PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
Registers 046H, 146H, 246H and 346H: E1-TRAN International/National
Control
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
Si[1]
Si[0]
1
1
X
1
1
1
1
1
Unused
Sn[4]
Sn[5]
Sn[6]
Sn[7]
Sn[8]
R/W
R/W
R/W
R/W
R/W
Sn[4:8]:
Sn[4:8] of this register are substituted in bit positions 4 to 8, respectively, of
TS0 of each NFAS frame when framing generation (FDIS = 0) is enabled.
When FDIS is logic 1, the contents of this register are ignored and replaced
with either the TS0 datalink bits (if enabled) or random arbitrary data from the
serial input to the E1 TRAN block.
Si[1:0]:
The bits Si[1] and Si[0] correspond to the International bits. The Si[1] and
Si[0] bits can be programmed to any value and will be inserted into bit 1 of
each FAS frame and NFAS frame, respectively, when CRC multiframe
generation is disabled. When CRC multiframe generation is enabled, both
Si[1] and Si[0] are ignored if FEBE indication is enabled; if FEBEDIS is a logic
1 the values programmed in the Si[1] and Si[0] bit positions are inserted into
the spare bit locations of frame 13 and frame 15, respectively, of the CRC
multiframe.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
157
PMC [ PMC-SIERRA, INC ]
