Table of Contents
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GENERAL.......................................................................................................................... 21
1.1
Features ...................................................................................................................................... 21
1.2
Applications................................................................................................................................ 21
1.3
Ordering Information ................................................................................................................. 21
1.4
Pin Configuration (Top View).................................................................................................... 22
1.5
78K/0S Series Lineup................................................................................................................. 23
1.6
Block Diagram ............................................................................................................................ 26
1.7
Functions .................................................................................................................................... 27
PIN FUNCTIONS .............................................................................................................. 28
2.1
List of Pin Functions.................................................................................................................. 28
2.2
Pin Functions ............................................................................................................................. 30
2.2.1
P00 to P07 (Port 0) ....................................................................................................................... 30
2.2.2
P10 to P17 (Port 1) ....................................................................................................................... 30
2.2.3
P20 to P26 (Port 2) ....................................................................................................................... 30
2.2.4
P40 to P47 (Port 4) ....................................................................................................................... 31
2.2.5
RESET.......................................................................................................................................... 31
2.2.6
X1, X2 ........................................................................................................................................... 31
2.2.7
REGC ........................................................................................................................................... 31
2.2.8
USBDM......................................................................................................................................... 31
2.2.9
USBDP ......................................................................................................................................... 31
2.2.10
V
2.2.11
V
( µ PD78F9801 only) ................................................................................................................ 32
2.2.12
V
2.2.13
IC (mask ROM version only)......................................................................................................... 32
2.3
Pin I/O Circuits and Recommended Connection of Unused Pins......................................... 33
CPU ARCHITECTURE ..................................................................................................... 35
3.1
Memory Space............................................................................................................................ 35
3.1.1
Internal program memory space................................................................................................... 37
3.1.2
Internal data memory (internal high-speed RAM) space .............................................................. 37
3.1.3
Special function register (SFR) area............................................................................................. 37
3.1.4
Data memory addressing.............................................................................................................. 38
3.2
Processor Registers .................................................................................................................. 40
3.2.1
Control registers ........................................................................................................................... 40
3.2.2
General-purpose registers ............................................................................................................ 43
3.2.3
Special function registers (SFRs) ................................................................................................. 44
3.3
Instruction Address Addressing .............................................................................................. 48
3.3.1
Relative addressing ...................................................................................................................... 48
3.3.2
Immediate addressing .................................................................................................................. 49
3.3.3
Table indirect addressing ............................................................................................................. 50
10
TABLE OF CONTENTS
.................................................................................................................................... 31
..................................................................................................................................... 31
User's Manual U12978EJ3V0UD
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