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User’s Manual U15075EJ1V0UM00
11
CONTENTS
CHAPTER 1 GENERAL...........................................................................................................................25
1.1
1.2
1.3
1.4
Features.......................................................................................................................................25
Applications................................................................................................................................25
Ordering Information .................................................................................................................26
Pin Configuration (Top View)....................................................................................................27
1.4.1
Pin configuration of
μ
PD789426, 789436 Subseries (Top View) ................................................. 27
1.4.2
Pin configuration of
μ
PD789446, 789456 Subseries (Top View) ................................................. 28
78K/0S Series Lineup.................................................................................................................30
Block Diagram ............................................................................................................................32
1.6.1
Block diagram of
μ
PD789426, 789436 Subseries........................................................................ 32
1.6.2
Block diagram of
μ
PD789446, 789456 Subseries........................................................................ 33
Overview of Functions...............................................................................................................34
1.5
1.6
1.7
CHAPTER 2 PIN FUNCTIONS................................................................................................................37
2.1
2.2
List of Pin Functions..................................................................................................................37
Description of Pin Functions ....................................................................................................40
2.2.1
P00 to P03 (Port 0)....................................................................................................................... 40
2.2.2
P10, P11 (Port 1).......................................................................................................................... 40
2.2.3
P20 to P26 (Port 2)....................................................................................................................... 40
2.2.4
P30 to P33 (Port 3)....................................................................................................................... 41
2.2.5
P50 to P53 (Port 5)....................................................................................................................... 41
2.2.6
P60 to P65 (Port 6)....................................................................................................................... 41
2.2.7
P70 to P72 (Port 7)....................................................................................................................... 42
2.2.8
P80, P81 (Port 8).......................................................................................................................... 42
2.2.9
P90 to P97 (Port 9)....................................................................................................................... 42
2.2.10
S0 to S14...................................................................................................................................... 42
2.2.11
COM0 to COM3............................................................................................................................ 42
2.2.12
V
LC0
to V
LC2
................................................................................................................................... 42
2.2.13
CAPH, CAPL ................................................................................................................................ 42
2.2.14
RESET.......................................................................................................................................... 42
2.2.15
X1, X2........................................................................................................................................... 42
2.2.16
XT1, XT2 ...................................................................................................................................... 42
2.2.17
V
DD
................................................................................................................................................ 43
2.2.18
V
SS
................................................................................................................................................ 43
2.2.19
V
PP
(
μ
PD78F9436, 78F9456 only)................................................................................................ 43
2.2.20
IC (mask ROM version only)......................................................................................................... 43
Pin Input/Output Circuits and Recommended Connection of Unused Pins........................44
2.3
CHAPTER 3 CPU ARCHITECTURE.......................................................................................................47
3.1
Memory Space............................................................................................................................47
3.1.1
Internal program memory space................................................................................................... 53