DS31256 Maxim Integrated Products, DS31256 Datasheet - Page 46
DS31256
Manufacturer Part Number
DS31256
Description
IC CTRLR HDLC 256-CHANNEL 256BGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS31256.pdf
(183 pages)
Specifications of DS31256
Controller Type
HDLC Controller
Interface
Serial
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
500mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
256-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS31256
Manufacturer:
DALLAS
Quantity:
20 000
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Figure 6-1. Layer 1 Block Diagram
RC
RS
RD
TC
TS
TD
Force
All
Ones
1 of 16
Ports
0, 1, 2
Only
LLB
Local
Loop-
Back
(LLB)
Invert
Clock /
Data /
Sync
BERT/
Fast
HDLC
Mux
Invert
Clock /
Data /
Sync
Over-
Sample
with
PCLK
Over-
Sample
with
PCLK
UNLB
(Figure 6-7)
BERT Mux
Un-
Channel-
ized
Network
Loopback
(UNLB)
46 of 183
PORT
RAM
(see
Sec.
5.3)
V.54
Detector
Channel-
ized
Local
Loop-
Back
(CLLB)
Layer 1
State Machine
Transmit
Receive
Channel-
ized
Network
Loop-
Back
(CNLB)
Ports 0 & 1 Only
SLOW
HDLC
(One
per
Port)
FAST
HDLC
l1_bd
To /
From
FIFO
Block
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