參數(shù)資料
型號： DS21FF42
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PBGA300
封裝： 27 X 27 MM, BGA-300
文件頁數(shù)： 51/115頁
文件大?。?/td> 534K
代理商： DS21FF42
DS21FF42/DS21FT42
40 of 115
SYMBOL
POSITION
NAME AND DESCRIPTION
RFF
CCR4.3
Receive Force Freeze. Freezes receive side signaling at
RSIG (and RSER if CCR4.7=1); will override Receive
Freeze Enable (RFE). See Section 14 for details.
0 = do not force a freeze event
1 = force a freeze event
THSE
CCR4.2
Transmit Hardware Signaling Insertion Enable. See
Section 14 for details.
0 = do not insert signaling from the TSIG pin into the data
stream presented at the TSER pin.
1 = Insert the signaling from the TSIG pin into data stream
presented at the TSER pin.
TPCSI
CCR4.1
Transmit Per–Channel Signaling Insert. See Section 14
for details.
0 = do not use TCHBLK to determine which channels should
have signaling inserted from the TSIG pin.
1 = use TCHBLK to determine which channels should have
signaling inserted from the TSIG pin.
TIRFS
CCR4.0
Transmit Idle Registers (TIR) Function Select. See
Section 15 for timing details.
0 = TIRs define in which channels to insert idle code
1 = TIRs define in which channels to insert data from RSER
(i.e., Per = Channel Loopback function)
CCR5: COMMON CONTROL REGISTER 5 (Address=19 Hex)
(MSB)
(LSB)
TJC
–
TCM4
TCM3
TCM2
TCM1
TCM0
SYMBOL
POSITION
NAME AND DESCRIPTION
TJC
CCR5.7
Transmit Japanese CRC6 Enable.
0 = use ANSI/AT&T/ITU CRC6 calculation (normal
operation)
1 = use Japanese standard JT–G704 CRC6 calculation
–
CCR5.6
Not Assigned. Must be set to zero when written.
–
CCR5.5
Not Assigned. Must be set to zero when written.
TCM4
CCR5.4
Transmit Channel Monitor Bit 4. MSB of a channel
decode that determines which transmit channel data will
appear in the TDS0M register. See Section 13 for details.
TCM3
CCR5.3
Transmit Channel Monitor Bit 3.
TCM2
CCR5.2
Transmit Channel Monitor Bit 2.
TCM1
CCR5.1
Transmit Channel Monitor Bit 1.
TCM0
CCR5.0
Transmit Channel Monitor Bit 0. LSB of the channel
decode.
相關(guān)PDF資料
PDF描述
DS21FF42N DATACOM, FRAMER, PBGA300
DS21FT44N DATACOM, FRAMER, PBGA300
DS21FT44 DATACOM, FRAMER, PBGA300
DS21Q352 DATACOM, PCM TRANSCEIVER, PBGA256
DS21Q354 DATACOM, PCM TRANSCEIVER, PBGA256
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21FF42+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer 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
DS21FF42N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 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
DS21FF42N+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer 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
DS21FF44 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer 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
DS21FF44N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 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
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