uart_ev44b0.h

44B0的测试程序。此程序为44B0的4*4键盘的应用程序

/*
 * MICETEK International Inc., (shanghai) 
 * 	By Qinwei , 2003.05.28 (CopyRight)
 * 
 *  Version 0.1
 */

#ifndef __UART_EV4510_

#define __UART_EV4510_
int port_init(int ch);
int dev_uart_init (int sys_clock, int reg_base, int ch);
//dev_uart_init returns non-negative number on  succuess, 0 on failing.

int crtio (int baund);
//crtio returns the old baund rate on success, 0 on failing.

void outbyte (int);
//outbyte returns the written char on success or EOF on failing.

int inbyte (void);
//inbyte returns the byte it reads on success or EOF on failing.
#define _ISR_STARTADDRESS 0xc7fff00     //GCS6:64M DRAM/SDRAM
//S3C44B0 uart register
void Delay(int time);



#define ULCON	0x0
#define UCON	0x4
#define UFCON	0x8
#define UMCON	0xC
#define UTRSTAT	0x10
#define UERSTAT	0x14
#define UFSTAT  0x18
#define UMSTAT  0x1C
#define UTXH    0x20
#define URXH    0x24
#define UBRDIV  0x28
//clock register
#define PLLCON  0x01D80000

#define DTR			0x00000010
#define	RDV			0x00000001
#define	TH_empty		0x00000002
#define	TC			0x00000080

/* ISR */
#define pISR_EINT4567	(*(unsigned *)(_ISR_STARTADDRESS+0x74))
#define pISR_EINT3	(*(unsigned *)(_ISR_STARTADDRESS+0x78))
#define pISR_EINT2	(*(unsigned *)(_ISR_STARTADDRESS+0x7c))
#define pISR_EINT1	(*(unsigned *)(_ISR_STARTADDRESS+0x80))
#define pISR_EINT0	(*(unsigned *)(_ISR_STARTADDRESS+0x84))

//USE MCLK 40M
#define B9600	259
#define B19200	129
#define B38400	64
#define B57600	42
#define B115200	21

/* PENDING BIT */
//CAUTION:You must clear the pending bit as general special register.
//        it's different way with KS32C6x00 
#define BIT_ADC		(0x1)
#define BIT_RTC		(0x1<<1)
#define BIT_UTXD1	(0x1<<2)
#define BIT_UTXD0	(0x1<<3)
#define BIT_SIO		(0x1<<4)
#define BIT_IIC		(0x1<<5)
#define BIT_URXD1	(0x1<<6)
#define BIT_URXD0	(0x1<<7)
#define BIT_TIMER5	(0x1<<8)
#define BIT_TIMER4	(0x1<<9)
#define BIT_TIMER3	(0x1<<10)
#define BIT_TIMER2	(0x1<<11)
#define BIT_TIMER1	(0x1<<12)
#define BIT_TIMER0	(0x1<<13)
#define BIT_UERR01	(0x1<<14)
#define BIT_WDT		(0x1<<15)
#define BIT_BDMA1	(0x1<<16)
#define BIT_BDMA0	(0x1<<17)
#define BIT_ZDMA1	(0x1<<18)
#define BIT_ZDMA0	(0x1<<19)
#define BIT_TICK	(0x1<<20)
#define BIT_EINT4567	(0x1<<21)
#define BIT_EINT3	(0x1<<22)
#define BIT_EINT2	(0x1<<23)
#define BIT_EINT1	(0x1<<24)
#define BIT_EINT0	(0x1<<25)
#define BIT_GLOBAL	(0x1<<26)

#endif //__UART_EV4510_