XRT79L71_1 Datasheet, PDF (78/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
REV. 1.0.0
BIT NUMBER
NAME
1
Transmit DS3/E3 Framer
Block Interrupt Enable
0
One Second Interrupt
TYPE
R/W
R/W
DESCRIPTION
Transmit DS3/E3 Framer Block Interrupt Enable:
This READ/WRITE bit-field permits the user to enable or disable
the Transmit DS3/E3 Framer block for Interrupt Generation. If
the user enables the Transmit DS3/E3 Framer block (for Inter-
rupt Generation) at the block level, the user still needs to enable
the interrupts at the Source level, in order for these interrupts to
be enabled
However, if the user disables the Transmit DS3/E3 Framer block
(for Interrupt Generation) at the Block Level, then ALL Transmit
DS3/E3 Framer block -related interrupts are disabled.
0 - Transmit DS3/E3 Framer block is Disabled for Interrupt Gen-
eration.
1 - Transmit DS3/E3 Framer block is Enabled (at the Block
Level) for Interrupt Generation.
One Second Interrupt Enable:
This READ/WRITE bit-field permits the user to enable or disable
the One-Second Interrupt. If the user enables this interrupt, then
the XRT79L71 will generate an interrupt at one second intervals.
0 - One Second Interrupt is disabled.
1 - One Second Interrupt is enabled.
Framer Block Interrupt Status Register (Address = 0x1105)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Receive
DS3/E3
Framer
Block Inter-
rupt Status
Receive
PLCP
Processor
Block
Interrupt
Status
Unused
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
BIT 2
R/O
0
BIT 1
BIT 0
Transmit
DS3/E3
Framer
Block Inter-
rupt Status
One Second
Interrupt
R/O
RUR
0
0
BIT NUMBER
NAME
7
Receive DS3/E3 Framer
Block Interrupt Status
TYPE
R/O
DESCRIPTION
Receive DS3/E3 Framer Block Interrupt Status:
This READ-ONLY bit-field indicates whether or not a Receive
DS3/E3 Framer Block-related interrupt is requesting interrupt
service.
0 - The Receive DS3/E3 Framer block is NOT requesting any
interrupt service.
1 - The Receive DS3/E3 Framer block is requesting interrupt
service.
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