参数资料
型号: DS2143QN/T&R
厂商: Maxim Integrated Products
文件页数: 5/44页
文件大小: 0K
描述: IC CONTROLLER E1 5V LP 44-PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 500
控制器类型: E1 控制器
接口: 并行/串行
电源电压: 4.5 V ~ 5.5 V
电流 - 电源: 10mA
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: 带卷 (TR)
DS2143/DS2143Q
13 of 44
CCR: COMMON CONTROL REGISTER (Address=14 Hex)
(MSB)
(LSB)
LLB
THDB3
TG802
TCRC4
RSM
RHDB3
RG802
RCRC4
SYMBOL
POSITION
NAME AND DESCRIPTION
LLB
CCR.7
Local Loopback.
0 = loopback disabled.
1 = loopback enabled.
THDB3
CCR.6
Transmit HDB3 Enable.
0 = HDB3 disabled.
1 = HDB3 enabled.
TG802
CCR.5
Transmit G.802 Enable. See Section 13 for details.
0 = do not force TCHBLK high during bit 1 of timeslot 26.
1 = force TCHBLK high during bit 1 of timeslot 26.
TCRC4
CCR.4
Transmit CRC4 Enable.
0 = CRC4 disabled.
1 = CRC4 enabled.
RSM
CCR.3
Receive Signaling Mode Select.
0 = CAS signaling mode.
1 = CCS signaling mode.
RHDB3
CCR.2
Receive HDB3 Enable.
0 = HDB3 disabled.
1 = HDB3 enabled.
RG802
CCR.1
Receive G.802 Enable. See Section 13 for details.
0 = do not force RCHBLK high during bit 1 of timeslot 26
1 = force RCHBLK high during bit 1 of timeslot 26.
RCRC4
CCR.0
Receive CRC4 Enable.
0 = CRC4 disabled.
1 = CRC4 enabled.
LOCAL LOOPBACK
When CCR.7 is set to a 1, the DS2143 will enter a Local LoopBack (LLB) mode. This loopback is useful
in testing and debugging applications. In LLB, the DS2143 will loop data from the transmit side back to
the receive side. This loopback is synonymous with replacing the RCLK input with the TCLK signal, and
the RPOS/RNEG inputs with the TPOS/TNEG outputs. When LLB is enabled, the following will occur:
1. data at RPOS and RNEG will be ignored;
2. all receive side signals will take on timing synchronous with TCLK instead of RCLK;
3. all functions are available.
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