参数资料
型号: DS21Q44T+
厂商: Maxim Integrated Products
文件页数: 54/105页
文件大小: 0K
描述: IC FRAMER ENHANCED E1 4X 128TQFP
标准包装: 72
控制器类型: E1 调帧器
接口: 并行/串行
电源电压: 2.97 V ~ 3.63 V
电流 - 电源: 75mA
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x20)
包装: 管件
DS21Q44
52 of 105
TC1 TO TC32: TRANSMIT CHANNEL REGISTERS (Address=60 to 7F Hex)
(for brevity, only channel one is shown; see Table 4-1 for other register address)
(MSB)
(LSB)
C7
C6
C5
C4
C3
C2
C1
C0
TC1 (60)
SYMBOL
POSITION
NAME AND DESCRIPTION
C7
TC1.7
MSB of the Code (this bit is transmitted first)
C0
TC1.0
LSB of the Code (this bit is transmitted last)
TCC1/TCC2/TCC3/TCC4: TRANSMIT CHANNEL CONTROL REGISTER
(Address=A0 to A3 Hex)
(MSB)
(LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
TCC1 (A0)
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
TCC2 (A1)
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
TCC3 (A2)
CH32
CH31
CH30
CH29
CH28
CH27
CH26
CH25
TCC4 (A3)
SYMBOL
POSITION
NAME AND DESCRIPTION
CH1 - 32
TCC1.0 - 4.7
Transmit Code Insertion Control Bits
0 = do not insert data from the TC register into the transmit data
stream
1 = insert data from the TC register into the transmit data
stream
11.2 Receive Side Code Generation
On the receive side, the Receive Channel Control Registers (RCC1/2/3/4) are used to determine which of
the 32 E1 channels off of the E1 line and going to the backplane should be overwritten with the code
placed in the Receive Channel Registers (RC1 to RC32). This method allows a different 8–bit code to be
placed into each of the 32 E1 channels.
RC1 TO RC32: RECEIVE CHANNEL REGISTERS (Address=80 to 9F Hex)
(for brevity, only channel one is shown; see Table 4-1 for other register address)
(MSB)
(LSB)
C7
C6
C5
C4
C3
C2
C1
C0
RC1 (80)
SYMBOL
POSITION
NAME AND DESCRIPTION
C7
RC1.7
MSB of the Code (this bit is sent first to the backplane)
C0
RC1.0
LSB of the Code (this bit is sent last to the backplane)
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