参数资料
型号: DS2154LNA2+
厂商: Maxim Integrated Products
文件页数: 12/124页
文件大小: 0K
描述: IC TXRX E1 5V 100-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 90
类型: 收发器
驱动器/接收器数: 1/1
规程: E1
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-LQFP(14x14)
包装: 托盘
DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
109 of 124
Figure 18-14. DS21354/DS21554 Framer Synchronization Flowchart
FAS Resync
Criteria Met
Check for >=915
Out of 1000
CRC4 Word Errors
8ms
Time
Out
RLOS = 1
Set FASRC
(RIR.1)
CAS Resync
Criteria Met;
Set CASRC
(RIR.0)
FAS Search
FASSA = 1
FAS Sync
Criteria Met
FASSA = 0
CAS Sync
Criteria Met
CASSA = 0
If CRC4 is on
(CCR1.0 = 1)
RLOS = 1
If CAS is on
(CCR1.3 = 0)
Power Up
Increment CRC4
Sync Counter;
CRC4SA = 0
CRC4 Resync
Criteria Met
(RIR.2)
CAS Multiframe Search
(if enabled via CCR1.3)
CASSA = 1
CRC4 Multiframe Search
(if enabled via CCR1.0)
CRC4SA = 1
Resync if
RCR1.1 = 0
Check for FAS
Framing Error
(depends on RCR1.2)
Check for CAS
MF Word Error
Sync Declared
RLOS = 0
CRC4 Sync Criteria
Met; CRC4SA = 0;
Reset CRC4
Sync Counter
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