- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97866 > DS21352L (MAXIM INTEGRATED PRODUCTS INC) DATACOM, PCM TRANSCEIVER, PQFP100 PDF資料下載
參數(shù)資料
| 型號： | DS21352L |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PQFP100 |
| 封裝： | 14 X 14 MM, LQFP-100 |
| 文件頁數(shù)： | 108/139頁 |
| 文件大?。?/td> | 1208K |
| 代理商： | DS21352L |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁當(dāng)前第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁
DS21352/DS21552
70 of 137
15.3.3.2 TRANSMIT AN HDLC MESSAGE
1) Make sure HDLC controller is done sending any previous messages and is current sending flags by checking that the
FIFO is empty by reading the TEMPTY status bit in the TPRM register.
2) Enable either the THALF or TNF interrupt.
3) Read THIR to obtain TFULL status.
a) If TFULL=0, then write a byte into the FIFO and skip to next step (special case occurs when the last byte is to be
written, in this case set TEOM=1 before writing the byte and then skip to step 6).
b) If TFULL=1, then skip to step 5.
4) Repeat step 3.
5) Wait for interrupt, skip to step 3.
6) Disable THALF or TNF interrupt and enable TMEND interrupt.
7) Wait for an interrupt, then read TUDR status bit to make sure packet was transmitted correctly.
15.3.3.3 TRANSMIT A BOC
1) Write 6–bit code into TBOC.
2) Set SBOC bit in TBOC=1.
15.3.4 HDLC/BOC Register Description
HCR: HDLC CONTROL REGISTER (Address=00 Hex)
(MSB)
(LSB)
RBR
RHR
TFS
THR
TABT
TEOM
TZSD
TCRCD
SYMBOL
NAME AND DESCRIPTION
RBR
HCR.7
Receive BOC Reset. A 0 to 1 transition will reset the BOC circuitry. Must be cleared
and set again for a subsequent reset.
RHR
HCR.6
Receive HDLC Reset. A 0 to 1 transition will reset the HDLC controller. Must be
cleared and set again for a subsequent reset.
TFS
HCR.5
Transmit Flag/Idle Select.
0 = 7Eh
1 = FFh
THR
HCR.4
Transmit HDLC Reset. A 0 to 1 transition will reset both the HDLC controller and the
transmit BOC circuitry. Must be cleared and set again for a subsequent reset.
TABT
HCR.3
Transmit Abort. A 0 to 1 transition will cause the FIFO contents to be dumped and one
FEh abort to be sent followed by 7Eh or FFh flags/idle until a new packet is initiated by
writing new data into the FIFO. Must be cleared and set again for a subsequent abort to
be sent.
TEOM
HCR.2
Transmit End of Message. Should be set to a one just before the last data byte of a
HDLC packet is written into the transmit FIFO at TFFR. This bit will be cleared by the
HDLC controller when the last byte has been transmitted.
TZSD
HCR.1
Transmit Zero Stuffer Defeat. Overrides internal enable.
0 = enable the zero stuffer (normal operation)
1 = disable the zero stuffer
TCRCD
HCR.0
Transmit CRC Defeat.
0 = enable CRC generation (normal operation)
1 = disable CRC generation
HSR: HDLC STATUS REGISTER (Address=01 Hex)
(MSB)
(LSB)
RBOC
RPE
RPS
RHALF
RNE
THALF
TNF
TMEND
SYMBOL
POSITION
NAME AND DESCRIPTION
RBOC
HSR.7
Receive BOC Detector Change of State. Set whenever the BOC detector sees a
change of state from a BOC Detected to a No Valid Code seen or vice versa. The setting
of this bit prompt the user to read the RBOC register for details.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS21352LN | DATACOM, PCM TRANSCEIVER, PQFP100 |
| DS21552L | DATACOM, PCM TRANSCEIVER, PQFP100 |
| DS21552LN | DATACOM, PCM TRANSCEIVER, PQFP100 |
| DS21354L | DATACOM, PCM TRANSCEIVER, PQFP100 |
| DS21354LN | DATACOM, PCM TRANSCEIVER, PQFP100 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21352L+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21352LB | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21352LB+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21352LBN | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS21352L-C02 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Single Chip Transceivers RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。