參數(shù)資料
型號(hào)： ORT8850L
英文描述： Field-Programmable System Chip (FPSC) Eight-Channel x 850 Mbits/s Backplane Transceiver
中文描述： 現(xiàn)場(chǎng)可編程系統(tǒng)芯片（促進(jìn)文化基金）8通道x 850 Mbits /秒背板收發(fā)器
文件頁(yè)數(shù)： 12/112頁(yè)
文件大?。?/td> 2417K
代理商： ORT8850L
12
Agere Systems Inc.
Data Sheet
August 2001
Eight-Channel x 850 Mbits/s Backplane Transceiver
ORCA
ORT8850 FPSC
ORT8850 Overview
Device Layout
The ORT8850 FPSC provides a high-speed backplane
transceiver combined with FPGA logic. The device is
based on 1.5 V OR4E2 or OR4E6 FPGAs. The OR4E2
has a 26 x 24 array of programmable logic cells (PLCs)
and the OR4E6 has a 46 x 44 array. For the ORT8850,
several columns of PLCs in these arrays were replaced
with the embedded backplane transceiver core.
The ORT8850 embedded core comprises a long-haul
interface macro and three
RapidIO
macros for intra-
board chip-to-chip or backplane communication. The
long-haul interface includes the high-speed interface
(HSI) macrocell, the synchronous transport module
(STM) macrocell, and a 8B/10B encoder/decoder. The
eight full-duplex channels perform data transfer, scram-
bling/descrambling or encoding/decoding, and framing
at the rate of 850 Mbits/s. Each
RapidIO
block has a
transmit and receive section that each contain one
LVDS clock buffer pair, one LVDS start-of-cell buffer
pair, and eight LVDS clock buffer pairs which are dou-
ble edge clocked by the corresponding clock. Figure 1
shows the ORT8850 block diagram.
Backplane Transceiver Interface
The advantage of the ORT8850 FPSC is to bring spe-
cific networking functions to an early market presence
using programmable logic in a system.
The 850 Mbits/s backplane transceiver core allows the
ORT8850 to communicate across a backplane or on a
given board at an aggregate speed of 6.8 Gbits/s, pro-
viding a physical medium for high-speed asynchronous
serial data transfer between system devices. This
device is intended for, but not limited to, connecting ter-
minal equipment in SONET/SDH, ATM, and IP sys-
tems.
The backplane transceiver core is used to support a
6.8 Gbits/s interface for backplane connection to a
mate TADM042G5 device or other SONET devices
such as redundant central crossconnect. The interface
is implemented as an eight-channel 850 Mbits/s LVDS
links. The HSI macrocell is used for clock/data recov-
ery (CDR) and serialize/deserialize between the
106.25 MHz byte-wide internal data buses and the
850 Mbits/s serial LVDS links. For a 622 Mbits/s
SONET stream, the HSI will perform clock and data
recovery (CDR) and MUX/deMUX between 77.76 MHz
byte-wide internal data buses and 622 Mbits/s serial
LVDS links.
Each 850 Mbits/s serial link uses a pseudo-SONET
protocol. SONET A1/A2 framing is used on the link to
detect the 8 kHz frame location. The link is also scram-
bled using the standard SONET scrambler definition to
ensure proper transitions on the link for improved CDR
performance. Selectable transport overhead (TOH)
bytes are insertable in the transmit direction. All the
selectable bytes are inserted from software program-
mable registers that are accessed via a microproces-
sor interface.
Elastic buffers (FIFOs) are used to align each incoming
STS-12 link to the 77.76 MHz clock and 8 kHz frame.
These FIFOs will absorb delay variations between the
four 622 Mbits/s links due to timing skews between
cards and along backplane traces. For greater varia-
tions, a streamlined pointer processor (pointer mover)
within the STM macro will align the 8 kHz frames
regardless of their incoming frame position.
The backplane transceiver allows for SONET scram-
bling and frame alignment or 8-bit/10-bit (8B/10B)
encoding/decoding. SONET has the advantage of
reduced overhead (3.3% overhead for SONET vs. 25%
overhead for 8B/10B). 8B/10B has the advantage of
faster synchronization (a few bytes of transferred data
for 8B/10B vs. up to 500
μ
s for four frames of data for
SONET). The effective data transfer rate for scrambled
SONET is greater than 800 Mbits/s while the effective
data transfer rate for 8B/10B is greater than
680 Mbits/s. Frame synchronization and multichannel
alignment is provided in 8B/10B mode through the use
of special K characters.
Figure 2 shows the architecture of the ORT8850 back-
plane transceiver core.
相關(guān)PDF資料
PDF描述
OS1001 Interface IC
OS1010 Optoelectronic
OS1011 SINGLE 1.8V, 200 KHZ OP, E TEMP, -40C to +125C, 8-PDIP, TUBE
OS1012 1.8V, 200kHz single low-cost, CMOS Op Amplifier on 120K Analog ROM process., -40C to +125C, 8-MSOP, T/R
OS1013 1.8V, 200kHz single low-cost, CMOS Op Amplifier on 120K Analog ROM proccess., -40C to +125C, 5-SOT-23, T/R
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ORT8850L-1BM680C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 278 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
ORT8850L-1BM680I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 278 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
ORT8850L-1BMN680C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 278 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
ORT8850L-1BMN680I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 278 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
ORT8850L-2BM680C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 278 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*