
PRELIMINARY
XRT86SH328
215
REV. P1.0.6
28-CHANNEL DS1/E1 FRAMER/LIU WITH DS3 MUX & VT-MAPPER - SONET APPLICATIONS
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to transmit DS3 frames with a
single/particular erred F-bit.
This particular F-bit corresponds with the 20th F-bit within a given outbound DS3 frame. The Transmit DS3 Framer
block will perform an XOR operation with the contents of this bit-field and the value of the 20th F-bit. The results of this
calculation will be written back into the 20th F-bit position, within each outbound DS3 frame.
N
OTE
:
The user should set this bit-field to 0 for normal (e.g., un-erred) operation.
BIT 2 - F-Bit Mask[18]:
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to transmit DS3 frames with a
single/particular erred F-bit.
This particular F-bit corresponds with the 19th F-bit within a given outbound DS3 frame. The Transmit DS3 Framer
block will perform an XOR operation with the contents of this bit-field and the value of the 19th F-bit. The results of this
calculation will be written back into the 19th F-bit position, within each outbound DS3 frame.
N
OTE
:
The user should set this bit-field to 0 for normal (e.g., un-erred) operation.
BIT 1 - F-Bit Mask[17]:
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to transmit DS3 frames with a
single/particular erred F-bit.
This particular F-bit corresponds with the 18th F-bit within a given outbound DS3 frame. The Transmit DS3 Framer
block will perform an XOR operation with the contents of this bit-field and the value of the 18th F-bit. The results of this
calculation will be written back into the 18th F-bit position, within each outbound DS3 frame.
N
OTE
:
The user should set this bit-field to 0 for normal (e.g., un-erred) operation.
BIT 0 - F-Bit Mask[16]:
This READ/WRITE bit-field is used to configure the Transmit DS3 Framer block to transmit DS3 frames with a
single/particular erred F-bit.
This particular F-bit corresponds with the 17th F-bit within a given outbound DS3 frame. The Transmit DS3 Framer
block will perform an XOR operation with the contents of this bit-field and the value of the 17th F-bit. The results of this
calculation will be written back into the 17th F-bit position, within each outbound DS3 frame.
N
OTE
:
The user should set this bit-field to 0 for normal (e.g., un-erred) operation.
BIT [7:0] - See
Table 286
above, for bit descriptions, substituting Mask [15:8] for mask[23:16]
BIT [7:0] - See
Table 286
above, for bit descriptions, substituting Mask [7:0] for mask[23:16]
T
ABLE
287: DS3 F
RAMER
B
LOCK
- T
RANSMIT
DS3 F-B
IT
M
ASK
R
EGISTER
# 3 (A
DDRESS
= 0
X
0E38)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
F-Bit
Mask[15]
F-Bit
Mask[14]
F-Bit
Mask[13]
F-Bit
Mask[12]
F-Bit
Mask[11]
F-Bit
Mask[10]
F-Bit Mask[9] F-Bit Mask[8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
T
ABLE
288: DS3 F
RAMER
B
LOCK
- T
RANSMIT
DS3 F-B
IT
M
ASK
R
EGISTER
# 4 (A
DDRESS
= 0
X
0E39)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
F-Bit Mask[7] F-Bit Mask[6] F-Bit Mask[5] F-Bit Mask[4] F-Bit Mask[3] F-Bit Mask[2] F-Bit Mask[1] F-Bit Mask[0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0