NXP Semiconductors MSC8157ETAG1000A

Overview

MSC8157ETAG1000A from Freescale Semiconductor is a six-core StarCore SC3850 DSP processor with integrated Security Engine (SEC), MAPLE-B2 baseband accelerator, QUICC Engine subsystem, and DDR3 controller - operating at 1 GHz per core, featuring 3072 KB M3 memory, 512 KB configurable L2 cache per core, and 96 KB boot ROM. It targets wireless infrastructure baseband processing in LTE/3GPP macrocell and small-cell radio units.

For engineers reviewing the MSC8157ETAG1000A datasheet, MSC8157ETAG1000A pinout, MSC8157ETAG1000A application, or MSC8157ETAG1000A equivalent, key selection considerations include its 783-ball FC-PBGA package, dual RGMII/SGMII Ethernet interfaces, six-lane CPRI v4.1 support up to 6.144 Gbaud, Serial RapidIO x4 at 5 Gbaud, and hardware-accelerated Turbo/Viterbi/FFT for real-time PHY-layer processing.

Technical Context

The MSC8157ETAG1000A implements a chip-level arbitration and switching system (CLASS) enabling non-blocking interconnect between six DSP cores, MAPLE-B2, SEC, DDR controller, and M3 memory. Its memory hierarchy includes unified 512 KB L2 cache per core (configurable as M2 memory), 3072 KB shared 128-bit-wide M3 SRAM, and dedicated 96 KB boot ROM.

It integrates six independent PLLs - three global, two Serial RapidIO, and one DDR - supporting multi-domain clocking; the high-speed serial interface combines a 10-lane SerDes PHY delivering two Serial RapidIO x1/x2/x4 links, one PCIe x1/x2/x4 controller, six CPRI lanes, and two SGMII ports via multiplexing.

Key Specifications

Pinout & Package

Package: FC-PBGA–783, 29 mm × 29 mm, 45 nm SOI CMOS technology. Thermal and mechanical details per Freescale Document Number MSC8157E Rev. 2, Figure 32.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-core DSP with baseband acceleration applications.

Compared with TMS320C6678 and BCM68500, the MSC8157ETAG1000A delivers purpose-built wireless PHY acceleration, integrated CPRI/Serial RapidIO fronthaul, and hardware-enforced security - reducing BOM count and latency versus hybrid FPGA+DSP solutions.

Availability

MSC8157ETAG1000A is available at Aetrix Electronics and suitable for wireless infrastructure, fronthaul gateway, and secure backhaul applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MSC8157ETAG1000A 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

Freescale Semiconductor (now part of NXP Semiconductors since 2015) is a fabless semiconductor company specializing in embedded processing, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MSC8157E product line was designed specifically for high-performance wireless infrastructure applications - integrating DSP, baseband acceleration, security, and fronthaul I/O into a single die to replace multi-chip baseband solutions in LTE macrocells and small cells.

FAQ

What is the maximum DDR3 data rate supported by the MSC8157ETAG1000A?

The MSC8157ETAG1000A supports DDR3-1333, with a 667 MHz clock yielding a 1333 MT/s data rate on its 64/32-bit DDR interface. This is confirmed in Section 2.6 AC Timing Characteristics of the MSC8157E datasheet Rev. 2, which specifies tAC, tDQSQ, and tDQSCK timing parameters aligned to JEDEC DDR3-1333 standards. The MSC8157ETAG1000A achieves this using on-die termination and write-leveling calibration logic.

Does the MSC8157ETAG1000A support CPRI version 4.1?

Yes, the MSC8157ETAG1000A explicitly supports CPRI v4.1 at up to 6.144 Gbaud per lane across its six configurable SerDes lanes. This is documented in the "Second generation Multi-Accelerator Platform Engine for Baseband (MAPLE-B2)" section of the MSC8157E datasheet Rev. 2, and verified in electrical specifications for SD_A_TX/SD_A_RX through SD_F_TX/SD_F_RX pins under AC Timing Characteristics.

How many independent SerDes lanes does the MSC8157ETAG1000A provide?

The MSC8157ETAG1000A provides ten independent SerDes lanes, organized as six CPRI-capable lanes (A–F), two SGMII lanes, and two additional lanes usable for Serial RapidIO or PCIe. As stated in the high-speed serial interface description, the 10-lane SerDes PHY is multiplexed to support multiple protocols - confirmed in Figure 1 (Block Diagram) and Section 1.2 Signal Lists of the MSC8157E datasheet Rev. 2.

What is the function of the CLASS subsystem in the MSC8157ETAG1000A?

The CLASS (Chip-level Arbitration and Switching System) in the MSC8157ETAG1000A is a non-blocking interconnect fabric that arbitrates and routes transactions between the six SC3850 DSP cores, MAPLE-B2, Security Engine, DDR controller, M3 memory, and other initiators/targets. It ensures deterministic, low-latency communication essential for real-time baseband scheduling - detailed in the "Chip-level arbitration and switching system (CLASS)" bullet of the MSC8157E datasheet Rev. 2.

Is the MSC8157ETAG1000A pin-compatible with other members of the MSC8157E family?

No, the MSC8157ETAG1000A is not guaranteed pin-compatible with other MSC8157E variants such as MSC8157ETAG800B or MSC8157ETAG1200A. While all share the same FC-PBGA–783 package, the datasheet does not declare pin-to-pin compatibility across speed grades or temperature variants; signal assignments and power rail requirements (e.g., GVDD vs. NVDD loading) differ per variant - confirmed in Table 1 Signal List and Section 4 Ordering Information of MSC8157E Rev. 2.