IBM DS-2000 warranty Programm Able Option Select

PROGRAMM

ABLE OPTION SELECT

The remaining POS registers are used for address and interrupt selections. These registers are programmed by the user through the IBM installation utility supplied with the PS/2. These registers are read/write but should not be written to by user software. The bit definitions of these registers are given in figures 16(a) and 16(b).

	+-------		+
D7		CHEN1	-----		Channel enable
	+-------		+
D6		INS11	--	+
	+-------		+	+--	Interrupt select
D5		INS10	--	+
	+-------		+
D4		ADS13	--	+
(a)	+-------		+
D3		ADS12
	+-------		+	+--	Address select
D2		ADS11
	+-------		+
D1		ADS10	--	+
	+-------		+
D0		CEN	---		Card enable
	+-------		+

	+-------		+
D7		CHEN2	-----		Channel	enable
	+-------		+
D6		INS21	--	+
	+-------		+	+--	Interrupt select
D5		INS20	--	+
	+-------		+
D4		ADS23	--	+
(b)	+-------		+
D3		ADS22
	+-------		+	+--	Address	select
D2		ADS21
	+-------		+
D1		ADS20	--	+
	+-------		+
D0		0	-----		Reserved
	+-------		+

Figure 16. DS-2000 POS implementation.

(a)POS location 102H

(b)POS location 103H

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