Universal Peripheral Interface User's Manual

UPI-C42/UPI-L42
Table 4. UPI Instruction Set
Mnemonic Description Bytes Cycles
ACCUMULATOR
ADD A, Rr Add register to A 1 1
ADD A,
@
Rr Add data memory 1 1
to A
ADD A,
Ý
data Add immediate to A 2 2
ADDC A, Rr Add register to A 1 1
with carry
ADDC A,
@
Rr Add data memory 1 1
to A with carry
ADDC A,
Ý
data Add immediate 2 2
to A with carry
ANL A, Rr AND register to A 1 1
ANL, A
@
Rr AND data memory 1 1
to A
ANL A,
Ý
data AND immediate to A 2 2
ORL A, Rr OR register to A 1 1
ORL, A,
@
Rr OR data memory 1 1
to A
ORL A,
Ý
data OR immediate to A 2 2
XRL A, Rr Exclusive OR regis- 1 1
ter to A
XRL A,
@
Rr Exclusive OR data 1 1
memory to A
XRL A,
Ý
data Exclusive OR imme- 2 2
diate to A
INC A Increment A 1 1
DEC A Decrement A 1 1
CLR A Clear A 1 1
CPL A Complement A 1 1
DA A Decimal Adjust A 1 1
SWAP A Swap nibbles of A 1 1
RL A Rotate A left 1 1
RLC A Rotate A left through 1 1
carry
RR A Rotate A right 1 1
RRC A Rotate A right 1 1
through carry
INPUT/OUTPUT
IN A, Pp Input port to A 1 2
OUTL Pp, A Output A to port 1 2
ANL Pp,
Ý
data AND immediate to 2 2
port
ORL Pp,
Ý
data OR immediate to 2 2
port
IN A, DBB Input DBB to A, 1 1
clear IBF
OUT DBB, A Output A to DBB, 1 1
set OBF
MOV STS, A A
4
–A
7
to Bits 4 –7 of 1 1
Status
MOVD A, Pp Input Expander 1 2
port to A
MOVD Pp, A Output A to 1 2
Expander port
ANLD Pp, A AND A to Expander 1 2
port
ORLD Pp, A OR A to Expander 1 2
port
Mnemonic Description Bytes Cycles
DATA MOVES
MOV A, Rr Move register to A 1 1
MOV A,
@
Rr Move data memory 1 1
to A
MOV A,
Ý
data Move immediate to A 2 2
MOV Rr, A Move A to register 1 1
MOV
@
Rr, A Move A to data 1 1
memory
MOV Rr,
Ý
data Move immediate to 2 2
register
MOV
@
Rr, Move immediate to 2 2
Ý
data data memory
MOV A, PSW Move PSW to A 1 1
MOV PSW, A Move A to PSW 1 1
XCH A, Rr Exchange A and 1 1
register
XCH A,
@
Rr Exchange A and 1 1
data memory
XCHD A,
@
Rr Exchange digit of A 1 1
and register
MOVP A,
@
A Move to A from 1 2
current page
MOVP3, A,
@
A Move to A from 1 2
page 3
TIMER/COUNTER
MOV A, T Read Timer/Counter 1 1
MOV T, A Load Timer/Counter 1 1
STRT T Start Timer 1 1
STRT CNT Start Counter 1 1
STOP TCNT Stop Timer/Counter 1 1
EN TCNTI Enable Timer/ 1 1
Counter Interrupt
DIS TCNTI Disable Timer/ 1 1
Counter Interrupt
CONTROL
*EN A20 Enable A20 Logic 1 1
EN DMA Enable DMA Hand- 1 1
shake Lines
EN I Enable IBF Interrupt 1 1
DIS I Diable IBF Inter- 1 1
rupt
EN FLAGS Enable Master 1 1
Interrupts
*SEL PMB0 Select Program 1 1
memory bank 0
*SEL PMB1 Select Program 1 1
memory bank 1
SEL RB0 Select register 1 1
bank 0
SEL RB1 Select register 1 1
bank 1
* UPI-C42/UPI-L42 Only.
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