4280 datasheet(29/48 Pages) RENESAS

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Detailed description

Instruction code

Function

Mnemonic

Hexadecimal

notation

Parameter

Type of

instructions

D8 D7 D6 D5 D4 D3 D2 D1 D0

MITSUBISHI MICROCOMPUTERS

4280 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS

MITSUBISHI MICROCOMPUTERS

4280 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS

Sets (1) the contents of bit j (bit specified by the value j in the immediate field) of M(DP).

Clears (0) the contents of bit j (bit specified by the value j in the immediate field) of M(DP).

Skips the next instruction when the contents of bit j (bit specified by the value j in the immediate field)

of M(DP) is “0.”

Skips the next instruction when the contents of register A is equal to the contents of M(DP).

Skips the next instruction when the contents of register A is equal to the value n in the immediate field.

Branch within a page : Branches to address a in the identical page.

Branch out of a page : Branches to address a in page p.

Branch within a page : Branches to address (a6 a5 a4 A3 A2 A1 A0) determined by replacing the low-

order 4 bits of the address a in the identical page with register A.

Branch out of a page : Branches to address (a6 a5 a4 A3 A2 A1 A0) determined by replacing the low-

order 4 bits of the address a in page p with register A.

–

SB j

RB j

SZB j

SEAM

SEA n

B a

BL p, a

BA a

BLA p, a

(Mj(DP))

← 1

j = 0 to 3

(Mj(DP))

← 0

j = 0 to 3

(Mj(DP)) = 0 ?

j = 0 to 3

(A) = (M(DP)) ?

(A) = n ?

n = 0 to 15

(PCL)

← a6–a0

(PCH)

← p

(PCL)

← a6–a0

(Note)

(PCL)

← (a6–a4, A3–A0)

(PCH)

← p

(PCL)

← (a6–a4, A3–A0)

(Note)

–

(Mj(DP)) = 0

j = 0 to 3

(A) = (M(DP))

(A) = n

n = 0 to 15

–

0010

111j1

0010

011j1

0001

000j1

0001

00110

0001

00101

0101

1n3 n2 n1 n0

11a6 a5 a4 a3 a2 a1 a0

0001

1p3 p2 p1 p0

11a6 a5 a4 a3 a2 a1 a0

0000

00001

11a6 a5 a4 a3 a2 a1 a0

0000

10000

11a6 a5 a4 p3 p2 p1 p0

Note : p is 0 to 7 for M34280E1, and p is 0 to 7 for M34280M1.

MACHINE INSTRUCTIONS (CONTINUED)

4280 Datasheet(PDF) 29 Page - Renesas Technology Corp

4280 Datasheet(HTML) 29 Page - Renesas Technology Corp

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