XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 143
XRT94L33IB-L
Manufacturer Part Number
XRT94L33IB-L
Description
IC MAPPER DS3/E3/STS-1 504TBGA
Manufacturer
Exar Corporation
Specifications of XRT94L33IB-L
Applications
Network Switches
Interface
Bus
Voltage - Supply
3.14 V ~ 3.47 V
Package / Case
504-LBGA
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XRT94L33IB-L
Manufacturer:
Exar Corporation
Quantity:
10 000
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3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Operation Channel Interrupt Indicator – Receive STS-3c/SONET POH Processor Block (Address =
0x0120)
If a given bit-field is set to “1”, then the “Receive STS-3c/SONET POH Processor” block, (within the
corresponding channel) is generating an interrupt request. Conversely, if a given bit-field is set to “0”, then
the “Receive STS-3c/SONET POH Processor” blocks (within the corresponding channel) is not generating an
interrupt request.
The “Operation Channel Interrupt Indicator” registers for the other functional blocks are virtually identical to
that presented for the “Receive STS-3c/SONET POH Processor” block.
STEP 4 – PROCEED TO READ OUT THE APPROPRIATE “SOURCE-LEVEL” INTERRUPT STATUS
REGISTERS; CORRESPONDING TO THE “INTERRUPTING” CHANNEL.
Now that the “interrupting” functional block and channel has been identified, the µP/µC should now go off and
read out the contents of the appropriate “source-level” interrupt status register.
Table 10 presents a list of “functional blocks” and the corresponding “Source-Level” interrupt status registers
that the µC/µP should read, once the “interrupting” channel (N) has been identified.
B
R/O
IT
0
7
Unused
B
R/O
IT
0
6
B
R/O
IT
0
5
Receive STS-
Processor
Indication
Channel
Interrupt
3c POH
Block –
Status
B
R/O
IT
0
4
Unused
B
R/O
IT
0
3
143
Indication Status
Block - Channel
POH Processor
2 Interrupt
Receive
SONET
B
R/O
IT
0
2
Indication Status
Block - Channel
POH Processor
1 Interrupt
Receive
SONET
B
R/O
IT
0
1
Block - Channel
POH Processor
XRT94L33
0 Interrupt
Indication
Receive
SONET
Status
B
R/O
Rev.1.2.0.
IT
0
0
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