I
CONTENTS
CONTENTS............................................................................................... I
1 What is A3100 ................................................................................3
2 Features of A3100 ..........................................................................3
2.1 Key Specification .....................................................................................................3
2.2 Power down Control ................................................................................................ 4
2.3 High-Performance CPU ...........................................................................................4
2.3.1 Main CPU ..................................................................................................................4
2.3.2 Slave CPU ..................................................................................................................4
2.4 Memory sub system ................................................................................................. 4
2.4.1 Boot ROM ................................................................................................................. 4
2.4.2 DDR2/DDR3 DRAM interface .................................................................................4
2.4.3 SPI Nand/NOR Flash ................................................................................................ 5
2.5 Video Decoder ......................................................................................................... 5
2.6 JPEG Encoder .......................................................................................................... 5
2.7 2D Graphics Acceleration ........................................................................................6
2.8 Display System ........................................................................................................ 6
2.8.1 Display engine ........................................................................................................... 6
2.8.2 HDMI TX .................................................................................................................. 7
2.8.3 VGA Output Interface ............................................................................................... 7
2.9 Audio System ...........................................................................................................7
2.9.1 Audio Encoding/Decoding ........................................................................................ 7
2.9.2 Audio Interface .......................................................................................................... 8
2.10 Efuse ...................................................................................................................... 8
2.11 External Peripherals ............................................................................................... 8
2.11.1 SDIO/eMMC ........................................................................................................... 8
2.11.2 USB ..........................................................................................................................8
2.11.3 MAC ........................................................................................................................ 8
2.11.4 SPI ............................................................................................................................9
2.11.5 UART.......................................................................................................................9
2.11.6 I2C ........................................................................................................................... 9
2.11.7 IR receiver ............................................................................................................... 9
2.11.8 PWM ......................................................................................................................10
2.11.9 GPIO ...................................................................................................................... 10
2.12 System Component .............................................................................................. 10
2.12.1 Clock and Reset unit ..............................................................................................10
2.12.2 Timer ......................................................................................................................10
2.12.3 Watch Dog .............................................................................................................10
