NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 181

• 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

General Status register when a transmit frame is completed and the Ethernet
Transmit Status register is loaded. The lower 16 bits (D15:00) of the register are also
loaded into the StatusOrIndex field of the DMA buffer descriptor when using DMA
mode.
Register bit assignment
Table 58: Ethernet Transmit Status register bit definition
D31:16
D15
D14
D13
Bits
TXOK
15
31
TXBR
30
14
N/A
R
R
R
Access
TXMC
29
13
TXAL
28
12
Reserved
TXOK
TXBR
TXMC
Mnemonic
TXA
ED
27
11
TXA
26
10
EC
N/A
0
0
0
Reset
TXA
UR
25
9
TXAJ
24
8
Reserved
N/A
Packet transmitted OK
When the bit is set to 1, the frame has been delivered and
emptied from the transmit FIFO. TXREGE and TXFIFOH
in the Ethernet General Status register become active when
the FIFO is ready to start receiving the next packet.
TXBC in the Ethernet General Status register becomes
active when TXOK is set.
Broadcast packet transmitted
Set to 1 to indicate that the last Ethernet packet transmitted
was a broadcast packet.
Multicast packet transmitted
Set to 1 to indicate that the last Ethernet packet transmitted
was a multicast packet.
Description
w w w . d i g i e m b e d d e d . c o m
used
Set to 1 when the last Ethernet packet was transmitted
without error.
transmitted.
Set to 0 when the last Ethernet packet was not
Not
23
7
DEF
22
TX
6
CRC
TX
21
5
used
Not
20
4
19
3
E t h e r n e t M o d u l e
18
2
TXCOLC
17
1
16
0
1 6 9