Rockchip RK32 Series Guide

RK3288 Hardware Design Guide
RK3288
Hardware
Design Guide
Revision 1.2
Jun.18, 2014

RK3288 Hardware Design Guide
Revision History
Date
Revision
Description
2014-12-15
1.2

RK3288 Hardware Design Guide
Table of Contents
Table of Contents.....................................................................................................3
Warranty Disclaimer.................................................................................................5
1 RK3288 Brief Introduction ......................................................................................6
1.1 Chip Overview ........................................................................................... 6
1.2 Chip Feature .............................................................................................. 7
2 Selection of Reference Schematic .......................................................................... 10
3 PCB Design ........................................................................................................ 14
3.1 Structure..................................................................................................14
3.2 Design Rule ..............................................................................................15
3.3 Test Point .................................................................................................18
3.4 Silk-screen and Decal ................................................................................19
4 Thermal Dissipation............................................................................................. 20
5 POWER.............................................................................................................. 24
5.1 Schematic ................................................................................................24
5.2 PCB Layout...............................................................................................26
5.3 SYR827, SYR828 PCB Layout Guide .............................................................29
5.4 PMIC RC5T620 ..........................................................................................31
5.5 PMIC ACT8846 ..........................................................................................34
6 GPIO................................................................................................................. 40
6.1 Schematic ................................................................................................40
7 CPU&PMU .......................................................................................................... 42
7.1 Schematic ................................................................................................42
7.2 PCB Layout...............................................................................................43
8 DDR Controler & DRAM........................................................................................ 44
8.1 Schematic ................................................................................................44
8.2 PCB Layout（DDR0 channel,DDR1 channel）.................................................49
9 Flash control & Memory ....................................................................................... 52
9.1 Schematic ................................................................................................52
9.2 PCB Layout...............................................................................................55
10 TF Card ........................................................................................................... 57
10.1 Schematic ..............................................................................................57
10.2 PCB Layout .............................................................................................58
11 USB & HSIC ..................................................................................................... 59
11.1 Schematic ..............................................................................................59
11.2 PCB Layout .............................................................................................60
12 SarADC & Key................................................................................................... 63
12.1 Schematic ..............................................................................................63
12.2 PCB Layout .............................................................................................64
13 DVP Interface & Camera..................................................................................... 65
13.1 Schematic ..............................................................................................65
13.2 PCB Layout .............................................................................................67
14 Display Interface............................................................................................... 68
14.1 Schematic ..............................................................................................68
14.2 PCB Layout .............................................................................................73
15 LCM ................................................................................................................ 75
15.1 Schematic ..............................................................................................75
15.2 PCB Layout .............................................................................................78
16 Debug ............................................................................................................. 80
16.1 Schematic ..............................................................................................80
16.2 PCB Layout .............................................................................................80
17 Audio Codec & SPDIF......................................................................................... 81
17.1 Schematic ..............................................................................................81
17.2 PCB Layout .............................................................................................83
18 Touch Panel...................................................................................................... 84
18.1 Schematic ..............................................................................................84
18.2 PCB Layout .............................................................................................85
19 Sensor............................................................................................................. 86
19.1 Schematic ..............................................................................................86

RK3288 Hardware Design Guide
19.2 PCB Layout .............................................................................................88
20 eFUSE ............................................................................................................. 90
20.1 Schematic ..............................................................................................90
21 MAC ................................................................................................................ 91
21.1 Schematic ..............................................................................................91
21.2 PCB Layout .............................................................................................94
22 2G/3G/4G ........................................................................................................ 99
22.1 Schematic ..............................................................................................99
22.2 PCB Layout ...........................................................................................100
23 WIFI & BT ...................................................................................................... 103
23.1 Schematic ............................................................................................103
23.2 PCB Layout ...........................................................................................105
24 GPS .............................................................................................................. 112
24.1 PCB Layout ...........................................................................................112
25 NFC............................................................................................................... 114
25.1 Schematic ............................................................................................114
25.2 PCB Layout ...........................................................................................114

RK3288 Hardware Design Guide
Warranty Disclaimer
Rockchip Electronics Co., Ltd makes no warranty, representation or guarantee (expressed, implied, statutory, or otherwise) by
or with respect to anything in this document, and shall not be liable for any implied warranties of non-infringement,
merchantability or fitness for a particular purpose or for any indirect, special or consequential damages.
Information furnished is believed to be accurate and reliable. However, Rockchip Electronics Co., Ltd assumes no responsibility
for the consequences of use of such information or for any infringement of patents or other rights of third parties that may result
from its use.
Rockchip Electronics Co., Ltd’s products are not designed, intended, or authorized for using as components in systems intended
for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which
the failure of the Rockchip Electronics Co., Ltd’s product could create a situation where personal injury or death may occur,
should buyer purchase or use Rockchip Electronics Co., Ltd’s products for any such unintended or unauthorized application,
buyers shall indemnify and hold Rockchip Electronics Co., Ltd and its officers, employees, subsidiaries, affiliates, and distributors
harmless against all claims, costs, damages, expenses, and reasonable attorney fees arising out of, either directly or indirectly,
any claim of personal injury or death that may be associated with such unintended or unauthorized use, even if such claim
alleges that Rockchip Electronics Co., Ltd was negligent regarding the design or manufacture of the part.
Copyright and Patent Right
Information in this document is provided solely to enable system and software implementers to use Rockchip Electronics Co.,
Ltd ’s products. There are no expressed or implied copyright licenses granted hereunder to design or fabricate any integrated
circuits or integrated circuits based on the information in this document.
Rockchip Electronics Co., Ltd does not convey any license under its patent rights nor the rights
of others.
All copyright and patent rights referenced in this document belong to their respective owners
and shall be subject to corresponding copyright and patent licensing requirements.
Trademarks
Rockchip and RockchipTM logo and the name of Rockchip Electronics Co., Ltd’s products are trademarks of Rockchip Electronics
Co., Ltd. and are exclusively owned by Rockchip Electronics Co., Ltd. References to other companies and their products use
trademarks owned by the respective companies and are for reference purpose only.
Confidentiality
The information contained herein (including any attachments) is confidential. The recipient hereby acknowledges the
confidentiality of this document, and except for the specific purpose, this document shall not be disclosed to any third party.
Reverse engineering or disassembly is prohibited.
ROCKCHIP ELECTRONICS CO.,LTD. RESERVES THE RIGHT TO MAKE CHANGES IN ITS PRODUCTS OR PRODUCT
SPECIFICATIONS WITH THE INTENT TO IMPROVE FUNCTION OR DESIGN AT ANY TIME AND WITHOUT NOTICE
AND IS NOT REQUIRED TO UNDATE THIS DOCUMENTATION TO REFLECT SUCH CHANGES.
Copyright © 2015 Rockchip Electronics Co., Ltd.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by
any means, electric or mechanical, by photocopying, recording, or otherwise, without the prior written consent of Rockchip
Electronics Co., Ltd.

RK3288 Hardware Design Guide
1 RK3288 Brief Introduction
1.1 Chip Overview
RK32xx is a high-performance processor for high-end tablet, laptop and intelligent
monitor, and it is also one of the most powerful solution for 4Kx2K TV box.
RK3288 integrates quad-core Cortex-A17 with separately Neon and FPU coprocessors,
shared 1 MB L2 Cache. It has dual channel 64bits (DDR3/LPDDR2/LPDDR3) controller, which
provides demanding memory bandwidth for high-performance and high-resolution
applications. It also supports 8GB (max) address space for the address bit which is more than
32bits.
Embedded latest generation and most powerful GPU（Mali-T764）will provide smooth
operation for high-resolution(max 3840X2160) display, as well as mainstream games.RK3288
is completely compatible with OpenVG1.1, OpenGL ES1.1/2.0/3.0, OpenCL1.1, RenderScript
and DirectX11. It has a great progress on 3D compared with similar products.
RK3288 supports almost full-format, including H.264 and 4Kx2K.
RK3288 provides complete set of high-performance peripheral interface to support
flexible outputs such as dual channel LVDS, dual channel MIPI-DSI, eDP1.1, HDMI2.0, also
supports dual channel MIPI-CSI2 interface capable of ISP with 1.3 million pixels.
RK32xx
1MB L2 Cache
HDMI 2.0
4Kx2K 60fps
12bits DVP I/F
Image Interface
2D Graphics
Engine
1080p Video
encoder
(H.264)
Mali T764
GPU
4Kx2K Video
decoder
(H.264, H.265)
JPEG Encoder
Image Enhance
processor
JPEG Decoder
SDR/DDR/LBA
Nand Flash x2
LPDDR2/LPDDR3
(1200Mbps 64bit)
External Memory Interface
DDR3/DDR3L
(1200Mbps 64bit)
SD3.0/MMC4.5 x2
eMMC4.5 I/F
USB OTG 2.0
SDIO 3.0
UARTx5
I2C x6
SPI(M/S) x3
GPIOx128
USB HOST 2.0 X 2
GMAC
(RGMII/RMII)
I2S/PCM (8ch)
HSADC TS I/F
Connectivity
DMACx2 (13ch)
Int Controller
PMU
PWMx5(CABC)
WatchDog
Timerx8
Clock & Reset
System register
SAR-ADC
PLL x 5
System Peripheral
SRAM (96KB)
ROM (26KB)
eFuse
(32 x 32bits )
Memory
Multi-Media Processor
32KB I/D Cache
FPU/Neon
HSIC
GPS
32KB I/D Cache
Cortex-A12 Quad-Core
MIPI-CSI2 4 Lane
MIPI-CSI2 4 Lane
Or
MIPI_DSI 4 Lane
Dual Channel LVDS
Or
Parallel RGB interface
MIPI-DSI 4 Lane
1.0Gbps/lane
eDP1.3 4xlane
2.7Gbps/lane
SPDIF (8ch)
DVFS
DVFS
TS-ADC
13MP ISP
Security
(HDCP2.0,DRM,Sboot,Sdebug)
TS stream process
Crypto
Smart Card
PS/2
C2C
Fig 1-1

RK3288 Hardware Design Guide
1.2 Chip Feature
CPU
Quad-core Cortex-A17
Separately Integrated Neon and FPU per CPU
32KB/32KB L1 ICache/DCache per CPU
Unified 1MB L2 Cache
LPAE (Large Physical Address Extensions) , Support up to 8GB address space
Virtualization Extensions Support
DVFS support
GPU
3D GPU
Quad-Core Mali-T7 series, latest powerful graphics processor
Architected for GPU computing
Support OpenGL ES1.1/2.0/3.0, OpenVG1.1, OpenCL1.1 and Renderscript ,
Directx11
DVFS support
2D GPU
Multi-Core architecture
Up to 8Kx8K input and 4Kx4K output
High-quality image scale up/down
Dither operation
Image rotation with 90/180/270 degree or x/y-mirror
BitBLT, Alpha Blending,Raster Operation
VPU
Video Decoder
Support MPEG-2,MPEG-4,AVS,VC-1,VP8,MVC with up to 1080p@60fps
Support multi-format video decoder with up to 4Kx2K
High-quality deinterleave
Video Encoder
Support muti-format video encoder with up to 1080p@30fps
Video Interface
Video Input

RK3288 Hardware Design Guide
Dual-channel input for front and rear camera
Dual-channel MIPI-CSI2 interface with 4-lane per channel
8/10/12 bits standard DVP interface
Maximum 5Mpixel for front camera
Maximum 13Mpixel for rear camera with high-performance ISP
Video display
Dual-panel display with 2 separately interface
Maximum resolution is 4Kx2K
CABC support to decrease interface power
Dual channel 8/10bits LVDS
Dual channel MIPI-DSI
HDMI2.0 to support maximum 4Kx2K display
Optional eDP1.1 interface
Memory Interface
Nand Flash Interface
Dual-channel , 8bits per channel
Compatible with all of SLC/MLC/TLC Nand Flash, including DDR Nand
Embedded 60bits hardware ECC
8 chip selects to support more device
eMMC Interface
Compatible with eMMC4.5 standard
8bits data width
Support DDR-50,SDR-100
DDR interface
Dual channel 64bits interface
Support DDR3/DDR3L/LPDDR2/LPDDR3
Rich Connectivity
3 SD/MMC/SDIO interface, compatible with SD3.0,SDIO3.0 and MMC4.5
One 8-channels I2S/PCM interface, One 8-channels SPDIF interface
One USB2.0 OTG , Two USB2.0 Host

RK3288 Hardware Design Guide
100M/1000M RMII/RGMII Ethernet interface
Dual channel TS stream interface, descramble and demux support
Smart Card interface
GPS baseband interface
PS/2 master interface
5 UART, 3 SPI (master or slave), 6 I2C(up to 4Mbps), 5 PWM
Others
Standalone crypto and decrypto, compatible with AES 128bits/DES/3DES/SHA-1/
SHA-256/MD5/160bits PRNG
Full security solution to support HDCP2.x,secure boot, secure debug and DRM.
Temperature Sensor to support better temperature controll inside chip

RK3288 Hardware Design Guide
2 Selection of Reference Schematic
RK3288 integrates multiple function modules, basically each module has its own power
supply, and power pins of each module should be packaged within its own domain. In order to
avoid too many schematic versions as well as repeated corrections, function modules is
designed in separated pages and groups, and add some options in common use, as shown in
Fig 2-1. Customer can adjust schematic based on actual demands, please refer to RK3288
reference design published by RK for more details.
Fig 2-1