參數(shù)資料
型號： DS21FT42N
廠商： Maxim Integrated Products
文件頁數(shù)： 65/114頁
文件大?。?/td> 0K
描述： IC FRAMER T1 4X3 12CH IND 300BGA
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 40
控制器類型： T1 調(diào)幀器
接口： 并行/串行
電源電壓： 2.97 V ~ 3.63 V
電流 - 電源： 225mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 300-BBGA
供應(yīng)商設(shè)備封裝： 300-PBGA（27x27）
包裝： 管件
DS21FT42/DS21FF42
54 of 114
RDS0M: RECEIVE DS0 MONITOR REGISTER (Address=1F Hex)
(MSB)
(LSB)
B1
B2
B3
B4
B5
B6
B7
B8
SYMBOL
POSITION
NAME AND DESCRIPTION
B1
RDS0M.7
Receive DS0 Channel Bit 1. MSB of the DS0 channel (first
bit to be received).
B2
RDS0M.6
Receive DS0 Channel Bit 2.
B3
RDS0M.5
Receive DS0 Channel Bit 3.
B4
RDS0M.4
Receive DS0 Channel Bit 4.
B5
RDS0M.3
Receive DS0 Channel Bit 5.
B6
RDS0M.2
Receive DS0 Channel Bit 6.
B7
RDS0M.1
Receive DS0 Channel Bit 7.
B8
RDS0M.0
Receive DS0 Channel Bit 8. LSB of the DS0 channel (last
bit to be received).
13.
SIGNALING OPERATION
Each framer in the DS21Q42 contains provisions for both processor based (i.e., software based) signaling
bit access and for hardware based access. Both the processor based access and the hardware based access
can be used simultaneously if necessary. The processor based signaling is covered in Section 14.1 and
the hardware based signaling is covered in Section 14.2.
14.1 PROCESSOR BASED SIGNALING
The robbed–bit signaling bits embedded in the T1 stream can be extracted from the receive stream and
inserted into the transmit stream by each framer. There is a set of 12 registers for the receive side (RS1 to
RS12) and 12 registers on the transmit side (TS1 to TS12). The signaling registers are detailed below.
The CCR1.5 bit is used to control the robbed signaling bits as they appear at RSER. If CCR1.5 is set to
zero, then the robbed signaling bits will appear at the RSER pin in their proper position as they are
received. If CCR1.5 is set to a one, then the robbed signaling bit positions will be forced to a one at
RSER. If hardware based signaling is being used, then CCR1.5 must be set to zero.
RS1 TO RS12: RECEIVE SIGNALING REGISTERS (Address=60 to 6B Hex)
(MSB)
(LSB)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
RS1 (60)
A(16)
A(15)
A(14)
A(13)
A(12)
A(11)
A(10)
A(9)
RS2 (61)
A(24)
A(23)
A(22)
A(21)
A(20)
A(19)
A(18)
A(17)
RS3 (62)
B(8)
B(7)
B(6)
B(5)
B(4)
B(3)
B(2)
B(1)
RS4 (63)
B(16)
B(15)
B(14)
B(13)
B(12)
B(11)
B(10)
B(9)
RS5 (64)
B(24)
B(23)
B(22)
B(21)
B(20)
B(19)
B(18)
B(17)
RS6 (65)
A/C(8)
A/C(7)
A/C(6)
A/C(5)
A/C(4)
A/C(3)
A/C(2)
A/C(1)
RS7 (66)
A/C(16)
A/C(15)
A/C(14)
A/C(13)
A/C(12)
A/C(11)
A/C(10)
A/C(9)
RS8 (67)
A/C(24)
A/C(23)
A/C(22)
A/C(21)
A/C(20)
A/C(19)
A/C(18)
A/C(17)
RS9 (68)
B/D(8)
B/D(7)
B/D(6)
B/D(5)
B/D(4)
B/D(3)
B/D(2)
B/D(1)
RS10 (69)
B/D(16)
B/D(15)
B/D(14)
B/D(13)
B/D(12)
B/D(11)
B/D(10)
B/D(9)
RS11 6A)
B/D(24)
B/D(23)
B/D(22)
B/D(21)
B/D(20)
B/D(19)
B/D(18)
B/D(17)
RS12 6B)
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DS21FT44 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
DS21FT44+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4X3 E1 Framer E1 Framer 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
DS21FT44N 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
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