參數(shù)資料
型號(hào)： XRT83SH314_0610
廠商： Exar Corporation
英文描述： 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
中文描述： 14-CHANNEL的T1/E1/J1短途線路接口單元
文件頁(yè)數(shù)： 91/101頁(yè)
文件大?。?/td> 656K
代理商： XRT83SH314_0610
XRT83SH314
87
REV. 1.0.4
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
6.2.1
Clock Select Register
The input clock source is used to generate all the necessary clock references internally to the LIU. The
microprocessor timing is derived from a PLL output which is chosen by programming the Clock Select Bits in
register 0xE9h. Therefore, if the clock selection bits are being programmed, the frequency of the PLL output
will be adjusted accordingly. During this adjustment, it is important to "Not" write to any other bit location within
the same register while selecting the input/output clock frequency. For best results, register 0xE9h can be
broken down into two sub-registers with the MSB being bits D[7:4] and the LSB being bits D[3:0] as shown in
Figure 61
. Note: Bits D[7:6] are reserved.
F
IGURE
61. R
EGISTER
0
X
E9
H
S
UB
R
EGISTERS
Programming Examples:
Example 1:
Changing bits D[7:4]
If bits D[7:4] are the only values within the register that will change in a WRITE process, the microprocessor
only needs to initiate ONE write operation.
Example 2:
Changing bits D[3:0]
If bits D[3:0] are the only values within the register that will change in a WRITE process, the microprocessor
only needs to initiate ONE write operation.
Example 3:
Changing bits within the MSB and LSB
In this scenario, one must initiate TWO write operations such that the MSB and LSB do not change within ONE
write cycle. It is recommended that the MSB and LSB be treated as two independent sub-registers. One can
either change the clock selection (LSB) and then change bits D[5:4] (MSB) on the SECOND write, or vice-
versa. No order or sequence is necessary.
D0
D1
D2
D3
D4
D5
D6
D7
MSB
LSB
Clock Selection Bits
ALLT1/E1, CLKCNTL
相關(guān)PDF資料
PDF描述
XRT83SH314IB 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SH38 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SH38_0609 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SH38IB 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL216 16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83SH314ES 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 14 CHT1/E1LIU SH RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83SH314IB 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83SH314IB-F 功能描述:接口 - 專(zhuān)用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
XRT83SH314IB-SAK 制造商:Exar Corporation 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT 制造商:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SH38 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
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