TABLE 24: C
參數(shù)資料
型號(hào)： XRT73R12IB-L
廠商： Exar Corporation
文件頁(yè)數(shù)： 63/89頁(yè)
文件大?。?/td> 0K
描述： IC LIU E3/DS3/STS-1 12CH 420TBGA
標(biāo)準(zhǔn)包裝： 40
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 12/12
規(guī)程： DS3，E3，STS-1
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 420-LBGA 裸露焊盤
供應(yīng)商設(shè)備封裝： 420-TBGA（35x35）
包裝： 托盤
XRT73R12
63
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.0.3
TABLE 24: 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
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
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 XRT73R12 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 service.
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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