Holtek HT66F30 - Page 267

Rev. 2.50 266 June 22, 2017 Rev. 2.50 267 June 22, 2017
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
RET A,x
 ReturnfromsubroutineandloadimmediatedatatoACC
Description TheProgramCounterisrestoredfromthestackandtheAccumulatorloadedwiththespecied
 immediatedata.Programexecutioncontinuesattherestoredaddress.
Operation ProgramCounter←Stack
 ACC←x
Affectedag(s) None
RETI
 Returnfrominterrupt
Description TheProgramCounterisrestoredfromthestackandtheinterruptsarere-enabledbysettingthe
 EMIbit.EMIisthemasterinterruptglobalenablebit.Ifaninterruptwaspendingwhenthe
 RETIinstructionisexecuted,thependingInterruptroutinewillbeprocessedbeforereturning
 tothemainprogram.
Operation ProgramCounter←Stack
 EMI←1
Affectedag(s) None
RL [m]
 RotateDataMemoryleft
Description ThecontentsofthespeciedDataMemoryarerotatedleftby1bitwithbit7rotatedintobit0.
Operation [m].(i+1)←[m].i;(i=0~6)
 [m].0←[m].7
Affectedag(s) None
RLA [m]
RotateDataMemoryleftwithresultinACC
Description ThecontentsofthespeciedDataMemoryarerotatedleftby1bitwithbit7rotatedintobit0.
 TherotatedresultisstoredintheAccumulatorandthecontentsoftheDataMemoryremain
 u
nchanged.
Operation ACC.(i+1)←[m].i;(i=0~6)
 ACC.0←[m].7
Affectedag(s) None
RLC [m]
RotateDataMemoryleftthroughCarry
Description ThecontentsofthespeciedDataMemoryandthecarryagarerotatedleftby1bit.Bit7
 replacestheCarrybitandtheoriginalcarryagisrotatedintobit0.
Operation [m].(i+1)←[m].i;(i=0~6)
 [m].0←C
 C←[m].7
Affectedag(s) C
RLCA [m]
 RotateDataMemoryleftthroughCarrywithresultinACC
Description DatainthespeciedDataMemoryandthecarryagarerotatedleftby1bit.Bit7replacesthe
 Carrybitandtheoriginalcarryagisrotatedintothebit0.Therotatedresultisstoredinthe
 AccumulatorandthecontentsoftheDataMemoryremainunchanged.
Operation ACC.(i+1)←[m].i;(i=0~6)
 ACC.0←C
 C←[m].7
Affectedag(s) C
RR [m]
RotateDataMemoryright
Description ThecontentsofthespeciedDataMemoryarerotatedrightby1bitwithbit0rotatedintobit7.
Operation [m].i←[m].(i+1);(i=0~6)
 [m].7←[m].0
Affectedag(s) None