User manual

RSKRX62T 6. Configuration
REJ10J2194-0300 Rev.3.00 Page 20 of 40
Nov 08, 2011
6.4 RS232 Serial Port Configuration
Table 6-4 below details the function of the option links associated with serial port configuration.
Reference Link Fitted Configuration Link Removed Configuration Related Ref.
R69 Connects T2OUT (U5, pin 8) to the
serial socket, pin 8.
Disconnects T2OUT (U5, pin 8)
from the serial socket,
pin 8.
-
R70 Connects R2IN (U5, pin 9) to the serial
socket, pin 7.
Disonnects R2IN (U5, pin 9) to the
serial socket, pin 7.
-
R74 Connects SHDN (U5, pin 20) to Ground,
causing U5 to enter a state of shutdown.
Disconnects SHDN (U5, pin 20)
from Ground.
-
R76 Connects EN (U5, pin 1) to Board_VCC. Disconnects EN (U5, pin 1) from
Board_VCC.
-
R77 Connects T1IN (U5, pin 13) to the
header JA6, pin 5.
Disconnects T1IN (U5, pin 13) from
the header JA6,
pin 5.
-
R78 Connects R1OUT (U5, pin 15) to the
header JA6, pin 6.
Disconnects R1OUT (U5, pin 15)
from the header JA6,
pin 6.
-
R84 Connects RXD2-A (MCU, pin 27) to the
RS232 transceiver (U5, pin 10).
Disconnects RXD2-A (MCU, pin 27)
from the RS232 transceiver (U5,
pin 10).
-
R83 Connects TXD2-A (MCU, pin 28) to the
RS232 transceiver U5, pin 12.
Disconnects TXD2-A (MCU, pin 28)
from the RS232 transceiver (U5,
pin 12).
-
R100 Connects RXD0 (MCU, pin 34) to the
RS232 transceiver (U5, pin 15)
bypassing J11.
Disconnects RXD0 (MCU, pin 34)
from the RS232 transceiver (U5, pin
15).
R114, R115,
R116, J11
R103 Connects TXD0 (MCU, pin 33) to the
RS232 transceiver (U5, pin 13)
bypassing J10.
Disconnects TXD0 (MCU, pin 33)
from the RS232 transceiver (U5, pin
10).
R112, J10
R112 Connects TXD0 (MCU, pin 33) to the
RS232 transceiver (U5, pin 13) via
J10.
Disconnects TXD0 (MCU, pin 33)
from the RS232 transceiver (U5, pin
13) via J10.
R113, R103,
J10
R115 Connects RXD0 (MCU, pin 34) to the
RS232 transceiver (U5, pin 15) via
J11.
Disconnects RXD0 (MCU, pin 34)
from the RS232 transceiver (U5, pin
15) via J11.
R114, R116,
R100, R78,
J11
Table 6-4: RS232 Serial Port Option Links