2. 2
Audio Products for Music Lovers
Provide New User Experience
• 192kHz/24bit High-Resolution audio
• 4 analog or 8 digital microphone inputs
• Class-D full digital amplifier
CPU ARM® Cortex®-M4F x 6
Clock Up to 156MHz
SRAM 1.5MB
Flash Memory 8MB
Digital I/O GPIO, SPI, I2C, UART, PWM
Analog Inputs 6ch (5.0V range)
Audio I/O 8ch Digital MICs or 4ch Analog MICs,
Stereo Speaker
GNSS GPS, GLONASS, BeiDou, Galileo
Others Camera IF, SD CARD, I2S
Low Power Multi Processor
• 28nm FD-SOI*3 technology
• 0.7V core voltage
• ASMP framework*4 for the multi processor
*3 Fully Depleted Silicon-On-Insulator to enable ultra-low-power features
*4 Software Framework to make communication between processors
Positioning Features
• Ultra low power consumption
• GPS, GLONASS, QZSS
Multiple GNSS systems supported
SPRESENSE™
3. 3
SPRESENSE Processor; Inside block of CXD5602
Application Domain
アプリケーションを動作させるブロック
System and IOP Domain
システム管理・電源ドメイン管理ブロック
Sensor Domain
接続されたセンサーを管理するブロック
GNSS Domain
接続されたセンサーを管理するブロック
7. 7
Main CPU
Main CPU
Main CPU
Sub CPU
ソフトウェアの構造(1)
Sub CPU
Sub CPU
Sub CPU
Sub CPU
Main CPU
NuttX
Supervisor
Sub CPU
Worker
Spresense SDKのマルチコア構造(V1.3.0時点)
Spresense Arduino Library のマルチコア構造(V1.3.0時点)
Main CPU
NuttX
Sketch
Multicore
MP Library
Sub CPU
NuttX
Sketch
5CPU
ASMP
Framework
Multicore
MP Library
NuttX
Sketch
Multicore
MP Library