M34282M1 View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

M34282M1

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

Renesas Electronics 

4282 Group

Grouping Mnemonic

Function

SEAM (A) = (M(DP)) ?

SEA n

(A) = n ?

n = 0 to 15

Ba

(PCL) ← a6–a0

BL p, a

(PCH) ← p

(PCL) ← a6–a0

BA a

(PCL) ← (a6–a4, A3–A0)

BLA p, a (PCH) ← p

(PCL) ← (a6–a4, A3–A0)

BM a

(SP) ← (SP) + 1

(SK(SP)) ← (PC)

(PCH) ← 2

(PCL) ← a6–a0

BML p, a

(SP) ← (SP) + 1

(SK(SP)) ← (PC)

(PCH) ← p p= 0 to 15

(PCL) ← a6–a0

BMLA p, (SP) ← (SP) + 1

a

(SK(SP)) ← (PC)

(PCH) ← p p= 0 to 15

(PCL) ← (a6–a4, A3–A0)

RT

(PC) ← (SK(SP))

(SP) ← (SP) – 1

RTS

(PC) ← (SK(SP))

(SP) ← (SP) – 1

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Grouping Mnemonic

Function

TV1A

(V12–V10) ← (A2–A0)

TAB1

(B) ← (T17–T14)

(A) ← (T13–T10)

T1AB

at timer 1 stop (V10=0):

(R17–R14) ← (B)

(T17–T14) ← (B)

(R13–R10) ← (A)

(T13–T10) ← (A)

at timer 1 operating (V10=1):

(R17–R14) ← (B)

(R13–R10) ← (A)

SNZT1

(T1F) = 1 ?

After skipping

the next instruction

(T1F) ← 0

TV2A

(V23–V20) ← (A3–A0)

TAB2

(B) ← (T27–T24)

(A) ← (T23–T20)

T2AB

(R2L7–R2L4) ← (B)

(T27–T24) ← (B)

(R2L3–R2L0) ← (A)

(T23–T20) ← (A)

T2HAB

(R2H7–R2H4) ← (B)

(R2H3–R2H0) ← (A)

T2R2L

(T27–T24) ← (R2L7–R2L4)

(T27–T24) ← (R2L3–R2L0)

SNZT2

(T2F) = 1 ?

After skipping

the next instruction

(T2F) ← 0

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Rev.1.33 Mar 18, 2004 page 25 of 67

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