NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 24
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NS7520B-1-C36
Manufacturer Part Number
NS7520B-1-C36
Description
IC ARM MICROPROCESSOR 177BGA
Manufacturer
Digi International
Series
NET+ARM®r
Specifications of NS7520B-1-C36
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-C36
Manufacturer:
Digi International
Quantity:
10 000
Part Number:
NS7520B-1-C36
Manufacturer:
NETARM
Quantity:
20 000
The MAC module interfaces to an external physical layer (PHY) device using the MII standard
defined by IEEE 802.3u. The MAC interface includes the MII clock and data signals.
Figure 4 shows a high-level block diagram of the EFE module, which provides the FIFO handling
interface between the NS7520 BBus and the MAC modules.
Figure 4: EFE module block diagram
2 0
E t h e r n e t c o n t r o l l e r
BBus
MAC TX interface
Transmit
N S 7 5 2 0 D a t a s h e e t
FIFO
byte
local
512
MAC RX interface
filtering &
statistics
Receive
Local
FIFO
byte
RX
2K
0 3 / 2 0 0 6