Intel MPCBL0001 manual 0b = Get parameter

Intel NetStructure® MPCBL0001 High Performance Single Board Computer

Contents

Table 39. Get Serial/Modem Configuration Command: Net Function=0Ch, Command=11h

	Byte		Data Field
		[7]	- 0b = Get parameter
		1b	= Get parameter revision only
	1	[6:4] - Reserved
		[3:0] – Channel number
Request Data		4h	= Serial channel
	2	Parameter selector (Must be 07h)
	3	Set selector (Must be 00h)
	4	Block selector (Must be 00h)
Response Data	1	Completion code
	2	Parameter Revision (11h)
		[7:6] - Flow control (No affect on serial buffering)
		00b = No flow control
		01b = RTS/CTS flow control (hardware handshake)
	3	10b = XON/XOFF flow control
		11b = Reserved
		[5]	- DTR hang-up (No affect on serial buffering))
		[4:0] - Reserved
		[7:4] - Reserved
		[3:0] - 0-5h = Reserved
		6h	= 9600 bps
	4	7h	= 19.2 kbps (default)
		8h	= 38.4 kbps
		9h	= 57.6 kbps
		Ah = 115.2 kbps
		Bh-Fh = Reserved

Setting the Super I/O’s serial port parameters varies as to which part of the operational sequence is desired to be buffered: BIOS or system.

BIOS message buffering must be configured from the BIOS Setup screen that deals with Remote Access. This is usually available from the Main BIOS Setup menu. The port must be set to COM2 and the Baud Rate and Flow Control must match what is sent to the IPMC via the Set Serial/ Modem Configuration command shown above.

System message buffering, such as Linux, requires that the system have a driver that can route system messages to the COM2 port. For Linux, this port is usually /dev/ttyS1. Linux can be configured to route the output of syslog to various places, including /dev/ttyS1, via the file /etc/ syslog.conf. Refer to the man page for syslog.conf for more details. Setting the operating parameters of the serial port under Linux can be accomplished with the stty command (e.g., stty –F /dev/ttyS1 19200). The serial port parameters should be configured in a startup script that the system executes when it starts up. As with the BIOS description above, both the Baud Rate and Flow Control parameters must match those set in the IPMC.

Technical Product Specification	75
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