DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
4 of 344
10.17.4
FIFO Information ...................................................................................................................................96
10.17.5
Receive Packet-Bytes Available ...........................................................................................................96
10.18
L
EGACY
FDL S
UPPORT
(T1 M
ODE
) ............................................................................................... 97
10.18.1
Overview ...............................................................................................................................................97
10.18.2
Receive Section ....................................................................................................................................97
10.18.3
Transmit Section ...................................................................................................................................98
10.19
D4/SLC-96 O
PERATION
................................................................................................................ 98
10.20
P
ROGRAMMABLE
I
N
-B
AND
L
OOP
C
ODE
G
ENERATION AND
D
ETECTION
............................................ 99
10.21
L
INE
I
NTERFACE
U
NIT
(LIU)......................................................................................................... 100
10.21.1
LIU Operation......................................................................................................................................100
10.21.2
Receiver ..............................................................................................................................................100
10.21.3
Transmitter ..........................................................................................................................................102
10.22
MCLK P
RESCALER
..................................................................................................................... 103
10.23
J
ITTER
A
TTENUATOR
................................................................................................................... 103
10.24
CMI (C
ODE
M
ARK
I
NVERSION
) O
PTION
........................................................................................ 103
10.25
R
ECOMMENDED
C
IRCUITS
........................................................................................................... 104
10.26
T1/E1/J1 TRANSCEIVER BERT FUNCTION ........................................................................... 108
10.26.1
BERT Status .......................................................................................................................................108
10.26.2
BERT Mapping....................................................................................................................................108
10.26.3
BERT Repetitive Pattern Set ..............................................................................................................110
10.26.4
BERT Bit Counter................................................................................................................................110
10.26.5
BERT Error Counter............................................................................................................................110
10.26.6
BERT Alternating Word-Count Rate ...................................................................................................110
10.27
P
AYLOAD
E
RROR
-I
NSERTION
F
UNCTION
(T1 M
ODE
O
NLY
) ........................................................... 111
10.27.1
Number-of-Errors Registers................................................................................................................111
10.28
P
ROGRAMMABLE
B
ACKPLANE
C
LOCK
S
YNTHESIZER
..................................................................... 112
10.29
F
RACTIONAL
T1/E1 S
UPPORT
..................................................................................................... 112
10.30
T1/E1/J1 T
RANSMIT
F
LOW
D
IAGRAMS
......................................................................................... 113
11
DEVICE REGISTERS..................................................................................................................... 117
11.1
R
EGISTER
B
IT
M
APS
................................................................................................................... 118
11.1.1
Global Ethernet Mapper Register Bit Map ..........................................................................................118
11.1.2
Arbiter Register Bit Map ......................................................................................................................119
11.1.3
BERT Register Bit Map .......................................................................................................................119
11.1.4
Serial Interface Register Bit Map ........................................................................................................120
11.1.5
Ethernet Interface Register Bit Map....................................................................................................122
11.1.6
MAC Register Bit Map ........................................................................................................................123
11.2
G
LOBAL
R
EGISTER
D
EFINITIONS FOR
E
THERNET
M
APPER
............................................................ 134
11.3
A
RBITER
R
EGISTERS
................................................................................................................... 143
11.3.1
Arbiter Register Bit Descriptions .........................................................................................................143
11.4
BERT R
EGISTERS
...................................................................................................................... 144
11.5
S
ERIAL
I
NTERFACE
R
EGISTERS
.................................................................................................... 151
11.5.1
Serial Interface Transmit and Common Registers..............................................................................151
11.5.2
Serial Interface Transmit Register Bit Descriptions ............................................................................151
11.5.3
Transmit HDLC Processor Registers..................................................................................................152
11.5.4
X.86 Registers.....................................................................................................................................159
11.5.5
Receive Serial Interface......................................................................................................................161
11.6
E
THERNET
I
NTERFACE
R
EGISTERS
.............................................................................................. 174
11.6.1
Ethernet Interface Register Bit Descriptions.......................................................................................174
11.6.2
MAC Registers ....................................................................................................................................186
11.7
T1/E1/J1 T
RANSCEIVER
R
EGISTERS
........................................................................................... 201
11.7.1
Number-of-Errors Left Register...........................................................................................................299
12
FUNCTIONAL TIMING................................................................................................................... 300
12.1
F
UNCTIONAL
S
ERIAL
I/O T
IMING
.................................................................................................. 300
12.2
MII
AND
RMII I
NTERFACES
.......................................................................................................... 301
12.3
T
RANSCEIVER
T1 M
ODE
F
UNCTIONAL
T
IMING
.............................................................................. 303