NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 245

• 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

Serial Channel 1, 2 Status Register A
Figure 27 shows the different transmit and receive coding methods.
Figure 27: Data coding example
Address: FFD0 0008 / 48
The receive status bits (D31:16) are stuffed into the StatusOrIndex field in the DMA
buffer descriptor when DMA operations are enabled and a buffer is closed. The upper
six bits of this register (D31:26) can be cleared by writing a 1 to the respective bit
position (used when interrupt-driven). These six bits are updated automatically when
a receive buffer is closed.
The receive interrupt pending bits (D15:00) are cleared by writing a 1 to the
respective bit position.
Note:
All status bits are active high unless an underscore ( _ ) appears in the
signal name; in this case, they are active low.
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S e r i a l C o n t r o l l e r M o d u l e
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