
Preliminary User’s Manual U17734EJ1V0UD
9
CONTENTS
CHAPTER 1 OUTLINE ............................................................................................................................ 17
1.1 Features ........................................................................................................................................ 17
1.2 Applications.................................................................................................................................. 17
1.3 Ordering Information ................................................................................................................... 18
1.4 Pin Configuration (Top View)...................................................................................................... 19
1.5 78K0/Lx2 Series Lineup............................................................................................................... 21
1.6 Block Diagram .............................................................................................................................. 23
1.7 Outline of Functions .................................................................................................................... 24
CHAPTER 2 PIN FUNCTIONS ............................................................................................................... 26
2.1 Pin Function List .......................................................................................................................... 26
2.2 Description of Pin Functions ...................................................................................................... 29
2.2.1 P00, P01 (port 0) .............................................................................................................................29
2.2.2 P10 to P17 (port 1)...........................................................................................................................29
2.2.3 P20 to P24 (port 2)...........................................................................................................................30
2.2.4 P30 to P33 (port 3)...........................................................................................................................30
2.2.5 P120 to P124 (port 12).....................................................................................................................31
2.2.6 SDA0 ...............................................................................................................................................32
2.2.7 SCL0................................................................................................................................................32
2.2.8 AVREF ...............................................................................................................................................32
2.2.9 AVSS.................................................................................................................................................32
2.2.10 S0 to S19 .......................................................................................................................................32
2.2.11 COM0 to COM3 .............................................................................................................................32
2.2.12 LVDD ...............................................................................................................................................32
2.2.13 LVSS ...............................................................................................................................................32
2.2.14 VLC0 to VLC2 ....................................................................................................................................32
2.2.15 CAPH, CAPL .................................................................................................................................32
2.2.16 RESET...........................................................................................................................................32
2.2.17 REGC ............................................................................................................................................33
2.2.18 VDD .................................................................................................................................................33
2.2.19 VSS .................................................................................................................................................33
2.2.20 FLMD0 ...........................................................................................................................................33
2.3 Pin I/O Circuits and Recommended Connection of Unused Pins........................................... 34
CHAPTER 3 CPU ARCHITECTURE ...................................................................................................... 37
3.1 Memory Space .............................................................................................................................. 37
3.1.1 Internal program memory space ......................................................................................................42
3.1.2 Internal data memory space ............................................................................................................43
3.1.3 Special function register (SFR) area ................................................................................................44
3.1.4 Data memory addressing.................................................................................................................44
3.2 Processor Registers .................................................................................................................... 47
3.2.1 Control registers...............................................................................................................................47
3.2.2 General-purpose registers ...............................................................................................................51
3.2.3 Special function registers (SFRs).....................................................................................................52