SI3015-F-FS View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

SI3015-F-FS

V.22BIS ISOMODEM® CHIPSET WITH ERROR CORRECTION

Silicon Laboratories 

Si2403

U70 IO0

Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Name HES

TES CIDM OCDM PPDM RIM DCDM

CID OCD PPD RI DCD

Type R/W

R/W R/W R/W R/W R/W R/W

R/W R/W R/W R/W R/W

Reset settings = 0x2700

Bit Name

Function

15

HES Hardware Escape Pin.

0 = Disable.

1 = Enable.

14 Reserved Read returns zero.

13

TES Enable “+++” Escape.

0 = Disable.

1 = Enable.

12 CIDM Caller ID Mask.

0 = Change in CID will not affect INT.

1 = A low-to-high transition in CID activates INT.

11 OCDM Overcurrent Detect Mask.

0 = Change in OCD does not affect INT. (“X” result code is not generated in command

mode.)

1 = A low-to-high transition in OCD will activate INT. (“X” result code is generated in command

mode.)

10 PPDM Parallel Phone Detect Mask.

0 = Change in PPD does not affect INT.

1 = A low-to-high transition in PPD will activate INT.

9

RIM Ring Indicator.

0 = Change in RI does not affect INT.

1 = A low-to-high transition in RI activates INT.

8 DCDM Data Carrier Detect Mask.

0 = Change in DCD does not affect INT.

1 = A high-to-low transition in DCD (U70, bit 0), which indicates loss of carrier, activates

INT.

7 Reserved Must be set to zero.

6:5 Reserved Read returns zero.

4

CID Caller ID (sticky).

Caller ID preamble has been detected; data will soon follow. Clears on :I read.

3

OCD Overcurrent Detect (sticky).

Overcurrent condition has occurred. Clears on :I read.

2

PPD Parallel Phone Detect (sticky).

Parallel phone detected since last off-hook event. Clears on :I read.

1

RI Ring Indicator.

Active high bit when the Si2403 is on-hook indicates ring event has occurred. Clears on :I

read.

0

DCD Data Carrier Detect (status).

Active high bit indicates carrier detected (equivalent to inverse of DCD pin).

Rev. 1.2

49

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