NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 145
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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Address map
DMA channel registers
Table 49: DMA channel assignments
All registers are 32-bit unless otherwise noted.
The next table sows the address map for the DMA channel configuration registers.
1
2
3
4
5
6
7
8
9
10
11
12
13
Channel
FB write indicates fly-by peripheral-to-memory.
FB read indicates fly-by memory-to-peripheral.
MM indicates memory-to-memory.
DMA channels 3/5 and 4/6 can interface with external peripheral devices
using DMA handshake signals multiplexed through the GPIO pins in PORTA
and PORTC.
’hFF90 0000
’hFF90 0080
’hFF90 00A0
’hFF90 00C0
’hFF90 00E0
’hFF90 0100
’hFF90 0120
’hFF90 0140
’hFF90 0160
’hFF90 0180
’hFF90 01A0
’hFF90 01C0
’hFF90 01E0
Base address
Ethernet port 1 receiver
Ethernet port 1 transmitter
SER channel 1 receiver
SER channel 1 transmitter
SER channel 2 receiver
SER channel 2 transmitter
DMA channel peripheral
w w w . d i g i e m b e d d e d . c o m
FB write
FB write
FB read
FB write
FB read
MM
MM
MM
FB read
Fly-by mode
D M A M o d u l e
1 3 3
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