參數(shù)資料
型號： XRT86VL34
廠商： Exar Corporation
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù)： 23/156頁
文件大?。?/td> 816K
代理商： XRT86VL34
XRT86VL34
18
REV. V1.2.0
QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
5-4
YEL[1:0]
R/W
00
(
Continued)
T
ABLE
5: A
LARM
G
ENERATION
R
EGISTER
(AGR) H
EX
A
DDRESS
: 0
X
n108
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
T
ABLE
7:
YELLOW
ALARM
FORMAT
WHEN
ONE
SECOND
RULE
IS
ENFORCED
YEL[1:0]
Y
ELLOW
A
LARM
F
ORMAT
00
Disable the transmission of yellow alarm
01
SF or N mode
:
RAI is transmitted as bit 2 = 0 (second MSB) in all DS0 data channel.
T1DM mode:
RAI is transmitted as Y-bit = 0 (6th bit in the SYNC byte).
ESF mode:
YEL[1:0] controls the format of RAI. When YEL[1:0] is set to’01’, RAI
is transmitted as 255 patterns of 1111_1111_0000_0000 on the 4-
kbit/s data link (M1-M12) (approximately 1 second).
ALARM_ENB (Bit 6 of this register) controls the duration of RAI as
described below:
1.
If ALARM_ENB bit is set ’high’ for a duration shorter or equal
to
the
time
required
1111_1111_0000_0000 on the 4-kbit/s data link (M1-M12), RAI
is transmitted for 255 patterns. (approximately 1 second)
2.
If ALARM_ENB bit is set ’high’ for a duration longer than the
time
required
to
transmit
1111_1111_0000_0000 on the 4-kbit/s data link (M1-M12), RAI
continues until ALARM_ENB bit is set ’low’.
3.
If ALARM_ENB forms another pulse during an alarm
transmission, it resets the pattern counter and extends the
RAI duration for another 255 patterns.(approximately 1
second)
N
OTE
:
A minimum of one second delay between termination of the
first RAI and the initiation of a subsequent RAI is enforced.
to
transmit
255
pattern
of
255
patterns
of
10
SF mode:
RAI is transmitted as a “1” in the Fs bit of frame 12 (This is RAI for J1
SF standard).
T1DM mode
:
RAI is transmitted as Y-bit = 0 (6th bit in the SYNC byte).
ESF mode
:
RAI is controlled by the duration of ALARM_ENB bit. This allows
continuous RAI of any length.
11
SF, N, and T1DM mode:
RAI format is the same as described above when YEL[1:0] is set
to’01’.
ESF mode:
RAI duration is the same as described above when YEL[1:0] is set
to’01’, except that format of RAI is transmitted as 255 patterns of
1111_1111_1111_1111 on the 4kbits/s data link bits (J1 ESF stan-
dard) instead of 255 patterns of 1111_1111_0000_0000.
相關(guān)PDF資料
PDF描述
XRT86VL34_2 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL34IB Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL38_2 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL38IB Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL38IB484 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT86VL34_07 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
XRT86VL34_1 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
XRT86VL34_2 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
XRT86VL34ES 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT86VL34IB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4 IND FULL DPLX FIFO TWO-FRAME, CAS, CCS RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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