ST72361AR4-Auto datasheet(96/279 Pages) STMICROELECTRONICS

tên linh kiện	ST72361AR4-Auto

Giải thích chi tiết về linh kiện	Clock, reset and supply management

PDF	279 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

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PWM auto-reload timer (ART)

ST72361xx-Auto

96/279

Doc ID 12468 Rev 3

Figure 45.

Input capture timing diagram, fCOUNTER = fCPU / 4

11.2.9

External interrupt capability

This mode allows the Input capture capabilities to be used as external interrupt sources.

The interrupts are generated on the edge of the ARTICx signal.

The edge sensitivity of the external interrupts is programmable (CSx bit of ARTICCSR

After fetching the interrupt vector, the CFx flags can be read to identify the interrupt source.

During HALT mode, the external interrupts can be used to wake up the micro (if the CIEx bit

is set). In this case, the interrupt synchronization is done directly on the ARTICx pin edge

(Figure 46).

Figure 46.

ART external interrupt in halt mode

04h

COUNTER

fCOUNTER

xxh

03h

04h

ARTICx PIN

CFx FLAG

ICRx REGISTER

INTERRUPT

fCPU

ICAP SAMPLED

05h

04h

COUNTER

fCOUNTER

xxh

03h

05h

ARTICx PIN

CFx FLAG

ICRx REGISTER

INTERRUPT

fCPU

ICAP SAMPLED

05h

ARTICx PIN

CFx FLAG

INTERRUPT

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