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參數(shù)資料
| 型號(hào)： | DS1863 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Burst-Mode PON Controller With Integrated Monitoring |
| 中文描述： | DS1863突發(fā)模式PON控制器，集成監(jiān)控器 |
| 文件頁(yè)數(shù)： | 48/258頁(yè) |
| 文件大?。?/td> | 1263K |
| 代理商： | DS1863 |
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DS26522 Dual T1/E1/J1 Transceiver
48 of 258
8.9.4.5 Receive SLC-96 Operation (T1 Mode Only)
In an SLC-96-based transmission scheme, the standard Fs-bit pattern is robbed to make room for a set of
message fields. The SLC-96 multiframe is made up of six D4 superframes, thus it is 72 frames long. In the 72-
frame SLC-96 multiframe, 36 of the framing bits are the normal Ft pattern and the other 36 bits are divided into
alarm, maintenance, spoiler, and concentrator bits, as well as 12 bits of the normal Fs pattern. Additional SLC-96
information can be found in BellCore document TR-TSY-000008.
To enable the DS26522 to synchronize onto a SLC-96 pattern, the following configuration should be used:
RCR1
.5 (RFM) = 1
Set to D4 framing mode.
RCR1
.3 (SYNCC) = 1
Set to cross-couple Ft and Fs bits.
T1RCR2
.4 (RSLC96) = 1
Enable SLC-96 synchronizer.
RCR1
.7 (SYNCT) = 0
Set to minimum sync time.
The SLC-96 message bits can be extracted via the
T1RSLC1
:
T1RSLC3
registers. The status bit RSLC96 located
at
RLS7
.3 is useful for retrieving SLC-96 message data. The RSLC96 bit indicates when the framer has updated
the data link registers
T1RSLC1
:
T1RSLC3
with the latest message data from the incoming data stream. Once the
RSLC96 bit is set, the user has 9ms (or until the next RSLC96 interrupt) to retrieve the most recent message data
from the
T1RSLC1
:
T1RSLC3
registers. Note that RSLC96 will not set if the DS26522 is unable to detect the 12-bit
SLC-96 alignment pattern.
8.9.5 T1 Data Link
8.9.5.1 T1 Transmit Bit-Oriented Code (BOC) Transmit Controller
The DS26522 contains a BOC generator on the transmit side and a BOC detector on the receive side. The BOC
function is available only in T1 mode.
Table 8-13
shows the registers related to the transmit bit-oriented code.
Table 8-13. Registers Related to T1 Transmit BOC
REGISTER
FRAMER
ADDRESSES
FUNCTION
Transmit BOC Register (
T1TBOC
)
163h
Transmit bit-oriented message code register.
Transmit HDLC Control Register 2 (
THC2
)
113h
Bit to enable sending of transmit BOC.
Transmit Control Register 1(
TCR1
)
181h
Determines the sourcing of the F-bit.
Note:
The addresses shown are for Framer 1. The address for Framer 2 can be calculated by adding 200 hex to the framer address.
Bits 0 to 5 in the
T1TBOC
register contain the BOC message to be transmitted. Setting SBOC = 1 (
THC2
.6)
causes the transmit BOC controller to immediately begin inserting the BOC sequence into the FDL bit position. The
transmit BOC controller automatically provides the abort sequence. BOC messages will be transmitted as long as
SBOC is set. Note that the TFPT (
TCR1
.6) control bit must be set to 0 for the BOC message to overwrite F-bit
information being sampled on TSER.
8.9.5.1.1 To Transmit a BOC
1) Write 6-bit code into the
T1TBOC
register.
2) Set SBOC bit in
THC2
= 1.
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| DS1863B+ | 制造商:Maxim Integrated Products 功能描述:PON CONTROLLER 16 LEAD BGA PB FREE - Trays |
| DS1863B+T&R | 制造商:Maxim Integrated Products 功能描述:PON CONTROLLER 16 LEAD BGA PB FREE - Tape and Reel |
| DS1863E+ | 功能描述:激光驅(qū)動(dòng)器 Burst-Mode PON Ctlr w/Integrated Mntr RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
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| DS1863E+T | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Burst-Mode PON Controller With Integrated Monitoring |
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