NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 80
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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System Status register
6 8
G E N m o d u l e r e g i s t e r s
Address: FFB0 0004
All bits in the System Status register, except EXT, WDOG, PLL, and SOFT, are loaded
during a hardware reset only. EXT, WDOG, PLL, and SOFT are loaded during any
reset. The GEN_ID value is not affected when an external jumper is changed, unless a
hardware reset is executed first.
Register bit assignment
Table 25: System Status register bit definition
D31:24
D23
Bits
15
31
30
14
R/O
R/C
Access
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
Reserved
29
13
28
12
REV
EXT
Mnemonic
REV
27
11
26
10
‘h29
N/A
Reset
25
9
24
8
NS7520 revision ID
Provides hardware identification of the NS7520 and its
revision.
Current NS7520 device and revision ID is:
Last reset caused by external reset
When set to 1, indicates that the RESET_ pin triggered the
last hardware reset condition. This reset initializes internal
parameters as described in "NS7520 bootstrap
initialization" on page 59.
EXT is set/reset during every reset condition. Clear this bit
by writing
Description
EXT
23
REV field:
7
WDOG
‘hF
22
6
in bits 23:20.
‘h29
GEN_ID
PLL
21
5
SOFT
20
4
19
3
18
2
Reserved
17
1
16
0
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