DSCX-V34LF-066 View Datasheet(PDF) - Conexant Systems

Part Name

Description

MFG CO.

DSCX-V34LF-066

V.92/V.34/V.32bis Modem in 28-Pin or 38-Pin TSSOP with CX20493 SmartDAA®

Conexant Systems 

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2.15

CX86500 SCXV.xx Modem Data Sheet

Low Power Modes

The modem enters a low power mode when no line connection exists and no host activity

occurs for the period of time specified in the S24 register. The modem supports three low

power modes: Idle Mode, Sleep Mode, and Stop Mode. The low power mode entered

depends on the setting of the –SLP command.

In Idle Mode, the CPU and LSD run at a low frequency. The modem can detect and

qualify ring signals and process AT commands. The modem returns to normal mode upon

receiving an AT command or receiving a qualified ring.

In Sleep Mode, the CPU and LSD run at a lower frequency than Idle Mode. The modem

can detect and qualify ring signals but cannot process AT commands. The modem can be

awakened by the host sending a single (any) character (typically followed by an AT

command), or by the modem receiving a qualified ring.

In Stop Mode, the CPU runs at the same low frequency as the Sleep Mode, however, the

LSD is turned off. The modem cannot process AT commands and cannot detect and

qualify ring signals. The modem can be awakened by the host sending a single (any)

character (typically followed by an AT command).

2-10

Conexant

102287F

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