参数资料
型号: XRT86VL30IV80-F
厂商: Exar Corporation
文件页数: 89/175页
文件大小: 0K
描述: IC FRAMR/LIU T1/E1/J1 QD 80LQFP
标准包装: 90
控制器类型: T1/E1/J1 调帧器,LIU
电源电压: 3.3V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(12x12)
包装: 托盘
其它名称: 1016-1486
XRT86VL30IV80-F-ND
XRT86VL30
15
SINGLE T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. 1.0.1
3
FASTSYNC
R/W
0
Faster Sync Algorithm
This bit is used to specify one of the synchronization criteria that the
Receive T1 Framer block employs. If this “Faster Sync Algorithm” is
enabled, the Receive T1 Framer Block will declare synchronization
earlier. The table below specifies the number of consecutive frames
with correct F-bits that the T1 Receive framer must receive in order
to declare “SYNC” when FASTSYNC is enabled or disabled.
0 - Disables FASTSYNC feature.
1 - Enables FASTSYNC feature.
2-0
FSl[2:0]
R/W
000
T1 Framing Mode Select [2:0]
These three bits permit the user to select the exact T1 framing format
that the channel is to operate in.
Bit 2 is MSB and Bit 0 is LSB. The following table shows the five dif-
ferent framing formats that can be selected by configuring these
three bits accordingly.
NOTE: Changing Framing formats 'on the fly' will cause the Receive
T1 Framer block to undergo a “Reframe” event.
TABLE 5: FRAMING SELECT REGISTER (FSR)
HEX ADDRESS: 0X0107
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
Framing
FastSync
= 0
FastSync
= 1
ESF
96
48
SF
48
24
N
48
24
SLC 96
48
24
Framing
FS[2]
FS[1]
FS[0]
ESF
0
X
SF
1
0
1
N
1
0
T1DM
1
SLC
96
1
0
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