NXP Semiconductors MPC8323EVRADDCA

Overview

MPC8323EVRADDCA from NXP Semiconductors (formerly Freescale) is a PowerQUICC II Pro integrated communications processor featuring an e300c2 Power Architecture core (16 KB I-cache, 16 KB D-cache, dual integer units, no FPU), QUICC Engine block with five UCCs, DDR1/DDR2 memory controller (32-bit, up to 266 MHz), PCI 2.3 interface (32-bit, 66 MHz), and SEC 2.2 security engine. It targets ADSL SOHO gateways, residential routers, and industrial control systems requiring integrated packet processing and protocol offload.

For engineers reviewing the MPC8323EVRADDCA datasheet, MPC8323EVRADDCA pinout, MPC8323EVRADDCA application, or MPC8323EVRADDCA equivalent, key selection criteria include e300c2 core performance, QUICC Engine protocol flexibility (ATM SAR up to OC-3, 10/100 Ethernet ×3, HDLC ×64), DDR1/DDR2 memory support, PCI host/agent mode capability, and hardware-accelerated crypto (DES/3DES/AES/SHA-1/MD5).

Technical Context

The MPC8323EVRADDCA integrates a superscalar e300c2 core operating at up to 333 MHz with MMU support but no FPU, coupled to a dedicated QUICC Engine block containing a 32-bit RISC controller, serial DMA, and five programmable UCCs for concurrent protocol handling. Its DDR1/DDR2 controller supports 32-bit data width at 266 MHz with 1.8 V or 2.5 V I/O compatibility and auto-refresh.

PCI operation is compliant with Revision 2.3, supporting both host and agent modes at 32-bit/66 MHz with 3.3 V signaling only. The security engine (SEC 2.2) implements one crypto-channel with dedicated execution units for DES/3DES, AES, and SHA-1/MD5, enabling offload of IPSec and IEEE 802.11i cryptographic operations from the main CPU.

Key Specifications

Pinout & Package

The MPC8323EVRADDCA is housed in a 672-pin plastic ball grid array (PBGA) package measuring 35 mm × 35 mm with 1.0 mm ball pitch. Pin assignments are defined per the official Freescale MPC8323E Hardware Specifications document (Rev. 4, Section 21).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated communications processor applications.

Compared with MPC8321EVRADDCA, MPC8323EVRADDCA adds UTOPIA and OC-3 ATM support for legacy telecom infrastructure; compared with MPC8323ZQAMMBA, it uses standard thermal pad layout suitable for general-purpose PCBs without specialized heatsinking.

Availability

MPC8323EVRADDCA is available at Aetrix Electronics and suitable for ADSL gateways, industrial routers, test equipment, and cable modems requiring stable component supply across extended product lifecycles.

Supply support for MPC8323EVRADDCA 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 applications, with roots in Freescale's embedded processing heritage.

The MPC8323EVRADDCA belongs to the PowerQUICC II Pro family, designed specifically for cost-sensitive, highly integrated communications processors in broadband access and industrial networking equipment where protocol flexibility and hardware offload are critical.

FAQ

What is the maximum DDR2 data rate supported by the MPC8323EVRADDCA?

The MPC8323EVRADDCA DDR1/DDR2 memory controller supports a maximum data rate of 266 MHz, corresponding to DDR2-533 operation. This is achieved with a 32-bit interface and 1.8 V I/O voltage, enabling peak bandwidth of 1.7 GB/s. The controller supports two ×16-bit DDR2 devices and up to 16 open pages simultaneously, as confirmed in Section 1.4 of the MPC8323E Hardware Specifications Rev. 4.

Does the MPC8323EVRADDCA support PCIe or only PCI 2.3?

The MPC8323EVRADDCA supports only PCI Specification Revision 2.3 - not PCIe. Its PCI interface is a 32-bit, 66 MHz, 3.3 V-only bus capable of host or agent operation. There is no native PCIe transceiver or link training logic in the MPC8323EVRADDCA silicon; PCIe functionality would require an external bridge chip. This limitation is explicitly stated in Section 1.5 of the official hardware specifications.

Can the MPC8323EVRADDCA execute floating-point operations?

No, the MPC8323EVRADDCA's e300c2 core does not include a floating-point unit (FPU). As documented in Section 1 Overview of the MPC8323E Hardware Specifications Rev. 4, the e300c2 core features dual integer units and MMUs but explicitly omits FPU hardware. Floating-point calculations must be performed in software using integer arithmetic or external coprocessors.

What is the purpose of the UTOPIA Level 2 interface on the MPC8323EVRADDCA?

The UTOPIA Level 2 interface on the MPC8323EVRADDCA enables direct connection to ATM physical layer devices supporting multi-PHY configurations, specifically up to 31 PHY addresses. It is used for OC-3 (155 Mbps) ATM SAR termination and is exclusive to the MPC8323E and MPC8323 variants - not present in MPC8321E. This interface reduces external component count in DSLAM and ATM edge router designs.

How many Ethernet interfaces can the MPC8323EVRADDCA support simultaneously?

The MPC8323EVRADDCA QUICC Engine supports up to three independent 10/100 Mbps Ethernet interfaces using MII or RMII signaling, as confirmed in Section 1.1.2 and Figure 1 of the hardware specifications. Each UCC can be individually configured for Ethernet MAC functionality, allowing concurrent operation of multiple ports without shared resource contention.