| 摘要 |
A data processing apparatus with a function of effecting a hang-up processing inhibits detecting retention of an access request as a hang-up, when the access request is accepted by a predetermined port. The apparatus includes a single time counting unit (76) provided in common for hang-up detection circuits (71 to 75). By this constitution, it is possible to reduce the number of hardwares, and to prevent an access request, which should not be detected as a hang-up, from being detected as a hang-up.
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