HT45F3W datasheet(120/167 Pages) HOLTEK

120 / 167 page

Rev. 1.50

1�0

De�e��e� 01� �01�

Rev. 1.50

1�1

De�e��e� 01� �01�

HT45F3W

R-Type Blood Pressure Meter Flash MCU

HT45F3W

R-Type Blood Pressure Meter Flash MCU

Sn CK ( CK PO LB n= 1)

Sn CK ( CK PO LB n= 0)

Sn DO

Sn CS

Sn DI D at a Ca pt ur e

D7 /D 0D 6/ D1

D5 /D 2D 4/ D3

D3 /D 4D 2/ D5

D1 /D 6D 0/ D7

Wr it e to SPI nD

(S nD O c hanges a s so on as w ri ti ng o cc ur s; S nD O is f lo at in g i f S nC S= 1)

No te :F o r SP In s la ve m ode, i f SP In EN =1 a nd C SE Nn =0 , S PI n is a lw a ys enab le d

and ig no re s th e Sn CS l ev el .

SPIn Slave Mode Timing – CKEGn=1 (n=0 or 1)

Note:datareceivingisstillworkingwhenMCUentershaltmode

Interrupts

Interruptsareanimportantpartofanymicrocontrollersystem.Whenanexternaleventoran

internalfunctionsuchasaTimerModuleoranA/Dconverterrequiresmicrocontrollerattention,

theircorrespondinginterruptwillenforceatemporarysuspensionofthemainprogramallowingthe

microcontrollertodirectattentiontotheirrespectiveneeds.Thedevicecontainsseveralexternal

interruptandinternalinterruptsfunctions.Theexternalinterruptisgeneratedbytheactionofthe

externalINTnpin,whiletheinternalinterruptsaregeneratedbyvariousinternalfunctionssuchas

TMs,TimeBase,LVD,SPI,SCF,chargepumpandtheA/Dconverter.

No.

Interrupt Source

Priority

Vector

Exte�nal inte��upt 0

04H

�

Multi fun�tion inte��upt 0

TM0 �o�pa�ato� A o� P �at�h inte��upt

�

08H

�

Multi fun�tion inte��upt 1

TM1 �o�pa�ato� A o� P �at�h inte��upt

0CH

Multi fun�tion inte��upt �

TM� �o�pa�ato� A o� P �at�h inte��upt� EEPROM w�ite inte��upt

10H

A/D inte��upt

14H

Multi-fun�tion 3 inte��upt

(Ti�e Base 0 Inte��upt� SPI0 Inte��upt� SPI1 Inte��upt� INT1 Inte��upt)

�

18H

Multi-fun�tion 4 inte��upt

(Ti�e Base 1 Inte��upt� SCF� LVD Inte��upt and Cha�ge pu�p Inte��upt)

1CH

Interrupt Subroutine Vector

HT45F3W Datasheet(PDF) 120 Page - Holtek Semiconductor Inc

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