参数资料
型号: DS21Q44T+
厂商: Maxim Integrated Products
文件页数: 72/105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
69 of 105
RDC2: RECEIVE HDLC DS0 CONTROL REGISTER 2 (Address=B9 Hex)
(MSB)
(LSB)
RDB8
RDB7
RDB6
RDB5
RDB4
RDB3
RDB2
RDB1
SYMBOL
POSITION
NAME AND DESCRIPTION
RDB8
RDC2.7
DS0 Bit 8 Suppress Enable. MSB of the DS0. Set to one to
stop this bit from being used.
RDB7
RDC2.6
DS0 Bit 7 Suppress Enable. Set to one to stop this bit from
being used.
RDB6
RDC2.5
DS0 Bit 6 Suppress Enable. Set to one to stop this bit from
being used.
RDB5
RDC2.4
DS0 Bit 5 Suppress Enable. Set to one to stop this bit from
being used.
RDB4
RDC2.3
DS0 Bit 4 Suppress Enable. Set to one to stop this bit from
being used.
RDB3
RDC2.2
DS0 Bit 3 Suppress Enable. Set to one to stop this bit from
being used.
RDB2
RDC2.1
DS0 Bit 2 Suppress Enable. Set to one to stop this bit from
being used.
RDB1
RDC2.0
DS0 Bit 1 Suppress Enable. LSB of the DS0. Set to one to
stop this bit from being used.
TDC1: TRANSMIT HDLC DS0 CONTROL REGISTER 1 (Address = BA Hex)
(MSB)
(LSB)
THE
TSaDS
TDS0M
TD4
TD3
TD2
TD1
TD0
SYMBOL
POSITION
NAME AND DESCRIPTION
THE
TDC1.7
Transmit HDLC Enable.
0 = disable HDLC controller (no data inserted by HDLC
controller into the transmit data stream)
1 = enable HDLC controller to allow insertion of HDLC data
into either the Sa position or multiple DS0 channels as defined
by TDC1 (see bit definitions below).
TSaDS
TDC1.6
Transmit Sa Bit / DS0 Select. This bit is ignored if TDC1.7 is
set to zero.
0 = route Sa bits from the HDLC controller. TD0 to TD4
defines which Sa bits are to be routed. TD4 corresponds to Sa4,
TD3 to Sa5, TD2 to Sa6, TD1 to Sa7 and TD0 to Sa8.
1 = route DS0 channels from the HDLC controller. TDC1.5 is
used to determine how the DS0 channels are selected.
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