ST72311 datasheet(77/94 Pages) STMICROELECTRONICS

Part #	ST72311

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

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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ST72311

INSTRUCTION GROUPS (Cont’d)

Mnemo

Description

Function/Example

Dst

Src

H

I

N

Z

C

ADC

Add with Carry

A = A + M + C

A

M

H

N

Z

C

ADD

Addition

A = A + M

A

M

H

N

Z

C

AND

Logical And

A = A . M

A

M

N

Z

BCP

Bit compare A, Memory

tst (A . M)

A

M

N

Z

BRES

Bit Reset

bres Byte, #3

M

BSET

Bit Set

bset Byte, #3

M

BTJF

Jump if bit is false (0)

btjf Byte, #3, Jmp1

M

C

BTJT

Jump if bit is true (1)

btjt Byte, #3, Jmp1

M

C

CALL

Call subroutine

CALLR

Call subroutine relative

CLR

Clear

reg, M

0

1

CP

Arithmetic Compare

tst(Reg - M)

reg

M

N

Z

C

CPL

One Complement

A = FFH-A

reg, M

N

Z

1

DEC

Decrement

dec Y

reg, M

N

Z

HALT

Halt

0

IRET

Interrupt routine return

Pop CC, A, X, PC

H

I

N

Z

C

INC

Increment

inc X

reg, M

N

Z

JP

Absolute Jump

jp [TBL.w]

JRA

Jump relative always

JRT

Jump relative

JRF

Never jump

jrf *

JRIH

Jump if ext. interrupt = 1

JRIL

Jump if ext. interrupt = 0

JRH

Jump if H = 1

H = 1 ?

JRNH

Jump if H = 0

H = 0 ?

JRM

Jump if I = 1

I = 1 ?

JRNM

Jump if I = 0

I = 0 ?

JRMI

Jump if N = 1 (minus)

N = 1 ?

JRPL

Jump if N = 0 (plus)

N = 0 ?

JREQ

Jump if Z = 1 (equal)

Z = 1 ?

JRNE

Jump if Z = 0 (not equal)

Z = 0 ?

JRC

Jump if C = 1

C = 1 ?

JRNC

Jump if C = 0

C = 0 ?

JRULT

Jump if C = 1

Unsigned <

JRUGE

Jump if C = 0

Jmp if unsigned >=

JRUGT

Jump if (C + Z = 0)

Unsigned >

77

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