Owners manual

H3
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 6
2.1.9.6. SPI ................................................................................................................................................ 63
2.1.9.7. TWI .............................................................................................................................................. 63
2.1.9.8. TS ................................................................................................................................................. 63
2.1.9.9. SCR .............................................................................................................................................. 64
2.1.10. Package ................................................................................................................................................ 64
2.2. System Block Diagram ................................................................................................................................. 65
Chapter 3 Pin Description ............................................................................................................................................ 66
3.1. Pin Characteristics ....................................................................................................................................... 66
3.2. GPIO Multiplexing Functions ....................................................................................................................... 74
3.3. Detailed Pin/Signal Description ................................................................................................................... 78
Chapter 4 System ......................................................................................................................................................... 83
4.1. Memory Mapping ....................................................................................................................................... 84
4.2. Boot System ................................................................................................................................................ 86
4.3. CCU .............................................................................................................................................................. 87
4.3.1. Overview ............................................................................................................................................. 87
4.3.2. Functionalities Description .................................................................................................................. 87
4.3.2.1. System Bus .................................................................................................................................. 87
4.3.2.2. Bus clock tree .............................................................................................................................. 89
4.3.3. Typical Applications ............................................................................................................................. 89
4.3.4. Register List ......................................................................................................................................... 90
4.3.5. Register Description ............................................................................................................................ 92
4.3.5.1. PLL_CPUX Control Register (Default Value: 0x00001000) .......................................................... 92
4.3.5.2. PLL_Audio Control Register (Default Value: 0x00035514) .......................................................... 93
4.3.5.3. PLL_VIDEO Control Register (Default Value: 0x03006207).......................................................... 94
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