NXP Semiconductors MPC862PVR100B

Overview

MPC862PVR100B from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ family integrated communications processor combining a 32-bit MPC8xx PowerPC core, System Integration Unit (SIU), and Communications Processor Module (CPM). It operates at up to 100 MHz, features 16 KB instruction cache and 8 KB data cache, supports dual 10/100 Mbps Ethernet via MII, and integrates UTOPIA Level 2 for ATM networking in DSL and broadband access systems.

For engineers reviewing the MPC862PVR100B datasheet, MPC862PVR100B pinout, MPC862PVR100B application, or MPC862PVR100B equivalent, key selection criteria include its 357-pin PBGA package, 3.3 V core/I/O operation with 5 V-tolerant inputs, enhanced SAR (ESAR) mode for OAM/PM support, and full-duplex UTOPIA master/slave capability - all critical for carrier-grade DSLAM and multi-service access node designs.

Technical Context

The MPC862PVR100B implements a single-issue, 32-bit PowerPC architecture core with 32 GPRs, branch prediction, and physically addressed caches (16 KB instruction, 8 KB data, four-way set-associative). Its CPM includes 8 KB dual-port RAM, 16 SDMA channels, and RISC-based serial controllers supporting HDLC, UART, IrDA, and BISYNC protocols.

It integrates a Fast Ethernet Controller (FEC) enabling simultaneous MII and UTOPIA operation, an SIU with clock synthesizer, IEEE 1149.1 JTAG debug interface, and a memory controller supporting DRAM, SDRAM, SRAM, and flash across eight banks with programmable wait states and dynamic bus sizing (8/16/32-bit).

Key Specifications

Pinout & Package

Package: 357-pin plastic ball grid array (PBGA), 27 mm × 27 mm, 1.27 mm pitch, exposed thermal pad - requires controlled solder reflow profile and thermal via array to internal ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC862PVR80B, the MPC862PVR100B delivers 25% higher deterministic instruction throughput and tighter timing margins for high-density ATM cell processing; compared with MPC855TVR100B, it retains full DSLAM feature parity including ESAR, TSA, and quad-SCC concurrency - making it irreplaceable for carrier-grade multi-service aggregation.

Availability

MPC862PVR100B is available at Aetrix Electronics and suitable for DSLAM manufacturing, broadband access equipment development, and industrial protocol gateway production requiring stable component supply across extended product lifecycles.

Supply support for MPC862PVR100B 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 deep heritage in Power Architecture® and communications processors.

The MPC862PVR100B belongs to the PowerQUICC™ family - designed specifically for carrier-class broadband access infrastructure, integrating networking acceleration, real-time control, and multi-protocol support in a single SoC for DSL, ATM, and converged access systems.

FAQ

What is the maximum operating frequency of the MPC862PVR100B and how does it affect bus timing?

The MPC862PVR100B operates at a maximum CPU frequency of 100 MHz in 2:1 mode, requiring a 50 MHz bus clock. This configuration imposes strict timing constraints: CLKOUT rise/fall times must be ≤4 ns, and address/data setup/hold margins shrink to 3.8 ns minimum at 66 MHz bus speed. Designers must use controlled-impedance PCB traces ≤6 inches long and implement aggressive decoupling to meet AC timing specifications under worst-case voltage/temperature conditions. The MPC862PVR100B datasheet specifies these limits in Table 7 for 33–66 MHz bus operation.

Does the MPC862PVR100B support both UTOPIA Level 1 and Level 2, and what is the practical impact?

Yes, the MPC862PVR100B supports both UTOPIA Level 1 and Level 2 interfaces. Level 2 adds mandatory FIFO buffering, split-bus full-duplex operation (master/slave), and enhanced flow control - reducing total cell transmission time by up to 40% versus Level 1 in ATM DSL backhaul. This directly improves aggregate throughput in multi-phy DSLAM configurations. The MPC862PVR100B implements Level 2 compliance per ANSI T1.601 and ITU-T I.432, with hardware support for statistical cell counters and parameter RAM relocation without microcode intervention.

How many serial communication controllers (SCCs) does the MPC862PVR100B integrate, and what protocols do they support?

The MPC862PVR100B integrates four serial communication controllers (SCCs), each supporting HDLC, SDLC, PPP, AppleTalk, UART, IrDA, BISYNC, and transparent bit-stream modes. SCC4 optionally provides UTOPIA port functionality. These SCCs operate concurrently under CPM control with dedicated SDMA channels, enabling simultaneous DSL framing, management channel telemetry, and legacy modem support. The MPC862PVR100B's four SCCs are essential for multi-service access nodes requiring independent protocol stacks on distinct physical links.

What power management modes are available on the MPC862PVR100B, and which retain real-time clock functionality?

The MPC862PVR100B offers five power modes: Full On, Doze, Sleep, Deep Sleep, and Power Down. In all modes except Full On, the real-time clock (RTC), periodic interrupt timer (PIT), time base, and decrementer remain active - enabling wake-on-timer events even when the core and CPM are disabled. The Power Down mode retains only RTC, PIT, time base, decrementer, and PLL, drawing <100 µA. This capability is critical for always-on DSL equipment requiring low-power maintenance functions without external supervision. The MPC862PVR100B's SIU implements these transitions via software-controlled register writes.

Is the MPC862PVR100B pin-compatible with other members of the MPC862/857T/857DSL family, and what are the key compatibility constraints?

The MPC862PVR100B shares the same 357-pin PBGA package and pinout with MPC862PVR80B and MPC862PVR66B, enabling drop-in frequency upgrades. However, it is not pin-compatible with MPC857T or MPC857DSL variants due to differences in SCC/SMC count, TSA presence, and PCMCIA signal allocation. Critical constraints include: (1) KAPWR voltage range differs in Power Down mode (2.0–3.6 V vs. VDDH–0.4 to VDDH for other modes); (2) unused inputs must be tied to GND/VCC per Table 2; (3) EXTAL/EXTCLK inputs require 0.7×VCC threshold compliance. Always verify against MPC862EC Rev. 3 for MPC862PVR100B-specific pin definitions.