參數(shù)資料
型號(hào)： XRT83SL28
廠商： Exar Corporation
英文描述： 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
中文描述： 8路E1短途線路接口單元
文件頁(yè)數(shù)： 24/47頁(yè)
文件大?。?/td> 377K
代理商： XRT83SL28
XRT83SL28
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
xr
REV. 1.0.0
22
2.4
The XRT83SL28 has the ability to transmit all ones on a per channel basis by programming the appropriate
channel register. If TAOS is enabled, the Transmitter outputs will generate an All Ones pattern regardless of
the Transmit Input data. The Remote Loop Back mode has priority over TAOS. Figure 15 is a diagram showing
the all ones signal at TTIP and TRING.
F
IGURE
15. TAOS (T
RANSMIT
A
LL
O
NES
)ATAOS (A
UTOMATIC
T
RANSMIT
A
LL
O
NES
)
TAOS (Transmit All Ones)
2.5
Unlike TAOS, ATAOS is used to generate an All Ones signal only when an RLOS condition occurs. If ATAOS is
enabled, any channel that experiences an RLOS condition will automatically cause the transmitter on that
channel to send an all ones pattern to the line. When RLOS clears, the All Ones pattern ends and the Transmit
path returns to normal operation. For TAOS on the receive output pins, see ARAOS in the Receive Section of
this datasheet. A simplified block diagram of the ATAOS function is shown in Figure 16.
F
IGURE
16. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
ATAOS F
UNCTION
ATAOS (Automatic Transmit All Ones)
2.6
In Hardware mode, if TCLK is pulled "Low" for 16 MCLK cycles the transmitter outputs at TTIP/TRING are tri-
stated. If TCLK is pulled "High" for 16 MCLK cycles the transmitter will send an All Ones signal to the line,
using MCLK as reference.
2.7
DMO (Driver Monitor Output)
The driver monitor circuit is used to detect transmit driver failures by monitoring the activities at TTIP/TRING
outputs. Driver failure may be caused by a short circuit in the primary transformer or system problems at the
transmit inputs. If the transmitter of a channel has no output for more than 128 TCLK cycles, DMO goes "High"
until a valid transmit pulse is detected. If the DMO interrupt is enabled, the change in status of DMO will cause
the interrupt pin to go "Low". Once the status register is read, the interrupt pin will return "High" and the status
register will be reset (RUR).
Transmitter Power down in Hardware mode
TAOS
1
1
1
RLOS
ATAOS
TAOS
TTIP
TRING
Tx
相關(guān)PDF資料
PDF描述
XRT83SL28IV 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL30 SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83SL30IV SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83VSH28 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH28IB 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83SL28ES 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8 CH E1 LIU SH RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83SL28IV 功能描述:接口 - 專用 . . RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
XRT83SL28IV-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83SL30 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83SL30ES 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 1 CHT1/E1 LIUSH RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
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