MCS11 datasheet(86/108 Pages) PADAUK

86 / 108 page

MCS11

ADC-Type Enhanced FPPA

TM Controller

Page 86 of 108

PDK-DS-MCS11_v020 – Apr. 20, 2018

ldtabh

index

Load high byte data in OTP program memory to ACC by using index as OTP address. It

needs 2T to execute this instruction.

Example:

ldtabh

index;

Result:

a ← {bit 15~8 of OTP [index]};

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

word

ROMptr ;

// declare a pointer of ROM in RAM

…

mov

a, la@TableA ;

// assign pointer to ROM TableA (LSB)

mov

lb@ROMptr, a ;

// save pointer to RAM (LSB)

mov

a, ha@TableA ;

// assign pointer to ROM TableA (MSB)

mov

hb@ROMptr, a ;

// save pointer to RAM (MSB)

…

ldtabh

ROMptr ;

// load TableA MSB to ACC (ACC=0X02)

….

TableA :

0x0234, 0x0042, 0x0024, 0x0018 ;

------------------------------------------------------------------------------------------------------------------------

ldtabl

index

Load low byte data in OTP to ACC by using index as OTP address. It needs 2T to execute

this instruction.

Example:

ldtabl

index;

Result:

a ← {bit7~0 of OTP [index]};

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

word

ROMptr ;

// declare a pointer of ROM in RAM

…

mov

a, la@TableA ;

// assign pointer to ROM TableA (LSB)

mov

lb@ROMptr, a ;

// save pointer to RAM (LSB)

mov

a, ha@TableA ;

// assign pointer to ROM TableA (MSB)

mov

hb@ROMptr, a ; // save pointer to RAM (MSB)

…

ldtabl

ROMptr ;

// load TableA LSB to ACC (ACC=0x34)

….

TableA :

0x0234, 0x0042, 0x0024, 0x0018 ;

------------------------------------------------------------------------------------------------------------------------

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