C8051F70X_0910 Datasheet, PDF (4/290 Pages) Silicon Laboratories – Mixed Signal ISP Flash MCU Family

C8051F70x/71x
15.2. EEPROM Memory ........................................................................................... 94
15.3. Data Memory ................................................................................................... 94
15.3.1. Internal RAM ........................................................................................... 94
15.3.1.1. General Purpose Registers ............................................................ 95
15.3.1.2. Bit Addressable Locations .............................................................. 95
15.3.1.3. Stack............................................................................................... 95
16. External Data Memory Interface and On-Chip XRAM ......................................... 96
16.1. Accessing XRAM............................................................................................. 96
16.1.1. 16-Bit MOVX Example ............................................................................ 96
16.1.2. 8-Bit MOVX Example .............................................................................. 96
16.2. Configuring the External Memory Interface ..................................................... 97
16.3. Port Configuration............................................................................................ 97
16.4. Multiplexed and Non-multiplexed Selection................................................... 100
16.4.1. Multiplexed Configuration...................................................................... 100
16.4.2. Non-multiplexed Configuration.............................................................. 101
16.5. Memory Mode Selection................................................................................ 102
16.5.1. Internal XRAM Only .............................................................................. 102
16.5.2. Split Mode without Bank Select............................................................. 102
16.5.3. Split Mode with Bank Select.................................................................. 103
16.5.4. External Only......................................................................................... 103
16.6. Timing............................................................................................................ 103
16.6.1. Non-Multiplexed Mode .......................................................................... 105
16.6.1.1. 16-bit MOVX: EMI0CF[4:2] = 101, 110, or 111............................. 105
16.6.1.2. 8-bit MOVX without Bank Select: EMI0CF[4:2] = 101 or 111 ....... 106
16.6.1.3. 8-bit MOVX with Bank Select: EMI0CF[4:2] = 110 ....................... 107
16.6.2. Multiplexed Mode .................................................................................. 108
16.6.2.1. 16-bit MOVX: EMI0CF[4:2] = 001, 010, or 011............................. 108
16.6.2.2. 8-bit MOVX without Bank Select: EMI0CF[4:2] = 001 or 011 ....... 109
16.6.2.3. 8-bit MOVX with Bank Select: EMI0CF[4:2] = 010 ....................... 110
17. In-System Device Identification.......................................................................... 113
18. Special Function Registers................................................................................. 115
19. Interrupts .............................................................................................................. 122
19.1. MCU Interrupt Sources and Vectors.............................................................. 123
19.1.1. Interrupt Priorities.................................................................................. 123
19.1.2. Interrupt Latency ................................................................................... 123
19.2. Interrupt Register Descriptions ...................................................................... 124
19.3. INT0 and INT1 External Interrupts................................................................. 131
20. Flash Memory....................................................................................................... 133
20.1. Programming The Flash Memory .................................................................. 133
20.1.1. Flash Lock and Key Functions .............................................................. 133
20.1.2. Flash Erase Procedure ......................................................................... 133
20.1.3. Flash Write Procedure .......................................................................... 134
20.2. Non-volatile Data Storage ............................................................................. 134
20.3. Security Options ............................................................................................ 134
20.4. Flash Write and Erase Guidelines ................................................................. 135
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Rev. 0.3