ST7LITE20F2 datasheet(162/166 Pages) STMICROELECTRONICS

部件名	ST7LITE20F2

功能描述	8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, Timers, SPI

PDF	166 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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162 / 166 page

Important notes

ST7LITE20F2 ST7LITE25F2 ST7LITE29F2

162/166

Doc ID 8349 Rev 5

Concurrent interrupt context

The symptom does not occur when the interrupts are handled normally, i.e. when:

●

The interrupt request is cleared (flag reset or interrupt mask) within its own interrupt

routine.

●

The interrupt request is cleared (flag reset or interrupt mask) within any interrupt

routine.

●

The interrupt request is cleared (flag reset or interrupt mask) in any part of the code

while this interrupt is disabled.

If these conditions are not met, the symptom can be avoided by implementing the following

sequence:

Perform SIM and RIM operation before and after resetting an active interrupt request

Ex:

SIM

reset flag or interrupt mask

RIM

16.6

Using PB4 as external interrupt

PB4 cannot be used as an external interrupt in HALT mode because the port pin PB4 is not

active in this mode.

16.7

Timebase 2 interrupt in slow mode

Timebase 2 interrupt is not available in slow mode.

ST7LITE20F2 数据表(PDF) 162 Page - STMicroelectronics