User’s Manual U14826EJ5V0UD
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4.1.4 Data
memory addressing ............................................................................................................ 42
4.2 Processor
Registers .................................................................................................................. 44
4.2.1 Control
registers .......................................................................................................................... 44
4.2.2 General-purpose registers........................................................................................................... 46
4.2.3 Special
function registers (SFRs) ................................................................................................ 47
4.3
Instruction Address Addressing .............................................................................................. 49
4.3.1 Relative addressing..................................................................................................................... 49
4.3.2 Immediate addressing ................................................................................................................. 50
4.3.3 Table
indirect addressing ............................................................................................................ 50
4.3.4 Register addressing .................................................................................................................... 51
4.4
Operand Address Addressing.................................................................................................. 52
4.4.1 Direct
addressing ........................................................................................................................ 52
4.4.2 Short
direct addressing ............................................................................................................... 53
4.4.3
Special function register (SFR) addressing ................................................................................. 54
4.4.4 Register addressing .................................................................................................................... 55
4.4.5 Register
indirect addressing ........................................................................................................ 56
4.4.6 Based
addressing........................................................................................................................ 57
4.4.7 Stack
addressing......................................................................................................................... 57
CHAPTER 5 EEPROM (DATA MEMORY)............................................................................................ 58
5.1 Memory
Space............................................................................................................................ 58
5.2 EEPROM
Configuration............................................................................................................. 58
5.3
EEPROM Control Register ........................................................................................................ 58
5.4
Notes for EEPROM Writing ....................................................................................................... 61
CHAPTER 6 PORT FUNCTIONS........................................................................................................... 63
6.1 Port
Functions............................................................................................................................ 63
6.2 Port
Configuration ..................................................................................................................... 63
6.2.1 Port 0........................................................................................................................................... 64
6.2.2 Port 2........................................................................................................................................... 65
6.2.3 Port 4........................................................................................................................................... 66
6.3
Port Function Control Registers .............................................................................................. 67
6.4
Operation of Port Functions ..................................................................................................... 68
6.4.1 Writing
to I/O port ........................................................................................................................ 68
6.4.2 Reading
from I/O port.................................................................................................................. 68
6.4.3 Arithmetic
operation of I/O port.................................................................................................... 68
CHAPTER 7 CLOCK GENERATOR (
µ
PD789860 SUBSERIES) ....................................................... 69
7.1
Clock Generator Functions....................................................................................................... 69
7.2
Clock Generator Configuration ................................................................................................ 69
7.3
Clock Generator Control Register............................................................................................ 70
7.4
System Clock Oscillators.......................................................................................................... 71
7.4.1 System
clock oscillator ................................................................................................................ 71
7.4.2
Examples of incorrect resonator connection................................................................................ 72
7.4.3 Frequency divider........................................................................................................................ 73
Содержание PD789860
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