ds21372 Maxim Integrated Products, Inc., ds21372 Datasheet - Page 7

• Manufacturer Part Number: ds21372
• Description: Ds21372 3.3v Bit Error Rate Tester Bert
• Manufacturer: Maxim Integrated Products, Inc.

PLR: PATTERN LENGTH REGISTER (ADDRESS=04 HEX)
5. 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)
6. PATTERN CONTROL REGISTER
The Pattern Control Register (PCR) is used to configure the operating parameters of the DS21372 and to
control the patterns being generated and received. Also the PCR is used to control the pattern
synchronizer and the error and bit counters.
(MSB)
(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.
LB4
PT4
7 of 22
LB3
PT3
LB2
PT2
LB1
PT1
(LSB)
(LSB)
LB0
PT0
DS21372