5.1处理器总线 GND 40 c Al4 39 L15 38 A16/S A12-4 37A17S4 A=5 36A8 A0=6 35A9/S6 SSo (HIGh 908 33F MN/MX ADI 32FRD AD6-10 CPU 3IFHOLD(RQ/GTo) AD 30F HLDA(RQ/GT A 29F WROLOCK AD3-13 28⑩oM(2 14 27HDT/R(SI) AD1=15 26FDEN(SO ADo -16 25FALE(OSO NM+17 24FINTA(QS1) INTR-18 23HTEST CLK-19 rEADY GND-20 21FRESET 返回5.1 处理器总线 返回