NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 207

• 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

MII Management Indicators register
Address: FF80 0434
Register bit assignment
Table 75: MII Management Indicators register bit definition
D31:03
D02
D01
D00
Bits
15
31
30
14
N/A
R
R
R
Access
29
13
28
12
Reserved
NVALID
SCAN
BUSY
Mnemonic
27
11
26
10
Reserved
N/A
N/A
N/A
N/A
Reset
25
9
24
8
Reserved
N/A
Read data not valid
A 1 indicates that the MII management read cycle is not
complete and read data is not yet valid.
Automatically scan for read data in progress
A 1 indicates that continuous MII management scanning
read operations are in progress.
MII interface BUSY with read/write operation
A 1 indicates that the MII management module is currently
performing an MII management read or write cycle. This
bit returns to 0 when the operation completes.
Description
w w w . d i g i e m b e d d e d . c o m
23
7
22
6
21
5
20
4
19
3
E t h e r n e t M o d u l e
VALID
18
N
2
SCAN
17
1
BUSY
16
0
1 9 5