NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 79
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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Table 24: System Control register bit definition
D05:04
D03:00
Bits
R/W
N/A
Access
BSYNC
Reserved
Mnemonic
0
N/A
Reset
TA_ input synchronizer
Defines the level of synchronization performed within the
NS7520 for TA_ input:
00
01
10
11
The NS7520 can process the TA_ input signal using a 1-
stage flip-flop synchronizer or a 2-stage synchronizer. A
1- or 2-stage synchronizer must be used when TA_ input
is asynchronous to the BCLK signal.
Note:
N/A
Description
w w w . d i g i e m b e d d e d . c o m
1-stage synchronizer
1-stage synchronizer
2-stage synchronizer
Do not use this setting
The 2-stage synchronizer is preferable, as it
introduces one additional BCLK of latency in
the access cycle.
G E N M o d u l e
6 7
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