M34282M2-XXXGP View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

M34282M2-XXXGP

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

Renesas Electronics 

4282 Group

LIST OF INSTRUCTION FUNCTION

Grouping Mnemonic

Function

TAB

(A) ← (B)

TBA

(B) ← (A)

TAY

(A) ← (Y)

TYA

(Y) ← (A)

TEAB

(ER7–ER4) ← (B)

(ER3–ER0) ← (A)

TABE

(B) ← (ER7–ER4)

(A) ← (ER3–ER0)

TDA

(DR2–DR0) ← (A2–A0)

LXY x, y (X) ← x, x = 0 to 3

(Y) ← y, y = 0 to 15

INY

(Y) ← (Y) + 1

DEY

(Y) ← (Y) – 1

TAM j

(A) ← (M(DP))

(X) ← (X) EXOR(j)

j = 0 to 3

XAM j

(A) ←→ (M(DP))

(X) ← (X) EXOR(j)

j = 0 to 3

XAMD j

(A) ←→ (M(DP))

(X) ← (X) EXOR(j)

j = 0 to 3

(Y) ← (Y) – 1

XAMI j

(A) ←→ (M(DP))

(X) ← (X) EXOR(j)

j = 0 to 3

(Y) ← (Y) + 1

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Grouping Mnemonic

Function

LA n

(A) ← n

n = 0 to 15

TABP p

(SP) ← (SP) + 1

(SK(SP)) ← (PC)

(PCH) ← p p=0 to 15

(PCL) ← (DR2–DR0, A3–A0)

When URS=0

(B) ← (ROM(PC))7 to 4

(A) ← (ROM(PC))3 to 0

When URS=1

(CY) ← (ROM(PC))8

(B) ← (ROM(PC))7 to 4

(A) ← (ROM(PC))3 to 0

(PC) ← (SK(SP))

(SP) ← (SP) – 1

AM

(A) ← (A) + (M(DP))

AMC

(A) ← (A) + (M(DP)) + (CY)

(CY) ← Carry

An

(A) ← (A) + n

n = 0 to 15

SC

(CY) ← 1

RC

(CY) ← 0

SZC

(CY) = 0 ?

CMA

(A) ← (A)

RAR

→ CY → A3A2A1A0

LGOP

Logic operation

instruction

XOR, OR, AND

SB j

(Mj(DP)) ← 1

j = 0 to 3

RB j

(Mj(DP)) ← 0

j = 0 to 3

SZB j

(Mj(DP)) = 0 ?

j = 0 to 3

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Rev.1.33 Mar 18, 2004 page 24 of 67

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