MSC8126 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MSC8126

Quad Digital Signal Processor

Freescale Semiconductor 

SC140

Extended Core

SC140

Extended Core

SC140

Extended Core

SC140

Extended Core

MQBus

Boot

ROM

M2

RAM

M2

RAM

128

128

64

IP Master

Memory

Controller

SQBus

Local Bus

32 Timers

UART

RS-232

TCOP

VCOP

PLL/Clock

JTAG Port

IP Master

IPBus2

PLL

JTAG

IPBus

32

64 Internal Local Bus

System

Interface

DMA

Bridge

Internal System Bus

SIU

Registers

64

4 TDMs

GPIO

GIC

8 Hardware

Semaphores

Ethernet

GPIO Pins

Interrupts

MII/RMII/SMII

Direct

Slave

Interface

(DSI)

DSI Port

32/64

Memory

System Bus

Controller 32/64

Figure 1. MSC8126 Block Diagram

Program

Sequencer

Address

Register

File

SC140

Core

Address

ALU

JTAG

EOnCE

Power

Management

Data ALU

Register

File

Data

ALU

SC140 Core

64

Xa

64

Xb

128

P

Instruction

Cache

128

QBus

PIC

IRQs

LIC

QBus

Bank 1

M1

RAM

QBC

QBus

Bank 3

QBus

Interface

IRQs

MQBus

SQBus

128

128

Local Bus

64

Notes: 1. The arrows show the data transfer direction.

2. The QBus interface includes a bus switch, write buffer, fetch unit, and a control unit that defines

four QBus banks. In addition, the QBC handles internal memory contentions.

Figure 2. StarCore SC140 DSP Extended Core Block Diagram

MSC8126 Quad Digital Signal Processor Data Sheet, Rev. 14

Freescale Semiconductor

3

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