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XRT72L13 Datasheet(PDF) 158 Page - Exar Corporation

Part # XRT72L13
Description  M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
PDF  370 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT72L13 Datasheet(HTML) 158 Page - Exar Corporation

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XRT72L13
MULTIPLEXER/FRAMER IC
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PRELIMINARY
REV. 1.0.6
146
1. The “Loop-back Request Status” for DS2 Chan-
nel 2 has transitioned from the active to the inac-
tive state.
2. The Loop-back Request Status” for DS2 Channel
2 has transition from the inactive to the active
state.
Bit 0 - Change in Loop-back Request Interrupt
Status, M23 # 1.
This “Reset-upon-Read” bit-field indicates whether or
not there has been a change in the “Loop-back Re-
quest Status” for DS2 Channel # 1.
This bit-field will be set to “0” if there has been no
change in the “Loop-back Request Status” for DS2
Channel # 1. Conversely, this bit-field will set to “1”
anytime there has been a change in the “Loop-back
Request Status” for DS2 Channel # 1.
NOTE: This bit-field will be asserted in response to either of
the following conditions.
1. The “Loop-back Request Status” for DS2 Chan-
nel 1 has transitioned from the active to the inac-
tive state.
2. The Loop-back Request Status” for DS2 Channel
1 has transition from the inactive to the active
state.
2.3.2.98 M23 RxDS2 Loopback Request Status
Register.
Bit 6 - Loop-back Request Status - M23 # 7
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 7.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 7 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 7 is currently inactive.
Bit 5 - Loop-back Request Status - M23 # 6
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 6.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 6 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 6 is currently inactive.
Bit 4 - Loop-back Request Status - M23 # 5
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 5.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 5 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 5 is currently inactive.
Bit 3 - Loop-back Request Status - M23 # 4
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 4.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 4 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 4 is currently inactive.
Bit 2 - Loop-back Request Status - M23 # 3
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 3.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 3 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 3 is currently inactive.
Bit 1 - Loop-back Request Status - M23 # 2
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 2.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 2 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 2 is currently inactive.
Bit 0 - Loop-back Request Status - M23 # 1
This “Read-Only” bit-field reflect the current Loop-
back Request state of M23 # 1.
This bit-field will be set to “1” if the “Loop-back Re-
quest” for M23 # 1 is currently active.
Conversely, this bit-field will be set to “0” if the “Loop-
back Request” for M23 # 1 is currently inactive.
M23 RXDS2 LOOP-BACK REQUEST STATUS - INTERRUPT REGISTER (ADDRESS = 0X92)
BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0
Unused
Loop-back
Request
Status M23
# 7
Loop-back
Request
Status M23
# 6
Loop-back
Request
Status M23
# 5
Loop-back
Request
Status M23
# 4
Loop-back
Request
Status M23
# 3
Loop-back
Request
Status M23
# 2
Loop-back
Request
Status M23
# 1
RO
RO
RO
RO
RO
RO
RO
RO
00
000
000



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