ST72E121J4D0 데이터 시트보기 (PDF) - STMicroelectronics

부품명

상세내역

제조사

ST72E121J4D0

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS

STMicroelectronics 

ST72E121 ST72T121

INSTRUCTION GROUPS (Cont’d)

Mnemo

Description

Fun ction/Exa mple

Dst

JRULE Jump if (C + Z = 1)

Unsigned <=

LD

MUL

Load

Multiply

dst <= src

X,A = X * A

reg, M

A, X, Y

NEG

Negate (2’s compl)

neg $10

reg, M

NOP

No Operation

OR

OR operation

A=A+M

A

POP

Pop from the Stack

pop reg

reg

pop CC

CC

PUSH Push onto the Stack

push Y

M

RCF

Reset carry flag

C=0

RET

Subroutine Return

RIM

RLC

Enable Interrupts

Rotate left true C

I=0

C <= Dst <= C

reg, M

RRC

Rotate right true C

C => Dst => C

reg, M

RSP

SBC

Reset Stack Pointer

Subtract with Carry

S = Max allowed

A=A-M-C

A

SCF

Set carry flag

C=1

SIM

Disable Interrupts

SLA

Shift left Arithmetic

I=1

C <= Dst <= 0

reg, M

SLL

Shift left Logic

C <= Dst <= 0

reg, M

SRL

SRA

SUB

Shift right Logic

Shift right Arithmetic

Subtraction

0 => Dst => C

Dst7 => Dst => C

A=A-M

reg, M

reg, M

A

SWAP SWAP nibbles

Dst[7..4] <=> Dst[3..0] reg, M

TNZ

TRAP

Test for Neg & Zero

S/W trap

tnz lbl1

S/W interrupt

WF I

Wait for Interrupt

XOR

Exclusive OR

A = A XOR M

A

Src

M, reg

X, Y, A

M

M

M

reg, CC

M

M

M

H I NZC

NZ

0

0

NZC

NZ

H I NZC

0

0

NZC

NZC

NZC

1

1

NZC

NZC

0 ZC

NZC

NZC

NZ

NZ

1

0

NZ

80/92

80

Share Link: