1.1 Overview
RK3326-S is a high-performance Quad-core application processor designed for personal tablet and smart audio device.Many embedded powerful hardware engines are provided to optimize performance for high-end application. RK3326-S supports almost full-format H.264 decoder by 1080p@60fps,H.265 decoder by 1080p@60fps, also support H.264 encoder by 1080p@30fps, high-quality JPEG encoder/decoder.
Embedded ARM G31-2EE GPU makes RK3326-S completely compatible with OpenGL ES1.1/2.0/3.2, DirectX 11 FL9_3, OpenCL 2.0 and Vulkan 1.0. Special 2D hardware engine will maximize display performance and provide very smoothly operation.
RK3326-S has high-performance external memory interface(DDR3/DDR3L/DDR4/LPDDR3/LPDDR4) capable of sustaining demanding memory bandwidths.
1.2 Features
The features listed below which may or may not be present in actual product, may be subject to the third party licensing requirements. Please contact Rockchip for actual product feature configurations and licensing requirements.
1.2.1 Microprocessor
Quad-core ARM Cortex-A35 CPU
Full implementation of the ARM architecture v8-A instruction set
ARM Neon Advanced SIMD (single instruction, multiple data) support for accelerated media and signal processing computation
ARMv8 Cryptography Extensions
In-order pipeline with symmetric dual-issue of most instructions
512KB unified system L2 cache
Include VFP v3 hardware to support single and double-precision operations
Integrated 32KB L1 instruction cache, 32KB L1 data cache with 4-way set associative
TrustZone technology support
Separate power domains for CPU core system to support internal power switch and externally turn on/off based on different application scenario
PD_A35_0: 1st Cortex-A35 + Neon + FPU + L1 I/D Cache
PD_A35_1: 2nd Cortex-A35 + Neon + FPU + L1 I/D Cache
PD_A35_2: 3rd Cortex-A35 + Neon + FPU + L1 I/D Cache
PD_A35_3: 4th Cortex-A35 + Neon + FPU + L1 I/D Cache
One isolated voltage domain to support DVFS
1.2.2 Memory Organization
Internal on-chip memory
BootROM
SYSTEM_SRAM in the voltage domain of VD_LOGIC
PMU_SRAM in the voltage domain of VD_PMU for low power application
External off-chip memory①
DDR3/DDR3L/DDR4/LPDDR3/LPDDR4
SPI Flash
eMMC
SD_Card
8bits Async Nand Flash
RK3326-S Datasheet Rev 1.0-ScenSmart
8bits toggle Nand Flash
8bit ONFI Nand Flash
1.2.3 Internal Memory
Internal BootRom
Support system boot from the following device:
SPI Flash interface
eMMC interface
SDMMC interface
Toggle Nand Flash
Async Nand FLash
Support system code download by the following interface:
USB OTG interface (Device mode)
SYSTEM_SRAM
Size: 64KB
PMU_SRAM
Size: 8KB
1.2.4 External Memory or Storage device
Dynamic Memory Interface (DDR3/DDR3L/DDR4/LPDDR3/LPDDR4)
Compatible with JEDEC standards of DDR3/DDR3L/DDR4/LPDDR3/LPDDR4
Support 32-bit data width, 2 ranks (chip selects), max 4GB addressing space per rank; total addressing space is 4GB(max) also
Low power modes, such as power-down and self-refresh for SDRAM
Compensation for board delays and variable latencies through programmable pipelines
Programmable output and ODT impedance with dynamic PVT compensation
eMMC Interface
Compatible with standard iNAND interface
Support eMMC ver4.51, compatible with 4.41, 5.0 and 5.1
Support three data bus width: 1-bit, 4-bit or 8-bit
Support up to HS200, but not support CMD Queue
SD/MMC Interface
Compatible with SD3.0, MMC ver4.51
Data bus width is 4bits
Nand Flash Interface
Support async nand flash, each channel 8bits, up to 4 banks
Support ONFI Synchronous Flash Interface, each channel 8bits, up to 4 banks
Support Toggle Flash Interface, each channel 8bits, up to 4 banks
Support LBA nand flash in async or sync mode
Up to 70bits/1KB hardware ECC
For DDR nand flash, support DLL bypass and 1/4 or 1/8 clock adjust, maximum clock rate is 75MHz
For async nand flash, support configurable interface timing , maximum data rate is 8bit/cycle
1.2.5 System Component
CRU (clock & reset unit)
Support clock gating control for individual components
One oscillator with 24MHz clock input
Support global soft-reset control for whole chip, also individual soft-reset for each component
RK3326-S Datasheet Rev 1.0-ScenSmart
PMU(power management unit)
3 separate voltage domains(VD_CORE/VD_LOGIC/VD_PMU)
14 separate power domains, which can be power up/down by software based on different application scenes
Multiple configurable work modes to save power by different frequency or automatic clock gating control or power domain on/off control
Timer
Six 64bits timers with interrupt-based operation for non-secure application
Two 64bits timers with interrupt-based operation for secure application
Support two operation modes: free-running and user-defined count
Support timer work state checkable
PWM
Eight on-chip PWMs(PWM0~PWM7) with interrupt-based operation
Programmable pre-scaled operation to bus clock and then further scaled
Embedded 32-bit timer/counter facility
Support capture mode
Support continuous mode or one-shot mode
Provides reference mode and output various duty-cycle waveform
Optimized for IR application for PWM3 and PWM7
Watchdog
32-bit watchdog counter
Counter counts down from a preset value to 0 to indicate the occurrence of a timeout
WDT can perform two types of operations when timeout occurs:
Generate a system reset
First generate an interrupt and if this is not cleared by the service routine by the time a second timeout occurs then generate a system reset
Programmable reset pulse length
Totally 16 defined-ranges of main timeout period
One Watchdog for non-secure application
One Watchdog for secure application
Interrupt Controller
Support 3 PPI interrupt source and 128 SPI interrupt sources input from different components
Support 16 software-triggered interrupts
Two interrupt outputs (nFIQ and nIRQ) separately for each Cortex-A35, both are low-level sensitive
Support different interrupt priority for each interrupt source, and they are always software-programmable
DMAC
Micro-code programming based DMA
The specific instruction set provides flexibility for programming DMA transfers
Linked list DMA function is supported to complete scatter-gather transfer
Support internal instruction cache
Embedded DMA manager thread
Support data transfer types with memory-to-memory, memory-to-peripheral,peripheral-to-memory
Signals the occurrence of various DMA events using the interrupt output signals
Mapping relationship between each channel and different interrupt outputs is software-programmable
RK3326-S Datasheet Rev 1.0-ScenSmart
One embedded DMA controller for system
DMAC features:
8 channels totally
23 hardware request from peripherals
2 interrupt output
Dual APB slave interface for register configuration, designated as secure and non-secure
Support trustzone technology and programmable secure state for each DMA channel
Secure system
TrustZone based Trusted Execution Environment (TEE) for the following components
Cortex-A35, support security and non-security mode, switch by software
System general DMAC, support some dedicated channels work only in security mode
Secure OTP, only can be accessed by Cortex-A35 in secure mode and secure key reader block
SYSTEM_SRAM, part of space is addressed only in security mode, detailed size is software-programmable together with TZMA (TrustZone memory adapter)
eight secure address space in DDR device, the start address and end address for each address scope is configurable, maximum 4GB secure address are supported
Cipher engine
Support SHA-1, SHA-256/224, SHA-512/384, MD5 with hardware padding
Support HMAC of SHA-1, SHA-256, SHA-512, MD5 with hardware padding
Support AES-128, AES-192, AES-256 encrypt & decrypt cipher
Support DES & TDES cipher
Support AES ECB/CBC/OFB/CFB/CTR/CTS/XTS/CCM/GCM/CBC-MAC/CMAC mode
Support DES/TDES ECB/CBC/OFB/CFB mode
Support up to 4096 bits PKA mathematical operations for RSA/ECC
Support hardware key loader from secure OTP, which is not accessable by other devices, including Cort4ex-A35
Support data scrambling for DDR3/DDR3L/DDR4/LPDDR3/LPDDR4
Support up to 256 bits TRNG Output
Support secure OTP
Support secure boot
Support secure debug
1.2.6 Video CODEC
Video Decoder
Real-time decoding of MPEG-4, H.264, H.265/HEVC, VP8, VC-1
H.264/AVC Base/Main/High@level4.2; up to 1080P@60fps
H.265/HEVC Main10 profile@level4.2; up to 1080P@60fps
VP8, up to 1080P@60fps
MPEG-4, ISO/IEC 14496-2, SP@L0-3, ASP@L0-5, up to 1080P@60fps
VC-1, SP@ML, MP@HL, AP@L0-3, up to 1080P@60fps
MVC is supported based on H.264 or H.265, up to 1080P@60fps
Video Encoder
Support H.264 video encoder at BP/MP/HP@level4.1
Resolution and frame rate are up to 1920×1080@30FPS
1x1080p@30fps or 2x720p@30fps encoding
RK3326-S Datasheet Rev 1.0-ScenSmart
1.2.7 JPEG CODEC
JPEG decoder
Decoder size is from 48×48 to 8176×8176(66.8Mpixels)
Support JPEG ROI (region of image) decode
1.2.8 Graphics Engine
3D Graphics Engine:
Support DirectX 11 FL9_3
Support OpenGL ES 1.1, 2.0, and 3.2
Support Vulkan 1.0
Support OpenCL 2.0 Full Profile
2D Graphics Engine:
Data format
Support input of ARGB/RGB888/RGB565/RGB4444/RGB5551/YUV420/YUV422
Support input of YUV422SP10bit/YUV420SP10bit(YUV-8bits out)
Support output of ARGB/RGB888/RGB565/RGB4444/RGB5551/YUV420/YUV422
Pixel Format conversion, BT.601/BT.709
Dither operation
Max resolution: 8192×8192 source, 4096×4096 destination
Scaling
Down-scaling: Average filter
Up-scaling: Bi-cubic filter(source>2048 would use Bi-linear)
Arbitrary non-integer scaling ratio，from 1/8 to 8
Rotation
0, 90, 180, 270 degree rotation
x-mirror, y-mirror& rotation operation
BitBLT
Block transfer
Color palette/Color fill, support with alpha
Transparency mode (color keying/stencil test, specified value/value range)
Two source BitBLT:
A+B=B only BitBLT, A support rotate&scale when B fixed
A+B=C second source (B) has same attribute with (C) plus rotation function
Alpha Blending
New comprehensive per-pixel alpha(color/alpha channel separately)
Fading
SRC1(R2Y)&&SRC0(YUV)—alpha->DST(YUV)
1.2.9 Video input interface
Interface and video input processor
Support up to 12bit DPI interface (digital parallel input)
Support up MIPI CSI RX interface
Support VIP block(Video Input Processor)
Support ISP block(Image Signal Processor)
Support DPI interface to VIP block
Support DPI interface to ISP block
Support MIPI CSI RX interface to ISP block
Support the following two mode simultaneously
DPI interface with VIP
MIPI CSI RX interface with ISP
DPI Interface
Support 8bit input
Support up to 150MHz input data
RK3326-S Datasheet Rev 1.0-ScenSmart
MIPI CSI RX Interface
Compatible with the MIPI Alliance Interface specification v1.0
Up to 4 data lane, 1.0Gbps maximum data rate per lane
Support MIPI-HS, MIPI-LP mode
VIP
Support YCbCr422 8bit input
Support Raw 8bit/10bit/12bit input
Support CCIR656(PAL/NTSC) input
Support JPEG input
Support YCbCr422/420 output
Support UYVY/VYUY/YUYV/YVYU configurable
Support up to 8192×8192 resolution source
Support picture in picture
Support arbitrary size window crop
ISP
Generic Sensor Interface with programmable polarity for synchronization signals
ITU-R BT 601/656 compliant video interface supporting YCbCr or RGB Bayer data
12 bit camera interface
12 bit resolution per color component internally
YCbCr 4:2:2 processing
Flash light control
Mechanical shutter support
Windowing and frame synchronization
Frame skip support for video (e.g. MPEG-4) encoding
Macro block line, frame end, capture error, data loss interrupts and sync. (h_start,v_start) interrupts
Luminance/chrominance and chrominance blue/red swapping for YUV input signals
Continuous resize support
Semi planar storage format
Color processing (contrast, saturation, brightness, hue, offset, range)
Power management by software controlled clock disabling of currently not needed sub-modules
Four channel Lens shade correction (Vignetting)
Auto focus measurement
White balancing and black level measurement
Auto exposure support by brightness measurement in 5×5 sub windows
Defect pixel cluster correction unit (DPCC) supports on the fly and table based pixel correction
De-noising pre filter (DPF)
Enhanced color interpolation (RGB Bayer demosaicing)
Chromatic aberration correction
Combined edge sensitive Sharpening / Blurring filter (Noise filter)
Color correction matrix (cross talk matrix)
Global Tone Mapping with wide dynamic range unit (WDR)
Image Stabilization support and Video Stabilization Measurement
Flexible Histogram calculation
Digital image effects (Emboss, Sketch, Sepia, B/W (Grayscale), Color Selection,Negative image, sharpening)
Solarize effect through gamma correction
Maximum input resolution of 3264×2448 pixels
Main scaler with pixel-accurate up- and down-scaling to any resolution between 3264×2448 and 32×16 pixel in processing mode
Self scaler with pixel-accurate up- and down-scaling to any resolution between 1920×1080 and 32×16 pixel in processing mode
RK3326-S Datasheet Rev 1.0-ScenSmart
Support of semiplanar NV21 color storage format
Support of image cropping
Support Y12BIT and UV 8BIT path output after GAMMAOUT module
Support RGB output after GAMMAOUT module
Support hurry for latency FIFO
Support Two-in-one RK-Tone-Mapping with wide dynamic range unit (Block/Global WDR)
Support Video Stabilization Measurement (VSM) Programming update to 3264×2448
1.2.10 Display interface
Display interface
Support RGB Parallel Display interface
Support MIPI_DSI interface
Support LVDS interface
Support Parallel Display interface and MIPI_DSI display simultaneously
Support Parallel Display interface and LVDS display simultaneously
RGB Parallel Display interface
Up to 100MHz output data
Up to 24bit output data
MIPI_DSI interface
Compatible with MIPI Alliance Interface specification v1.0
Support 4 data lane, 1.0Gbps maximum data rate per lane
Up to 1080p@60fps display output
Support HS and LP mode
LVDS interface
Compliant with the TIA/EIA-644-A LVDS specification
Compliant with LVTTL IO, support direct RGB data output
Support RGB888 and RGB666 for LVDS interface
Support VESA/JEIDA LVDS data format transfer
Up to 1280×800@60fps
1.2.11 Video Output Processor
Display interface
Parallel RGB LCD Interface: 24-bit(RGB888),18-bit(RGB666), 16-bit(RGB565)
Max output resolution
Up to 1920×1080 with CABC disable
Up to 1280×800 with CABC enable
Display process
Background layer
programmable 24-bit color
Win0 layer
Input format : RGB888, ARGB888, RGB565, YCbCr422, YCbCr420, YCbCr444
1/8 to 8 scaling-down and scaling-up engine
Support virtual display
256 level alpha blending (pre-multiplied alpha support)
Transparency color key
YCbCr2RGB(rec601-mpeg/ rec601-jpeg/rec709)
RGB2YCbCr(BT601/BT709)
Win1 layer
Input format : RGB888, ARGB888, RGB565
Support virtual display
256 level alpha blending (pre-multiplied alpha support)
RK3326-S Datasheet Rev 1.0-ScenSmart
Transparency color key
RGB2YCbCr(BT601/BT709)
Support frame buffer data decompression
HWC layer
Support 8BPP only
Size : 32×32 or 64×64
256 level alpha blending (pre-multiplied alpha support)
RGB2YCbCr(BT601/BT709)
Others
Win0 layer , Win1 layer overlay exchangeable
Support RGB or YUV domain overlay
BCSH(Brightness, Contrast, Saturation, Hue adjustment)
BCSH:YCbCr2RGB(rec601-mpeg/ rec601-jpeg/rec709)
BCSH:RGB2YCbCr(BT601/BT709)
Support Gamma adjust
Support CABC (Content Adaptive Backlight Control)
Support dither down allegro RGB888to666 RGB888to565 & dither down frc(configurable ) RGB888to666
Blank and black display
Standby mode
1.2.12 Audio Interface
I2S0 with 8 channel
Up to 8 channels TX and 8 channels RX path
Audio resolution from 16bits to 32bits
Sample rate up to 192KHz
Provides master and slave work mode, software configurable
Support 3 I2S formats (normal, left-justified, right-justified)
Support 4 PCM formats (early, late1, late2, late3)
I2S and PCM mode cannot be used at the same time
I2S1/I2S2 with 2 channel
Up to 2 channels for TX and 2 channels RX path
Audio resolution from 16bits to 32bits
Sample rate up to 192KHz
Provides master and slave work mode, software configurable
Support 3 I2S formats (normal, left-justified, right-justified)
Support 4 PCM formats (early, late1, late2, late3)
I2S and PCM cannot be used at the same time
PDM
Up to 8 channels
Audio resolution from 16bits to 24bits
Sample rate up to 192KHz
Support PDM master receive mode
TDM
supports up to 8 channels for TX and 8 channels RX path
Audio resolution from 16bits to 32bits
Sample rate up to 192KHz
Provides master and slave work mode, software configurable
Support 3 I2S formats (normal, left-justified, right-justified)
Support 4 PCM formats (early, late1, late2, late3)
1.2.13 Connectivity
SDIO interface
RK3326-S Datasheet Rev 1.0-ScenSmart
Compatible with SDIO3.0 protocol
4bits data bus widths
USB 2.0
Built-in one USB 2.0 OTG interfaces
Compatible with USB 2.0 specification
Supports high-speed(480Mbps), full-speed(12Mbps) and low-speed(1.5Mbps) mode
Provides 16 host mode channels
Support periodic out channel in host mode
SPI interface
Support two SPI Controller
Support serial-master and serial-slave mode, software-configurable
I2C interface
Support three I2C interface(I2C0/I2C1/I2C2)
Support 7bits and 10bits address mode
Software programmable clock frequency
Data on the I2C-bus can be transferred at rates of up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode or up to 1 Mbit/s in Fast-mode Plus.
UART Controller
Support 4 UART interface(UART0/UART1/UART2/ UART5)
Embedded two 64-byte FIFO for TX and RX operation respectively
Support 5bit,6bit,7bit,8bit serial data transmit or receive
Standard asynchronous communication bits such as start, stop and parity
Support different input clock for UART operation to get up to 4Mbps baud rate
Support auto flow control mode for UART0/UART1/ UART5
1.2.14 Others
Multiple group of GPIO
All of GPIOs can be used to generate interrupt to CPU
Support level trigger and edge trigger interrupt
Support configurable polarity of level trigger interrupt
Support configurable rising edge, falling edge and both edge trigger interrupt
Temperature Sensor(TS-ADC)
Up to 50KS/s sampling rate
Support two temperature sensor
-20~120℃ temperature range and 5℃ temperature resolution
Successive Approximation ADC (SARADC)
10-bit resolution
Up to 1MS/s sampling rate
3 single-ended input channels
OTP
Support 8K bit Size, 7K bit for secure application
Support Program/Read/Idle mode
Package Type
TFBGA418L (body: 14mm x 14mm; ball size: 0.3mm; ball pitch: 0.65mm)
Notes:
① DDR3/DDR3L/DDR4/LPDDR3/LPDDR4 are not used simultaneously
RK3326-S Datasheet Rev 1.0
