XRT72L13 Datasheet, PDF (98/370 Pages) Exar Corporation – M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

XRT72L13 MULTIPLEXER/FRAMER IC
REV. 1.0.6
2.3.2.6 Block Interrupt Enable Register
BLOCK INTERRUPT ENABLE REGISTER (ADDRESS = 0X04)
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PRELIMINARY
BIT 7
Rx DS3
Interrupt
Enable
R/W
0
BIT 6
Not Used
BIT 5
Not Used
R/O
R/O
0
0
BIT 4
M13
Interrupt
Enable
R/W
0
BIT 3
Not Used
BIT 2
Not Used
R/O
R/O
0
0
BIT 1
Tx DS3
Interrupt
Enable]
R/W
0
BIT 0
One
Second
Interrupt
Enable]
R/W
0
Bit 7 - Rx DS3 Interrupt Enable
This “Read/Write” bit-field permits the user to enable
or disable all “Receive DS3 Framer” related interrupts
(within the XRT72L13) at the “Block Level”.
Setting this bit-field to “0” disables all “Receive DS3
Framer” related interrupts within the XRT72L13 M13
device.
Setting this bit-field to “1” enables all “Receive DS3
Framer” related interrupts (within the XRT72L13 M13
device) at the “Block Level”.
NOTE: Setting this bit-field to “1” does not enable all
“Receive DS3 Framer” related interrupts. Each of these
interrupts can still be disabled at the “Source” Level. How-
ever, setting this bit-field to “0” does disable all “Receive
DS3 Framer” related interrupt.
Bit 4 - M13 Interrupt Enable
This “Read/Write” bit-field permits the user to enable-
or disable all “M13 Multiplexer” related interrupts
(within the XRT72L13) at the “Block Level.
Setting this bit-field to “0” disables all “M13 Multiplex-
er” related interrupts within the XRT72L13 M13 de-
vice.
Setting this bit-field to “1” disables all “M13 Multiplex-
er” related interrupts (within the XRT72L13 M13 de-
vice) at the “Block Level”.
Bit 1 - Tx DS3 Interrupt Enable
This “Read/Write” bit-field permits the user to enable
or disable the “Transmit DS3 Framer” related inter-
rupts (within the XRT72L13) at the Block Level.
Setting this bit-field to “0” disables all “Transmit DS3
Framer” related interrupts within the XRT72L13 M13
device.
Setting this bit-field to “1” disables all “Transmit DS3
Framer” related interrupts (within the XRT72L13 M13
device) at the “Block Level”.
Bit 0 - One Second Interrupt Enable
This “Read/Write” bit-field permits the user to enable
or disable the “One Second” Interrupt, within the
XRT72L13. If this interrupt is enabled then the
XRT72L13 will generate interrupts to the Micropro-
cessor/Microcontroller at “one-second” intervals.
Setting this bit-field to “0” disables the “One Second”
interrupt. Conversely, setting this bit-field to “1” en-
ables the “One Second” interrupt.
2.3.2.7 Block Interrupt Status Register
BLOCK INTERRUPT STATUS REGISTER (ADDRESS = 0X05)
BIT 7
Rx DS3
Interrupt
Status
R/O
0
BIT 6
Not Used
BIT 5
Not Used
R/O
R/O
0
0
BIT 4
M13
Interrupt
Status
R/O
0
BIT 3
Not Used
BIT 2
Not Used
R/O
R/O
0
0
BIT 1
Tx DS3
Interrupt
Status
R/O
0
BIT 0
One
Second
Interrupt
Status
RUR
0
Bit 7 - Rx DS3 Interrupt Status
This “Read-Only” bit-field indicates whether or not a
“Receive DS3 Framer” related Interrupt has been re-
quested and is awaiting service.
If this bit-field is set to “0”, then there are no “Receive
DS3 Framer” related interrupts awaiting service.
Conversely, if this bit-field is set to “1”, then there is at
least one “Receive DS3 Framer” related interrupt,
awaiting service.
Bit 4 - M13 Multiplexer Interrupt Status
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