參數(shù)資料
型號: XE8000EV108
廠商: Semtech
文件頁數(shù): 134/143頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XE8806/XE8807
標準包裝: 1
類型: MCU
適用于相關(guān)產(chǎn)品: XE88LC06AMI026
所含物品: 完全組裝的評估板
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
Semtech 2006
www.semtech.com
14-10
XE8806A/XE8807A
Figure 14-6. Pattern start detection in NRZ-Mark for RfifRxSPat[7:0]=10011111
The start pattern can not be less than 8 bits since no bits can be set as “don’t care”.
14.8.3
PCM decoding
The interface can receive coded or uncoded messages. The coding/decoding function is enabled/disabled using
the bit RfifEnCod (1 = enable) in the register RegRfifCmd2.
The PCM code type is selected using the RfifPCM[2:0] control word in the register RegRfifCmd2. The selection
control bits are given in Table 14-12.
NRZ
Bi-Phase
PCM Codes
Level
Mark
Space
Level
Mark
Space
Miller
RfifPCM[2:0]
000
001
010
011
100
101
11X
Table 14-14: PCM code selection
If the decoder detects invalid code sequences and the selected start detection mode is not the “protocol “ mode
(RfifEnStart[1:0]
≠ 01, see Table 14-13), the decoder output generates an equivalent number of random data bits.
If the decoder is disabled (RfifEnCod = 0), the meaning of the RfifPCM[2:0] changes: if the NRZ coding is
selected, the input bit stream is sampled at the selected bit rate. If the Manchester or Miller coding is selected, the
input stream is sampled at twice the data rate. This allows the decoding of the bit stream by software.
14.8.4
Reception FIFO
The decoder output data are serially shifted in a shift register (see Figure 14-1). The bit RfifRxBusy = 1 in
RegRfifRxSta indicates that new data are shifted in.
When 8 new bits are present in the shift register, the byte is loaded in the FIFO. The FIFO has a depth of 4. The bit
RfifRxReady = 1 in RegRfifRxSta indicates that at least 1 byte is present in the FIFO. The software can read the
data in the FIFO in RegRfifRx. When the bit RfifRxFifoFull is 1, the FIFO is full and data should be read by the
software before the next byte is received. If not, data will be lost and the bit RfifRxFifoOverrun is set to 1. Writing
a 1 to this bit will clear the bit and the FIFO contents. The detection of a new start sequence will also clear the
RfifRxFifoOverrun bit and the FIFO contents.
The first bit that is received can be found in the position RfifRx[0], the second bit in the position RfifRx[1] and so
on.
NRZ - Mark
1
10
00
01
1
0
1
start sequence
first bit in FIFO
RfifRxSPat=10011111
decoded data
相關(guān)PDF資料
PDF描述
94SVP476X0020E7 CAP ALUM 47UF 20V 20% SMD
EBC22DRTI-S13 CONN EDGECARD 44POS .100 EXTEND
AT-S-26-8/8/B-14-R MOD CORD STANDARD 8-8 BLACK 14'
LGU2E221MELZ CAP ALUM 220UF 250V 20% SNAP
VE-BT1-EY CONVERTER MOD DC/DC 12V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XE8000EV110 功能描述:EVAL BOARD FOR XE8802AMI035LF RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 通用嵌入式開發(fā)板和套件(MCU、DSP、FPGA、CPLD等) 系列:- 產(chǎn)品培訓模塊:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色產(chǎn)品:Blackfin? BF50x Series Processors 標準包裝:1 系列:Blackfin® 類型:DSP 適用于相關(guān)產(chǎn)品:ADSP-BF548 所含物品:板,軟件,4x4 鍵盤,光學撥輪,QVGA 觸摸屏 LCD 和 40G 硬盤 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相關(guān)產(chǎn)品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA
XE8000EV120 功能描述:BOARD EVAL FOR SX8722I070TRLF RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:ZoomingADC™ 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率(每秒):94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源(標準):- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板,軟件
XE8000EV121 功能描述:BOARD EVAL FOR SX8723/24 RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理,電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
XE8000MP 功能描述:PROG BOARD AND PROSTART2 CARD RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 獨立編程器 系列:- 產(chǎn)品目錄繪圖:CHIPPROG-G4 標準包裝:1 系列:- 類型:成組編程器 適用于相關(guān)產(chǎn)品:EEPROM,EPROM,F(xiàn)LASH,MCU,NVRAM,PLD 所含物品:編程器,線纜,CD 產(chǎn)品目錄頁面:598 (CN2011-ZH PDF) 相關(guān)產(chǎn)品:AE-TS56-16I-3-ND - ISP CABLEADAPTER 14-PIN HEADERAE-TS40N-ND - ADAPTER SOCKET 40-TSOP TO 40-DIPAE-TS32N-ND - ADAPTER SOCKET 32-TSOP TO 32-DIPAE-TS28-ND - ADAPTER SOCKET 28-TSOP TO 28-DIPAE-T44-P16-ND - ADAPTER SOCKET 44-QFP TO 40-DIPAE-T44-I51/505-ND - ADAPTER SOCKET 44-QFP TO 40-DIPAE-SS56-16I-ND - ADAPTER SOCKET 56-SSOP TO 40-DIPAE-SP8U-ND - ADAPTER SOCKET 8-SSOP TO 8-DIPAE-SP28U2-ND - ADAPTER SOCKET 28-SSOP TO 28-DIPAE-SP28U1-ND - ADAPTER SOCKET 28-SSOP TO 28-DIP更多...
XE8801A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Data Acquisition with ZoomingADC?