DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

Register Name:

TR.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

Bit 7: CMI Enable (CMIE)

0 = disable CMI mode

1 = enable CMI mode

Bit 6: CMI Invert (CMII)

0 = CMI normal at TTIP and RTIP

1 = invert CMI signal at TTIP and RTIP

Bits 4 – 5: MCLK Prescaler

T1 Mode:

MCLK (MHz)

MPS1

MPS0

JAMUX

(TR.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

E1 Mode:

 

 

 

MCLK

MPS1

MPS0

JAMUX

(MHz)

(TR.LIC2.3)

 

 

2.048

0

0

0

4.096

0

1

0

8.192

1

0

0

16.384

1

1

0

Bits 2 – 3: Transmit Termination Select (TT0, TT1)

TT1

TT0

Internal Transmit-Termination Configuration

0

0

Internal transmit-side termination disabled

0

1

Internal transmit -side 75Ω enabled

1

0

Internal transmit -side 100Ω enabled

1

1

Internal transmit -side 120Ω enabled

Bits 0 – 1: Receive Termination Select (RT0, RT1)

 

 

 

RT1

RT0

Internal Receive-Termination Configuration

0

0

Internal receive-side termination disabled

0

1

Internal receive-side 75Ω enabled

1

0

Internal receive-side 100Ω enabled

1

1

Internal receive-side 120Ω enabled

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Image 259
Maxim DS33R11 specifications TR.LIC4, Mclk MPS1 MPS0 Jamux, TT1 TT0, RT1 RT0