BeagleBone Black System
Reference Manual
Page 8 of 126
5.14 CAPE BOARD SUPPORT................................................................................................................38
6.0 DETAILED HARDWARE DESIGN ...............................................................................................40
6.1 POWER SECTION ..............................................................................................................................41
6.1.1 TPS65217C PMIC .................................................................................................................41
6.1.2 DC Input ................................................................................................................................44
6.1.3 USB Power ............................................................................................................................45
6.1.4 Power Selection .....................................................................................................................45
6.1.5 Power Button .........................................................................................................................45
6.1.6 Battery Access Pads ...............................................................................................................46
6.1.7 Power Consumption ..............................................................................................................47
6.1.8 Processor Interfaces ..............................................................................................................47
6.1.9 Power Rails ...........................................................................................................................49
6.1.10 Power LED .......................................................................................................................52
6.1.11 TPS65217C Power Up Process ........................................................................................52
6.1.12 Processor Control Interface .............................................................................................53
6.1.13 Low Power Mode Support ................................................................................................53
6.2 SITARA AM3358BZCZ100 PROCESSOR ..........................................................................................54
6.2.1 Description ............................................................................................................................54
6.2.2 High Level Features ..............................................................................................................56
6.2.3 Documentation.......................................................................................................................56
6.2.4 Crystal Circuitry ....................................................................................................................57
6.2.5 Reset Circuitry .......................................................................................................................58
6.2.6 Memory Device ......................................................................................................................59
6.2.7 DDR3L Memory Design ........................................................................................................59
6.2.8 Power Rails ...........................................................................................................................61
6.2.9 VREF .....................................................................................................................................61
6.3 4GB EMMC MEMORY .....................................................................................................................62
6.3.1 eMMC Device ........................................................................................................................62
6.3.2 eMMC Circuit Design............................................................................................................63
6.4 BOARD ID EEPROM .......................................................................................................................64
6.5 MICRO SECURE DIGITAL ..................................................................................................................65
6.5.1 microSD Design .....................................................................................................................65
6.6 USER LEDS ......................................................................................................................................66
6.7 BOOT CONFIGURATION ....................................................................................................................67
6.7.1 Boot Configuration Design ....................................................................................................67
6.8 DEFAULT BOOT OPTIONS .................................................................................................................68
6.9 10/100 ETHERNET ............................................................................................................................69
6.9.1 Ethernet Processor Interface .................................................................................................69
6.9.2 Ethernet Connector Interface ................................................................................................70
6.9.3 Ethernet PHY Power, Reset, and Clocks ...............................................................................71
6.9.4 LAN8710A Mode Pins ...........................................................................................................72
6.10 HDMI INTERFACE .......................................................................................................................73
6.10.1 Supported Resolutions ......................................................................................................73
6.10.2 HDMI Framer ...................................................................................................................74
6.10.3 HDMI Video Processor Interface .....................................................................................74
6.10.4 HDMI Control Processor Interface ..................................................................................75
6.10.5 Interrupt Signal .................................................................................................................76
6.10.6 Audio Interface .................................................................................................................76
6.10.7 Power Connections ...........................................................................................................77
6.10.8 HDMI Connector Interface ...............................................................................................78
6.11 USB HOST ..................................................................................................................................79
6.11.1 Power Switch ....................................................................................................................79
6.11.2 ESD Protection .................................................................................................................79
6.11.3 Filter Options ....................................................................................................................79