XPC850SRCZT50B datasheet(3/68 Pages) MOTOROLA

Part #	XPC850SRCZT50B

Description	Communications Controller Hardware Specifications

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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MOTOROLA

MPC850 (Rev. A/B/C) Hardware Speciﬁcations

3

Part II Features

Figure 1 is a block diagram of the MPC850, showing its major components and the relationships among

those components:

Figure 1. MPC850 Microprocessor Block Diagram

The following list summarizes the main features of the MPC850:

•

Embedded single-issue, 32-bit MPC8xx core (implementing the PowerPC architecture) with

thirty-two 32-bit general-purpose registers (GPRs)

— Performs branch folding and branch prediction with conditional prefetch, but without

conditional execution

System Interface Unit

Memory Controller

Bus Interface Unit

System Functions

Real-Time Clock

PCMCIA Interface

Bus

Embedded

2-Kbyte

I-Cache

MMU

1-Kbyte

D-Cache

Data

MMU

Load/Store

Instruction

Bus

Parallel I/O

Baud Rate

Generators

Dual-Port

RAM

Interrupt

Controller

Four

Timers

20 Virtual

2 Virtual

32-Bit RISC Communications

Processor (CP) and Program ROM

SCC2

USB

SPI

Timer

Non-Multiplexed Serial Interface

MPC8xx

Core

Instruction

IDMA

Channels

Serial DMA

and

Channels

Unified Bus

Communications

Processor

Module

Peripheral Bus

SCC3

I2C

—

UTOPIA

Ports

(850SAR)

SMC1

SMC2

Time Slot Assigner

TDMa

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