ST7LITE20F2 datasheet(88/166 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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88 / 166 page

On-chip peripherals

ST7LITE20F2 ST7LITE25F2 ST7LITE29F2

88/166

Doc ID 8349 Rev 5

11.3.5

Interrupts

Note:

The TBxF and ICF interrupt events are connected to separate interrupt vectors (see

Interrupts chapter).

They generate an interrupt if the enable bit is set in the LTCSR1 or LTCSR2 register and the

interrupt mask in the CC register is reset (RIM instruction).

11.3.6

Lite timer control/status register 2 (LTCSR2)

Read / Write

Reset Value: 0000 0000 (00h)

●

Bits 7:2 = Reserved, must be kept cleared.

●

Bit 1 =

TB2IE Timebase 2 Interrupt enable

This bit is set and cleared by software.

0: Timebase (TB2) interrupt disabled

1: Timebase (TB2) interrupt enabled

●

Bit 0 =

TB2F Timebase 2 Interrupt Flag

This bit is set by hardware and cleared by software reading the LTCSR register. Writing

to this bit has no effect.

0: No Counter 2 overflow

1: A Counter 2 overflow has occurred.

Table 38.

TBxF and ICF interrupt events

Interrupt event

Event flag

Enable Control

bit

Exit from

WAIT

Exit from

ACTIVE-

HALT

Exit from

HALT

Timebase 1 event

TB1F

TB1IE

Yes

Timebase 2 event

TB2F

TB2IE

Yes

IC event

ICF

ICIE

Yes

000

TB2IE

TB2F

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