DSP56374PB datasheet(2/128 Pages) MOTOROLA

Part #	DSP56374PB

Description	high density CMOS device with 3.3 V inputs and outputs

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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2

PRELIMINARY

Freescale Semiconductor

Features

Figure 1.

DSP56374 Block Diagram

1Features

1.1

DSP56300 Modular Chassis

•

150 Million Instructions Per Second (MIPS) with a 150 MHz clock at an internal logic supply (QVDDL) of 1.25 V.

•

Object Code Compatible with the 56K core.

•

Data ALU with a 24 x 24 bit multiplier-accumulator and a 56-bit barrel shifter;16 bit arithmatic support.

•

Program Control with position independent code support.

•

Six-channel DMA controller.

•

Provides a wide range of frequency multiplications (1 to 255), predivider factors (1 to 31), PLL feedback multiplier (2 or

4), Output divide factor (1, 2 or 4) and a power-saving clock divider (2i: i = 0 to 7) to reduce clock noise

•

Internal address tracing support and OnCE for Hardware/Software debugging.

•

JTAG port, supporting boundary scan, compliant to IEEE 1149.1.

•

Very low-power CMOS design, fully static design with operating frequencies down to DC.

•

STOP and WAIT low-power standby modes.

PLL

OnCE

Clock

Gen.

YAB

XAB

PAB

YDB

XDB

PDB

GDB

MODB/IRQB/GPIO

MODC/IRQC/GPIO

DSP56300

12

24-Bit

DDB

DAB

Peripheral

Core

Expansion Area

JTAG

4

5

RESET

MODA/IRQA/GPIO

PINIT/NMI

EXTAL

Address

Generation

Unit

Six Channel

DMA Unit

Program

Interrupt

Controller

Program

Decode

Controller

Program

Address

Generator

Data ALU

24

× 24+56→56-bit MAC

Two 56-bit Accumulators

56-bit Barrel Shifter

Power

Mgmt.

Memory Expansion Area

X Data

RAM

6k

× 24

Y Data

RAM

6k

× 24

Bootstrap

ROM

Internal

Data

Bus

Switch

SHI

GPIO

ESAI

ESAI_1

Interface

12*

15*

Triple

3

ROM

4k

× 24

ROM

4k

× 24

Program

RAM

6k

× 24

ROM

20k

× 24

XTAL

MODD/IRQD/GPIO

Timer

Watch

dog

Timer

* ESAI_1 and dedicated GPIO pins are not available in the 52-pin package.

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