Rainbow Electronics AT89C5132 - Manual (Page 159)

159
AT8xC5132
4173A–8051–08/02
Table of Contents
Features ................................................................................................. 1
Description ............................................................................................ 1
Typical Applications ............................................................................. 1
Block Diagram ....................................................................................... 2
Pin Configuration .................................................................................. 3
Pin Description ..................................................................................... 6
Internal Pin Structure .......................................................................................... 11
Clock Controller .................................................................................. 12
Oscillator............................................................................................................. 12
X2 Feature .......................................................................................................... 12
PLL ..................................................................................................................... 13
Registers.............................................................................................................. 15
Program/Code Memory ...................................................................... 18
ROM Memory Architecture ................................................................................. 18
Flash Memory Architecture................................................................................. 19
Hardware Security System ................................................................................. 20
Boot Memory Execution...................................................................................... 20
Registers.............................................................................................................. 22
Hardware Bytes ................................................................................................... 23
Data Memory ....................................................................................... 24
Internal Space..................................................................................................... 24
External Space .................................................................................................... 26
Dual Data Pointer ............................................................................................... 28
Registers............................................................................................................. 29
Special Function Registers ................................................................ 31
Interrupt System ................................................................................. 36
Interrupt System Priorities .................................................................................. 36
External Interrupts .............................................................................................. 39
Registers.............................................................................................................. 40
Power Management ............................................................................ 46
Reset .................................................................................................................. 46
Reset Recommendation to Prevent Flash Corruption ........................................ 46
Idle Mode ............................................................................................................ 47