3886 datasheet(39/380 Pages) RENESAS

39 / 380 page

HARDWARE

1-14

3886 Group User’s Manual

MEMORY

Special Function Register (SFR) Area

The Special Function Register area in the zero page contains con-

trol registers such as I/O ports and timers.

RAM

RAM is used for data storage and for stack area of subroutine

calls and interrupts.

ROM

The first 128 bytes and the last 2 bytes of ROM are reserved for

device testing and the rest is user area for storing programs. Pro-

gram/Erase of the reserved ROM area is possible in the EPROM

version and the flash memory version.

Interrupt Vector Area

The interrupt vector area contains reset and interrupt vectors.

Zero Page

Access to this area with only 2 bytes is possible in the zero page

addressing mode.

Special Page

Access to this area with only 2 bytes is possible in the special

page addressing mode.

Fig. 10 Memory map diagram

FUNCTIONAL DESCRIPTION

010016

000016

004016

FF0016

FFDC16

FFFE16

FFFF16

192

256

384

512

640

768

896

1024

1536

2048

XXXX16

00FF16

013F16

01BF16

023F16

02BF16

033F16

03BF16

043F16

063F16

083F16

4096

8192

12288

16384

20480

24576

28672

32768

36864

40960

45056

49152

53248

57344

61440

F00016

E00016

D00016

C00016

B00016

A00016

900016

800016

700016

600016

500016

400016

300016

200016

100016

F08016

E08016

D08016

C08016

B08016

A08016

908016

808016

708016

608016

508016

408016

308016

208016

108016

YYYY16

ZZZZ16

RAM

ROM

0FFE16

0FFF16

SFR area

Not used

Interrupt vector area

ROM area

Reserved ROM area

(Note 2) (128 bytes)

Zero page

Special page

RAM area

RAM size

(bytes)

Address

XXXX16

ROM size

(bytes)

Address

YYYY16

Reserved ROM area

(Note 2)

Address

ZZZZ16

SFR area (Note 1)

Notes 1: This area is SFR in M38869FFA.

This area is Reserved in M38869MFA/MCA/M8A.

This area is not used in M38867M8A/E8A.

2: This area is usable in EPROM version and flash memory version.

3886 датащи(PDF) 39 Page - Renesas Technology Corp

3886 датащи(HTML) 39 Page - Renesas Technology Corp

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 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL