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DS21Q55

Register Name:

LIC4

 

 

 

 

 

 

 

Register Description:

Line Interface Control 4

 

 

 

 

 

Register Address:

7Bh

 

 

 

 

 

 

 

Bit #

7

6

5

4

3

2

1

0

 

Name

CMIE

CMII

MPS1

MPS0

TT1

TT0

RT1

RT0

 

Default

0

0

0

0

0

0

0

0

 

Bits 0 to 1/Receive Termination Select (RT0 to RT1).

RT1

RT0

INTERNAL RECEIVE TERMINATION

CONFIGURATION

 

 

0

0

Internal Receive-Side Termination Disabled

0

1

Internal Receive-Side 75O Enabled

1

0

Internal Receive-Side 100O Enabled

1

1

Internal Receive-Side 120O Enabled

Bits 2 to 3/Transmit Termination Select (TT0 to TT1).

TT1

TT0

INTERNAL TRANSMIT TERMINATION

CONFIGURATION

 

 

0

0

Internal Transmit-Side Termination Disabled

0

1

Internal Transmit-Side 75O Enabled

1

0

Internal Transmit-Side 100O Enabled

1

1

Internal Transmit-Side 120O Enabled

Bits 4 and 5/MCLK Prescaler for T1 Mode.

MCLK (MHz)

MPS1

MPS0

JAMUX (LIC2.3)

1.544

0

0

0

3.088

0

1

0

6.176

1

0

0

12.352

1

1

0

2.048

0

0

1

4.096

0

1

1

8.192

1

0

1

16.384

1

1

1

Bits 4 and 5/MCLK Prescaler for E1 Mode.

MCLK (MHz)

MPS1

MPS0

JAMUX (LIC2.3)

2.048

0

0

0

4.096

0

1

0

8.192

1

0

0

16.384

1

1

0

Bit 6/CMI Invert (CMII).

0 = CMI normal at TTIP and RTIP

1 = invert CMI signal at TTIP and RTIP

Bit 7/CMI Enable (CMIE).

0 = disable CMI mode

1 = enable CMI mode

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Please contact telecom.support@dalsemi.com or search http://www.maxim-ic.com for updated

information.

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Image 159
Maxim DS21Q55 specifications LIC4, RT1 RT0 Internal Receive Termination Configuration, MPS1 MPS0 Jamux LIC2.3