18
3.2.18
3.2.19
3.2.20
3.2.21
Input/output Circuits and Recommended Connection of Unused Pins ......................
V
DD
.......................................................................................................................................
V
SS
.......................................................................................................................................
V
PP
(PROM versions only) ...................................................................................................
IC (Mask ROM version only)................................................................................................
70
70
70
70
71
3.3
CHAPTER 4
4.1
PIN FUNCTION (
μ
PD78054Y Subseries)..................................................................
Pin Function List...............................................................................................................
4.1.1
Normal operating mode pins ...............................................................................................
4.1.2
PROM programming mode pins (PROM versions only) ......................................................
Description of Pin Functions ...........................................................................................
4.2.1
P00 to P07 (Port 0) ..............................................................................................................
4.2.2
P10 to P17 (Port 1) ..............................................................................................................
4.2.3
P20 to P27 (Port 2) ..............................................................................................................
4.2.4
P30 to P37 (Port 3) ..............................................................................................................
4.2.5
P40 to P47 (Port 4) ..............................................................................................................
4.2.6
P50 to P57 (Port 5) ..............................................................................................................
4.2.7
P60 to P67 (Port 6) ..............................................................................................................
4.2.8
P70 to P72 (Port 7) ..............................................................................................................
4.2.9
P120 to P127 (Port 12) ........................................................................................................
4.2.10
P130 and P131 (Port 13) .....................................................................................................
4.2.11
AV
REF0
..................................................................................................................................
4.2.12
AV
REF1
..................................................................................................................................
4.2.13
AV
DD
.....................................................................................................................................
4.2.14
AV
SS
.....................................................................................................................................
4.2.15
RESET.................................................................................................................................
4.2.16
X1 and X2 ............................................................................................................................
4.2.17
XT1 and XT2 .......................................................................................................................
4.2.18
V
DD
.......................................................................................................................................
4.2.19
V
SS
.......................................................................................................................................
4.2.20
V
PP
(PROM versions only) ...................................................................................................
4.2.21
IC (Mask ROM version only)................................................................................................
Input/output Circuits and Recommended Connection of Unused Pins ......................
75
75
75
79
80
80
81
81
82
82
83
83
84
84
85
85
85
85
85
85
86
86
86
86
86
86
87
4.2
4.3
CHAPTER 5
5.1
CPU ARCHITECTURE................................................................................................
Memory Spaces.................................................................................................................
5.1.1
Internal program memory space..........................................................................................
5.1.2
Internal data memory space ................................................................................................
5.1.3
Special Function Register (SFR) area .................................................................................
5.1.4
External memory space .......................................................................................................
5.1.5
Data memory addressing ....................................................................................................
Processor Registers .........................................................................................................
5.2.1
Control registers ..................................................................................................................
5.2.2
General registers .................................................................................................................
5.2.3
Special Function Register (SFR) .........................................................................................
Instruction Address Addressing .....................................................................................
5.3.1
Relative addressing .............................................................................................................
5.3.2
Immediate addressing .........................................................................................................
91
91
99
100
100
100
101
109
109
112
114
118
118
119
5.2
5.3