DM9301

100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter

Final

9

Version: DM9301-DS-F02

May 8, 2000

Diagnostic Port Interface (Continued)

49

FRCFXSD

I

Force FX Signal Detect

Forces the DM9301 FX interface Signal Detect true

Initiated at a H/W reset. Active high.

38

TPEN

I

Test Port Enable:

Enables the DM9301 Test Port features.

Initiated at a H/W reset. Active high.

87

TPMUX

I

Test Port Mux:

Controls the DM9301

Test Port Input and Output bits.

A value of zero indicates the TX interface and a value of

one indicates the FX interface. TPEN must be true (one)

for this signal to take effect.

Initiated at a H/W reset. Active high.

41

BPSCRAM

I

Bypass Scrambler:

Controls the DM9301

TX interface Scrambler/De-

scrambler function. A value of zero indicates to

scramble and de-scramble the TX interface

5-bit

symbol data to and from the FX interface. A value of one

bypasses the scrambler/de-scrambler function.

Initiated at a H/W reset. Active high.

Power and Ground Pins :

The power (VCC) and ground (GND) pins of the DM9301 are grouped in pairs of two categories - Digital

Circuitry Power/Ground Pairs and Analog Circuitry Power/Ground Pair.

Group A - Digital Supply Pairs

33, 42, 50, 53,

63, 68, 82, 90,

98

DGND

P

Digital Logic Ground.

37, 46, 51, 66,

81, 94

DVCC

P

Digital Logic power supply

Group B - Analog Circuit Supply Pairs

5, 6, 11, 12, 20,

29, 32, 99, 100,

AGND

P

Analog circuit ground

3, 4, 7, 15, 21,

26, 31

AVCC

P

Analog circuit power supply