參數(shù)資料
型號: XRT86VL32_07
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): 169/174頁
文件大?。?/td> 903K
代理商: XRT86VL32_07
XRT86VL32
164
REV. V1.2.0
DUAL T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
3
E1 Arbitrary Enable
E1 Arbitrary Mode Enable
This bit is used to enable the Arbitrary Pulse Generators for shaping
the transmit pulse shape for E1 mode. If this bit is set to “1”, all 2
channels will be configured for the Arbitrary Mode. However, each
channel’s pulse shape is individually controlled by programming the
8 transmit pulse shape segments (channel registers 0x0Fn8 through
0x0FnF)
“0” = Disabled (Normal E1 Pulse Shape ITU G.703)
“1” = Arbitrary Pulse Enabled
2
RXMUTE
R/W
0
Receive Output Mute:
This bit permits the user to configure the Receive E1 Block to auto-
matically pull its Recovered Data Output pins to GND anytime (and
for the duration that) the Receive E1 LIU Block declares the LOS
defect condition.
In other words, if this feature is enabled, the Receive E1 LIU Block
will automatically “mute” the Recovered data that is being routed to
the Receive E1 Framer block anytime (and for the duration that) the
Receive E1 LIU Block declares the LOS defect condition.
0 – Disables the “Muting upon LOS” feature.
1 – Enables the “Muting upon LOS” feature.
N
OTE
:
The receive clock is not muted when this feature is enabled.
1
EXLOS
Extended LOS Enable:
This bit allows users to extend the number of zeros at the receive
input of each channel before RLOS is declared.
When Extended LOS is enabled, the Receive E1 LIU Block will
declare RLOS condition when it receives 4096 number of consecu-
tive zeros at the receive input.
When Extended LOS is disabled, the Receive E1 LIU Block will
declare RLOS condition when it receives 175 number of consecu-
tive zeros at the receive input.
0 = Disables the Extended LOS Feature.
1 = Enables the Extended LOS Feature.
0
ICT
R/W
0
In-Circuit-Testing Enable:
This bit allows users to tristate the output pins of all channels for in-
circuit testing purposes.
When In-Circuit-Testing is enabled, all output pins of the
XRT86VL32 are “Tri-stated”. When In-Circuit-Testing is disabled, all
output pins will resume to normal condition.
0 = Disables the In-Circuit-Testing Feature.
1 = Enables the In-Circuit-Testing Feature.
T
ABLE
133: LIU G
LOBAL
C
ONTROL
R
EGISTER
1 (LIUGCR1) H
EX
A
DDRESS
: 0
X
0FE1
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
相關(guān)PDF資料
PDF描述
XRT86VL32IB Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL34_07 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL34_1 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
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