参数资料
型号: XRT83VSH314IB
厂商: Exar Corporation
文件页数: 17/80页
文件大小: 0K
描述: IC LIU SH T1/E1/J1 14CH 304TBGA
标准包装: 27
类型: 线路接口装置(LIU)
驱动器/接收器数: 14/14
规程: T1,E1,J1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 304-BBGA
供应商设备封装: 304-PBGA(31x31)
包装: 托盘
XRT83VSH314
21
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.1
3.2.3
General Alarm Detection and Interrupt Generation
The receive path detects RLOS, AIS, QRPD and FLS. These alarms can be individually masked to prevent the
alarm from triggering an interrupt. To enable interrupt generation, the Global Interrupt Enable (GIE) bit must be
set "High" in the appropriate global register. Any time a change in status occurs (it the alarms are enabled), the
interrupt pin will pull "Low" to indicate an alarm has occurred. Once the status registers have been read, the
INT pin will return "High". The status registers are Reset Upon Read (RUR). The interrupts are categorized in
a hierarchical process block. Figure 9 is a simplified block diagram of the interrupt generation process.
FIGURE 9. INTERRUPT GENERATION PROCESS BLOCK
NOTE: The interrupt pin is an open-drain output that requires a 10k
external pull-up resistor.
Global Interrupt
Enable (GIE="1")
Global Channel Interrupt Status
(Indicates Which Channel(s) Experienced a Change in
Status)
Individual Alarm Status Change
(Indicates Which Alarm Experienced a Change)
Individual Alarm Indication
(Indicates the Alarm Condition Active/Inactive)
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