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| 型號(hào)： | DS32506N+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 64/130頁(yè) |
| 文件大小： | 0K |
| 描述： | IC LIU DS3/E3/STS-1 484-BGA |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 類型： | 線路接口裝置（LIU） |
| 規(guī)程： | IEEE 1149.1 |
| 電源電壓： | 1.8V, 3.3V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 484-BGA |
| 供應(yīng)商設(shè)備封裝： | 484-BGA（23x23） |
| 包裝： | 管件 |
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DS32506/DS32508/DS32512
39 of 130
Figure 8-9. Repetitive Pattern Synchronization State Diagram
Sync
Match
Verify
1 bit error
Pattern Matches
32
bit
s
w
ith
ou
t e
rr
or
s
6
of
64
bit
s
w
ith
err
ors
8.5.2.3
Receive Pattern Monitoring
Receive pattern monitoring monitors the incoming data stream for both an OOS condition and bit errors and counts
the incoming bits. An Out Of Synchronization (BERT.SR:OOS = 1) condition is declared when the synchronization
state machine is not in the “Sync” state. An OOS condition is terminated when the synchronization state machine is
in the “Sync” state. A change of state of the OOS status bit sets the BERT.SRL:OOSL latched status bit and can
cause an interrupt if enabled by BERT.SRIE:OOSIE.
Bit errors are determined by comparing the incoming data stream bit to the receive pattern generator output. If the
two bits do not match, a bit error is declared (BERT.SRL:BEL = 1), and the bit error and bit counts are incremented
(BERT.RBECR and BERT.RBCR, respectively). If the two bits do match, only the bit count is incremented. The bit
count and bit error count are not incremented when an OOS condition exists. The setting of the BEL status bit can
cause an interrupt if enabled by BERT.SRIE:BEIE.
8.5.3 Transmit Pattern Generation
The pattern generator generates the outgoing test pattern. The transmit pattern generator is a 32-bit shift register
that shifts data from the least significant bit (LSB) or bit 1 to the most significant bit (MSB) or bit 32. The input to bit
1 is the feedback. For a PRBS pattern (generating polynomial x
n + xy + 1), the feedback is an XOR of bit n and bit
y. For a repetitive pattern (length n), the feedback is bit n. The values for n and y are individually programmable (1
to 32 with y < n) in the BERT.PCR:PLF and PTF fields. The output of the receive pattern generator is the feedback.
If QRSS is enabled (BERT.PCR:QRSS = 1), the feedback is forced to be an XOR of bits 17 and 20, and the output
is forced to one if the next 14 bits are all zeros. For PRBS and QRSS patterns, the feedback is forced to one if bits
1 through 31 are all zeros. When a new pattern is loaded, the pattern generator is loaded with a seed/pattern value
before pattern generation starts. The seed/pattern value is programmable (0 - 2
n - 1) in the BERT.SPR registers.
The generated pattern can be inverted by setting BERT.CR:TPIC.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS32506N# | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 6-Port DS3/E3/STS-1 Line Interface Unit RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS32506N+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 6-Port DS3/E3/STS-1 Line Interface Unit RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS32506NA2 | 制造商:Maxim Integrated Products 功能描述:DS32506A2 X6 DS3/E3 LIU - Rail/Tube |
| DS32506NW | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS32506W | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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