ZYD_CR251
(void) zyd_write16(sc, ZYD_CR251, (on == B_TRUE) ? on251 : 0x2f);
{ ZYD_CR253, 0xff }, { ZYD_CR251, 0x2f }, { ZYD_CR251, 0x3f }, \
{ ZYD_CR251, 0x2f } \
{ ZYD_CR251, 0x3f }, { ZYD_CR128, 0x14 }, { ZYD_CR129, 0x12 }, \