Lanner LEC-7105 - Manual (Page 24)

24
Programming Watchdog Timer
Embedded and Industrial Computing
Appendix A
*---------------------------------------------------------------------------
---
*---------------------------------------------------------------------------
---
*/
/*
* Device Depend Definition : Winbond 83627UHG
*/
#define INDEX_PORT 0x2E
#define DATA_PORT 0x2F
#define SIO_GPIO_22_BIT 0x04
#define SIO_GPIO_23_BIT 0x08
#define SIO_GPIO_24_BIT 0x10
#define SIO_GPIO_27_BIT 0x80
#define SIO_GPIO_30_BIT 0x01
#define SIO_GPIO_31_BIT 0x02
#define SIO_GPIO_60_BIT 0x01
void enter_w83627_config(void)
{
outportb(INDEX_PORT, 0x87); // Must Do It Twice
outportb(INDEX_PORT, 0x87);
return;
}
void exit_w83627_config(void)
{
outportb(INDEX_PORT, 0xAA);
return;
}
unsigned char read_w83627_reg(int LDN, int reg)
{
unsigned char tmp = 0;
enter_w83627_config();
outportb(INDEX_PORT, 0x07); // LDN Register
outportb(DATA_PORT, LDN); // Select LDNx
outportb(INDEX_PORT, reg); // Select Register
tmp = inportb( DATA_PORT ); // Read Register
exit_w83627_config();
return tmp;
}
void write_w83627_reg(int LDN, int reg, int value)
{
enter_w83627_config();
outportb(INDEX_PORT, 0x07); // LDN Register
outportb(DATA_PORT, LDN); // Select LDNx
outportb(INDEX_PORT, reg); // Select Register
outportb(DATA_PORT, value); // Write Register
exit_w83627_config();
return;
}
/*Runtime bypass definitions */
#define RUNTIME_BYPASS_PAIR1_LDN
(9)
#define RUNTIME_BYPASS_PAIR1_REG (0xe5)
#define RUNTIME_BYPASS_PAIR1_BIT ( S I O _
GPIO_24_BIT)
#define RUNTIME_BYPASS_PAIR1_ENABLE (0)
#define RUNTIME_BYPASS_PAIR1_DISABLE ( S I O _
GPIO_24_BIT)
#define RUNTIME_BYPASS_PAIR2_LDN (8)
#define RUNTIME_BYPASS_PAIR2_REG (0xe5)
#define RUNTIME_BYPASS_PAIR2_BIT ( S I O _
GPIO_60_BIT)