ST72264G1 datasheet(96/172 Pages) STMICROELECTRONICS

Part #	ST72264G1

Description	8-BIT MCU WITH FLASH OR ROM MEMORY, ADC, TWO 16-BIT TIMERS, I2C, SPI, SCI INTERFACES

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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SERIAL COMMUNICATIONS INTERFACE (Cont’d)

11.5.5 Low Power Modes

11.5.6 Interrupts

The SCI interrupt events are connected to the

same interrupt vector.

These events generate an interrupt if the corre-

sponding Enable Control Bit is set and the inter-

rupt mask in the CC register is reset (RIM instruc-

tion).

Mode

Description

WAIT

No effect on SCI.

SCI interrupts cause the device to exit

from Wait mode.

HALT

SCI registers are frozen.

In Halt mode, the SCI stops transmit-

ting/receiving until Halt mode is exit-

ed.

Interrupt Event

Event

Flag

Enable

Control

Bit

Exit

from

Wait

Exit

from

Halt

Transmit Data Register

Empty

TDRE

TIE

Yes

No

Transmission Com-

plete

TC

TCIE

Yes

No

Received Data Ready

to be Read

RDRF

RIE

Yes

No

Overrun Error Detected

OR

Yes

No

Idle Line Detected

IDLE

ILIE

Yes

No

Parity Error

PE

PIE

Yes

No

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ST72264G1 Datasheet(PDF) 96 Page - STMicroelectronics

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