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ST7265X bảng dữ liệu(PDF) 70 Page - STMicroelectronics

tên linh kiện ST7265X
Giải thích chi tiết về linh kiện  LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST7265X bảng dữ liệu(HTML) 70 Page - STMicroelectronics

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USB INTERFACE (Cont’d)
11.3.5 Low Power modes
11.3.6 Interrupts
Note: The USB end of suspend interrupt event is connected to a single interrupt vector (USB ESUSP) with
the exit from halt capability (wake-up). All the other interrupt events are connected to another interrupt
vector: USB interrupt (USB). They generate an interrupt if the corresponding enable control bit is set and
the interrupt mask bits (I0, I1) in CC register are reset (RIM instruction).
Mode
Description
WAIT
No effect on USB.
USB interrupt events cause the device to exit from WAIT mode.
HALT
USB registers are frozen.
In halt mode, the USB is inactive. USB operations resume when the MCU is woken up by an interrupt with
“exit from halt capability” or by an event on the USB line in case of suspend. This event will generate an
ESUSP interrupt which will wake-up from halt mode.
Interrupt Event
Event Flag
Enable Con-
trol Bit
Exit From
Wait
Exit
From
Halt
Correct TRansfer
CTR
CTRM
Yes
No
Setup OVeRrun
SOVR
SOVRM
Yes
No
ERROR
ERR
ERRM
Yes
No
Suspend Mode Request
SUSP
SUSPM
Yes
No
End of SUSPend mode.
ESUSP
ESUSPM
Yes
Yes
USB RESET
RESET
RESETM
Yes
No
Start Of Frame
SOF
SOFM
Yes
No
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