参数资料
型号: XRT86VL30IV80-F
厂商: Exar Corporation
文件页数: 77/175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
163
SINGLE T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. 1.0.1
TABLE 144: LIU GLOBAL CONTROL REGISTER 1 (LIUGCR1)
HEX ADDRESS: 0X0FE1
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7
TxSYNC(Sect 13)
R/W
0
G.703 Section 13 Transmit Pulse
When this bit is set to ’1’, the LIU transmitter will send a T1 syn-
chrnonous waveform as described in Section 13 of ITU-T G.703,
except with frequency equal to 1.544MHz. This register bit takes pri-
ority over every other LIU setting on the transmit path.
0 = T1 pulse specified in EQC bits
1 = Section 13 Synchronous Pulse at 1.544MHz
6
RxSYNC(Sect 13)
R/W
0
G.703 Section 13 Receiver
When this bit is set to ’1’, the CDR block of the receiver is configured
to accept a waveform as described in Section 13 of ITU-T G.703
except with frequency equal to 1.544MHz.
0 = Normal T1 (Equalizer Bit Settings - EQU[4:0])
1 = Section 13 Synchronous Pulse at 1.544MHz
NOTE:
1. For the RxSync(Sect 13) mode, bit 1 in this register
(0xFE1) must be set to ’1’ to enable ExLOS. This only
applies to the receiver.
NOTE: 2. If RLOS is required to meet G.775 in this mode (and not
ExLOS), then the CLOS[5:0] bits in Register 0x0F07 can be
used. See Register 0x0F07 for more details.
5-4
Gauge [1:0]
R/W
00
Wire Gauge Selector [1:0]:
This bit together with Guage0 bit (bit 4 within this register) are used
to select the wire gauge size as shown in the table below.
3
Reserved
This bit is not used
2
RXMUTE
R/W
0
Receive Output Mute:
This bit permits the user to configure the Receive T1 Block to auto-
matically pull its Recovered Data Output pins to GND anytime (and
for the duration that) the Receive T1 LIU Block declares the LOS
defect condition.
In other words, if this feature is enabled, the Receive T1 LIU Block
will automatically “mute” the Recovered data that is being routed to
the Receive T1 Framer block anytime (and for the duration that) the
Receive T1 LIU Block declares the LOS defect condition.
0 – Disables the “Muting upon LOS” feature.
1 – Enables the “Muting upon LOS” feature.
NOTE: The receive clock is not muted when this feature is enabled.
GAUGE1
0
1
0
GAUGE0
0
1
0
1
Wire Size
22 and 24 Gauge
26 Gauge
24 Gauge
22 Gauge
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