ST6253C View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST6253C

8-bit MCUs with A/D converter, safe reset, auto-reload timer, EEPROM and SPI

STMicroelectronics 

ST6253C ST6263C ST6263B ST6260C ST6260B

INTERRUPTS (Cont’d)

Figure 22. Interrupt Block Diagram

FROM REGISTER PORT A,B,C

SINGLE BIT ENABLE

PBE

V DD

PORT A

PORT B

Bits

PBE

FF

CLK Q

0

CLR

I Start MUX

1

1

IOR REG. C8H, bit 6

INT #1 (FF6,7)

RESTART FROM

STOP/WAIT

PORT C

Bits

NMI

PBE

SPIDIV Register

SPINT bit

SPIE bit

SPIMOD Register

FF

CLK Q

CLR

IOR REG. C8H, bit 5

I 2 Start

OVF

OVIE

AR TIMER

CPF

CPIE

EF

EIE

VDD

TIMER1

TMZ

ETI

EOC

ADC EAI

INT #2 (FF4,5)

INT #3 (FF2,3)

INT #4 (FF0,1)

FF

CLK Q

CLR

NMI (FFC,D)

I0 Start

Bit GEN (IOR Register)

VA0426K

33/83

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