參數(shù)資料
型號(hào): T7630
英文描述: T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)
中文描述: T7630雙T1/E1的5.0V的短途終結(jié)者(終結(jié)者-Ⅱ)
文件頁(yè)數(shù): 144/210頁(yè)
文件大?。?/td> 3075K
代理商: T7630
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Preliminary Data Sheet
October 2000
T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator II)
144
L Lucent Technologies Inc.
Line Interface Alarm Register
Alarm Status Register (LIU_REG0)
Bits 0—3 of this register represent the status of the line interface receiver and transmitter alarms ALOS, DLOS,
TDM, and LOTC. The alarm indicators are active-high and automatically clear on a microprocessor read if the cor-
responding alarm conditions no longer exist.
*
However, persistent alarm conditions will cause these bits to remain
set even after a microprocessor read. This is a read-only register.
Table 77. LIU Alarm Status Register (LIU_REG0) (400, A00)
Line Interface Alarm Interrupt Enable Register
Alarm Interrupt Enable Register (LIU_REG1)
The bits in the alarm interrupt enable register allow the user to selectively enable generation of an interrupt by each
channel alarm. The enable bits correspond to their associated alarm status bits in the alarm status register, LIU-
REG0. The interrupt enable function is active-high. When an enable bit is set, the corresponding alarm is enabled
to generate an interrupt. Otherwise, the alarm is disabled from generating an interrupt.
The enable function only impacts the ability to generate an interrupt signal. The proper alarm status will be
reflected in LIU_REG0 even when the corresponding enable bit is set to zero. Any other LIU behavior associated
with an alarm event will operate normally even if the interrupt is not enabled.
This is a read/write register
Table 78. LIU Alarm Interrupt Enable Register (LIU_REG1) (401, A01)
* See T7630 Device Advisory for signal timing requirements.
Bit
Symbol
ALOS
Description
0
Receive Analog Loss of Signal.
A 1 indicates the LIU receive channel has detected
an analog loss of signal condition/event.
Receive Digital Loss of Signal.
A 1 indicates the LIU receive channel has detected a
digital loss of signal condition/event.
Transmit Driver Monitor Alarm.
A 1 indicates the LIU transmit channel has detected
a transmit driver monitor alarm condition/event.
Transmit Loss of Transmit Clock Alarm.
A 1 indicates the LIU transmit channel has
detected a loss of transmit clock condition/event.
Reserved.
1
DLOS
2
TDM
3
LOTC
4—7
Bit
0
Symbol
ALOSIE
Description
Enable Analog Loss of Signal Interrupt.
A 1 enables an interrupt in response to
ALOS alarm.
Enable Digital Loss of Signal Interrupt.
A 1 enables an interrupt in response to
DLOS alarm.
Enable Transmit Driver Monitor Interrupt.
A 1 enables an interrupt in response to
TDM alarm.
Enable loss of Transmit Clock Interrupt.
A 1 enables an interrupt in response to
LOTC alarm.
Reserved.
Write to 0.
1
DLOSIE
2
TDMIE
3
LOTCIE
4—7
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