TABLE
參數(shù)資料
型號(hào)： XRT83VL38IB-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 62/95頁(yè)
文件大?。?/td> 0K
描述： IC LIU SH T1/E1/J1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝： 84
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 8/8
規(guī)程： E1
電源電壓： 3.14 V ~ 3.47 V
安裝類型： 表面貼裝
封裝/外殼： 225-BGA
供應(yīng)商設(shè)備封裝： 225-BGA（19x19）
包裝： 托盤
其它名稱： 1016-1481
XRT83VL38IB-F-ND
XRT83VL38
61
REV. 1.0.1
OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
TABLE 25: MICROPROCESSOR REGISTER #2, BIT DESCRIPTION
REGISTER ADDRESS
00000010
00010010
00100010
00110010
01000010
01010010
01100010
01110010
CHANNEL_n
CHANNEL_0
CHANNEL_1
CHANNEL_2
CHANNEL_3
CHANNEL_4
CHANNEL_5
CHANNEL_6
CHANNEL_7
FUNCTION
REGISTER
TYPE
RESET
VALUE
BIT #
NAME
D7
INVQRSS_n Invert QRSS Pattern: When TQRSS is active, Writing a “1” to
this bit inverts the polarity of transmitted QRSS pattern. Writing
a “0” sends the QRSS pattern with no inversion.
R/W
0
D6
TXTEST2_n
Transmit Test Pattern bit 2
: This bit together with TXTEST1
and TXTEST0 are used to generate and transmit test patterns
according to the following table:
TDQRSS (Transmit/Detect Quasi-Random Signal):
This
condition when activated enables Quasi-Random Signal
Source generation and detection for the selected channel
number n. In a T1 system QRSS pattern is a 220-1 pseudo-
random bit sequence (PRBS) with no more than 14 consecu-
tive zeros. In a E1 system, QRSS is a 215-1 PRBS pattern.
TAOS (Transmit All Ones):
Activating this condition enables
the transmission of an All Ones Pattern from the selected
channel number n.
TLUC (Transmit Network Loop-Up Code):
Activating this
condition enables the Network Loop-Up Code of “00001” to be
transmitted to the line for the selected channel number n.
When Network Loop-Up code is being transmitted, the
XRT83VL38 will ignore the Automatic Loop-Code detection
and Remote Loop-Back activation (NLCDE1 =“1”, NLCDE0
=“1”, if activated) in order to avoid activating Remote Digital
Loop-Back automatically when the remote terminal responds
to the Loop-Back request.
TLDC (Transmit Network Loop-Down Code):
Activating this
condition enables the network Loop-Down Code of “001” to be
transmitted to the line for the selected channel number n.
R/W
0
D5
TXTEST1_n
Transmit Test pattern bit 1:
See description of bit D6 for the
function of this bit.
R/W
0
1
0
1
X
0
No Pattern
TDQRSS
TAOS
TLUC
Test Pattern
TLDC
TXTEST1
TXTEST0
TXTEST2
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