參數(shù)資料
型號: DS2196LN
廠商: DALLAS SEMICONDUCTOR
元件分類: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PQFP100
封裝: LQFP-100
文件頁數(shù): 153/160頁
文件大小: 559K
代理商: DS2196LN
DS2196
92 of 160
Table 15-1: BERT PATTERN SELECT OPTIONS
PS2
PS1
PS0
Pattern Definition
000
Pseudorandom 2E7 – 1
001
Pseudorandom 2E11 – 1
010
Pseudorandom 2E15 – 1
011
Pseudorandom Pattern QRSS. A 2
20 - 1 pattern with 14
consecutive zero restriction.
100
Repetitive Pattern
101
Alternating Word Pattern
110
Modified 55 Octet (Daly) Pattern The Daly pattern is a
repeating 55 octet pattern that is byte aligned into the active
DS0 timeslots. The pattern is defined in a ATIS (Alliance
for Telecommunications Industry Solutions) Committee T1
Technical Report Number 25 (November 1993).
111
Reserved
BC1: BERT Control Register 1 (Address = 41 Hex)
(MSB)
(LSB)
IESYNC
IEBED
IEOF
RPL3
RPL2
RPL1
RPL0
SYMBOL
POSITION
NAME AND DESCRIPTION
IESYNC
BC1.7
Change
of
Synchronization
Status
Interrupt
Enable.
Interrupt enable for Synchronizer Status (BIR.0)
0 = interrupt masked
1 = interrupt enabled
IEBED
BC1.6
Bit Error Detected Interrupt Enable. Interrupt enable for Bit
Error Detected (BIR.3)
0 = interrupt masked
1 = interrupt enabled
IEOF
BC1.5
Bit & Error Counter Overflow Interrupt Enable. Interrupt
enable for the BERT Bit Counter (BIR.2) and BERT Error
Counter (BIR.1) overflow.
0 = interrupt masked
1 = interrupt enabled
BC1.4
Not Assigned. Should be set to 0 when written to.
RPL3
BC1.3
Repetitive Pattern Length Bit 3 (RPL3). Refer to Table 15-2
for details.
RPL2
BC1.2
Repetitive Pattern Length Bit 2 (RPL2). Refer to Table 15-2
for details.
RPL1
BC1.1
Repetitive Pattern Length Bit 1 (RPL1). Refer to Table 15-2
for details.
RPL0
BC1.0
Repetitive Pattern Length Bit 0 (RPL0). Refer to Table 15-2
for details.
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