CONNECTION WITH EXTERNAL DEVICES
7751 Group User’s Manual
12–3
12.1 Signals required for accessing external devices
RDY
A
20
/D
4
A
21
/D
5
A
22
/D
6
A
23
/D
7
R/W
BHE
ALE
HLDA
V
ss
E
X
OUT
X
IN
RESET
CNV
SS
BYTE
HOLD
P8
4
/CTS
1
/RTS
1
P8
5
/CLK
1
P8
6
/R
X
D
1
P8
7
/T
X
D
1
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
/D
8
A
9
/D
9
A
10
/D
10
A
11
/D
11
A
12
/D
12
A
13
/D
13
A
14
/D
14
A
15
/D
15
A
16
/D
0
A
17
/D
1
A
18
/D
2
A
19
/D
3
P7
0
/AN
0
P6
7
/TB2
IN
P6
6
/TB1
IN
P6
5
/TB0
IN
P6
4
/INT
2
P6
3
/INT
1
P6
2
/INT
0
P6
1
/TA4
IN
P6
0
/TA4
OUT
P5
7
/TA3
IN
P5
6
/TA3
OUT
P5
5
/TA2
IN
P5
4
/TA2
OUT
P5
3
/TA1
IN
P5
2
/TA1
OUT
P5
1
/TA0
IN
P5
0
/TA0
OUT
25
27
26
28
34
29
30
31
32
33
35
36
37
38
39
40
1
4
3
2
5
P8
3
/T
X
D
0
P8
2
/R
X
D
0
P8
1
/CLK
0
P8
0
/CTS
0
/RTS
0
V
CC
AV
CC
V
REF
AV
SS
V
SS
P7
7
/AN
7
/AD
TRG
P7
6
/AN
6
P7
5
/AN
5
P7
4
/AN
4
P7
3
/AN
3
P7
2
/AN
2
P7
1
/AN
1
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21
64
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44
80
79
78
77
76
75
74
73
72
71
69
68
67
66
65
70
43 42
41
M37751M6C-XXXFP
22 23 24
P4
7
P4
6
P4
5
P4
4
P4
3
P4
2
/
1
●
External data bus width = 16 bits (BYTE = “L”)
✽
: As
1
in microprocessor mode
: External address bus, external data bus,
bus control signal
RDY
A
20
/D
4
A
21
/D
5
A
22
/D
6
A
23
/D
7
R/W
BHE
ALE
HLDA
V
ss
E
X
OUT
X
IN
RESET
CNV
SS
BYTE
HOLD
A
11
A
12
A
13
A
14
A
15
A
16
/D
0
A
17
/D
1
A
18
/D
2
A
19
/D
3
P8
4
/CTS
1
/RTS
1
P8
5
/CLK
1
P8
6
/R
X
D
1
P8
7
/T
X
D
1
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
10
1
4
3
2
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23
24
P7
0
/AN
0
P6
7
/TB2
IN
P6
6
/TB1
IN
P6
5
/TB0
IN
P6
4
/INT
2
P6
3
/INT
1
P6
2
/INT
0
P6
1
/TA4
IN
P6
0
/TA4
OUT
P5
7
/TA3
IN
P5
6
/TA3
OUT
P5
5
/TA2
IN
P5
4
/TA2
OUT
P5
3
/TA1
IN
P5
2
/TA1
OUT
P5
1
/TA0
IN
P5
0
/TA0
OUT
25
27
26
28
34
29
30
31
32
33
35
36
37
38
39
40
P8
3
/T
X
D
0
P8
2
/R
X
D
0
P8
1
/CLK
0
P8
0
/CTS
0
/RTS
0
V
CC
AV
CC
V
REF
AV
SS
V
SS
P7
7
/AN
7
/AD
TRG
P7
6
/AN
6
P7
5
/AN
5
P7
4
/AN
4
P7
3
/AN
3
P7
2
/AN
2
P7
1
/AN
1
64
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44
80
79
78
77
76
75
74
73
72
71
69
68
67
66
65
70
43 42
41
M37751M6C-XXXFP
P4
7
P4
6
P4
5
P4
4
P4
3
P4
2
/
1
●
External data bus width = 8 bits (BYTE = “H”)
✽
: As
1
in microprocessor mode
: External address bus, external data bus,
bus control signal
Fig. 12.1.1 Pin configuration in memory expansion and microprocessor modes (top view)
✽
✽
Summary of Contents for 7700 FAMILY
Page 2: ...MITSUBISHI 16 BIT SINGLE CHIP MICROCOMPUTER 7700 FAMILY 7751 SERIES 7751 Group User s Manual...
Page 11: ...Table of Contents viii 7751 Group User s Manual MEMORANDUM...
Page 157: ...TIMER B 6 28 7751 Group User s Manual 6 5 Pulse period pulse width measurement mode MEMORANDUM...
Page 245: ...7751 Group User s Manual 8 36 A D CONVERTER Precautions when using A D converter MEMORANDUM...
Page 265: ...7751 Group User s Manual WAIT MODE 11 6 11 3 Precautions for Wait mode MEMORANDUM...
Page 289: ...CONNECTION WITH EXTERNAL DEVICES 12 4 Hold function 7751 Group User s Manual 12 24 MEMORANDUM...
Page 290: ...CHAPTER 13 RESET 13 1 Hardware reset 13 2 Software reset...
Page 302: ...CHAPTER 14 CLOCK GENERATING CIRCUIT 14 1 Oscillation circuit example 14 2 Clock...
Page 307: ...CLOCK GENERATING CIRCUIT 7751 Group User s Manual 14 6 14 2 Clock MEMORANDUM...
Page 360: ...CHAPTER 16 STANDARD CHARACTERISTICS 16 1 Standard characteristics...
Page 366: ...CHAPTER 17 APPLICATIONS 17 1 Memory expansion...
Page 405: ...APPLICATIONS 7751 Group User s Manual 17 40 17 1 Memory expansion MEMORANDUM...
Page 406: ...CHAPTER 18 PROM VERSION 18 1 EPROM mode 18 2 Usage precaution...
Page 417: ...7751 Group User s Manual PROM VERSION 18 12 18 2 Usage precaution MEMORANDUM...
Page 418: ...CHAPTER 19 FLASH MEMORY VERSION 19 1 Parallel input output mode 19 2 Serial input output mode...
Page 451: ...FLASH MEMORY VERSION 7751 Group User s Manual 19 34 19 2 Serial input output mode MEMORANDUM...
Page 484: ...APPENDIX 7751 Group User s Manual 20 33 Appendix 4 Package outlines 80D0...
Page 489: ...APPENDIX 7751 Group User s Manual 20 38 Appendix 6 Hexadecimal instruction code table...
Page 490: ...APPENDIX 7751 Group User s Manual 20 39 Appendix 6 Hexadecimal instruction code table...
Page 492: ...APPENDIX 7751 Group User s Manual 20 41 Appendix 7 Machine instructions...
Page 493: ...APPENDIX 7751 Group User s Manual 20 42 Appendix 7 Machine instructions...
Page 494: ...APPENDIX 7751 Group User s Manual 20 43 Appendix 7 Machine instructions...
Page 495: ...APPENDIX 7751 Group User s Manual 20 44 Appendix 7 Machine instructions...
Page 496: ...APPENDIX 7751 Group User s Manual 20 45 Appendix 7 Machine instructions...
Page 497: ...APPENDIX 7751 Group User s Manual 20 46 Appendix 7 Machine instructions...
Page 498: ...APPENDIX 7751 Group User s Manual 20 47 Appendix 7 Machine instructions...
Page 499: ...APPENDIX 7751 Group User s Manual 20 48 Appendix 7 Machine instructions...
Page 500: ...APPENDIX 7751 Group User s Manual 20 49 Appendix 7 Machine instructions...
Page 501: ...APPENDIX 7751 Group User s Manual 20 50 Appendix 7 Machine instructions...
Page 502: ...APPENDIX 7751 Group User s Manual 20 51 Appendix 7 Machine instructions...
Page 503: ...APPENDIX 7751 Group User s Manual 20 52 Appendix 7 Machine instructions...
Page 504: ...APPENDIX 7751 Group User s Manual 20 53 Appendix 7 Machine instructions...
Page 505: ...APPENDIX 7751 Group User s Manual 20 54 Appendix 7 Machine instructions...
Page 506: ...APPENDIX 7751 Group User s Manual 20 55 Appendix 7 Machine instructions...
Page 507: ...APPENDIX 7751 Group User s Manual 20 56 Appendix 7 Machine instructions...
Page 508: ...APPENDIX 7751 Group User s Manual 20 57 Appendix 7 Machine instructions...
Page 509: ...APPENDIX 7751 Group User s Manual 20 58 Appendix 7 Machine instructions...
Page 510: ...APPENDIX 7751 Group User s Manual 20 59 Appendix 7 Machine instructions...
Page 511: ...APPENDIX 7751 Group User s Manual 20 60 Appendix 7 Machine instructions...
Page 535: ...APPENDIX Appendix 9 Q A 7751 Group User s Manual 20 84 MEMORANDUM...
Page 536: ...GLOSSARY...
Page 539: ...GLOSSARY 7751 Group User s Manual 4 MEMORANDUM...