参数资料
型号: DS2151QN
厂商: Maxim Integrated Products
文件页数: 30/60页
文件大小: 0K
描述: IC TXRX T1 1-CH 5V LP IND 44PLCC
标准包装: 1
功能: 单芯片收发器
接口: T1
电路数: 1
电源电压: 4.75 V ~ 5.25 V
电流 - 电源: 65mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 管件
包括: 警报检测器和发生器,CSU 回路代码发生器和检测器,DSX-1和CSU 线路补偿发生器
DS2151Q
36 of 60
10 CLOCK BLOCKING REGISTERS
The Receive Channel Blocking Registers (RCBR1/RCBR2/RCBR3) and the Transmit Channel Blocking
Registers (TCBR1/TCBR2/TCBR3) control the RCHBLK and TCHBLK pins, respectively. The
RCHBLK and TCHCLK pins are user-programmable outputs that can be forced either high or low during
individual channels. These outputs can be used to block clocks to a USART or LAPD controller in
Fractional T1 or ISDN-PRI applications. When the appropriate bits are set to a 1, the RCHBLK and
TCHCLK pins will be held high during the entire corresponding channel time. See the timing diagrams in
Section 14 for an example.
RCBR1/RCBR2/RCBR3: RECEIVE CHANNEL BLOCKING REGISTERS
(Address = 6C to 6E Hex)
(MSB)
(LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
RCBR1 (6C)
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
RCBR2 (6D)
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
RCBR3 (6E)
SYMBOL
POSITION
NAME AND DESCRIPTION
CH24
RCBR3.7
Receive Channel Blocking Registers
0 = force the RCHBLK pin to remain low during this
channel time
CH1
RCBR1.0
1 = force the RCHBLK pin high during this channel time
TCBR1/TCBR2/TCBR3: TRANSMIT CHANNEL BLOCKING REGISTERS
(Address = 32 to 34 Hex)
(MSB)
(LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
TCBR1 (32)
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
TCBR2 (33)
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
TCBR3 (34)
SYMBOL
POSITION
NAME AND DESCRIPTION
CH24
TCBR3.7
Transmit Channel Blocking Registers.
0 = force the TCHBLK pin to remain low during this
channel time
CH1
TCBR1.0
1 = force the TCHBLK pin high during this channel time
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