
XRT94L43
I
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
REV. 1.0.2
TABLE OF CONTENTS
GENERAL DESCRIPTION................................................................................................ 1
FEATURES................................................................................................................................................. 1
APPLICATIONS.......................................................................................................................................... 1
F
IGURE
1. B
LOCK
D
IAGRAM
OF
THE
XRT94L43
WHEN
C
ONFIGURED
IN
SONET M
ODE
..................................................................... 2
F
IGURE
2. B
LOCK
D
IAGRAM
OF
THE
XRT94L43
WHEN
C
ONFIGURED
IN
SDH/TUG-3 M
ODE
.............................................................. 3
F
IGURE
3. B
LOCK
D
IAGRAM
OF
THE
XRT94L43
WHEN
C
ONFIGURED
IN
SDH/AU-3 M
ODE
................................................................. 3
PRODUCT FEATURES..................................................................................................... 4
SONET T
RANSMITTER
.................................................................................................................................. 4
SONET R
ECEIVER
........................................................................................................................................ 4
M
APPER
....................................................................................................................................................... 5
DS3 R
ECEIVE
F
RAMER
................................................................................................................................. 5
DS3 T
RANSMIT
F
RAMER
............................................................................................................................... 6
E3 R
ECEIVE
F
RAMER
.................................................................................................................................... 6
E3 T
RANSMIT
F
RAMER
.................................................................................................................................. 7
E3/DS3/STS-1 D
E
-J
ITTERING
/D
E
-S
YNC
C
IRCUIT
.......................................................................................... 8
P
ERFORMANCE
M
ONITORING
......................................................................................................................... 8
I
NTERRUPT
, S
TATUS
AND
T
EST
...................................................................................................................... 8
O
RDERING
I
NFORMATION
............................................................................................................................. 10
F
IGURE
4. P
IN
O
UT
OF
THE
XRT94L43.......................................................................................................................................... 10
T
ABLE
OF
C
ONTENTS
............................................................................................................ I
PIN DESCRIPTIONS - DIRECT ADDRESSING ............................................................... 8
M
ICROPROCESSOR
I
NTERFACE
...................................................................................................................... 8
SONET/SDH S
ERIAL
L
INE
I
NTERFACE
P
INS
................................................................................................ 13
STS-12/STM-4 T
ELECOM
B
US
I
NTERFACE
- T
RANSMIT
D
IRECTION
.............................................................. 19
STS-12/STM-4 T
ELECOM
B
US
I
NTERFACE
- R
ECEIVE
D
IRECTION
................................................................ 22
SONET/SDH O
VERHEAD
I
NTERFACE
- T
RANSMIT
D
IRECTION
...................................................................... 24
STS-3/STM-1 T
ELECOM
B
US
I
NTERFACE
- T
RANSMIT
D
IRECTION
................................................................ 33
R
X
STS-1 TOH/POH I
NTERFACE
................................................................................................................. 82
STS-3/STM-1 T
ELECOM
B
US
I
NTERFACE
- R
ECEIVE
D
IRECTION
.................................................................. 85
R
ECEIVE
T
RANSPORT
O
VERHEAD
I
NTERFACE
............................................................................................. 128
G
ENERAL
P
URPOSE
I
NPUT
/O
UTPUT
........................................................................................................... 135
C
LOCK
I
NPUTS
.......................................................................................................................................... 139
B
OUNDARY
S
CAN
...................................................................................................................................... 139
M
ISCELLANEOUS
P
INS
............................................................................................................................... 139
P
OWER
S
UPPLY
P
INS
................................................................................................................................ 140
VDD = 3.3V............................................................................................................................................ 140
VDD (2.5V).............................................................................................................................................. 140
G
ROUND
................................................................................................................................................... 142
N
O
C
ONNECTS
.......................................................................................................................................... 142
PIN DESCRIPTIONS - INDIRECT ADDRESSING ....................................................... 144
M
ICROPROCESSOR
I
NTERFACE
.................................................................................................................. 144
SONET/SDH S
ERIAL
L
INE
I
NTERFACE
P
INS
.............................................................................................. 146
STS-12/STM-4 T
ELECOM
B
US
I
NTERFACE
- T
RANSMIT
D
IRECTION
............................................................ 153
STS-12/STM-4 T
ELECOM
B
US
I
NTERFACE
- R
ECEIVE
D
IRECTION
.............................................................. 156
SONET/SDH O
VERHEAD
I
NTERFACE
- T
RANSMIT
D
IRECTION
.................................................................... 158
STS-3/STM-1 T
ELECOM
B
US
I
NTERFACE
- T
RANSMIT
D
IRECTION
.............................................................. 167
R
X
STS-1 TOH/POH I
NTERFACE
............................................................................................................... 219
STS-3/STM-1 T
ELECOM
B
US
I
NTERFACE
- R
ECEIVE
D
IRECTION
................................................................ 222
R
ECEIVE
T
RANSPORT
O
VERHEAD
I
NTERFACE
............................................................................................. 272
G
ENERAL
P
URPOSE
I
NPUT
/O
UTPUT
........................................................................................................... 279
C
LOCK
I
NPUTS
.......................................................................................................................................... 287
B
OUNDARY
S
CAN
...................................................................................................................................... 287
M
ISCELLANEOUS
P
INS
............................................................................................................................... 287