#define disdata P1

#define powerup 0x20
#define setplay 0xe0
#define play    0xf0
#define setrec  0xa0
#define rec     0xb0
#define setmc   0xf8
#define stop    0x30
#define stoppwrdn 0x10
#define rint    0x30

sbit ss  = P0^0;
sbit sclk= P0^3;
sbit mosi= P0^1;
sbit miso= P0^2;
sbit rac = P0^4;
sbit int0 = P0^5;

sbit rec_ctrl=P3^7;
sbit rec_led =P3^6;
sbit dis_low =P0^7;
sbit dis_high=P0^6;



void init(void);
void enable_in_ram(void);
void dis_ale(void);
void init_isd(void);
void delay_kb(unsigned char time);
unsigned char kbscan(void);
void isd_spi(unsigned char cmd);
unsigned char chk_ovf(void);
void isd_rec(void);
void isd_play(unsigned int address);
void delay_isd(unsigned int i);