UPD754264 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD754264

4-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

µPD754264

Address 7

6

5

0000H MBE RBE 0

0001H

0002H MBE RBE 0

0003H

0004H MBE RBE 0

0005H

0006H

0007H

0008H

0009H

000AH MBE RBE 0

000BH

000CH MBE RBE 0

000DH

000EH MBE RBE 0

000FH

Figure 5-1. Program Memory Map

4

0 Internal reset start address

0

(high-order 4 bits)

Internal reset start address (low-order 8 bits)

0 INTBT start address

INTBT start address

(high-order 4 bits)

CALLF !faddr instruction

(low-order 8 bits)

entry address

0 INT0 start address

(high-order 4 bits)

INT0 start address

(low-order 8 bits)

0 INTT0 start address

(high-order 4 bits)

INTT0 start address

(low-order 8 bits)

0 INTT1/INTT2 start address (high-order 4 bits)

INTT1/INTT2 start address (low-order 8 bits)

0 INTEE start address

(high-order 4 bits)

INTEE start address

(low-order 8 bits)

Branch address of

BR !addr

BRCB !caddr

BR BCDE

BR BCXA

BRA !addrNote

CALL !addr

CALLA !addrNote

instructions

GETI Branch/call

Addresses

BR $addr instruction

relative branch address

(–15 to –1, +2 to +16)

0020H

007FH

0080H

GET instruction reference table

07FFH

0800H

0FFFH

Note Can be used in the MkII mode only.

Remark In addition to the above, a branch can be made to an address with the low-order 8-bits only of the PC changed

by means of a BR PCDE or BR PCXA instruction.

14

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