C8051F326 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

C8051F326

Full Speed USB, 16 kB Flash MCU Family

Unspecified 

C8051F326/7

Table of Contents

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

1.1. CIP-51™ Microcontroller Core.......................................................................... 16

1.1.1. Fully 8051 Compatible.............................................................................. 16

1.1.2. Improved Throughput ............................................................................... 16

1.1.3. Additional Features .................................................................................. 17

1.2. On-Chip Memory............................................................................................... 18

1.3. Universal Serial Bus Controller ......................................................................... 19

1.4. Voltage Regulator ............................................................................................. 19

1.5. On-Chip Debug Circuitry................................................................................... 20

1.6. Programmable Digital I/O.................................................................................. 21

1.7. Serial Ports ....................................................................................................... 21

2. Absolute Maximum Ratings .................................................................................. 22

3. Global DC Electrical Characteristics .................................................................... 23

4. Pinout and Package Definitions............................................................................ 24

5. Voltage Regulator (REG0)...................................................................................... 33

5.1. Regulator Mode Selection................................................................................. 33

5.2. VBUS Detection ................................................................................................ 33

6. CIP-51 Microcontroller .......................................................................................... 37

6.1. Instruction Set ................................................................................................... 38

6.1.1. Instruction and CPU Timing ..................................................................... 38

6.1.2. MOVX Instruction and Program Memory ................................................. 39

6.2. Memory Organization........................................................................................ 43

6.2.1. Program Memory...................................................................................... 43

6.2.2. Data Memory............................................................................................ 44

6.2.3. General Purpose Registers ...................................................................... 44

6.2.4. Bit Addressable Locations........................................................................ 44

6.2.5. Stack ....................................................................................................... 44

6.2.6. Special Function Registers....................................................................... 45

6.2.7. Register Descriptions ............................................................................... 47

6.3. Interrupt Handler ............................................................................................... 50

6.3.1. MCU Interrupt Sources and Vectors ........................................................ 50

6.3.2. External Interrupts .................................................................................... 51

6.3.3. Interrupt Priorities ..................................................................................... 51

6.3.4. Interrupt Latency ...................................................................................... 51

6.3.5. Interrupt Register Descriptions................................................................. 52

6.4. Power Management Modes .............................................................................. 57

6.4.1. Idle Mode.................................................................................................. 57

6.4.2. Stop Mode................................................................................................ 57

7. Reset Sources ....................................................................................................... 59

7.1. Power-On Reset ............................................................................................... 60

7.2. Power-Fail Reset / VDD Monitor....................................................................... 61

7.3. External Reset .................................................................................................. 62

7.4. Missing Clock Detector Reset........................................................................... 62

Rev. 0.5

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