C8051T601(2007) View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
C8051T601 Datasheet PDF : 168 Pages
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C8051T600/1/2/3/4/5
9.3. Interrupt Handler ............................................................................................... 70
9.3.1. MCU Interrupt Sources and Vectors ........................................................ 71
9.3.2. External Interrupts .................................................................................... 71
9.3.3. Interrupt Priorities ..................................................................................... 71
9.3.4. Interrupt Latency ...................................................................................... 72
9.3.5. Interrupt Register Descriptions................................................................. 73
9.4. Power Management Modes .............................................................................. 78
9.4.1. Idle Mode.................................................................................................. 78
9.4.2. Stop Mode ................................................................................................ 79
10. Reset Sources......................................................................................................... 81
10.1.Power-On Reset ............................................................................................... 82
10.2.Power-Fail Reset/VDD Monitor ......................................................................... 83
10.3.External Reset .................................................................................................. 83
10.4.Missing Clock Detector Reset .......................................................................... 83
10.5.Comparator0 Reset .......................................................................................... 83
10.6.PCA Watchdog Timer Reset ............................................................................ 83
10.7.OTP Error Reset............................................................................................... 84
10.8.Software Reset ................................................................................................. 84
11. One-Time Programmable Read-Only Memory ..................................................... 87
11.1.Programming the EPROM Memory.................................................................. 87
11.2.Security Options ............................................................................................... 88
11.3.Program Memory CRC ..................................................................................... 89
11.3.1.Performing 32-bit CRCs on Full EPROM Content ................................... 89
11.3.2.Performing 16-bit CRCs on 256-Byte EPROM Blocks............................. 89
12. Oscillators ............................................................................................................... 91
12.1.Calibrated Internal Oscillator ............................................................................ 91
12.2.External Oscillator Circuit ................................................................................. 93
12.3.System Clock Selection.................................................................................... 93
12.4.External Capacitor Example ............................................................................. 95
12.5.External RC Example ....................................................................................... 95
13. Port Input/Output.................................................................................................... 97
13.1.Priority Crossbar Decoder ................................................................................ 98
13.2.Port I/O Initialization ......................................................................................... 99
13.3.General Purpose Port I/O ............................................................................... 102
14. SMBus ................................................................................................................... 105
14.1.Supporting Documents ................................................................................... 106
14.2.SMBus Configuration...................................................................................... 106
14.3.SMBus Operation ........................................................................................... 106
14.3.1.Arbitration............................................................................................... 107
14.3.2.Clock Low Extension.............................................................................. 108
14.3.3.SCL Low Timeout................................................................................... 108
14.3.4.SCL High (SMBus Free) Timeout .......................................................... 108
14.4.Using the SMBus............................................................................................ 108
14.4.1.SMBus Configuration Register............................................................... 110
14.4.2.SMB0CN Control Register ..................................................................... 113
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Rev. 0.5
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