TAG_TIMESTAMP_LSB
val = reg_encode(reg, TAG_TIMESTAMP_LSB, TAG_TIMESTAMP_SHIFT);
[TAG_TIMESTAMP_LSB] = GENMASK(12, 8),
[TAG_TIMESTAMP_LSB] = GENMASK(12, 8),
[TAG_TIMESTAMP_LSB] = GENMASK(12, 8),
[TAG_TIMESTAMP_LSB] = GENMASK(12, 8),
[TAG_TIMESTAMP_LSB] = GENMASK(12, 8),
[TAG_TIMESTAMP_LSB] = GENMASK(12, 8),