DM560P 查看數據表（PDF） - Davicom Semiconductor, Inc.

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DM560P

V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set

Davicom Semiconductor, Inc. 

DM560P

V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set

Plug and Play Isolation Sequence

The Plug and Play isolation sequence is divided into

four states: Wait for Key, Sleep, Isolation, and

Configuration. The state transitions for the Plug and

Play ISA card are shown below:

POWER UP

RETDRV OR

RESET COMMAND

STATE

ACTIVE COMMANDS

WAIT FOR KEY

NO ACTIVE

COMMANDS

WAKE=0 & CSN=0

STATE

SLEEP

ACTIVE COMMANDS

RESET

RESET CSN

WAIT FOR KEY

WAKE(CSN)

WAKE<>0 & WAKE=CSN

STATE

ISOLATION

LOSE SERIAL ISOLATION OR

WAKE<>CSN

ACTIVE COMMANDS

RESET

RESET CSN

WAIT FOR KEY

SET RD_DATA PORT

SERIAL ISOLATION

WAKE(CSN)

SET CSN

SET CSN

WAKE<>CSN

STATE

CONFIG

ACTIVE COMMANDS

RESET

RESET CSN

WAIT FOR KEY

WAKE(CSN)

RESOURCE DATA

STATUS

LOGICAL DIVICE

I/O RANGE CHECK

ACTIVATE

CONFIGURATION REGISTERS

Plug and Play ISA Card State Transitions

Notes:

1. CSN = Card Select Number.

2. RSTDRV causes a state transition from the current state to Wait for Key and sets all CSNs to zero.

3. The Wait for Key command causes a state transition from the current state to Wait for Key.

4. The Reset CSN commands include PnP Reset CSN and DM Reset CSN commands.

PnP Reset CSN initializes all ISA PnP card CSNs to zero. The DM Reset CSN command initializes all DM6583

PnP card CSNs to zero.

Preliminary

21

Version: DM560P-DS-P07

August 11, 2000

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