MCU Microcontroller Arm.Cortex-A35 Microprocessor Chip MA35D16F887C
The NuMicro MA35D1 series is a heterogeneous multi-core microprocessor targeted to high-end edge
IIoT gateway. It is based on dual 64-bit Arm Cortex-A35 cores with speed up to 800 MHz, and one 180
MHz Arm Cortex-M4 core. Based on the high-performance cores, the MA35D1 series facilitates the tiny
AI/ML for edge computing.
The MA35D1 series has a built-in 128 KB IBR (Internal Boot ROM) and supports secure booting from
USB, SD/eMMC, NAND, and SPI Flash (SPI NOR/SPI NAND) modes. The MA35D1 series supports
16-bit DDR2 and DDR3/DDR3L SDRAM. For an easy system design and manufacture, the MA35D1
series also offers LQFP and BGA packages stacked with the DDR2/DDR3L SDRAM and density up to
512 MB to significantly reduce PCB layer, size and electromagnetic interference (EMI).
The MA35D1 series is a trusted system for IoT products' security requirements. It includes several
advanced security mechanisms such as Nuvoton Trusted Secure Island (TSI), an isolated secure
hardware unit, TrustZone®, secure boot, tamper-detection, built-in cryptographic accelerators with AES,
SHA, ECC, RSA, SM2/3/4, and a TRNG, as well as Key Store and OTP memory. All the security
operations are performed in the TSI to protect sensitive and high-value data. The features also satisfy
customers in IEC 62443 certification requirements.
For high-end edge IIoT gateway requirements, the MA35D1 series integrates PDMA to increase the
system performance. The PDMA can access system memory directly without the intervention of the
CPU. Also, the MA35D1 series provides multiple advanced and high-speed connection interfaces, such
as Gigabit Ethernet, SDIO3.0, USB 2.0 HS, and CAN FD, for edge gateway and new energy
applications.
For HMI applications, the MA35D1 series provides a LCD display controller with the resolution up to
1920x1080 at 60 FPS, a 2D graphic engine, a JPEG and a H.264 decoder integrated for better graphical
HMI effects and video playback.
The MA35D1 series has highly integrated functions and it is grouped into five sub-systems, Core sub
system, Memory sub-system, Security sub-system, Display, Video sub-system, Connectivity, and I/O
sub-system.
1.1
Core Sub-system
The MA35D1 series is equipped with dual 64/32-bit Arm Cortex-A35 cores for Armv8-A architecture
running up to 800 MHz for high-performance processing data in edge, 32/32 KB I/D L1 cache for each
core, and a 512 KB shared L2 cache with Snoop Control Unit (SCU)-L2 cache protection, with Arm
TrustZone, Arm Cryptographic Extension Arm NEON™ SIMD Engine and FPU (Floating Point Unit)
supported.
The real-time processor Arm Cortex-M4 core runs up to 180 MHz for industrial control in real-time. It
includes 16/16 KB I/D cache, FPU (Floating Point Unit), MPU (Memory Protect Unit), and a dedicated
128 KB SRAM for program code execution and data access. Besides, it can extend access to the
system SDRAM up to 3.875 MB.
In addition to giving data processing and real-time control in edge, the computing power also facilities
the basic AI/ML applications.
The MA35D1 series also provides the WWDT (Window Watchdog Timer), RTC (Real Time Clock),
hardware semaphore and Wormhole for Cortex-A35 and Cortex-M4 communication, and most
peripherals can be allocated to either the Cortex-A35 or Cortex-M4 cores to meet wide application
requirements.
1.2
Memory Sub-system
The MA35D1 series has a built-in 128 KB mask ROM and supports secure booting from USB,
SD/eMMC, NAND, and SPI Flash (SPI NOR/SPI NAND).
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MA35D1 SERIES DATASHEET
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Rev 1.07
MA35D1 Series
There are 384 (128 + 256) KB on-chip SRAM and 16-bit DDR2/DDR3/DDR3L SDRAM interface running
up to 533 MHz, and up to 2 GB of SDRAM.
The MA35D1 series also supports stacking a DDR2/DDR3L SDRAM device into LQFP and BGA
package to ease PCB design with lowered EMI and reduced BOM cost.
1.3
Security Sub-system
The MA35D1 series is a trusted system for IoT products. There are advanced security features to
prevent sensitive and high-value data from being eavesdropped on and tampered. MA35D1 series can
easily establish encrypted communications, secure data storage, and a secure environment for
applications.
Execution Security
The Cortex-A35 is an ARMv8-A architecture with the TrustZone technology, preventing non-secure
programs from accessing secure hardware functions to provide a secure environment for applications.
The MA35D1 series also supports secure boot to ensure system image's authenticity and integrity, and
avoid executing the malware or unauthorized software implanted on the system.
MA35D1 SERIES DATASHEET
The MA35D1 series is equipped with a TSI (Trusted Secure Island), which is an isolated secure
hardware unit and its operation is not affected the MA35D1 system. All the cryptographic accelerators,
Key Store, and OTP memory are built in the TSI, which perform all the security operations, including
secure boot and tamper pins detection. The TSI interacts with the MA35D1 through a secure channel
that effectively reduces the interfaces of malware attacks and preventing confidential data from being
eavesdropped on and tampered with. The TSI also offers RTIC (Run-Time Integrity Checker)
mechanism. It periodically checks the integrity of code or data sections in the background without
interfering with the MA35D1's normal operation, preventing a Trojan system from being inserted or
tampered with.
Communication Security
The MA35D1 series is equipped with several hardware cryptographic accelerators such as AES, SHA,
ECC, RSA, SM2/3/4, and TRNG (True Random Number Generator), which facilitates exchanging secret
keys, data encryption, and decryption between communications, and reduces the processor load.
Chip-level Storage Security
The MA35D1 series provides Key Store for key management and write-protected OTP (One-Time
Programmable) memory for secret key or sensitive data storage to prevent tamper. Key Store and OTP
memory can be accessed by the cryptographic engines, retrieving secret keys without the need of CPU
access to reduce further risk of leakage of the sensitive cryptographic keys.
Physical Security
There is one pair of dynamic loop tamper pins or two individual tamper pins for tamper detection. Binding
the tamper pins with PCB, the data and keys are destroyed if the system is threatened.
1.4
Display and Video Sub-system
For HMI applications, the MA35D1 series supports TFT-LCD display in a parallel RGB interface, the
resolution up to 1920x1080 at 60 fps, and the display controller also supports the hardware cursor and
OSD (On Screen Display). It also integrates a 2D graphic engine for graphics acceleration, such as
BitBlt, rotation, multi-source alpha blending, and color format converting. A hardware JPEG decoder
can decode compressed image size from 48x48 to 16368x16368. Another hardware H.264 decoder
can decode compressed video stream, which supports resolution up to 1920x1080 at 45 FPS.
There are two sets of camera inputs supporting the video and image input for the image and video
capture with machine learning applications.
Dec. 25, 2023
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MA35D1 Series
1.5
Connectivity and I/O Sub-system
For high-end industrial control and edge gateway requirements, the MA35D1 series integrates four sets
of PDMA to increase the system performance for peripherals to direct access the system memory
without the intervention of the CPU. Also, it provides multiple advanced and high-speed connection
interfaces, such as Gigabit Ethernet, SDIO3.0, USB 2.0 HS, and CAN FD.
The MA35D1 series is suitable for a wide range of applications such as:
⚫ Edge Gateway – Smart Factory – Smart City – Smart Building – Smart Retail – Smart Agriculture
⚫ Tiny AI (Artificial Intelligent) / ML (Machine Learning) – Audio Sensing – Image Classification – Intelligent Data Security
⚫ HMI (Human Machine Interface) & Industrial Control – Factory Automation – Industrial HMI – Smart Home – Smart Appliance
⚫ New Energy Applications – Smart Grid – Smart Power – Energy System
.
Packaging and transportation instructions
- According to the standard export packaging.
Customers can choose from cartons, wooden cases and wooden pallets according to their own requirements.
Q&A
1. How to obtain the price?
We usually quote within 24 hours after receiving your inquiry (except weekends and holidays). If you are in urgent need of a price, please send us an email or contact us in any other way so that we can provide you with a quotation.
2. What is your delivery time?
This depends on the quantity of the order and the season in which you place the order. Usually, we can ship the goods within 7 to 15 days (for small batches), and for large batches, it takes about 30 days.
3. What are your payment terms?
Factory price, 30% deposit, 70%T/T payment before shipment.
4. What is the mode of transportation?
It can be transported by sea, air or express delivery (EMS, UPS, DHL, TNT, FEDEX, etc.). Please confirm with us before placing an order.
5. How do you help our business establish a long-term and good relationship?
We maintain good quality and competitive prices to ensure that our customers benefit.
2. We respect every customer as our friend. We do business with them sincerely and make friends with them, no matter where they come from.
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