MT_SAMPLING_RATE_SELECT
reg = read_mt_uint8(card, MT_SAMPLING_RATE_SELECT);
write_mt_uint8(card, MT_SAMPLING_RATE_SELECT, 0x10);
write_mt_uint8(card, MT_SAMPLING_RATE_SELECT,
uint8 sr = read_mt_uint8(card, MT_SAMPLING_RATE_SELECT);
write_mt_uint8(card, MT_SAMPLING_RATE_SELECT,
ITRACE("New rate = %#x\n", read_mt_uint8(card, MT_SAMPLING_RATE_SELECT));