PAC5255 Datasheet, PDF (3/71 Pages) Active-Semi, Inc – Power Application Controller

PAC5255
Power Application Controller
12.5. Typical Performance Characteristics...................................................................................................... 46
13. ADC with Auto-Sampling Sequencer.............................................................................................................. 48
13.1. Block Diagram........................................................................................................................................ 48
13.2. Functional Description............................................................................................................................ 48
13.2.1. ADC................................................................................................................................................ 48
13.2.2. Auto-Sampling Sequencer............................................................................................................. 48
13.2.3. EMUX Control................................................................................................................................ 49
13.3. Electrical Characteristics........................................................................................................................ 49
14. Memory System............................................................................................................................................. 50
14.1. Features................................................................................................................................................. 50
14.2. Block Diagram........................................................................................................................................ 50
14.3. Functional Description............................................................................................................................ 50
14.3.1. Program and Data FLASH............................................................................................................. 50
14.3.2. SRAM............................................................................................................................................. 50
14.4. Electrical Characteristics........................................................................................................................ 51
15. Clock Control System..................................................................................................................................... 52
15.1. Features................................................................................................................................................. 52
15.2. Block Diagram........................................................................................................................................ 52
15.3. Functional Description............................................................................................................................ 53
15.3.1. Free Running Clock (FRCLK)........................................................................................................ 53
15.3.2. Fast Clock (FCLK).......................................................................................................................... 53
15.3.3. High-Speed Clock (HCLK)............................................................................................................. 53
15.3.4. Auxiliary Clock (ACLK)................................................................................................................... 53
15.3.5. Clock Gating................................................................................................................................... 53
15.3.6. Ring Oscillator (ROSC).................................................................................................................. 53
15.3.7. Trimmed 4MHz RC Oscillator......................................................................................................... 53
15.3.8. Internal Slow RC Oscillator............................................................................................................ 53
15.3.9. Crystal Oscillator Driver................................................................................................................. 53
15.3.10. External Clock Input..................................................................................................................... 53
15.3.11. PLL............................................................................................................................................... 53
15.4. Electrical Characteristics........................................................................................................................ 54
16. ARM Cortex-M0 Microcontroller Core............................................................................................................ 55
16.1. Features................................................................................................................................................. 55
16.2. Block Diagram........................................................................................................................................ 55
16.3. Functional Description............................................................................................................................ 55
16.4. Electrical Characteristics........................................................................................................................ 56
16.5. Typical Performance Characteristics...................................................................................................... 56
17. I/O Controller.................................................................................................................................................. 57
17.1. Features................................................................................................................................................. 57
17.2. Block Diagram........................................................................................................................................ 57
17.3. Functional Description............................................................................................................................ 57
17.4. Electrical Characteristics........................................................................................................................ 58
18. Serial Interface............................................................................................................................................... 59
18.1. Block Diagram........................................................................................................................................ 59
18.2. Functional Description............................................................................................................................ 59
18.2.1. I²C Controller.................................................................................................................................. 59
18.3. UART Controller..................................................................................................................................... 60
18.4. SPI Controller......................................................................................................................................... 60
18.5. Dynamic Characteristics........................................................................................................................ 61
19. Timers............................................................................................................................................................ 64
19.1. Block Diagram........................................................................................................................................ 64
19.2. Functional Description............................................................................................................................ 65
19.2.1. Timer A........................................................................................................................................... 65
19.2.2. Timer B........................................................................................................................................... 65
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Rev 1.1‒April 15, 2016