/*********************************************************************************************
* name: Init1341
* func: Init philips 1341 chip
* para: none
* ret: none
* modify:
* comment:
*********************************************************************************************/
void Init1341()
{
/* Port Initialize */
rPCONA = 0x1ff; // PA9(out):L3D
rPCONB = 0x7CF; // PG5:L3M, PG4:L3C
rPDATB = L3M|L3C; // L3M=H(start condition),L3C=H(start condition)
/* L3 Interface */
_WrL3Addr(0x14+2); // status (000101xx+10)
#ifdef FS441KHZ
_WrL3Data(0x60,0); // 0,1,10,000,0 reset,256fs,no DCfilter,iis
#else
_WrL3Data(0x40,0); // 0,1,00,000,0 reset,512fs,no DCfilter,iis
#endif
_WrL3Addr(0x14+2); // status (000101xx+10)
#ifdef FS441KHZ
_WrL3Data(0x20,0); // 0,0,10,000,0 no reset,256fs,no DCfilter,iis
#else
_WrL3Data(0x00,0); // 0,0,00,000,0 no reset,512fs,no DCfilter,iis
#endif
_WrL3Addr(0x14+2); // status (000101xx+10)
_WrL3Data(0x81,0); // 1,0,0,0,0,0,11 OGS=0,IGS=0,ADC_NI,DAC_NI,sngl speed,AonDon
_WrL3Addr(0x14+0); // DATA0 (000101xx+00)
_WrL3Data(0x0A,0);
}
/*
This routine initializes the i/o port used for L3-bus and
then configures the UDA1330
*/
static void Init1330( int SC384 )
{
/****** I/O Port E Initialize ******/
/* port reconfiguration :
PORTE 9,10,11 --> output
pull-up disable
L3_MODE, L3_CLK High
*/
if (SC384)
SC384=1;
rPEDAT = (rPEDAT & ~0xe00) | (L3M|L3C);
rPEUP |= 0xe00;
rPECON = (rPECON & (~(0x3f << 18))) | (0x15<<18);
/****** send commands via L3 Interface
Data bits 7 to 2 represent a 6-bit device address where bit 7 is the MSB.
The address of the UDA1330ATS is 000101 (bit 7 to bit 2).
******/
/* status type transfer , data value - clock=512fs, MSB format */
_WrL3Addr(0x14+2); //STATUS (0) (000101xx+10)
_WrL3Data( ((2-SC384)<<4)+ // 00, : 512,384,256fs (SC : System Clock Freq)
(0<<1) // 000, : iis,lsb16,lsb18,lsb20,msb
,0);
/* data type transfer , data value - full volume */
_WrL3Addr(0x14 + 0); /* DATA0 (000101xx+00) */
_WrL3Data(0x0 /* volume */
,0);
/* data type transfer , data value - de-emphasis, no muting */
_WrL3Addr(0x14 + 0); /* DATA0 (000101xx+00) */
_WrL3Data(0x80+ /* select de-emhasis/mute */
(2<<3) /* de-emp 44khz */
,1);
}
