參數(shù)資料
型號: T9000
英文描述: ISDN Network Termination Node (NTN) Device
中文描述: ISDN網(wǎng)絡(luò)終端節(jié)點(新界北)設(shè)備
文件頁數(shù): 74/126頁
文件大小: 2127K
代理商: T9000
74
Lucent Technologies Inc.
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
T9000
10 GCI+ Interface Module
(continued)
10.3 GCI-NT Mode (GCCF[GMODE(1:0)] = 00)
(continued)
5-6721 (F)
1. Not an output. Shown only for reference.
Note: GCCF[GMODE] = 00 (GCI-NT); DCL = 512 kHz; data rate = 256 kHz.
Figure 16. GCI-NT Frame Structure
Figure 17 shows the generation of PFS1/PFS2 signals, assuming GCOF1[OFF10] = 0.
5-6718 (F)
1. Only present if programmed on GPAF1 register.
2. Not outputs. Shown only for reference.
Note: GMODE = 00; CKRATE
00; GKMODE = X; OFF1 (0) = 0.
Key:
A: PFSDEL = 0 and PFSPE = 0
B: PFSDEL = 0 and PFSPE = 1
C: PFSDEL = 1 and PFSPE = 0
D: PFSDEL = 1 and PFSPE = 1
: Don’t care
Figure 17. GCI-NT Timing Diagram
DCL
BCLK
FS1(FSC)
DD
DU
TIMESLOT
1
GCI-NT FRAME (125
μ
s)
B1
B2
MON (OUT)
C/I
A E
B1
B2
MON (IN)
C/I
A E
0
1
2
3
DCL
BCLK
1
SYNC
2
BITSLOT
2
CHANNELSLOT
2
FSC
PFS1
1
PFS2
PFS1
1
PFS2
PFS1
1
PFS2
PFS1
1
PFS2
A
B
C
D
0
1
2
3
4
5
6
7
0
1
0
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