Advantech PCA-6185 user manual B.16 System I/O Ports, B.17 DMA Channel Assignments, AppendixB

B.16 System I/O Ports

Table B.16: System I/O ports

	Addr. Range (HEX)		Device
	020	021	Programmable interrupt controller
	040	043	System timer
	060		Standard 101/102 key or Microsoft Natural PS/2
	061		System speaker
	064	064	Standard 101/102 key or Microsoft Natural PS/2
	070	073	System CMOS/real time clok
	080	090	Direct memory access controller
	094	09F	Direct memory access controller
	0A0	0A1	Programmable interrupt controller
	0C0	0DF	Direct memory access controller
	0F0	0FF	Numeric data processor
	170	177	Secondary IDE channel
	1F0	1F7	Primary IDE channel
	2F8	2FF	Communication port (COM2)
	376		Secondary IDE channel
	3F6		Primary IDE channel
	378	37F	Printer port (LTP1)
	3F8	3FF	Communication port(COM1)
	444		Watchdog Timer
B.17 DMA Channel Assignments
	Table B.17: DMA channel assignments
	Channel	Function
	0	Available
	1	Available
	2	Floppy disk (8-bit transfer)
	3	Available
	4	Cascade for DMA controller 1
	5	Available
	6	Available
	7	Available

101 AppendixB