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S e r i a l p o r t c o n n e c t o r s
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Serial port
A, P13
Serial port
B, P9
Serial port C, P10
Serial port A
(EIA-232/422/485)
connector, P13
Serial port A
diagram
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The development board has four serial ports: A (P13), B (P9), C (P10), and D (P11).
Serial ports A and B support full EIA-232 functionality; serial ports C and D do not.
Serial port D, P11
The serial port A connector is a single DB-9 male connector for EIA-232/EIA-485
switchable mode, labeled P13. The serial port A interface corresponds to NS9360
serial port A, and is a switch-selectable EIA-232/422/485 interface with a maximum
baud rate of 921 kbps (see "Serial Port A switch, SW1" on page 31). Each signal is
available with its status LED, and all status LEDs are bi-color, red or green.
This diagram shows the switch-selectable EIA-232/422/485 interface:
A B O U T T H E D E V E L O P M E N T B O A R D
Serial port connectors
35
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