HT85F2270 datasheet(7/226 Pages) HOLTEK

7 / 226 page

Rev. 1.00

7 of ��6

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Standard 8051 8-Bit Flash MCU

HT85F2260/HT85F2270/HT85F2280

35 Serial Interface – SPI ........................................................................................ 190

SPI Interface Operation................................................................................................... 190

SPI Features............................................................................................................................... 191

SPI Registers .................................................................................................................. 19�

SPI Communication......................................................................................................... 19�

36 UART Serial Interfaces – UART0 and UART1................................................. 198

UART Overview............................................................................................................... 198

UART0 Features......................................................................................................................... 198

UART1 Features......................................................................................................................... 198

Basic UART Data Transfer Scheme ........................................................................................... 199

UART0 Operating Description......................................................................................... �00

UART0 External Pin Interfacing.................................................................................................. �00

UART0 Register Description ...................................................................................................... �01

UART0 Operating �odes ........................................................................................................... �0�

UART0 �ultiprocessor Communication .................................................................................... �09

UART0 Baud Rate Setup ........................................................................................................... �09

UART1 Operating Description......................................................................................... �10

UART1 External Pin Interfacing.................................................................................................. �10

UART1 Register Description .......................................................................................................�11

UART1 Operating �odes ........................................................................................................... �14

UART1 �ultiprocessor Communication ..................................................................................... �16

UART1 Baud Rate Setup ........................................................................................................... �16

37 Instruction Set................................................................................................... 217

Introduction...................................................................................................................... �17

Read-�odif�-Write Instruction......................................................................................... ��

38 Package Information ........................................................................................ 223

48-pin LQFP (7mm×7mm) Outline Dimensions .............................................................. ��4

64-pin LQFP (7mm×7mm) Outline Dimensions .............................................................. ��

HT85F2270 Datasheet(PDF) 7 Page - Holtek Semiconductor Inc