NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 170

• 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

Ethernet General Control register (EGCR) bit definitions
1 5 8
E F E c o n f i g u r a t i o n
Address: FF80 0000
General information
These fields should be set only once, on device open:
These fields are used only when using Ethernet receive in interrupt service mode
rather than DMA mode (DMA interface logic). DMA mode provides higher performance
out of the Ethernet chip, and can be turned on and off.
Register bit assignment
Note:
ERX
15
31
MODE
ERX
ERXDMA
ERXLNG
ERXSHT
ERXBAD
ERXREG
ERFIFOH
ERXBR
DMA
ERX
30
14
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
Bits D15:D00 are media control bits, with D07:D00 used in ENDEC mode
only.
Rsvd
ERX
LNG
29
13
SHT
RXC
ERX
INV
28
12
ERX
REG
TXC
INV
27
11
FIFOH
pNA
26
10
ER
ETX
ETXDMA
ETXWM
EFULLD
ETXREG
ETFIFOH
ETXBC
RESET
MAC_
ERX
25
BR
9
ITXA
ERX
BAD
24
8
ETX
23
7
PDN:, AUI_TP:, LNK_DIS:, LPBK:, UTP_STP
DMA
ETX
22
6
21
5
ETXWM
20
4
ETX
REG
19
3
FIFOH
18
ET
2
ETX
BC
17
1
EXINT
FULLD
16
0
E