NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 145

• 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

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