DS2172

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PLR: PATTERN LENGTH REGISTER (Address=04 Hex)

(MSB)

(LSB)

-

-

-

LB4

LB3

LB2

LB1

LB0

SYMBOL

POSITION

NAME AND DESCRIPTION

-

PLR1.7

Not Assigned. Should be set to 0 when written to.

-

PLR1.6

Not Assigned. Should be set to 0 when written to.

-

PLR1.5

Not Assigned. Should be set to 0 when written to.

LB4

PLR1.4

Length Bit 4.

LB3

PLR1.3

Length Bit 3.

LB2

PLR1.2

Length Bit 2.

LB1

PLR1.1

Length Bit 1.

LB0

PLR1.0

Length Bit 0.

5.0 POLYNOMIAL TAP REGISTER

Polynomial Tap Bits PT4 - PT0 determine the feedback position of Tap B connected to the XOR input of

the pattern generator. Feedback Tap B provides one of two feedback paths within the pattern generator.

Please refer to Figure 2 for a block diagram of the pattern generator and to Tables 4 and 5 for register

programming examples.

PTR: POLYNOMIAL TAP REGISTER (Address=05 Hex)

(MSB)

(LSB)

-

-

-

PT4

PT3

PT2

PT1

PT0

SYMBOL

POSITION

NAME AND DESCRIPTION

-PTR.7

Not Assigned. Should be set to 0 when written to.

-PTR.6

Not Assigned. Should be set to 0 when written to.

-PTR.5

Not Assigned. Should be set to 0 when written to.

PT4

PTR.4

Polynomial Tap Bit 4.

PT3

PTR.3

Polynomial Tap Bit 3.

PT2

PTR.2

Polynomial Tap Bit 2.

PT1

PTR.1

Polynomial Tap Bit 1.

PT0

PTR.0

Polynomial Tap Bit 0.