NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 189

• 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

Register bit assignment
Table 60: MAC Configuration Register 1 bit definition
D31:16
D15
D14
D13:12
D11
D10
D09
D08
D07:05
D04
D03
Bits
N/A
R/W
R/W
N/A
R/W
R/W
R/W
R/W
N/A
R/W
R/W
Access
Reserved
SRST
SIMRST
Reserved
RPEMCSR
RPERFUN
RPEMCST
RPETFUN
Reserved
LOOPBK
TXFLOW
Mnemonic
N/A
1
0
N/A
0
0
0
0
N/A
0
0
Reset
N/A
Soft reset
Must be set before/while changing any other MAC bits,
and cleared after they are modified. Setting this bit puts all
MAC modules within the MAC block into reset mode, with
the exception of the host interface. The host interface can
be reset only by a hardware reset condition.
Simulation reset
Set to 1 to reset the random number generator within the
MAC transmitter.
N/A
Reset PEMCS/RX
Set to 1 to reset the MAC control sublayer/receive domain
logic.
Reset PERFUN
Set to 1 to reset the MAC receive function logic.
Reset PEMCS/TX
Set to 1 to reset the MAC control sublayer/transmit domain
logic.
Reset PETFUN
Set to 1 to reset the MAC transmit function logic.
N/A
Internal loopback
1
0
TX flow control
1
0
Description
w w w . d i g i e m b e d d e d . c o m
The MAC transmit interface loops back to the MAC
receive interface.
(clear) Normal operation.
Allows the MAC to transmit PAUSE flow control
frames
Blocks PAUSE flow control frame transmission
E t h e r n e t M o d u l e
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