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

Table 14. U-Register Descriptions (Continued)

Register Name Description

U51

LCDF Loop current debounce off time (ms units).

U52

XMTL Transmit level (1 dB units)—Sets the modem data pump transmitter level.

Default level of 0 corresponds to –9.85 dBm.

Transmit level = –(9.85 + XMTL) dBm. Range = –9.85 to –48.

U53

MOD2 This is a bit-mapped register.

U62 DAAC1 This is a bit-mapped register.

U65 DAAC4 This is a bit-mapped register.

U66 DAAC5 This is a bit-mapped register.

U67

ITC1 This is a bit-mapped register.

U68

ITC2 This is a bit-mapped register.

U69

ITC3 This is a bit-mapped register.

U6A

ITC4 This is a bit-mapped register.

U6E

CK1 This is a bit-mapped register.

U6F

PTMR This is a bit-mapped register.

U70

IO0 This is a bit-mapped register.

U76

GEN1 This is a bit-mapped register.

U77

GEN2 This is a bit-mapped register.

U78

GEN3 This is a bit-mapped register.

U79

GEN4 This is a bit-mapped register.

U7A

GENA This is a bit-mapped register.

U7C

GENC This is a bit-mapped register.

U7D

GEND This is a bit-mapped register.

U83

NOLN No-Line threshold. If %V1 is set, NOLN sets the threshold for determination of

line present vs. line not present.

U84

LIUS Line-in-use threshold. If %V1 is set, LIUS sets the threshold for determination

of line in use vs. line not in use.

U85

NLIU Line-in-use/No line threshold. If %V2 is set, NLIU sets the threshold reference

for the adaptive algorithm (see %V2).

Default

0x00C8

0x0000

0x0000

0x0804

0x00E0

0x0049

0x0008

0x0000

0x0006

n/a

0x1F20

0x00FF

0x2700

0x3240

0x401E

0x0000

0x0000

0x0000

0x0000

0x0001

0x0007

0x0000

38

Rev. 1.2

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