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NXP Semiconductors LS1043AXN7KQB
- Part No.:
- LS1043AXN7KQB
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- -
- Datasheet:
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LS1043AXN7KQB.pdf
- Description:
- LS1043 - QORIQ, 4XCPU 64-BIT ARM
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Product details
Overview
LS1043AXN7KQB from NXP Semiconductors is a quad-core ARM Cortex-A53 communications processor designed for network edge and industrial gateway applications. It integrates Data Path Acceleration Architecture (DPAA), dual 10-Gbps Ethernet controllers, hardware IPsec/SSL offload, and supports >50K concurrent connections. It targets secure SD-WAN, enterprise firewalls, and IoT concentrators requiring high-throughput packet processing with low power.
For engineers reviewing the LS1043AXN7KQB datasheet, LS1043AXN7KQB pinout, LS1043AXN7KQB application, or LS1043AXN7KQB equivalent, key selection criteria include DPAA firmware integration, RCW configuration flexibility, Linux BSP support for kernel 4.1.35, and verified OpenWrt Chaos Calmer compatibility on RDB/RGW reference platforms.
Technical Context
The LS1043AXN7KQB implements four ARM Cortex-A53 cores at up to 1.7 GHz, paired with a dedicated hardware-accelerated data path (DPAA) featuring FMan v3, QMan, and BMan. It includes integrated SerDes lanes supporting PCIe Gen2, SATA 3.0, and dual 10G/1G Ethernet via SGMII/XFI interfaces.
Its boot architecture relies on Reset Configuration Word (RCW) programming for clock, memory, and I/O initialization, with U-Boot v2016.09 providing drivers for QSPI, PCIe, USB 3.0/2.0, and DPAA Ethernet. Linux BSP v4.1.35 delivers full support for DPAA FMAN, CMM/FCI/CDX control, and JFFS2/UBIFS filesystems on NOR/NAND flash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Quad-core ARM Cortex-A53 @ up to 1.7 GHz - enables real-time Linux execution with deterministic latency for control-plane tasks. |
| DPAA Engine | FMan v3 + QMan + BMan - offloads packet classification, queuing, and buffer management from CPU, sustaining >50K concurrent connections. |
| Ethernet Interfaces | Dual 10-Gbps Ethernet (XFI/SGMII) + six 1-Gbps Ethernet (RGMII) - supports multi-port routing, switching, and firewalling without external PHYs. |
| Crypto Acceleration | Hardware IPsec (IPv4/IPv6) and OpenSSL crypto offload - reduces CPU load by >70% during encrypted tunnel processing. |
| Memory Interface | DDR4-2400 controller (dual-channel, 64-bit) - delivers 38.4 GB/s bandwidth for high-speed packet buffering and table lookups. |
| Boot Source | QSPI NOR, NAND, SD/MMC, PCIe - enables flexible field-upgrade paths and redundant firmware storage. |
| RCW Support | Configurable RCW images (e.g., rcw_1600_gic4k.bin) - defines SerDes lane mapping, clock tree, and I/O voltage settings at power-on reset. |
Pinout & Package
LS1043AXN7KQB is housed in a 23x23 mm, 621-pin FC-BGA package (RoHS-compliant, Pb-free). Pin assignment follows NXP's LS1043A Reference Design Board (RDB) layout, with dedicated ball groups for DDR4, SerDes, Ethernet PHY interfaces, and power delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A10 | DDR4 DQ[0:63] | 64-bit data bus for dual-channel DDR4 memory; requires matched trace lengths and on-die termination calibration. |
| J1–J5 | SerDes Lane 0 (XFI) | 10.3125 Gbps differential pair for 10GbE XFI interface; routed as controlled-impedance 100Ω differential microstrip. |
| M1–M4 | SGMII Clock & Data | 2.5 Gbps SGMII links for 1GbE PHY connectivity; each pair supports auto-negotiation and IEEE 802.3 standards. |
| T1–T3 | RCW Strap Pins | Hardwired to VDD or GND to select default RCW configuration (e.g., rcw_1600_gic4k.bin); determines boot source and SerDes mode. |
| Y1–Y5 | VDD_DDR / VDD_SOC | Multi-rail power domains: 1.2V DDR4, 0.85V core, 1.8V I/O - require independent low-noise regulation and sequencing per NXP AN5097. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DPAA Firmware | Firmware (fsl_fman_ucode_r2.bin) embedded in Linux kernel image (.itb), eliminating separate flash programming and reducing boot time by ~300 ms. |
| OpenWrt ASK Support | Pre-integrated Chaos Calmer 15.05 build with DPAA-aware packages (cmm, fci, dpa_app) and validated drivers for ath9k/Quantena WiFi modules. |
| Secure Boot Chain | ROM-based boot ROM validates RCW and PBI signatures before loading U-Boot, enforcing cryptographic integrity from power-on to OS launch. |
| Flexible Flash Layout | Supports JFFS2 (NOR), UBIFS (NAND/QSPI), and RAM-based rootfs - enables field-upgradable firmware with wear-leveling and atomic update semantics. |
| U-Boot v2016.09 Integration | Includes production-ready drivers for PCIe, USB 3.0, QSPI, and DPAA Ethernet - reduces bring-up time for custom carrier boards by >40% versus bare-metal development. |
Applications
| SD-WAN Edge Appliance | Industrial IoT Gateway |
|---|---|
Use Scenario: Deployed at branch offices to aggregate broadband links, apply policy-based routing, and terminate IPsec tunnels to cloud hubs. IC Role / Device Role / Timing Role: LS1043AXN7KQB serves as the control-and-data-plane processor, executing OpenWrt routing stack while DPAA handles line-rate packet forwarding and encryption. Use Value: Hardware IPsec offload sustains 2.1 Gbps encrypted throughput; >50K connection tracking enables large-scale site-to-site VPN deployment without session exhaustion. | Use Scenario: Installed in factory automation cabinets to collect Modbus/TCP, CANopen, and MQTT data from PLCs and sensors, then forward securely to cloud SCADA. IC Role / Device Role / Timing Role: LS1043AXN7KQB runs real-time Linux for protocol translation and acts as a hardened TLS gateway with hardware crypto acceleration. Use Value: Dual 10GbE ports connect upstream to enterprise networks; integrated QSPI boot and NAND rootfs ensure reliable over-the-air updates in harsh environments. |
| Enterprise Firewall | 5G Small Cell Backhaul |
Use Scenario: Embedded in compact 1U appliances performing stateful inspection, NAT, QoS shaping, and intrusion prevention for midsize business LANs. IC Role / Device Role / Timing Role: LS1043AXN7KQB executes iptables/nftables rules in kernel space while DPAA enforces egress QoS and VLAN tagging at wire speed. Use Value: Egress QoS configuration supports eight priority queues per port; hardware statistics collection enables real-time traffic monitoring without CPU polling overhead. | Use Scenario: Mounted in outdoor small cell units to backhaul fronthaul (eCPRI) and midhaul (IP/Ethernet) traffic between radios and centralized BBU. IC Role / Device Role / Timing Role: LS1043AXN7KQB processes timing-sensitive eCPRI encapsulation/decapsulation and provides precise PTPv2 timestamping via DPAA's hardware timestamp engine. Use Value: Sub-microsecond timestamp accuracy meets 3GPP Release 15 fronthaul synchronization requirements; PCIe Gen2 interface connects to FPGA-based radio frontends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar communications processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LS1046AXN7KQB | Adds two additional Cortex-A72 cores (total 6 cores), higher max frequency (1.8 GHz), and enhanced DPAA2 with larger frame queue depth. | Better suited for compute-intensive NFV workloads like vCPE and DPI; consumes ~25% more power under full load. | Select LS1046AXN7KQB when >8 Gbps encrypted throughput or virtualized service chaining is required; LS1043AXN7KQB remains optimal for cost-sensitive 2–5 Gbps edge gateways. |
| BCM68650 | ARM-based SoC with integrated DSL/PON MACs, no DPAA, and proprietary packet engine; lower memory bandwidth (25.6 GB/s DDR3). | Targeted at residential gateways with DSL/FTTH; lacks industrial-grade security features and long-term Linux BSP support. | Choose BCM68650 only for telco-specified DSL deployments; LS1043AXN7KQB offers superior open-source toolchain maturity and NXP's 10-year industrial product longevity guarantee. |
Compared with LS1046AXN7KQB and BCM68650, the LS1043AXN7KQB delivers the best balance of DPAA-accelerated packet throughput, power efficiency (12 W typical), and OpenWrt/Linux ecosystem maturity for industrial and enterprise edge routing - making it the preferred choice where deterministic real-time performance and long-term software maintenance are critical.
Availability
LS1043AXN7KQB is available at Aetrix Electronics and suitable for SD-WAN edge appliances, industrial IoT gateways, and enterprise firewalls requiring stable component supply across multi-year production cycles.
Supply support for LS1043AXN7KQB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with annual R&D investment exceeding $1.5 billion.
The LS1043A series belongs to NXP's Layerscape family of communications processors, engineered specifically for intelligent edge networking - emphasizing hardware-accelerated data path offload, real-time Linux determinism, and long-lifecycle support for infrastructure equipment.
FAQ
What is the maximum supported DDR4 speed for LS1043AXN7KQB?
The LS1043AXN7KQB supports DDR4-2400 (1200 MHz) across two 32-bit channels, delivering 38.4 GB/s peak bandwidth. This is validated with JEDEC-compliant DDR4-2400 modules using the RCW configuration rcw_1600_gic4k.bin and requires strict PCB layout adherence to NXP's AN5097 layout guidelines for signal integrity and power delivery.
Does LS1043AXN7KQB require external DPAA firmware flashing?
No. Starting with ASK 7.0.0, the DPAA firmware (fsl_fman_ucode_r2.bin) is integrated directly into the Linux kernel image (.itb), so LS1043AXN7KQB automatically loads it at boot without requiring separate flash programming - simplifying manufacturing and field updates.
Which OpenWrt version is officially supported on LS1043AXN7KQB?
LS1043AXN7KQB is officially supported in the OpenWrt Chaos Calmer 15.05 branch, built with GCC 4.8-linaro arm toolchain and glibc 2.19. The ASK 7.0.0 release includes validated packages such as dnsmasq 2.73, ip6tables 1.4.21, and dpa_app - all tested on LS1043A-RDB and LS1043A-RGW hardware.
Can LS1043AXN7KQB boot from NAND flash?
Yes. LS1043AXN7KQB supports NAND boot on LS1043A-RGW platforms using U-Boot v2016.09 with NAND driver support. The ASK 7.0.0 release includes pre-built ubi-nand-openwrt-ls1043a_7.0.0-ls1043a-rgw images and validated flashing procedures via TFTP and NAND write commands.
What RCW configuration is used by default on LS1043AXN7KQB RDB platforms?
The default RCW for LS1043AXN7KQB on RDB platforms is rcw_1600_gic4k.bin, which configures SerDes lanes for dual 10GbE (XFI), six 1GbE (RGMII), PCIe Gen2 x2, and SATA 3.0 - matching the LS1043A-RDB hardware layout and enabling full I/O utilization out-of-box.
LS1043AXN7KQB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Core Processor:
- -
- Number of Cores/Bus Width:
- -
- Speed:
- -
- Co-Processors/DSP:
- -
- RAM Controllers:
- -
- Graphics Acceleration:
- -
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Additional Interfaces:
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LS1043AXN7KQB FAQ
1.How can I place an order for LS1043AXN7KQB through Aetrix?
Please submit a Request for Quotation (RFQ) for LS1043AXN7KQB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LS1043AXN7KQB reliable?
The price and inventory of LS1043AXN7KQB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LS1043AXN7KQB is usually 5 days.
3.What payment methods are accepted for LS1043AXN7KQB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LS1043AXN7KQB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LS1043AXN7KQB?
LS1043AXN7KQB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LS1043AXN7KQB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LS1043AXN7KQB?
For technical support, including LS1043AXN7KQB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LS1043AXN7KQB requirements.
6.How does Aetrix verify that LS1043AXN7KQB is sourced from the original manufacturer or authorized distributors?
All LS1043AXN7KQB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LS1043AXN7KQB meets industry standards.
7.What is the process for return or replacement of LS1043AXN7KQB?
All LS1043AXN7KQB units undergo pre-shipment inspection (PSI). If there is an issue with LS1043AXN7KQB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LS1043AXN7KQB part is unused and in its original packaging.
Return procedure for LS1043AXN7KQB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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