DM6380L datasheet(4/40 Pages) ETC

部件名	DM6380L

功能描述	V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set

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制造商	ETC [List of Unclassifed Manufacturers]

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DM336P

V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set

4

Final

Version: DM336P-DS-F02

August 15, 2000

• Chip 1 : DM6383 Modem Controller Unit With PnP For ISA (MCU)

DM6383 Description

The DM6383 Modem Control Unit (MCU) is designed

for use in high speed internal and external modem

applications. Its interface is compatible with the

DM6381/DM6382 Transmit and Receive Digital

Signal Processor Chipset. The DM6383 incorporates

a micro-controller 80C31, virtual 16550A UART (with

FIFO mode), I/O and Plug & Play control logic. The

DM6383 MCU performs the general modem control

functions. It is also designed to provide Plug and Play

capability for ISA bus systems by implementing PnP

control logic. The PnP logic supports hardware &

software selectable options to allow users to

configure the internal modem card without jumpers.

DM6383 Block Diagram

8031

Micro-Controller

I/O Control Logic

Virtual 16550

UART

PC Data Bus

IRQ & R/W Control

RS 232 Interface

Mode Selection

External ROM,

RAM Interface

Modem Control

Interface

PC Address Bus

PnP Control

Logic

DM6383 Features

• Control interface support

• Supports parallel and serial interfaces

• Includes a micro-controller 80C31

• Maximum access 128K bytes external program

memory

• Maximum access 64K bytes external data memory

• Provides automatic configuration capability to

Industry

• Configuration selectable by software

• Interrupt lines selectable

• I/O base conflict avoidable

• Includes a virtual 16550A UART compatible parallel

interface

• Fully programmable serial interface:

- 6-, 7- or 8-bit characters

- Even, odd, or no-parity bit generation and

detection

- 1 and 2 stop bit generation

- Baud rate generation

• Includes I/O control logic for modem control

interface

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