NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 75
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
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System Control register
GEN module registers
All registers are 32 bits unless otherwise noted.
Address: FFB0 0000
General information
All bits in the System Control register are active high unless an underscore (_)
appears in the signal name; the underscore indicates active low.
Register bit assignment
Table 24: System Control register bit definition
D31
D30:29
D28
D27:25
Bits
LEND-
USER BUSER
IAN
15
31
30
14
Reserved
R/W
N/A
R/W
N/A
Access
Rsvd
29
13
BCLKD
DMA
TST
28
12
LENDIAN
Reserved
BCLKD
Reserved
Mnemonic
LAST
TEA
27
11
Reserved
ALIGN
MIS
26
10
ADDR27
N/A
0
N/A
Reset
25
9
Reserved
SWE
24
8
Configure chip to run in Little Endian mode
Controls the Endian configuration for the NS7520.
1
0
Initialized to and always read as 10 (full speed).
BCLK output disable
0
1
Shuts down the operation of the BCLK signal. Turning off
the BCLK signal minimizes electro-magnetic interference
(EMI) when BCLK is not required for an application.
N/A
Description
w w w . d i g i e m b e d d e d . c o m
CPU
DIS
23
Configures the chip to operate in Little Endian mode
BCLK output enabled
BCLK output forced to LOW state
7
Configures the chip for Big Endian mode
SWRI
DMA
RST
22
6
21
5
BSYNC
SWT
20
4
N/A
19
3
BME
18
2
Reserved
G E N M o d u l e
17
1
BMT
16
0
6 3
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