參數(shù)資料
型號: DS21372
廠商: DALLAS SEMICONDUCTOR
元件分類: Telecom IC:Other
英文描述: SPECIALTY TELECOM CIRCUIT, PQFP32
封裝: TQFP-32
文件頁數(shù): 20/22頁
文件大小: 175K
代理商: DS21372
DS21372
7 of 22
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. 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.
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.
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DS214 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC