參數資料
型號: XRT86VL34_2
廠商: Exar Corporation
元件分類: 通信及網絡
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: 40/156頁
文件大?。?/td> 816K
代理商: XRT86VL34_2
XRT86VL34
35
QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
REV. V1.2.0
1
SB_ENB(1)
R/w
0
Receive Slip Buffer Mode Select
These bits select modes of operation for the receive slip buffer. These two
bits also select the direction of RxSERCLK and RxSYNC in base clock rate
(2.048MHz). The following table shows the corresponding slip buffer modes
as well as the direction of the RxSYNC/RxSERCLK according to the setting
of these two bits.
N
OTE
:
Users must make sure that the RxSerClk input pin is synchronized to
the Recovered Clock signal for this particular channel to prevent any
buffer slips from occurring.
0
SB_ENB(0)
R/W
1
T
ABLE
20: FIFO L
ATENCY
R
EGISTER
(FFOLR) H
EX
A
DDRESS
: 0
X
n117
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
7-5
Reserved
-
-
Reserved
4-0
Rx Slip Buffer FIFO
Latency[4:0]
R/W
00100
Receive Slip Buffer FIFO Latency[4:0]:
These bits permit the user to specify the “Receive Data” Latency (in
terms of RxSerClk_n clock periods), whenever the Receive Slip
Buffer has been configured to operate in the “FIFO” Mode.
N
OTE
:
These bits are only active if the Receive Slip Buffer has been
configured to operate in the FIFO Mode.
T
ABLE
19: S
LIP
B
UFFER
C
ONTROL
R
EGISTER
(SBCR) H
EX
A
DDRESS
: 0
X
n116
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
SB_ENB
[1:0]
R
ECEIVE
S
LIP
B
UFFER
M
ODE
S
ELECT
D
IRECTION
OF
R
X
SERCLK
D
IRECTION
OF
R
X
SYNC
00/11
Receive Slip Buffer is
bypassed
Output
Output
01
Slip Buffer Mode
Input
Depends on the
setting of SB_SDIR
(bit 2 of this register)
If SB_SDIR = 0:
RxSYNC = Output
If SB_SDIR = 1:
RxSYNC = Input
10
FIFO Mode.
FIFO data latency
can be programmed
by the 'FIFO Latency
Register' (Address =
0xn117).
Input
Depends on the
setting of SB_SDIR
(bit 2 of this register)
If SB_SDIR = 0:
RxSYNC = Output
If SB_SDIR = 1:
RxSYNC = Input
相關PDF資料
PDF描述
XRT86VL34IB Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
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XRT86VL38 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
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