UPD75304BGF-XXX-3B9 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD75304BGF-XXX-3B9

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75304B,75306B,75308B

Fig. 4-1 Program Memory Map

(a) µPD75308B

Address

76 5

0000H MBE 0 0

0

Internal Reset Start Address (High-Order 5 Bits)

Internal Reset Start Address (Low-Order 8 Bits)

0002H MBE 0 0 INTBT/INT4 Start Address (High-Order 5 Bits)

INTBT/INT4 Start Address (Low-Order 8 Bits)

0004H MBE 0 0

0006H MBE 0 0

INT0 Start Address (High-Order 5 Bits)

INT0 Start Address (Low-Order 8 Bits)

INT1 Start Address (High-Order 5 Bits)

INT1 Start Address (Low-Order 8 Bits)

CALLF

! faddr

Instruction

Entry

Address

CALL !addr

Instruction

Subroutine

Entry Address

0008H MBE 0 0

000AH MBE 0 0

INTCSI Start Address (High-Order 5 Bits)

INTCSI Start Address (Low-Order 8 Bits)

INTT0 Start Address (High-Order 5 Bits)

INTT0 Start Address (Low-Order 8 Bits)

≈

0020H

007FH

0080H

GETI Instruction Reference Table

BR !addr

Instruction

Branch Address

BRCB

! caddr

Instruction

Branch

Address

BR $addr

Instruction

≈

Relative

Branch Address

(-15 to -1,

+2 to +16)

≈

07FFH

0800H

≈

Branch Destination

Address and

Subroutine Entry Address

by GETI Instruction

≈

≈

0FFFH

1000H

≈

1F7FH

BRCB

≈

! caddr

Instruction

Branch

Address

17

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