參數(shù)資料
型號(hào): DS26522DK
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 199/258頁(yè)
文件大?。?/td> 0K
描述: KIT DESIGN FOR DS26522
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
設(shè)計(jì)資源: DS26522DK Gerber Files
標(biāo)準(zhǔn)包裝: 1
主要目的: 電信,調(diào)幀器和線路接口裝置(LIU)
已用 IC / 零件: DS26522
已供物品: 板,CD
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DS26522 Dual T1/E1/J1 Transceiver
45 of 258
8.9.4.1 Transmit-Signaling Operation
There are two methods to provide transmit-signaling data. These are processor based (i.e., software based) or
hardware based. Processor based refers to access through the transmit-signaling registers, TS1:TS16, while
hardware based refers to using the TSIG pins. Both methods can be used simultaneously.
8.9.4.1.1 Processor-Based Signaling
In processor-based mode, signaling data is loaded into the transmit-signaling registers (TS1:TS16) via the host
interface. On multiframe boundaries, the contents of these registers are loaded into a shift register for placement in
the appropriate bit position in the outgoing data stream. The user can use the transmit multiframe interrupt in
Latched Status Register 1 (TLS1.2) to know when to update the signaling bits. The user need not update any
transmit-signaling register for which there is no change of state for that register.
Each transmit-signaling register contains the robbed-bit signaling (TCR1.4 in T1 mode) or TS16 CAS signaling
(TCR1.6 in E1 mode) for one time slot that will be inserted into the outgoing stream. Signaling data can be sourced
from the TS registers on a per-channel basis by using the software-signaling insertion enable registers,
In T1 ESF framing mode, there are four signaling bits per channel (A, B, C, and D). TS1:TS12 contain a full
multiframe of signaling data. In T1 D4 framing mode, there are only two signaling bits per channel (A and B). In T1
D4 framing mode, the framer uses A and B bit positions for the next multiframe. The C and D bit positions become
“don’t care” in D4 mode.
In E1 mode, TS16 carries the signaling information. This information can be in either CCS (common-channel
signaling) or CAS (channel-associated signaling) format. The 32 time slots are referenced by two different channel
number schemes in E1. In channel numbering, TS0 to TS31 are labeled channels 1 to 32. In phone channel
numbering, TS1 to TS15 are labeled channel 1 to channel 15, and TS17 to TS31 are labeled channel 15 to
channel 30.
8.9.4.2 Time Slot Numbering Schemes
TS
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Channel
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Phone
Channel
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
8.9.4.2.1 Hardware-Based Signaling
In hardware-based mode, signaling data is input via the TSIG pin. This signaling PCM stream is buffered and
inserted to the data stream being input at the TSER pin.
Signaling data can be input via the transmit hardware-signaling channel select (THSCS1) function. The framer can
be set up to take the signaling data presented at the TSIG pin and insert the signaling data into the PCM data
stream that is being input at the TSER pin. The user can control which channels are to have signaling data from the
TSIG pin inserted into them on a per-channel basis. The signaling insertion capabilities of the framer are available
whether the transmit-side elastic store is enabled or disabled. If the elastic store is enabled, the backplane clock
(TSYSCLK) can be either 1.544MHz or 2.048MHz.
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DS26522G 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 2-Port E1/T1/J1 Transceiver 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
DS26522G+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 2-Port E1/T1/J1 Transceiver 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
DS26522GN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 2-Port E1/T1/J1 Transceiver 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
DS26522GN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 2-Port E1/T1/J1 Transceiver 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
DS26524 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Quad T1/E1/J1 Transceiver