參數(shù)資料
型號(hào): T7121-PL2
英文描述: T7121 HDLC Interface for ISDN
中文描述: T7121的HDLC接口用于ISDN
文件頁(yè)數(shù): 50/68頁(yè)
文件大?。?/td> 685K
代理商: T7121-PL2
50
Lucent Technologies Inc.
Data Sheet
April 1997
T7121 HDLC Interface for ISDN (HIFI-64)
Timing Characteristics
(continued)
5-5045
Figure 19. FE = 1, CLKXI = 0, CLKRI = 1
5-5046
Figure 20. FE = 1, CLKXI = 1, CLKRI = 1
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
FRAME SYNC SAMPLED ON THIS EDGE OF CLKX/CLKR
FIRST BIT TRANSMITTED
CLKX/CLKR
FS
(FE = 1)
DXA/B
(CLKXI = 0)
TSCA
DRA/B
(CLKRI = 1)
3-STATE
FIRST BIT SAMPLED
DON'T CARE
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
FRAME SYNC SAMPLED ON THIS EDGE OF CLKX/CLKR
FIRST BIT TRANSMITTED
CLKX/CLKR
FS
(FE = 1)
DXA/B
(CLKXI = 1)
TSCA
DRA/B
(CLKRI = 1)
3-STATE
FIRST BIT SAMPLED
DON'T CARE
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