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参数资料
| 型号： | PEF2080 |
| 厂商： | SIEMENS AG |
| 英文描述： | S/T Bus Interface Circuit(SBC) |
| 中文描述： | S / T的总线接口电路（SBC）的 |
| 文件页数： | 47/74页 |
| 文件大小： | 2620K |
| 代理商： | PEF2080 |
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Semiconductor Group
48
Operational Description
LT-S Mode
G1 deactivated
The SBC is not transmitting. No signal detected on the S interface, and no activation command is
received in C/l channel.
G2 synchronized
As a result of an INFO1 detected on the S line or an ARD command, the SBC begins transmitting
INFO2 and waits for reception of INFO3. INFO2 is sent after the awake detector has detected
pulses during 4 ms. The timer to supervise reception of INFO3 is to be implemented in software.
G3 activated
Normal state where INFO4 is transmitted to the S interface. This state is reached less than 2 ms
after an INFO3 first arrives at the SBC receiver. The SBC remains in this state as long as neither a
deactivation or a test mode is requested, nor a reset pulse is issued.
When receiver synchronism is lost, lNFO2 is sent automatically. After reception of INFO3, the
transmitter keeps on sending INFO4. (Version A7 and following)
G4 pend. deact.
This state is triggered by a deactivation request DR. It is an unstable state: indication DIU (state “G4
unackn.”) is issued by the SBC when:
– either INFO0 is received during 16 ms,
– or an internal timer of 32 ms expires.
G4 unacknowleded
Final state after a deactivation request. The SBC remains in this state until a response to DIU (in
other words DID) is issued, without which a new activation is impossible.
Test mode continuous pulses
Continuous alternating pulses are sent.
Test mode single pulses
Single alternating pulses are sent (2-kHz repetition rate).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PEF2080-N | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:S/T Bus Interface Circuit(SBC) |
| PEF2091 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:ICs for Communications(ISDN Echocancellation Circuit) |
| PEF2091F | 制造商:未知厂家 制造商全称:未知厂家 功能描述:?ISDN Echocancellation Circuit - 2B1Q Code? |
| PEF2091FV5.3 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:ICs for Communications(ISDN Echocancellation Circuit) |
| PEF2091HV5.3 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:ICs for Communications(ISDN Echocancellation Circuit) |
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