AM8530H AMD [Advanced Micro Devices], AM8530H Datasheet - Page 190

• Manufacturer Part Number: AM8530H
• Description: Serial Communications Controller
• Manufacturer: AMD [Advanced Micro Devices]

SCC Application Notes
CATES
opnfile()
ptr—;
num = num + 1;
adrr = 01;
segread(&rv);
data_segment = rv.sds;
data_seg = data_segment << 4;
adrr = data_seg + (long int) ptr;
sccinit()
isters*/
var_nam = scanf(“%s”, string1);
result = strcmp(string1,”N”);
res = strcmp(string1,”n”);
}
while(result!=0 && res!=0);
}
/*THIS ROUTINE SETS A VALUE FOR THE STARTING ADDRESS AND ALLO-
{
extern char *alloc( );
unsigned int i;
ptr = alloc(num);
}
/*THIS ROUTINE INITIALIZES THE 8530 FOR RECEIVE*/
{
unsigned char array[arraysize];
unsigned int i=0;
unsigned char temp;
array[0]=0x9;
array[1]=0xC0;
array[2]=0x4;
array[3]=0x20;
array[4]=0x1;
array[5]=0x40;
array[6]=0x3;
array[7]=0xFC;
array[8]=0x5;
array[9]=0x63;
array[10]=0x6;
array[11]=0x02;
array[12]=0x7;
array[13]=0x7E;
array[14]=0x9;
array[15]=0x02;
array[16]=0xA;
array[17]=0x00;
array[18]=0xB;
array[19]=0x08;
array[20]=0xE;
array[21]=0x00;
array[22]=0x3;
SPACE IN MEMORY TO ACCOMMODATE ENTIRE LENGTH OF FILE*/
for(i=0; i<num; i++) *(ptr+i)=’\0’;
/*hardware reset the 8530*/
/*x1 clock, SDLC mode, parity disable*/
/*choose DMA request on receive*/
/*Rx 8 bits/char, autoenabled, hunt mode,
receive crc enable*/
/*Tx 8 bits/char, RTS enabled, TxCRC
enabled*/
/*address for this device is 01*/
/*SDLC flag pattern 01111110*/
/*No vector is returned*/
/*Send CRC and Flag on underrun, do not
abort*/
/*rec. clock=RTxC pin, Transmit clk=TRxC
pin*/
/*array to initialize SCC reg-
/*temporary storage for
transmit/receive characters*/
AMD
7–41