NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 166
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NS7520B-1-I46
Manufacturer Part Number
NS7520B-1-I46
Description
IC ARM MICROPROCESSOR 177BGA
Manufacturer
Digi International
Series
NET+ARM®r
Specifications of NS7520B-1-I46
Applications
Network Processor
Core Processor
ARM7
Program Memory Type
External Program Memory
Controller Series
-
Ram Size
External
Interface
EBI/EMI, Ethernet, DMA, SPI, UART
Number Of I /o
16
Voltage - Supply
1.4 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
177-LFBGA
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NS7520B-1-I46
Manufacturer:
Digi International
Quantity:
10 000
Part Number:
NS7520B-1-I46
Manufacturer:
NETARM
Quantity:
20 000
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MAC module block diagram
1 5 4
M A C m o d u l e
MAC module
The MAC component of the NS7520 provides a full function 10/100 Mbps media access
controller module with media independent interface (MII) and optional interface
modules, which include MII, PMD, and ENDEC.
The basic features in the MAC module include:
The 10/100 Mbps Ethernet MAC can be connected to the following devices through
the MII:
The MAC module also provides MII management and station address logic (SAL). The
SAL block filters the incoming receive addresses, accepting or rejecting individual
and multicast receive packets.
Figure 23 shows the MAC block and associated hierarchy, containing three main
modules:
10/100 Mbps Ethernet MAC
MII interface
MII management function
Optional 100 Mbps physical coding sublayer (PCS)
Optional 10 Mbps ENDEC interface
Address filtering
10/100 Mbps PHY
100 Mbps TP-PMD
10 Mbps ENDEC
TFUN. Transmit function.
RFUN. Receive function.
MCS. MAC control sublayer.
N S 7 5 2 0 H a r d w a r e R e f e r e n c e , R e v G 9 / 2 0 0 7
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