ST7265X datasheet(70/166 Pages) STMICROELECTRONICS

部品番号	ST7265X

部品情報	LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI

PDF	166 Pages

Scroll/Zoom	100%

メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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ST7265x

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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

Setup OVeRrun

SOVR

SOVRM

Yes

ERROR

ERR

ERRM

Yes

Suspend Mode Request

SUSP

SUSPM

Yes

End of SUSPend mode.

ESUSP

ESUSPM

Yes

USB RESET

RESET

RESETM

Yes

Start Of Frame

SOF

SOFM

Yes

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