參數(shù)資料
型號： DS2196LN
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PQFP100
封裝： LQFP-100
文件頁數(shù)： 5/160頁
文件大?。?/td> 559K
代理商： DS2196LN
DS2196
102 of 160
Table 16-2: Error Insertion examples
Value
Write
Read
000h
do not create any
errors
no
errors
left
to
be
inserted
001h
create a single error
1 error left to be inserted
002h
create 2 errors
2 errors left to be inserted
3FFh
create 1023 errors
1023 errors left to be
inserted
NOEL1A: NUMBER of ERRORS LEFT 1 FRAMER A (Address = 83 Hex)
NOEL1B: NUMBER of ERRORS LEFT 1 FRAMER B (Address = 88 Hex)
NOEL2A: NUMBER of ERRORS LEFT 2 FRAMER A (Address = 84 Hex)
NOEL2B: NUMBER of ERRORS LEFT 2 FRAMER B (Address = 89 Hex)
(MSB)
(LSB)
C7
C6
C5
C4
C3
C2
C1
C0
NOEL1
––––––
C9
C8
NOEL2
SYMBOL
POSITION
NAME AND DESCRIPTION
C9
NOEL2.1
MSB of the 10–bit Number of Errors Left Counter
C0
NOEL1.0
LSB of the 10–bit Number of Errors Left Counter
Number Of Errors Left Registers. The Host can read the NOEL registers at any time (to determine
how many errors are left to be inserted) by toggling the RNOE bit in the Error Rate Control registers
(ERCA and ERCB) from a 0 to a 1. After the RNOE bit is toggled, the Host may read the NOEL registers
after waiting at least 972 ns (1.5 clock periods).
17
HDLC CONTROLLER
The DS2196 has an enhanced HDLC controller configurable for use with the Facilities Data Link or
DS0s. There are 64 byte buffers in both the transmit and receive paths. The user can select any DS0 or
multiple DS0s as well as any specific bits within the DS0(s) to pass through the HDLC controller. See
Figure 21-7 for details on formatting the transmit side. Note that TBOC.6 = 1 and TDC1.7 = 1 cannot
exist without corrupting the data in the FDL. For use with the FDL, see section 18. See Table 17-1 for
configuring the transmit HDLC controller.
Table 17-1: TRANSMIT HDLC CONFIGURATION
Function
TBOC.6
TDC1.7
TCR1.2
DS0(s)
0
1
1 or 0
FDL
101
Disable
0
1 or 0
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DS2196LN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Dual Framer LIU 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS219T 功能描述:烙鐵 DESOLDERING HEAD RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
DS21E352 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21E352N 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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