| 摘要 |
<p>PURPOSE:To prevent an increase of wiring and to eliminate the need for a decoder, by selecting a desired integrated circuit from plural memories or integrated circuits for peripheral control to attain data transfer with a microprocessor. CONSTITUTION:When the microprocessor MPU1 selects a specific LSI among 8 LSIs 5-1-5-8, an LSI selection signal CS is transmitted to all the LSIs 5-1-5-8 through an LSI selecting signal line 8 at first. Then, data including LSI address information, 3-bit corresponding to the information to the address of the objective LSI is transferred to the LSIs 5-1-5-8 through a serial interface data line 3. The LSIs 5-1-5-8 compares the LSI address information transferred from the MPU1 with the address correspondence information to attain further data transfer between the MPU1 and the LSI coincident with the information.</p> |
