reading). When the LVD is disabled
by option byte, the LVDRF bit value is undefined.
The LVDRF flag is not cleared when another RESET type occurs (external or
watchdog), the LVDRF flag remains set to keep trace of the original failure.
In this case, a watchdog reset can be detected by software while an external reset can
not.
Bits 1:0 = Reserved, must be kept cleared
7
0
0
CR1
CR0
0
0
LVDRF
0
0
Read/write



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