Instruction Manual
Maxim/Dallas Semiconductor Confidential Product Preview: DS3181,2,3,4
Rev 1.5 4 of 13 022304
Figure 1-2 Functional Block Diagram
TDENn
TDATn
/ TGCLKn
TLCLKn
TSOFn / TIOHMn
TOHn
TOHGCLKn
TOHSOFn
TPOHn
TPOHGCLK
TPOHSOFn
8KREFI
TMEI
System
Interface
TSCLK
TADR
[
4:0
]
TDATA
[
31:0
]
TPRTY*
TEN*
TPX
A
TDXA
[
4:1
]
TSOX
TEOP
TSX
TMOD
[
1:0
]
TERR
TSP
A
Tx
FIFO
Tx
PLCP/FRAC
Formatter
Tx Cell
Processor
DS3/E3
Transmit
LIU
TXPn
DS3 / E3
Transmit
Formatter
B3ZS/
HDB3
Encoder
TXNn
Tx Packet
Processor
TDMn
Framer Diagnostic
Loopback
Line Facility Loopbac
k
System Interface
Loopback
Framer Payload
Loopback
LLine Terminal
Loopback
Trail
Trace
Buffer
HDLC
FEAC
BERT
RSCLK
RADR
[
4:0
]
RDATA
[
31:0
]
RPRTY*
REN*
RPX
A
RDXA
[
4:1
]
RSOX
REOP
RSX
RVAL
RMOD
[
1:0
]
RERR
Rx
FIFO
Rx Packet
Processor
DS3/E3
Receive
LIU
DS3 / E3
Receive
Framer
B3ZS/
HDB3
Decoder
RXPn
Rx
PLCP/FRAC
Framer
Rx Cell
Processor
RXNn
Microprocessor
Interface
IEEE P1149.1
JTAG Test
Access Port
Clock Rate
Adapter
n = port #
CLK
A
CLKB
RDATn
RDENn / RGCLKn
RSOFn
RLCLKn
RPOHn
RPOHGCLKn
RPOHSOFn
8KREFO
ROHn
ROHGCLKn
ROHSOFn
JTDO
JTDI
JTCL
K
JTRST*
JTMS
RECU
REFCL
K
ALE
CS*
RD*/DS*
WR*/ R/W*
MOT
RST*
INT*
PIOAn
PIOBn
D
[
15:0
]
A
[
9:0
]
2 APPLICATIONS
• Access Concentrators
• Multi-Service Access Platforms
• ATM and Frame Relay Equipment
• Routers and Switches
• SONET/SDH ADM
• SONET/SDH Muxes
• PBXs
• Digital Cross Connect
• PDH Multiplexer/Demultiplexer
• Test Equipment
The following figures, Figure 2-1 and Figure 2-2, show applications for DS3184 as four port
unchannelized ATM and packet T3/E3 line cards, respectively.