C8051F326 Datasheet, PDF (3/140 Pages) List of Unclassifed Manufacturers – Full Speed USB, 16 kB Flash MCU Family

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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