NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 5

• 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

C h a p t e r 1 : A b o u t t h e N S 7 5 2 0
C h a p t e r 2 : P i n o u t a n d P a c k a g i n g
C h a p t e r 3 : W o r k i n g w i t h t h e C P U
Contents
NS7520 Features ......................................................................... 2
NS7520 module block diagram......................................................... 5
Operating frequency .................................................................... 6
Packaging ................................................................................. 8
Pinout detail tables and signal descriptions........................................ 11
ARM Thumb concept ................................................................... 30
CPU performance ....................................................................... 30
Working with ARM exceptions ........................................................ 31
Key features and operating modes of the major NS7520 modules ........ 2
System bus interface ............................................................ 12
Chip select controller ........................................................... 16
Ethernet interface MAC ......................................................... 18
“No connect” pins ............................................................... 21
General-purpose I/O ............................................................ 21
System clock and reset ......................................................... 24
System mode (test support).................................................... 25
JTAG test (ARM debugger) ..................................................... 26
Power supply ..................................................................... 28
Summary of ARM exceptions ................................................... 32
Exception priorities.............................................................. 32
.................................................................................... 1
......................................................................... 7
..................................................................... 29
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