EV8680 datasheet(21/39 Pages) CMLMICRO

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Evaluation Kit for CMX868

EV8680

UM8680/2

S-Register

Factory Profiles

Reg

Range

Units

Description

‘0’

‘1’

1-255

100ms

Reserved

S10

1-255

100ms

Lost carrier to hang up delay - Sets the

length of time that the modem waits before

hanging up after the loss of a carrier. This

allows the modem to distinguish between

disturbances that momentarily break the

connection and the remote modem hanging

up.

S11

5-255

10ms

DTMF tone duration - Defines the duration

of DTMF tones for tone dialling. The length

of pause between each DTMF tone is the

same as this duration time.

S12

0-255

50ms

Escape code guard time - Specifies the

minimum time before entry of the escape

sequence.

This value also dictates the

acceptable entry speed (inter-character time)

for each escape character.

S13

0-255

Decimal

Reserved

S14

0-255

Decimal

General options - provides the following

functions:

Bit

0 - Reserved

Bit

1 - Echo command character, 0 Disables

echoing (ATE0), 1 Enables echoing

(ATE1)

Bit

2 - Result code display, 0 Send

responses (ATQ0), 1 Do not send

responses (ATQ1)

Bit

3 - Word or number responses, 0 Send

number responses (ATV0), 1 Send word

responses (ATV1)

Bit

4 - Output format when reading CMX868

registers or S-registers, 0 Decimal, 1 Hex

Bit

5, 6 – Reserved

Bit

7 - Answer/originate operation, 0

Answer (ATA), 1 Originate (ATD)

138

128

S15

0-255

Decimal

Reserved

S16

0-255

Decimal

Reserved

S17

0-255

Decimal

Reserved

S18

0-255

General Purpose Timer - Used for various

firmware functions.

S19

0-255

10ms

General Purpose Timer – Used for various

firmware functions

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