C8051F52x-53x
9.1.1. Instruction and CPU Timing ..................................................................... 76
9.1.2. MOVX Instruction and Program Memory ................................................. 77
9.2. Register Descriptions........................................................................................ 80
9.3. Power Management Modes.............................................................................. 83
9.3.1. Idle Mode.................................................................................................. 84
9.3.2. Stop Mode................................................................................................ 84
10.Memory Organization and SFRs ........................................................................... 85
10.1.Program Memory.............................................................................................. 85
10.2.Data Memory.................................................................................................... 86
10.3.General Purpose Registers .............................................................................. 86
10.4.Bit Addressable Locations................................................................................ 86
10.5.Stack................................................................................................................. 86
10.6.Special Function Registers............................................................................... 87
11.Interrupt Handler .................................................................................................... 91
11.1.MCU Interrupt Sources and Vectors................................................................. 91
11.2.Interrupt Priorities ............................................................................................. 91
11.3.Interrupt Latency............................................................................................... 91
11.4.Interrupt Register Descriptions......................................................................... 93
11.5.External Interrupts ............................................................................................ 97
12.Reset Sources......................................................................................................... 99
12.1.Power-On Reset............................................................................................. 100
12.2.Power-Fail Reset / VDD Monitor .................................................................... 101
12.3.External Reset................................................................................................ 102
12.4.Missing Clock Detector Reset ........................................................................ 102
12.5.Comparator Reset .......................................................................................... 102
12.6.PCA Watchdog Timer Reset .......................................................................... 103
12.7.Flash Error Reset ........................................................................................... 103
12.8.Software Reset............................................................................................... 103
13.Flash Memory ....................................................................................................... 107
13.1.Programming The Flash Memory................................................................... 107
13.1.1.Flash Lock and Key Functions............................................................... 107
13.1.2.Flash Erase Procedure .......................................................................... 108
13.1.3.Flash Write Procedure ........................................................................... 108
13.2.Flash Write and Erase Guidelines.................................................................. 109
13.2.1.V Maintenance and the V monitor ................................................. 110
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13.2.2.PSWE Maintenance............................................................................... 111
13.2.3.System Clock ......................................................................................... 111
13.3.Non-volatile Data Storage .............................................................................. 112
13.4.Security Options ............................................................................................. 112
14.Port Input/Output.................................................................................................. 117
14.1.Priority Crossbar Decoder .............................................................................. 119
14.2.Port I/O Initialization ....................................................................................... 123
14.3.General Purpose Port I/O............................................................................... 125
15.Oscillators............................................................................................................. 133
15.1.Programmable Internal Oscillator................................................................... 133
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Rev. 0.3
SILICON [ SILICON ]
