TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
Data Sheet
June 2002
June 2002
TMXF28155/51 Supermapper
12 28-Channel Framer Registers (continued)
Table 359. FRM_SYSGR1, System Interface Global Register 1 (R/W) (continued)
Address Bit
Name
Function
Reset
Default
0x80050
10
FRM_CMS
CHI Clock Mode. This bit is only applicable in the CHI mode.
0
Otherwise, it should be set to 0.
0 = CHI clock and CHI data have the same rate.
1 = CHI clock is twice the rate of CHI data.
9
FRM_CHIDTS
CHI Dual Time-Slot Mode. This bit is only applicable in the
CHI 4.096 Mbits/s (no ASM) and 8.192 Mbits/s (without ASM)
modes.
0
0 = enables 32 contiguous time slots.
1 = enables double time-slot mode in which the transmit CHI
drives data for one time slot and 3-states for the subse-
quent time slot.
8
FRM_STUFFL/
Stuff Position/Link Start. CHI modes only: determines the
position of the stuffed time slots in conjunction with the byte
offset.
1
FRM_LNKSTART
0 = SDDDSDDDSDDDS.. . . . . . . (TS0—TS31).
1 = SDDDDDD. . . . . . . SSSSSSS (TS0—TS31).
NSMI modes only: this bit determines how links are numbered
on the NSMI. Internally, links are numbered starting at 1.
0 = NSMI link numbering starts at 0.
1 = NSMI link numbering starts at 1.
7
6
5
FRM_AISLFA
System AIS on Loss of Frame Alignment.
0
0
0
0 = no action.
1 = system AIS is transmitted when the receive framer or the
mapper loss of frame alignment (MFA for DS1, BFA for
CEPT) is detected.
FRM_AISCRCT
System AIS on CEPT Timer Expiration.
0 = no action.
1 = system AIS is transmitted when the receive framer loss of
multiframe alignment timer expiration is detected. (CEPT
only.)
FRM_DNOTFAS CEPT Dual NOTFAS. This bit is applicable in all system
modes.
0 = FAS and NOTFAS time slots are transmitted to the sys-
tem. The receive system interface expects both FAS and
NOTFAS time slots.
1 = NOTFAS is transmitted twice to the system (in the NOT-
FAS and FAS time slots). The receive system expects
time slots 0 to carry NOTFAS that is repeated twice.
262
Agere Systems Inc.
ETC [ ETC ]
