APPLICATIONS
7751 Group User’s Manual
17–5
17.1 Memory expansion
Fig. 17.1.1 Bus timing diagrams
E
ALE
t
SU(P0A/P1A/P2A-P1D/P2D)
t
w(EL)
t
d(E-P2Q)
t
d(E-P1Q)
R/W
E
ALE
Address low-order
t
su(P0A/P1A/P2A–P1D/P2D)
t
w(EL)
Port P0
(A
0
–A
7
)
Port P1
(A
8
–A
15
)
Port P2
(A
16
/D
0
–A
23
/D
7
)
t
d(E-P2Q)
R/W
t
a(AD)
t
su(D)
t
w(EL)
t
a(AD)
t
su(D)
t
w(EL)
: Specifications of the M37751
(The others are the external memory’s.)
External data bus width = 8 bits (BYTE = “H”)
External data bus width = 16 bits (BYTE = “L”)
External memory
output data
Data
Address low-order
Address middle-order
Address middle-order
Address
high-order
Address
high-order
When writing data
When reading data
When writing data
When reading data
Data (even address)
Address
middle-order
Data (odd address)
Address
middle-order
Address
high-order
Address
high-order
Address low-order
Address low-order
Port P0
(A
0
–A
7
)
Port P1
(A
8
/D
8
–A
15
/D
15
)
Port P2
(A
16
/D
0
–A
23
/D
7
)
External memory
output data
External memory
output data
Содержание 7700 FAMILY
Страница 2: ...MITSUBISHI 16 BIT SINGLE CHIP MICROCOMPUTER 7700 FAMILY 7751 SERIES 7751 Group User s Manual...
Страница 11: ...Table of Contents viii 7751 Group User s Manual MEMORANDUM...
Страница 12: ...CHAPTER 1 DESCRIPTION 1 1 Performance overview 1 2 Pin configuration 1 3 Pin description 1 4 Block diagram...
Страница 48: ...CHAPTER 3 INPUT OUTPUT PINS 3 1 Programmable I O ports 3 2 I O pins of internal peripheral devices...
Страница 157: ...TIMER B 6 28 7751 Group User s Manual 6 5 Pulse period pulse width measurement mode MEMORANDUM...
Страница 245: ...7751 Group User s Manual 8 36 A D CONVERTER Precautions when using A D converter MEMORANDUM...
Страница 246: ...CHAPTER 9 WATCHDOG TIMER 9 1 Block description 9 2 Operation description 9 3 Precautions when using watchdog timer...
Страница 254: ...CHAPTER 10 STOP MODE 10 1 Clock generating circuit 10 2 Operation description 10 3 Precautions for Stop mode...
Страница 260: ...CHAPTER 11 WAIT MODE 11 1 Clock generating circuit 11 2 Operation description 11 3 Precautions for Wait mode...
Страница 265: ...7751 Group User s Manual WAIT MODE 11 6 11 3 Precautions for Wait mode MEMORANDUM...
Страница 289: ...CONNECTION WITH EXTERNAL DEVICES 12 4 Hold function 7751 Group User s Manual 12 24 MEMORANDUM...
Страница 290: ...CHAPTER 13 RESET 13 1 Hardware reset 13 2 Software reset...
Страница 302: ...CHAPTER 14 CLOCK GENERATING CIRCUIT 14 1 Oscillation circuit example 14 2 Clock...
Страница 307: ...CLOCK GENERATING CIRCUIT 7751 Group User s Manual 14 6 14 2 Clock MEMORANDUM...
Страница 359: ...ELECTRICAL CHARACTERISTICS 7751 Group User s Manual 15 52 MEMORANDUM 15 15 Testing circuit for ports P0 to P8 1 and E...
Страница 360: ...CHAPTER 16 STANDARD CHARACTERISTICS 16 1 Standard characteristics...
Страница 365: ...STANDARD CHARACTERISTICS 16 1 Standard characteristics 7751 Group User s Manual 16 6 MEMORANDUM...
Страница 366: ...CHAPTER 17 APPLICATIONS 17 1 Memory expansion...
Страница 405: ...APPLICATIONS 7751 Group User s Manual 17 40 17 1 Memory expansion MEMORANDUM...
Страница 406: ...CHAPTER 18 PROM VERSION 18 1 EPROM mode 18 2 Usage precaution...
Страница 417: ...7751 Group User s Manual PROM VERSION 18 12 18 2 Usage precaution MEMORANDUM...
Страница 418: ...CHAPTER 19 FLASH MEMORY VERSION 19 1 Parallel input output mode 19 2 Serial input output mode...
Страница 451: ...FLASH MEMORY VERSION 7751 Group User s Manual 19 34 19 2 Serial input output mode MEMORANDUM...
Страница 483: ...APPENDIX 7751 Group User s Manual 20 32 Appendix 4 Package outlines Appendix 4 Package outlines 80P6N A...
Страница 484: ...APPENDIX 7751 Group User s Manual 20 33 Appendix 4 Package outlines 80D0...
Страница 489: ...APPENDIX 7751 Group User s Manual 20 38 Appendix 6 Hexadecimal instruction code table...
Страница 490: ...APPENDIX 7751 Group User s Manual 20 39 Appendix 6 Hexadecimal instruction code table...
Страница 491: ...APPENDIX 7751 Group User s Manual 20 40 Appendix 7 Machine instructions Appendix 7 Machine instructions...
Страница 492: ...APPENDIX 7751 Group User s Manual 20 41 Appendix 7 Machine instructions...
Страница 493: ...APPENDIX 7751 Group User s Manual 20 42 Appendix 7 Machine instructions...
Страница 494: ...APPENDIX 7751 Group User s Manual 20 43 Appendix 7 Machine instructions...
Страница 495: ...APPENDIX 7751 Group User s Manual 20 44 Appendix 7 Machine instructions...
Страница 496: ...APPENDIX 7751 Group User s Manual 20 45 Appendix 7 Machine instructions...
Страница 497: ...APPENDIX 7751 Group User s Manual 20 46 Appendix 7 Machine instructions...
Страница 498: ...APPENDIX 7751 Group User s Manual 20 47 Appendix 7 Machine instructions...
Страница 499: ...APPENDIX 7751 Group User s Manual 20 48 Appendix 7 Machine instructions...
Страница 500: ...APPENDIX 7751 Group User s Manual 20 49 Appendix 7 Machine instructions...
Страница 501: ...APPENDIX 7751 Group User s Manual 20 50 Appendix 7 Machine instructions...
Страница 502: ...APPENDIX 7751 Group User s Manual 20 51 Appendix 7 Machine instructions...
Страница 503: ...APPENDIX 7751 Group User s Manual 20 52 Appendix 7 Machine instructions...
Страница 504: ...APPENDIX 7751 Group User s Manual 20 53 Appendix 7 Machine instructions...
Страница 505: ...APPENDIX 7751 Group User s Manual 20 54 Appendix 7 Machine instructions...
Страница 506: ...APPENDIX 7751 Group User s Manual 20 55 Appendix 7 Machine instructions...
Страница 507: ...APPENDIX 7751 Group User s Manual 20 56 Appendix 7 Machine instructions...
Страница 508: ...APPENDIX 7751 Group User s Manual 20 57 Appendix 7 Machine instructions...
Страница 509: ...APPENDIX 7751 Group User s Manual 20 58 Appendix 7 Machine instructions...
Страница 510: ...APPENDIX 7751 Group User s Manual 20 59 Appendix 7 Machine instructions...
Страница 511: ...APPENDIX 7751 Group User s Manual 20 60 Appendix 7 Machine instructions...
Страница 535: ...APPENDIX Appendix 9 Q A 7751 Group User s Manual 20 84 MEMORANDUM...
Страница 536: ...GLOSSARY...
Страница 539: ...GLOSSARY 7751 Group User s Manual 4 MEMORANDUM...