NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 221

• 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

Bit-rate generator
Figure 24 shows the structure of the serial module.
Figure 24: Serial port block diagram
Each serial channel supports an independent programmable bit-rate generator. The
bit-rate generator runs both the transmitter and receiver of a given channel (no split
speed support).
–
Clock/Data encoding
–
–
–
–
–
Multi-drop capable
CTS, DSR, DCD, RI state change detection
NRZ
NRZB
NRZI
FM
Manchester
generator
Bit rate
Config
Transmit
machine
state
32-byte
FIFO
w w w . d i g i e m b e d d e d . c o m
machine
Receive
32-byte
state
FIFO
S e r i a l C o n t r o l l e r M o d u l e
DMA
2 0 9