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): 47/126頁
文件大?。?/td> 2127K
代理商: T9000
Lucent Technologies Inc.
47
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
T9000
8 Device Operation Control
8.1 Device Operation Register
Table 41. DOCR: Device Operation Control Register (0x50)
* Siemens is a trademark of Siemens Aktiengesellschaft.
Table 42. B1UP: B1-Channel Upstream Data from GCI to U-Interface (0x51)
Reg
DOCR
RESET
R/W
R/W
Default
Bit 7
Bit 6
BS_E
0
Bit 5
0
Bit 4
0
Bit 3
NT_LT
0
Bit 2
0
Bit 1
0
Bit 0
0
FORCE_SAI_STD
0
Bit #
7
Symbol
Name/Description
FORCE_SAI_STD
FORCE SAI Bit to Follow ETSI Standard.
Controls the value of the upstream SAI
bit, as may be required when conformance testing with a
Siemens
* K1404 U-inter-
face tester.
0: When this bit is set to 0, the SAI bit upstream remains high during the period
from RXINFO1 going low to RXINFO3 going high, so the
Siemens
K1404 will
not initiate U-only activation when TE-initiated activation is being tested.
1: When this bit is set to 1, the SAI bit remains low conforming to the ETSI ETR
080 standard.
Backswing Suppression Enable.
This bit enables the backswing suppression
feature on the S/T-interface. It is recommended that this bit be programmed to 0.
6
BS_E
0: Backswing suppression enabled.
1: Backswing suppression not used.
Reserved.
Program to 0.
NT or LT Operation of the NTN Device.
This bit selects the NT or LT operation of
the device. This bit defaults to 0, selecting NT mode. When programmed to 1, the
NTN device is in LT mode. When set to LT mode, GPIO2.6 is the input (regardless
of the GPDIR2 value) for the 8 kHz MTC signal.
Reserved.
Program to 0.
5—4
3
NT_LT
2—0
Reg
B1UP
RESET
R/W
R/W
Default
Bit 7
B1UP7
Bit 6
B1UP6
Bit 5
B1UP5
Bit 4
B1UP4
Bit 3
B1UP3
Bit 2
B1UP2
Bit 1
B1UP1
Bit 0
B1UP0
Bit #
7—0
Symbol
B1UP[7:0]
Name/Description
B1-Channel Upstream Data.
When DFR[U_FORCE_B1UP] = 1, DFR[B1_SEL] = 1, and
ECR0[LB1] = 0, the microcontroller can write into this register the content that the user
wants to be transferred on the upstream B1 channel from GCI to the U-interface.
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