STC12LE5616AD datasheet(3/377 Pages) STC

3 / 377 page

STC

MCU

Limited

2.3.6 Watch-Dog-Timer ................................................................................................ 52

2.3.7 Warm Boot and Cold Boot Reset......................................................................... 56

Chapter 3. Memory Organization ..............................................57

3.1 Program Memory ................................................................................. 57

3.2 Data Memory(SRAM).......................................................................... 58

3.2.1 On-chip Scratch-Pad RAM.................................................................................. 58

3.2.2 Auxiliary RAM .................................................................................................... 61

3.3 Special Function Registers ................................................................... 65

3.3.1 Special Function Registers Address Map ............................................................ 65

3.3.2 Special Function Registers Bits Description ....................................................... 66

Chapter 4. Configurable I/O Ports of STC12C5620AD series 71

4.1 I/O Ports Configurations ...................................................................... 71

4.2 I/O ports Modes.................................................................................... 74

4.2.1 Quasi-bidirectional I/O ........................................................................................ 74

4.2.2 Push-pull Output.................................................................................................. 75

4.2.3 Input-only (High-Impedance)Mode..................................................................... 75

4.2.4 Open-drain Output............................................................................................... 75

4.3 I/O port application notes ..................................................................... 76

4.4 Typical transistor control circuit........................................................... 76

4.5 Typical diode control circuit................................................................. 76

4.6 3V/5V hybrid system............................................................................ 77

4.7 How to make I/O port low after MCU reset......................................... 78

4.8 I/O status while PWM outputing.......................................................... 78

4.9 I/O drive LED application circuit......................................................... 79

4.10 I/O immediately drive LCD application circuit.................................. 80

4.11 Using A/D Conversion to scan key application circuit....................... 81

Chapter 5. Instruction System ....................................................82

5.1 Addressing Modes ................................................................................ 82

5.2 Instruction Set Summary ...................................................................... 83

5.3 Instruction Definitions.......................................................................... 88

Chapter 6. Interrupt System .....................................................125

6.1 Interrupt Structure .............................................................................. 127

6.2 Interrupt Register................................................................................ 129

6.3 Interrupt Priorities .............................................................................. 139

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