
XRT84L38
VII
REV. 1.0.1
OCTAL T1/E1/J1 FRAMER
T
HIRD
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
......................................................................................... 272
F
IFTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
.......................................................................................... 272
S
EVENTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
.................................................................................... 273
S
ECOND
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
...................................................................................... 273
F
OURTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
...................................................................................... 273
S
IXTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
......................................................................................... 273
E
IGHTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
....................................................................................... 273
F
IGURE
79. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
USING
16.384M
BIT
/
S
DATA
BUS
......................................... 274
F
IGURE
80. T
IMING
SIGNAL
WHEN
THE
FRAMER
IS
RUNNING
AT
H.100 16.384M
BIT
/
S
MODE
........................................................... 275
6.2 THE RECEIVE PAYLOAD DATA OUTPUT INTERFACE BLOCK................................................................. 275
6.2.1 DESCRIPTION OF THE RECEIVE PAYLOAD DATA OUTPUT INTERFACE BLOCK............................................. 275
R
ECEIVE
I
NTERFACE
C
ONTROL
R
EGISTER
(RICR) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
22H) ........................ 276
6.2.2 BRIEF DISCUSSION OF THE RECEIVE PAYLOAD DATA OUTPUT INTERFACE BLOCK OPERATING AT XRT84V24
COMPATIBLE 2.048MBIT/S MODE............................................................................................................................ 276
S
LIP
B
UFFER
C
ONTROL
R
EGISTER
(SBCR) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
16H)................................... 276
S
LIP
B
UFFER
C
ONTROL
R
EGISTER
(SBCR) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
16H)................................... 277
R
ECEIVE
I
NTERFACE
C
ONTROL
R
EGISTER
(RICR) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
22H) ........................ 278
6.2.2.1 C
ONNECT
THE
R
ECEIVE
P
AYLOAD
D
ATA
O
UTPUT
I
NTERFACE
BLOCK
TO
THE
L
OCAL
T
ERMINAL
E
QUIPMENT
IF
THE
S
LIP
B
UFFER
IS
BYPASSED
............................................................................................................................................. 279
F
IGURE
81. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
WITH
SLIP
BUFFER
BYPASSED
AND
RECOVERED
RECEIVE
LINE
CLOCK
AS
RECEIVE
TIMING
SOURCE
......................................................................................................................................... 280
F
IGURE
82. W
AVEFORMS
OF
THE
S
IGNALS
C
ONNECTING
THE
R
ECEIVE
P
AYLOAD
D
ATA
O
UTPUT
I
NTERFACE
BLOCK
TO
THE
LOCAL
T
ERMINAL
E
QUIPMENT
WHEN
THE
S
LIP
B
UFFER
IS
B
YPASSED
AND
THE
R
ECOVERED
L
INE
C
LOCK
IS
THE
T
IMING
S
OURCE
OF
THE
R
ECEIVE
S
ECTION
..................................................................................................................................................................... 281
6.2.2.2 C
ONNECT
THE
R
ECEIVE
P
AYLOAD
D
ATA
O
UTPUT
I
NTERFACE
BLOCK
TO
THE
L
OCAL
T
ERMINAL
E
QUIPMENT
IF
THE
S
LIP
B
UFFER
IS
ENABLED
............................................................................................................................................... 281
S
LIP
B
UFFER
S
TATUS
R
EGISTER
(SBSR) (I
NDIRECT
A
DDRESS
= 0
XN
AH, 0
X
08H)...................................... 282
F
IGURE
83. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
WITH
SLIP
BUFFER
ENABLED
OR
ACTS
AS
FIFO
..................... 283
F
IGURE
84. W
AVEFORMS
OF
THE
S
IGNALS
THAT
C
ONNECT
THE
R
ECEIVE
P
AYLOAD
D
ATA
O
UTPUT
I
NTERFACE
BLOCK
TO
THE
LOCAL
T
ERMI
-
NAL
E
QUIPMENT
WHEN
THE
S
LIP
B
UFFER
IS
E
NABLED
................................................................................................... 284
6.2.2.3 C
ONNECT
THE
R
ECEIVE
P
AYLOAD
D
ATA
O
UTPUT
I
NTERFACE
BLOCK
TO
THE
L
OCAL
T
ERMINAL
E
QUIPMENT
IF
THE
S
LIP
B
UFFER
IS
CONFIGURED
AS
FIFO ........................................................................................................................... 284
FIFO L
ATENCY
R
EGISTER
(FIFOL) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
17H) .............................................. 284
F
IGURE
85. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
WITH
SLIP
BUFFER
ENABLED
OR
ACTS
AS
FIFO
..................... 285
F
IGURE
86. W
AVEFORMS
OF
THE
S
IGNALS
THAT
C
ONNECT
THE
R
ECEIVE
P
AYLOAD
D
ATA
O
UTPUT
I
NTERFACE
BLOCK
TO
THE
LOCAL
T
ERMI
-
NAL
E
QUIPMENT
WHEN
THE
S
LIP
B
UFFER
IS
ACTED
AS
FIFO......................................................................................... 286
6.2.3 HIGH SPEED RECEIVE BACK-PLANE INTERFACE................................................................................................ 286
R
ECEIVE
I
NTERFACE
C
ONTROL
R
EGISTER
(RICR) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
22H) ........................ 286
R
ECEIVE
M
ULTIPLEX
E
NABLE
B
IT
= 0........................................................................................................ 287
R
ECEIVE
M
ULTIPLEX
E
NABLE
B
IT
= 1........................................................................................................ 288
R
ECEIVE
I
NTERFACE
C
ONTROL
R
EGISTER
(RICR) (I
NDIRECT
A
DDRESS
= 0
XN
0H, 0
X
22H) ......................... 288
6.2.3.1 E1 R
ECEIVE
I
NPUT
I
NTERFACE
- MVIP 2.048 MH
Z
............................................................................................. 288
F
IGURE
87. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
USING
MVIP 2.048M
BIT
/
S
DATA
BUS
.................................. 289
F
IGURE
88. T
IMING
D
IAGRAM
OF
I
NPUT
SIGNALS
TO
THE
F
RAMER
WHEN
RUNNING
AT
MVIP 2.048M
BIT
/
S
...................................... 289
6.2.3.2 E1 R
ECEIVE
I
NPUT
I
NTERFACE
- 4.096 MH
Z
....................................................................................................... 290
F
IGURE
89. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
USING
4.096M
BIT
/
S
DATA
BUS
........................................... 290
F
IGURE
90. T
IMING
D
IAGRAM
OF
INPUT
SIGNALS
TO
THE
FRAMER
WHEN
RUNNING
AT
4.096M
BIT
/
S
MODE
....................................... 291
6.2.3.3 E1 R
ECEIVE
I
NPUT
I
NTERFACE
- 8.192 MH
Z
....................................................................................................... 291
F
IGURE
91. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
USING
8.192M
BIT
/
S
DATA
BUS
........................................... 292
F
IGURE
92. T
IMING
DIAGRAM
OF
INPUT
SIGNALS
TO
THE
FRAMER
WHEN
RUNNING
AT
8.192M
BIT
/
S
MODE
........................................ 292
6.2.3.4 E1 R
ECEIVE
I
NPUT
I
NTERFACE
- B
IT
-M
ULTIPLEXED
16.384M
BIT
/
S
....................................................................... 292
F
IRST
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
.......................................................................................... 293
S
ECOND
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
...................................................................................... 293
F
IFTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
.......................................................................................... 294
S
IXTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
......................................................................................... 294
S
EVENTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
.................................................................................... 294
E
IGHTH
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
....................................................................................... 294
F
IGURE
93. I
NTERFACING
XRT84L38
TO
LOCAL
TERMINAL
EQUIPMENT
USING
16.384 M
BIT
/
S
DATA
BUS
........................................ 295
F
IGURE
94. T
IMING
SIGNAL
WHEN
THE
FRAMER
IS
RUNNING
AT
B
IT
-M
ULTIPLEXED
16.384M
BIT
/
S
MODE
.......................................... 295
6.2.3.5 E1 R
ECEIVE
I
NPUT
I
NTERFACE
- HMVIP 16.384M
BIT
/
S
....................................................................................... 295
F
IRST
O
CTET
OF
16.384M
BIT
/
S
D
ATA
S
TREAM
.......................................................................................... 296