| 摘要 |
PURPOSE:To exactly measure extending to 1/100sec, by providing a chronograph counter of 1/100sec digit, and processing add by an interruption signal outputted from a chronograph in case of >=1/10sec. CONSTITUTION:A chronograph counter 6 counts 1/100sec and 1/10sec, and outputs an interruption signal INT1 at every 1/10sec. Contents of the chronograph counter 6 are applied to a decoder 15 through a chrono-data bus CDB. The interruption signal INT1 adds ''1'' to a chrono-data of 1/10sec digit in an RAM14, and if carrier exists, carry to the host digit. Whenever the interruption signal INT1, etc. are applied to a clock generator 2 from a status controlling circuit 4, operation of an electronic clock of a CPU system is executed in accordance with a program. |
