CREATE TABLE "table1_14249278_1" (
  "bit_15" real,
  "bits_14_12" real,
  "bits_11_0" text,
  "mnemonic" text,
  "description" text
);

Question: Name the most bits 14-12 for output from accumulator to character bus
SQL: SELECT MIN("bits_14_12") FROM "table1_14249278_1" WHERE "description"='Output from accumulator to character bus';