参数资料
型号: DS2143QN/T&R
厂商: Maxim Integrated Products
文件页数: 24/44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
30 of 44
TNAF: TRANSMIT NON-ALIGN FRAME REGISTER (Address=21 Hex)
(MSB)
(LSB)
Si
1
A
Sa4
Sa5
Sa6
Sa7
Sa8
SYMBOL
POSITION
NAME AND DESCRIPTION
Si
TNAF.7
International Bit.
1
TNAF.6
Frame Non-Alignment Signal Bit.
A
TNAF.5
Remote Alarm.
Sa4
TNAF.4
Additional Bit 4.
Sa5
TNAF.3
Additional Bit 5.
Sa6
TNAF.2
Additional Bit 6.
Sa7
TNAF.1
Additional Bit 7.
Sa8
TNAF.0
Additional Bit 8.
12.0 LINE INTERFACE CONTROL FUNCTION
The DS2143 can control line interface units that contain serial ports. When Control Register Bytes 1 or 2
(CRB1, CRB2) are written to, the DS2143 will automatically write this data serially (LSB first) into the
line interface by creating a chip select, serial clock and serial data via the LI_ CS , LI_SCLK and LI_SDI
pins respectively. This control function is driven off of the RCLK and it must be present for proper
operation. Registers CRB1 and CRB2 can only be written to, they cannot be read from. Writes to these
registers must be at least 20
s apart. See Section 13 for timing information.
CRB1: CONTROL REGISTER BYTE 1 (Address=18 Hex)
CRB2: CONTROL REGISTER BYTE 2 (Address=19 Hex)
(MSB)
(LSB)
CR7
CR6
CR5
CR4
CR3
CR2
CR1
CR0
CRB1
CR7
CR6
CR5
CR4
CR3
CR2
CR1
CR0
CRB2
SYMBOL
POSITION
NAME AND DESCRIPTION
CR1
CRB1.0
LSB of Control Register Byte 1.
CR7
CRB2.7
MSB of Control Register Byte 2.
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