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ST725216 bảng dữ liệu(PDF) 60 Page - STMicroelectronics

tên linh kiện ST725216
Giải thích chi tiết về linh kiện  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
PDF  211 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST725216 bảng dữ liệu(HTML) 60 Page - STMicroelectronics

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MAIN CLOCK CONTROLLER WITH REAL TIME CLOCK (Cont’d)
Bit 0 = OIF
Oscillator interrupt flag
This bit is set by hardware and cleared by software
reading the MCCSR register. It indicates when set
that the main oscillator has reached the selected
elapsed time (TB1:0).
0: Timeout not reached
1: Timeout reached
CAUTION: The BRES and BSET instructions
must not be used on the MCCSR register to avoid
unintentionally clearing the OIF bit.
MCC BEEP CONTROL REGISTER (MCCBCR)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7:2 = Reserved, must be kept cleared.
Bit 1:0 = BC[1:0]
Beep control
These 2 bits select the PF1 pin beep capability.
The beep output signal is available in ACTIVE-
HALT mode but has to be disabled to reduce the
consumption.
Table 14. Main Clock Controller Register Map and Reset Values
70
0000
00
BC1
BC0
BC1
BC0
Beep mode with fOSC2=8MHz
00
Off
0
1
~2-KHz
Output
Beep signal
~50% duty cycle
1
0
~1-KHz
1
1
~500-Hz
Address
(Hex.)
Register
Label
7654
3210
002Bh
SICSR
Reset Value
AVDS
0
AVDIE
0
AVDF
0
LVDRF
x0
CSSIE
0
CSSD
0
WDGRF
x
002Ch
MCCSR
Reset Value
MCO
0
CP1
0
CP0
0
SMS
0
TB1
0
TB0
0
OIE
0
OIF
0
002Dh
MCCBCR
Reset Value
0000
00
BC1
0
BC0
0



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