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ST72344S4 bảng dữ liệu(PDF) 72 Page - STMicroelectronics

tên linh kiện ST72344S4
Giải thích chi tiết về linh kiện  SCI asynchronous serial interface
PDF  247 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST72344S4 bảng dữ liệu(HTML) 72 Page - STMicroelectronics

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Doc ID 12321 Rev 6
9.7
Register description
9.7.1
AWUFH control/status register (AWUCSR)
Reset value: 0000 0000 (00h)
Bits 7:3 = Reserved.
Bit 2= AWUF Auto-wakeup flag
This bit is set by hardware when the AWU module generates an interrupt and cleared
by software on reading AWUCSR.
0: No AWU interrupt occurred
1: AWU interrupt occurred
Bit 1= AWUM Auto-wakeup measurement
This bit enables the AWU RC oscillator and connects internally its output to the ICAP2
input of 16-bit timer A. This allows the timer to be used to measure the AWU RC
oscillator dispersion and then compensate this dispersion by providing the right value in
the AWUPR register.
0: Measurement disabled
1: Measurement enabled
Bit 0 = AWUEN Auto-wakeup from Halt Enabled
This bit enables the Auto-wakeup from Halt feature: once Halt mode is entered, the
AWUFH wakes up the microcontroller after a time delay defined by the AWU prescaler
value. It is set and cleared by software.
0: AWUFH (Auto-wakeup from Halt) mode disabled
1: AWUFH (Auto-wakeup from Halt) mode enabled
7
0
00
000
AWU
F
AWUM
AWUEN
Read/Write (except bit 2 read only)



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