MPC8255AVVPIBB

MPU PowerQUICC II MPC82xx Processor RISC 32Bit 0.25um 300MHz 3.3V 480Pin TBGA Tray

Overview

The PowerQUICC® II™ integrated communications processor family delivers excellent integration of processing power for networking and communications peripherals, providing customers with an innovative, total system solution for building high-end communications systems. ® Semiconductors"s PowerQUICC II processor family is the next generation of the leading PowerQUICC™ line of integrated communications processors, providing higher performance in all areas of device operation, including greater flexibility, extended capabilities, and higher integration.

Our leading PowerQUICC architecture integrates two processing blocks. One block is a high-performance embedded G2 core and the second block is the Communications Processor Module CPM. The CPM of the MPC8255 processor can support up to two fast serial communications controllers FCCs, one multichannel controller MCC, four serial communications controllers SCCs, two serial management controllers SMCs, one serial peripheral interface SPI and one I2C interface. The combination of the G2 core and the CPM, along with the versatility and performance of the PowerQUICC II processor family, provides customers with enormous potential in developing networking and communications products while significantly reducing time-to-market development stages.

"Products MPC8255ACVVMHBB, MPC8255ACZUMHBB, MPC8255AVVMHBB, , MPC8255AZUMHBB, and MPC8255AZUPIBB on this page are Not Recommended for New Designs".

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## Features

**Product Highlights**

* 300 MHz high-speed embedded G2 core

* Powerful memory controller and system functions

* Enhanced 32-bit RISC communications processor module

* Up to two multiport 10/100 Mbps ethernet MAC

* Up to two UTOPIA II ATM interfaces

* Up to 128 HDLC channels each channel 64 Kbps, full duplex

* Up to four 10 Mbps ethernet MAC

* Strong 3rd-party tools support from 合作伙伴计划 partner program members

**Typical Applications**

* Remote Access Concentrators

* Regional Office Routers

* Cellular Infrastructure equipment

* Telecom Switching Equipment

* Ethernet Switches

* T1/E1-to-T3/E3 Bridges

* xDSL Systems

**Technical Specifications**

* Embedded G2 core at 300 MHz

* 570 MIPS at 300 MHz Dhrystone 2.1

* High-performance, superscalar microprocessor

* Disable CPU mode

* Supports the NXP® external L2 cache chip MPC2605

* Improved low-power core

* 16 Kbyte data and 16 Kbyte instruction cache

* Memory Management Unit

* Floating Point Unit

* Common On-chip Processor COP

* System Interface Unit SIU

* Memory controller, including two dedicated SDRAM machines

* PCI up to 66 MHz

* Hardware bus monitor and software watchdog timer

* IEEE 1149.1 JTAG test access port

* High-Performance CPM with operating frequency of 133 MHz

* Parallel I/0 registers

* On-board 32 Kbytes of dual-port RAM

* One multichannel controller MCC, each supporting 128 full-duplex, 64 Kbps, HDLC lines

* Virtual DMA functionality

* Two FCCs supporting 10/100 Mbps Ethernet up to two IEEE 802.3X with Flow Control

* Three MII interfaces

* Four TDM interfaces T1/E1 supporting four T1 lines or one T3 line

* Two bus architectures: one 64-bit 60x bus and one 32-bit PCI or local bus

* Integrated PCI interface

* 1.8V or 2.0V internal and 3.3V I/O

* 300 MHz power consumption: ~3 W

* 480 TBGA package 37.5 x 37.5 mm

## Features Comparison Table

### MPC8260 Derivatives

| 8250 | 8255 | 8260 | 8264 | 8265 | 8266

\---|---|---|---|---|---|---

**IMA Functionality** | - | - | - | Yes | - | Yes

**UTOPIA II Ports** | 0 | 2 | 2 | 2 | 2 | 2

**PCI Interface** | Yes | - | - | - | Yes | yes

**Multi-Channel HDLC** | Up to 128 | Up to 128 | Up to 256 | Up to 256 | Up to 256 | Up to 256

**I-Cache Kbyte** | 16 | 16 | 16 | 16 | 16 | 16

**Fast Communication Controllers FCCs** | 3 | 2 | 3 | 3 | 3 | 3

**Serial Communications Controllers SCCs** | 4 | 4 | 4 | 4 | 4 | 4

**D-Cache Kbyte** | 16 | 16 | 16 | 16 | 16 | 16

**Ethernet 10/100** | Up to 3 | Up to 2 | Up to 3 | Up to 3 | Up to 3 | Up to 3

**Ethernet 10T** | Up to 4 | Up to 4 | Up to 4 | Up to 4 | Up to 4 | Up to 4

### PowerQUICC II Masks and Versions

| IMMR_ [16-31]1 | Rev_Num2 | Qualification | Revision | Process | Mask

\---|---|---|---|---|---|---

**MPC8260 Family** | | | XC | A.1

B.3

C.2 | 0.29 µm

HiP3 | 0K26N

3K23A

6K23A, 7K23A

**MPC8260 Family** | | | XC

MC

MC | A.0

B.1

C.0 | 0.25 µm

HiP4 | 2K25A

4K25A

5K25A

**MPC8280 Family** | | | -

MC

MC | 0

0.1

A.0 | 0.13 µm

HiP7 | 0K49M

1K49M

2K49M, 3K49M

**MPC8272 Family** | | | PC

MC | 0

A.0 | 0.13 µm

HiP7 | 0K50M

1K50M

Notes:

1\\. The IMMR[16-31] indicates the mask number.

2\\. The Rev_Num located at offset 0x8AF0 in DPRAM indicates the CPM microcode revision number.

3 . Encryption Enabled.

4 . Encryption Disabled.

Masks and versions table last updated on 14OCT2004.