參數(shù)資料
型號: T9000
英文描述: ISDN Network Termination Node (NTN) Device
中文描述: ISDN網絡終端節(jié)點(新界北)設備
文件頁數(shù): 82/126頁
文件大小: 2127K
代理商: T9000
82
Lucent Technologies Inc.
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
T9000
10 GCI+ Interface Module
(continued)
10.7 GCI+ Register Set
(continued)
Table 86. GCDCI: GCI Downstream (Transmit) C/I Data (0x34)
Table 87. GCUCI: GCI Upstream (Receive) C/I Data (0x35)
Reg
GCDCI
RESET
R/W
R/W
Default
Bit 7
0
Bit 6
0
Bit 5
DCI6
Bit 4
DCI5
Bit 3
DCI4
Bit 2
DCI3
Bit 1
DCI2
Bit 0
DCI1
Bit #
7—6
5—0
Symbol
DCI[6:1]
Downstream Command/Indication Code.
The microcontroller writes the desired down-
stream (transmit) C/I code to this register. The code will be continuously transmitted until a new
code is written. The internal GCI controller will not read the new code from the GCDCI until the
current code has been transferred in at least two consecutive frames (see Section 10.4, C/I
Message Transfer).
Name/Description
Reserved.
Program to 0.
Reg
GCUCI
RESET
R/W
R/W
Default
Bit 7
0
Bit 6
0
Bit 5
UCI6
Bit 4
UCI5
Bit 3
UCI4
Bit 2
UCI3
Bit 1
UCI2
Bit 0
UCI1
Bit #
7—6
5—0
Symbol
UCI[6:1]
Name/Description
Reserved.
Program to 0.
Upstream Command/Indication Code.
Validated upstream (receive) C/I codes are stored
here. The validation circuit employs a double last look criterion, i.e., a new code is transferred
to the GCUCI register only if it is different from the previously loaded value and is received in
two consecutive GCI frames. The UCIC interrupt bit provides an indication that a new vali-
dated byte has been received.
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