HT85F2270 datasheet(9/226 Pages) HOLTEK

9 / 226 page

Rev. 1.00

9 of ��6

�a� 1�� 01�

Standard 8051 8-Bit Flash MCU

HT85F2260/HT85F2270/HT85F2280

Interrupt Register Bit Naming Conventions ............................................................................................. 9�

Interrupt Register Contents...................................................................................................................... 9�

IEN0 Register .......................................................................................................................................... 9�

IEN1 Register .......................................................................................................................................... 94

IEN� Register .......................................................................................................................................... 94

IEN� Register .......................................................................................................................................... 9�

IRCON Register....................................................................................................................................... 96

IRCON� Register..................................................................................................................................... 97

S0CON Register ...................................................................................................................................... 98

S1CON Register ...................................................................................................................................... 99

TCON Register ...................................................................................................................................... 100

T�CON Register .................................................................................................................................... 101

SPSTA Register ..................................................................................................................................... 10�

CPICR Register ..................................................................................................................................... 10�

I�CCON Register................................................................................................................................... 104

Low b�te of Interrupt Priorit� Register 0: IP0 ......................................................................................... 109

High b�te of Interrupt Priorit� Register 0: IP0H...................................................................................... 109

Low b�te of Interrupt Priorit� Register 1: IP1 ..........................................................................................110

High b�te of Interrupt Priorit� Register 1: IP1H.......................................................................................110

Low b�te of Interrupt Priorit� Register �: IP� ..........................................................................................111

High b�te of Interrupt Priorit� Register �: IP�H.......................................................................................111

Low b�te of Interrupt Priorit� Register �: IP� ..........................................................................................111

How b�te of Interrupt Priorit� Register �: IP�H.......................................................................................11�

External Interrupt Trigger T�pe ...............................................................................................................11�

CPICR Register ......................................................................................................................................11�

TBCR Register........................................................................................................................................11�

I/O Port Function Summar� ....................................................................................................................118

I/O Register List ......................................................................................................................................119

P0 Register .............................................................................................................................................119

P1 Register .............................................................................................................................................119

P� Register ............................................................................................................................................ 1�0

P4 Register ............................................................................................................................................ 1�0

P� Register ............................................................................................................................................ 1�0

Port 0 �ode Control............................................................................................................................... 1�1

P0�0 Register ....................................................................................................................................... 1�1

P0�1 Register ....................................................................................................................................... 1�1

Port 1 �ode Control............................................................................................................................... 1�1

P1�0 Register ....................................................................................................................................... 1�1

P1�1 Register ....................................................................................................................................... 1�1

Port � �ode Control............................................................................................................................... 1��

P��0 Register ....................................................................................................................................... 1��

P��1 Register ....................................................................................................................................... 1��

Port � �ode Control............................................................................................................................... 1��

P��0 Register ....................................................................................................................................... 1��

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