HT48R002 datasheet(15/71 Pages) HOLTEK

15 / 71 page

Rev. 1.11

April 11, 2017

Rev. 1.11

April 11, 2017

HT48R002/HT48R003

Cost-Effective I/O 8-Bit OTP MCU

HT48R002/HT48R003

Cost-Effective I/O 8-Bit OTP MCU

Instruction

Table Location Bits

TABRDC [m]

TABRDL [m]

Table Location

Note:PC9~PC8:CurrentprogramCounterbits

@7~@0:TablePointerTBLPbits

Table Read Program Example

tempreg1 db ?

; temporary register #1

tempreg2 db ?

; temporary register #2

mov a,06h

; initialize table pointer - note that this address is referenced

mov tblp, a

; to the last page or present page

tabrdl tempreg1

; transfers value in table referenced by table pointer to tempreg1

; data at prog. memory address “0306H” transferred to tempreg1 and

; TBLH

dec tblp

; reduce value of table pointer by one

tabrdl tempreg2

; transfers value in table referenced by table pointer; to tempreg2

; data at prog. memory address “0305H” transferred to

; tempreg2 and TBLH

; in this example the data “1AH” is transferred to tempreg1 and

; data “0FH” to register tempreg2

; the value “00H” will be transferred to the high byte register TBLH

org 0300h

; sets initial address of last page

dc 00Ah, 00Bh, 00Ch, 00Dh, 00Eh, 00Fh, 01Ah, 01Bh

HT48R002 Datasheet(PDF) 15 Page - Holtek Semiconductor Inc