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UART registers are individually addressable and fully programmable.
2.3.5.1
Serial Port 1 is buffered directly for RS-232 operation. Signals include the complete signal set for
handshaking, modem control, interrupt generation, and data transfer. When assigned as Serial Port
1, the port is 100% compatible with the IBM-AT serial port in RS-232 mode.
Pin
1
2
3
4
5
6
7
8
Note:
Standard product uses a RJ-45 8 pins connector. RI (ring indicator) and DCD (data carrier detect)
signals are not available.
Optionally a RJ-45 10 pins connector may be populated which allow to use RI and DCD. Contact
Kontron's technical support if you are interested with this option.
The pinout is a custum one, not the same as RS-232D EIA-561. Use the Kontron provided RJ45 to
DB9 adapter.
Signal Paths:
The Serial Port 1 signal is always available in front and rear access.
Bios Settings:
Advanced
2.3.5.2
Serial Port 2 is internally connected to the IPMC. Serial port 2 is dedicated to Serial Over LAN (SOL)
type of console redirection. (This feature will be implemented shortly)
2.3.6
Real Time Clock & NVRAM
The AT8001 is a battery less board. The real time clock and non-volatile RAM integrated in the
6300ESB ICH are powered by the main supply when available or by a double layer SuperCap when the
main power is absent. The SuperCap will keep the real time clock running for a couple of hours.
Serial Port 1 (J5)
Signal
RTS
DTR
TXD
GND
GND
RXD
DSR
CTS
SuperIO Configuration
Serial Port 2
ICH SIO Serial Port1 Address.
2-18
AT8001 User's Guide
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