参数资料
型号: XRT75R12DIB
厂商: Exar Corporation
文件页数: 99/133页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 12CH 420TBGA
标准包装: 40
类型: 线路接口装置(LIU)
驱动器/接收器数: 12/12
规程: DS3,E3,STS-1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 420-LBGA 裸露焊盘
供应商设备封装: 420-TBGA(35x35)
包装: 托盘
XRT75R12D
64
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
TABLE 25: CHANNEL LEVEL INTERRUPT STATUS REGISTER - CR97 (ADDRESS LOCATION = 0X61)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Reserved Reserved
Channel 5
Interrupt Status
Channel 4
Interrupt Status
Channel 3
Interrupt Status
Channel 2
Interrupt Status
Channel 1
Interrupt Status
Channel 0
Interrupt Status
R/O
Register - CR97 (Address Location = 0x61)
BIT
NUMBER
NAME
TYPE
DESCRIPTION
7, 6
Reserved
5
4
3
2
1
0
Channel 5 Interrupt Status
Channel 4 Interrupt Status
Channel 3 Interrupt Status
Channel 2 Interrupt Status
Channel 1 Interrupt Status
Channel 0 Interrupt Status
R/O
Channel n Interrupt Status Bit:
This READ-ONLY bit-field indicates whether the XRT75R12D has a
pending Channel n-related interrupt that is awaiting service. The first
six channels are serviced through this location and the other six at
address 0xE1. These two registers are used by the Host to identify
the source channel of an active interrupt.
0 - Indicates that there is NO Channel n-related Interrupt awaiting ser-
vice.
1 - Indicates that there is at least one Channel n-related Interrupt
awaiting service. In this case, the user's Interrupt Service routine
should be written such that the Microprocessor will now proceed to
read out the contents of the Source Level Interrupt Status Register -
Channel n (Address Locations = 0xn2) to determine the exact source
of the interrupt request.
NOTE: Once this bit-field is set to "1", it will not be cleared back to "0"
until the user has read out the contents of the Source-Level
Interrupt Status Register bit, that corresponds to the interrupt
request channel.
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