NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 176

• 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

Ethernet General Status register (EGSR) bit definitions
1 6 4
E F E c o n f i g u r a t i o n
Address: FF80 0004
General information
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
Table 55: Ethernet General Status register bit definition
D31:30
Bits
15
31
Reserved
RXFDB
RXREGR
RXFIFOH
RXBR
30
14
N/A
Access
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
29
13
RXPINS
RXFDB
28
12
Reserved
Mnemonic
REGR
RX
27
11
FIFOH
26
RX
10
RXSKIP
TXREGE
TXFIFOH
TXBC
N/A
Reset
RXBR
25
9
SKIP
RX
24
8
N/A
Description
23
7
22
6
Reserved
21
5
Reserved
20
4
REGE
19
TX
3
FIFOH
TX
18
2
TXBC
17
1
FIFOE
16
TX
0