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STR720 bảng dữ liệu(PDF) 175 Page - STMicroelectronics

tên linh kiện STR720
Giải thích chi tiết về linh kiện  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STR720 bảng dữ liệu(HTML) 175 Page - STMicroelectronics

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16.3.6
Interrupt control
The ASC has a single interrupt coming out of it, called ASC_interrupt. The status bits in the
ASC-Status register determine the cause of the interrupt. ASC_interrupt will go high when a
status bit is 1 (high) and the corresponding bit in the ASCIntEnable register is 1 (see
Figure 22).
Note: The ASCStatus register is read only. The Status bits can only be cleared by operating
on the FIFOs. The RxFIFO and TxFIFO can be reset by writing to the ASCRxReset and
ASCTxReset registers.
300
4166.667
4167
1047
0.008%
75
16666.667
16667
411B
0.002%
Figure 22. UART interrupt request
Table 44. Baud rates with fAPB = 20 MHz
Baud rate
Reload value
(exact)
Reload value
(integer)
Reload value
(hex)
Deviation error
TimeoutIdle
TimeoutIdle IE
TimeoutNotEmpty
TimeoutNotEmpty IE
OverrunError
OverrunError IE
FrameError
FrameError IE
ParityError
ParityError IE
TxHalfEmpty
TxHalfEmpty IE
TxEmpty
TxEmpty IE
RxBufNotEmpty
RxBufNotEmpty IE
ASC_interrupt
RxHalfFull
RxHalfFull IE
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