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1991/1224/ss/io.h (diff list | history)

ss/io.h on 1990/1226
1990/1226    
#define	DISPLAYRAM	0x1E800000 
#define	EPROM		0xF6000000 
1990/1227    
#define	CLOCK		0xF3000000 
#define	CLOCKFREQ	1000000		/* one microsecond increments */ 
1991/1224    
#define	KMDUART0	0xF0000000	/* keyboard A, mouse B */ 
#define	KMDUART1	0xF1000000	/* serial ports */ 
1990/1231    
#define	ETHER		0xF8C00000	/* RDP, RAP */ 
#define	EEPROM		0xF2000000 
1991/0110    
#define	INTRREG		0xF5000000	/* interrupt register, IO space */ 
1991/0604    
 
typedef struct SCCdev	SCCdev; 
struct SCCdev 
{ 
	uchar	ptrb; 
	uchar	dummy1; 
	uchar	datab; 
	uchar	dummy2; 
	uchar	ptra; 
	uchar	dummy3; 
	uchar	dataa; 
	uchar	dummy4; 
}; 
 
/* 
 *  crystal frequency for SCC 
 */ 
#define SCCFREQ	10000000 


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comments to russ cox (rsc@swtch.com)