DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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TABLE OF CONTENTS
1
DESCRIPTION ................................................................................................................................... 9
2
FEATURE HIGHLIGHTS.................................................................................................................. 11
2.1
G
ENERAL
...................................................................................................................................... 11
2.2
M
ICROPROCESSOR
I
NTERFACE
...................................................................................................... 11
2.3
HDLC E
THERNET
M
APPING
.......................................................................................................... 11
2.4
X.86 (L
INK
A
CCESS
P
ROTOCOL FOR
SONET/SDH) E
THERNET
M
APPING
....................................... 11
2.5
A
DDITIONAL
HDLC C
ONTROLLERS IN THE
I
NTEGRATED
T1/E1/J1 T
RANSCEIVER
............................ 12
2.6
C
OMMITTED
I
NFORMATION
R
ATE
(CIR) C
ONTROLLER
.................................................................... 12
2.7
SDRAM I
NTERFACE
...................................................................................................................... 12
2.8
MAC I
NTERFACE
........................................................................................................................... 12
2.9
T1/E1/J1 L
INE
I
NTERFACE
............................................................................................................ 13
2.10
C
LOCK
S
YNTHESIZER
.................................................................................................................... 13
2.11
J
ITTER
A
TTENUATOR
..................................................................................................................... 13
2.12
T1/E1/J1 F
RAMER
........................................................................................................................ 14
2.13
TDM B
US
..................................................................................................................................... 14
2.14
T
EST AND
D
IAGNOSTICS
................................................................................................................ 15
2.15
S
PECIFICATIONS
C
OMPLIANCE
....................................................................................................... 16
3
APPLICATIONS ............................................................................................................................... 17
4
ACRONYMS AND GLOSSARY ....................................................................................................... 18
5
MAJOR OPERATING MODES ........................................................................................................ 19
6
BLOCK DIAGRAMS......................................................................................................................... 20
7
PIN DESCRIPTIONS........................................................................................................................ 25
7.1
P
IN
F
UNCTIONAL
D
ESCRIPTION
...................................................................................................... 25
8
FUNCTIONAL DESCRIPTION ......................................................................................................... 41
8.1
P
ROCESSOR
I
NTERFACE
............................................................................................................... 42
8.1.1
Read-Write/Data Strobe Modes............................................................................................................42
8.1.2
Clear on Read .......................................................................................................................................42
8.1.3
Interrupt and Pin Modes........................................................................................................................42
9
ETHERNET MAPPER ...................................................................................................................... 43
9.1
E
THERNET
M
APPER
C
LOCKS
......................................................................................................... 43
9.1.1
Ethernet Interface Clock Modes............................................................................................................45
9.1.2
Serial Interface Clock Modes ................................................................................................................45
9.2
R
ESETS AND
L
OW
P
OWER
M
ODES
................................................................................................. 46
9.3
I
NITIALIZATION AND
C
ONFIGURATION
.............................................................................................. 47
9.4
G
LOBAL
R
ESOURCES
.................................................................................................................... 47
9.5
P
ER
-P
ORT
R
ESOURCES
................................................................................................................ 47
9.6
D
EVICE
I
NTERRUPTS
..................................................................................................................... 48
9.7
I
NTERRUPT
I
NFORMATION
R
EGISTERS
........................................................................................... 50
9.8
S
TATUS
R
EGISTERS
...................................................................................................................... 50
9.9
I
NFORMATION
R
EGISTERS
............................................................................................................. 50
9.10
S
ERIAL
I
NTERFACE
........................................................................................................................ 50
9.11
C
ONNECTIONS AND
Q
UEUES
......................................................................................................... 51
9.12
A
RBITER
....................................................................................................................................... 52
9.13
F
LOW
C
ONTROL
............................................................................................................................ 53
9.13.1
Full Duplex Flow Control.......................................................................................................................54
9.13.2
Half Duplex Flow Control ......................................................................................................................55
9.13.3
Host-Managed Flow Control .................................................................................................................55
9.14
E
THERNET
I
NTERFACE
P
ORT
......................................................................................................... 56