
XRT86SH328
PRELIMINARY
206
28-CHANNEL DS1/E1 FRAMER/LIU WITH DS3 MUX & VT-MAPPER - SONET APPLICATIONS
REV. P1.0.6
See description of BIT7.
BIT 4 - M12 Remote Loop-Back Mode - DS1 Channel 0
See description of BIT7.
BIT 3 - M12 Loop-back Request - DS1 Channel 3
This READ/WRITE bit-field is used to command the M12 MUX block to transmit the Loop-back Request indicator for
DS1 Channel 3.
`
0 - The M12 MUX block will NOT transmit the Loop-back Request for DS1 Channel 3 (Normal Operation).
`
1 - The M12 MUX block will transmit the Loop-back Request for DS1 Channel 3.
N
OTE
:
Whenever the user executes this command, then the M12 MUX Block (associated with DS2 Channel # 0) will
invert the appropriate C-bits of the three (e.g., C41, C42 or C43) within the outbound DS2 data-stream based
upon the user's settings of Bits 1 and 0 (M12 Loop-back Codes[1:0]) within the DS3 Framer Block - M12
Configuration Register - DS2 Channel # 0 (Address = 0x0E1A).
BIT 2 - M12 Loop-back Request - DS1 Channel 2
See description of BIT 3.
BIT 1 - M12 Loop-back Request - DS1 Channel 1
See description of BIT 3.
BIT 0 - M12 Loop-back Request - DS1 Channel 0
See description of BIT 3.
BIT [7:0] See
Table 272
above for bit descriptions, substituting Channel [7:4] for Channel [3:0}.
BIT [7:0] See
Table 272
above for bit descriptions, substituting Channel [11:8] for Channel [3:0}.
T
ABLE
273: DS3 F
RAMER
B
LOCK
- M12 L
OOP
-
BACK
R
EGISTER
- 2 (A
DDRESS
= 0
X
0E29)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
M12 Remote
Loop Back
Mode - DS1
Channel 7
M12 Remote
Loop-Back
Mode - DS1
Channel 6
M12 Remote
Loop-Back
Mode - DS1
Channel 5
M12 Remote
Loop-Back
Mode - DS1
Channel 4
M12 Loop-
Back
Request -
DS1
Channel 7
M12 Loop-
Back
Request -
DS1
Channel 6
M12 Loop-
Back
Request -
DS1
Channel 5
M12 Loop-
Back
Request -
DS1
Channel 4
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
274: DS3 F
RAMER
B
LOCK
- M12 L
OOP
-
BACK
R
EGISTER
- 3 (A
DDRESS
= 0
X
0E2A)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
M12 Remote
Loop Back
Mode - DS1
Channel 11
M12 Remote
Loop-Back
Mode - DS1
Channel 10
M12 Remote
Loop-Back
Mode - DS1
Channel 9
M12 Remote
Loop-Back
Mode - DS1
Channel 8
M12 Loop-
Back
Request -
DS1
Channel 11
M12 Loop-
Back
Request -
DS1
Channel 10
M12 Loop-
Back
Request -
DS1
Channel 9
M12 Loop-
Back
Request -
DS1
Channel 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