comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense workРCounty continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work- 35 -РРCounty continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense workР二进制开关K23-K16用于DBUS[7:0]的数据输入，置数据44HРРР置控制信号为：РРР按住STEP 脉冲键，CK 由高变低，这时存放器R3 的黄色选择指示灯亮，说明选择R3 存放器。放开STEP键，CK由低变高，产生一个上升沿，数据44H被写入R3 存放器。Р注意观察：Р 1. 数据是在放开STEP键后改变的，也就是CK的上升沿数据被打入。Р 2. K1(SB)， K0(SA) 用于选择存放器。Р РР 存放器R读工作波形图РР读R0存放器РР置控制信号为：
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