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參數(shù)資料
| 型號(hào)： | DS3160 |
| 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)： | 48/107頁 |
| 文件大?。?/td> | 592K |
| 代理商： | DS3160 |
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DS3160
48 of 107
Register Name:
Register Description:
Register Address:
CR2
Control Register 2
0Ch
Bit #
Name
Default
7
6
5
4
3
2
1
0
N/A
0
ALTAIS
0
MEIMS
0
CRCI
0
LOFI
0
FBEI
0
EXZI
0
BPVI
0
Bit #
Name
Default
15
14
13
12
11
X3
0
10
X2
0
9
8
A
0
IDLEFILL
0
LOSTHR1
0
LOSTHR0
0
RALMTH
0
X1
0
Note:
Bits that are underlined are read-only; all other bits are read-write.
Bit 0/Bipolar Violation Insert (BPVI).
A 0-to-1 transition on this bit causes a single BPV to be inserted
into the transmit data stream. Once this bit has been toggled from a 0 to a 1, the device waits for the next
occurrence of three consecutive 1’s to insert the BPV. This bit must be cleared and set again for a
subsequent error to be inserted. In the manual-error-insert mode (MEIMS = 1), errors are inserted on each
toggle of the FTMEI input signal as long as this bit is set high. When this bit is set low, no errors are
inserted.
Bit 1/Excessive Zero Insert (EXZI).
A 0-to-1 transition on this bit causes a single EXZ event to be
inserted into the transmit data stream. An EXZ event is defined as eight or more consecutive 0’s. Once
this bit has been toggled from a 0 to a 1, the device waits for the next possible B8ZS code word insertion
and it suppresses that code word from being inserted and, hence, this creates the EXZ event. This bit must
be cleared and set again for a subsequent error to be inserted. In the manual-error-insert mode
(MEIMS = 1), errors are inserted on each toggle of the FTMEI input signal as long as this bit is set high.
When this bit is set low, no errors are inserted.
Bit 2/Frame Bit-Error Insert (FBEI).
A 0-to-1 transition on this bit causes the transmit formatter to
generate a framing bit error. Once this bit has been toggled from a 0 to a 1, the device waits for the next
possible framing bit to insert the error. This bit must be cleared and set again for a subsequent error to be
inserted. In the manual-error-insert mode (MEIMS = 1), errors are inserted on each toggle of the FTMEI
input signal as long as this bit is set high. When this bit is set low, no errors are inserted. Only FAS bits
are corrupted by this function.
Bit 3/Loss-of-Frame Error Insert (LOFI).
A 0-to-1 transition on this bit causes the transmit formatter
to generate seven consecutive multiframes with errors in the FAS pattern. Once this bit has been toggled
from a 0 to a 1, the device waits for the next multiframe to begin error insertion. This bit must be cleared
and set again for a subsequent error to be inserted. In the manual-error-insert mode (MEIMS = 1), errors
are inserted on each toggle of the FTMEI input signal as long as this bit is set high. When this bit is set
low, no errors are inserted. Only FAS bits are corrupted by this function.
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