Rainbow Electronics T89C5115 - Manual (Page 102)

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T89C5115
4128A–8051–04/02
Table of Contents
Features ................................................................................................. 1
Description ............................................................................................ 1
Block Diagram ....................................................................................... 2
Pin Configuration .................................................................................. 3
I/O Configurations................................................................................................. 6
Port Structure........................................................................................................ 6
Read-Modify-Write Instructions ............................................................................ 7
Quasi-bidirectional Port Operation........................................................................ 7
SFR Mapping ......................................................................................... 9
Clock .................................................................................................... 13
Description.......................................................................................................... 13
Register .............................................................................................................. 16
Power Management ............................................................................ 17
Introduction ......................................................................................................... 17
Reset .................................................................................................................. 17
Reset Recommendation to Prevent Flash Corruption ........................................ 17
Idle Mode ............................................................................................................ 18
Power-down Mode.............................................................................................. 18
Registers..............................................................................................................20
Data Memory ....................................................................................... 21
Internal Space..................................................................................................... 21
Dual Data Pointer ............................................................................................... 23
Registers............................................................................................................. 24
EEPROM Data Memory ....................................................................... 26
Write Data in the Column Latches ...................................................................... 26
Programming ...................................................................................................... 26
Read Data........................................................................................................... 26
Examples ............................................................................................................ 27
Registers............................................................................................................. 28
Program/Code Memory ...................................................................... 29
Flash Memory Architecture................................................................................. 29
Overview of FM0 Operations .............................................................................. 31
Registers............................................................................................................. 37