C8051F326 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F326

Full Speed USB, 16 kB Flash MCU Family

Silicon Laboratories 

C8051F326/7

Table of Contents

1. System Overview.................................................................................................... 13

1.1. CIP-51™ Microcontroller Core.......................................................................... 17

1.1.1. Fully 8051 Compatible.............................................................................. 17

1.1.2. Improved Throughput ............................................................................... 17

1.1.3. Additional Features .................................................................................. 18

1.2. On-Chip Memory............................................................................................... 19

1.3. Universal Serial Bus Controller ......................................................................... 20

1.4. Voltage Regulator ............................................................................................. 20

1.5. On-Chip Debug Circuitry................................................................................... 21

1.6. Programmable Digital I/O.................................................................................. 22

1.7. Serial Ports ....................................................................................................... 22

2. Absolute Maximum Ratings .................................................................................. 23

3. Global DC Electrical Characteristics .................................................................... 24

4. Pinout and Package Definitions............................................................................ 25

5. Voltage Regulator (REG0)...................................................................................... 31

5.1. Regulator Mode Selection................................................................................. 31

5.2. VBUS Detection ................................................................................................ 31

6. CIP-51 Microcontroller .......................................................................................... 35

6.1. Instruction Set ................................................................................................... 36

6.1.1. Instruction and CPU Timing ..................................................................... 36

6.1.2. MOVX Instruction and Program Memory ................................................. 37

6.2. Memory Organization........................................................................................ 41

6.2.1. Program Memory...................................................................................... 41

6.2.2. Data Memory............................................................................................ 42

6.2.3. General Purpose Registers ...................................................................... 42

6.2.4. Bit Addressable Locations........................................................................ 42

6.2.5. Stack ....................................................................................................... 42

6.2.6. Special Function Registers....................................................................... 43

6.2.7. Register Descriptions ............................................................................... 45

6.3. Interrupt Handler ............................................................................................... 48

6.3.1. MCU Interrupt Sources and Vectors ........................................................ 48

6.3.2. External Interrupts .................................................................................... 49

6.3.3. Interrupt Priorities ..................................................................................... 49

6.3.4. Interrupt Latency ...................................................................................... 49

6.3.5. Interrupt Register Descriptions................................................................. 50

6.4. Power Management Modes .............................................................................. 55

6.4.1. Idle Mode.................................................................................................. 55

6.4.2. Stop Mode ................................................................................................ 55

7. Reset Sources ....................................................................................................... 57

7.1. Power-On Reset ............................................................................................... 58

7.2. Power-Fail Reset / VDD Monitor....................................................................... 59

7.3. External Reset .................................................................................................. 60

7.4. Missing Clock Detector Reset........................................................................... 60

Rev. 1.1

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