| 摘要 |
<p>PURPOSE:To enable access to registers by various method, to increase the freedom of a program and to improve the access processing speed of a register by addressing the register from both line and row directions. CONSTITUTION:When address signals A2-A0 are supposed to be '110', a decoder AD6 is activated and a register array TCON32-02 is selected. If R/W=0, data on data buses DB3-DB0 are written in a latch of an inverter I1-I2 through buffers RW3-RW0 and a transfer gate TX in the TCON32-02. When R/W=1, the data in the latch of the I1-I2 are outputted to the D3-D0 through the TX in the TCON32-02 and read out to the DB3-DB0 through the RB.</p> |
