DS2172TN/T&R Maxim Integrated Products, DS2172TN/T&R Datasheet - Page 7

• Manufacturer Part Number: DS2172TN/T&R
• Description: Communication ICs - Various
• Manufacturer: Maxim Integrated Products
• Type: Bit Error Rate Testerr

Specifications of DS2172TN/T&R

• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Supply Type: Analog
• Package / Case: TQFP-32
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current: 10 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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)
-
SYMBOL
SYMBOL
LB4
LB3
LB2
LB1
LB0
PT4
PT3
PT2
PT1
PT0
-
-
-
-
-
-
-
POSITION
POSITION
PLR1.7
PLR1.6
PLR1.5
PLR1.4
PLR1.3
PLR1.2
PLR1.1
PLR1.0
PTR.7
PTR.6
PTR.5
PTR.4
PTR.3
PTR.2
PTR.1
PTR.0
-
NAME AND DESCRIPTION
Not Assigned. Should be set to 0 when written to.
Not Assigned. Should be set to 0 when written to.
Not Assigned. Should be set to 0 when written to.
Length Bit 4.
Length Bit 3.
Length Bit 2.
Length Bit 1.
Length Bit 0.
NAME AND DESCRIPTION
Not Assigned. Should be set to 0 when written to.
Not Assigned. Should be set to 0 when written to.
Not Assigned. Should be set to 0 when written to.
Polynomial Tap Bit 4
Polynomial Tap Bit 3.
Polynomial Tap Bit 2.
Polynomial Tap Bit 1.
Polynomial Tap Bit 0.
PT4
7 of 22
PT3
.
PT2
PT1
(LSB)
PT0
DS2172