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NEC PD754144 User Manual

Page 64

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CHAPTER 4 INTERNAL CPU FUNCTION

64

User’s Manual U10676EJ3V0UM

Figure 4-3. Program Memory Map

7

6

0

MBE

RBE

Internal reset start address

(higher 4 bits)

Internal reset start address

(lower 8 bits)

MBE

RBE

INTBT start address

(higher 4 bits)

INTBT start address

(lower 8 bits)

MBE

RBE

INT0 start address

(higher 4 bits)

INT0 start address

(lower 8 bits)

MBE

RBE

INTT0 start address

(higher 4 bits)

INTT0 start address

(lower 8 bits)

MBE

RBE

INTT1/INTT2 start address

(higher 4 bits)

INTT1/INTT2 start address

(lower 8 bits)

MBE

RBE

INTEE start address

(higher 4 bits)

INTEE start address

(lower 8 bits)

GET instruction reference table

0000H

0001H

0002H

0003H

0004H

0005H

0006H

0007H

0008H

0009H

000AH

000BH

000CH

000DH

000EH

000FH

0020H

007FH

0080H

07FFH

0800H

0FFFH

CALLF !faddr instruction

entry address

Branch address of

BR !addr

BRCB !caddr

BR BCDE
BR BCXA

BRA !addr1

Note

CALL !addr

CALLA !addr1

Note

instructions

GETI Branch/call

Addresses

BR $addr instruction

relative branch address

(–15 to –1, +2 to +16)

Address

5

0

0

0

0

0

0

4

0

0

0

0

0

0

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 lower 8-bits only of the PC changed

by means of a BR PCDE or BR PCXA instruction.

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