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參數(shù)資料
| 型號： | TTSI4K32T |
| 英文描述： | 4096-Channel, 32-Highway Time-Slot Interchanger |
| 中文描述： | 4096通道，32道時隙交換器 |
| 文件頁數(shù)： | 29/64頁 |
| 文件大?。?/td> | 1105K |
| 代理商： | TTSI4K32T |
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Data Sheet
June 2000
TTSI4K32T
4096-Channel, 32-Highway Time-Slot Interchanger
29
Lucent Technologies Inc.
Test-Pattern Checking
(continued)
2.
Set the Test-Pattern Checker Upper Time-Slot Register (0x0C), Table 25 on page 44 and the Test-Pattern
Checker Lower Time-Slot Register (0x0D), Table 26 on page 44 to indicate the range of input time slots which
will be carrying test data. The range is inclusive of the time slots indicated in both registers. If only one time slot
is to be selected, then the upper and lower registers should be set to the same value.
Set CPS[3—0] (bits 3—0) of the Test-Pattern Style Register (0x0A), Table 23 on page 43 to select the test pat-
tern to detect. If a fixed, user-defined byte is to be detected, the CTP[7—0] bits in the Test-Pattern Checker
Data Register (0x0E), Table 27 on page 44 should also be programmed with the user-defined pattern.
Select the data rate of the test-pattern checker via CHKHDR[1—0] (bits 3—2) and set STTPC (bit 6) in the Test
Command Register (0x09), Table 22 on page 42 to prompt the checker to attempt to lock onto the selected
test-pattern style.
If there is a need to restart the checker (i.e., the test-pattern style has changed), then STTPC (bit 6) of the Test
Command Register (0x09), Table 22 on page 42 must first be cleared to 0, and then steps 3 and 4 should be
repeated.
3.
4.
There is an interrupt register status bit related to the test-pattern checker. TPD (bit 5) of the Interrupt Status Regis-
ter (0x07), Table 20 on page 40 is used to determine when, if ever, the pattern is detected. The TPD interrupt sta-
tus bit will remain 0 until the pattern has been detected. This bit is cleared when read. Once TPD is set, it will not
be set again until the checker is instructed to relock on the test pattern by clearing and then setting STTPC (bit 6)
in the test command register.
Error Injection
The error injection feature provides the capability to inject errors into the outgoing test-pattern data. The number of
errors injected is set using the Test-Pattern Error Injection Register (0x0F), Table 28 on page 44.
If error injection is required, the process should start by setting up the test-pattern generator using steps 1—3 in
the Test-Pattern Generation section on page 28. In order to start injecting errors into the outgoing test pattern, write
the Test-Pattern Error Injection Register (0x0F), Table 28 on page 44 with the number of errors desired. When all of
the errors have been injected into the outgoing data stream, the interrupt status bit BEI (bit 0) will be set in the
Interrupt Status Register (0x07), Table 20 on page 40. Errors will be injected at the rate of one per time slot. Test
Command Register (0x09), Table 22 on page 42 will be cleared to 0 when BEI is set.
Error Checking
Errors are checked on time slots marked for test-pattern data once the checker has locked onto the test pattern.
Every time an error is detected, the ERD (bit 3) interrupt status bit is set and the test-pattern error counter register
contents are incremented. There are two registers Test-Pattern Error Counter (Byte 0) (0x10), Table 29 on page 45
and Test-Pattern Error Counter (Byte 1) (0x11), Table 30 on page 45, that are used to track the number of errors
detected on incoming test patterns.
The error counter registers are reset after both have been read. In order to ensure that the correct value is read
from these registers, byte 0 must be read first followed by byte 1. This action will latch the counter value and allow
the counter logic to be reset and then continue recording.
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PDF描述 |
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| TTSI4K32T3BAL | 4096-Channel, 32-Highway Time-Slot Interchanger |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TTSI4K32T3BAL | 制造商:AGERE 制造商全稱:AGERE 功能描述:4096-Channel, 32-Highway Time-Slot Interchanger |
| TTSL-1 | 功能描述:電線鑒定 THERM. TRANS. SELFLAM LABEL RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| TTSL10VC3-5 | 功能描述:電線鑒定 ThermTrans, Self-Lam Label, Vinyl, .50" RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| TTSL126VC3-1 | 功能描述:電線鑒定 1.0" X 7.44" THERMAL RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| TTSL-13 | 功能描述:電線鑒定 ThermTrans, Self-Lam Label, Vinyl, 1.00" RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
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