TCON_SHIFT
#define TCON_START(n) (1 << TCON_SHIFT(n))
#define TCON_MANUALUPDATE(n) (1 << (TCON_SHIFT(n) + 1))
#define TCON_INVERTER(n) (1 << (TCON_SHIFT(n) + 2))
#define __TCON_AUTORELOAD(n) (1 << (TCON_SHIFT(n) + 3)) /* n=0..3 */
#define TCON_MASK(n) (0x0f << TCON_SHIFT(n))