UPD78320 datasheet(19/88 Pages) NEC

19 / 88 page

Figure 2-1. Memory Map

Note Accessed in external memory expansion mode.

Caution For word access (including stack operations) to the main RAM area (FE00H-FEFFH), the address

that specifies the operand must be an even value.

CALLF Instruction Entry Area

(2048

× 8)

Special Function Register

(SFR)

(256

× 8)

Main RAM

(256

× 8)

External MemoryNote

(48256

× 8)

Internal ROM

(16384

× 8)

FFFFH

FF00H

FEFFH

FC80H

FC7FH

4000H

3FFFH

0000H

Program Memory

Data Memory

Program Memory

Data Memory

Memory Space

(64K

× 8)

General Register

(128

× 8)

Macro Service Control

(36

× 8)

Data Area

(640

× 8)

Program Area

CALLT Instruction Table Area

(64

× 8)

Program Area

Vector Table Area

(64

× 8)

FEFFH

FE80H

FE06H

FC80H

0040H

003FH

0000H

0080H

007FH

0800H

07FFH

1000H

0FFFH

3FFFH

FE2BH

External Memory

(64640

× 8)

0FFFH

0000H

Peripheral RAM

(384

× 8)

FE00H

FDFFH

EA = H

(

µPD78322)

EA = L

•

µPD78320

•

µPD78322 ROM-Less Mode







UPD78320 Datasheet(PDF) 19 Page - NEC

UPD78320 Datasheet(HTML) 19 Page - NEC

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88

Datasheet Download

Link URL