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VR4102 Datasheet(PDF) 269 Page - NEC |
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VR4102 Datasheet(HTML) 269 Page - NEC |
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269 / 701 page ![]() CHAPTER 10 BCU (BUS CONTROL UNIT) 269 Figure 10-27. Bus Hold in Suspend Mode (a) Transition to Bus Hold from Ordinary Operation L MasterOut(Internal) HLDRQ# HLDACK# Note 1 Note 2 Note 3 BUSCLK (b) Transition to Ordinary Operation from Bus Hold L MasterOut(Internal) HLDRQ# HLDACK# Note 1 Note 2 Note 3 BUSCLK Notes 1. UUCAS#/MRAS[3]#, ULCAS#/MRAS[2]#, MRAS[1..0]# (in 16-bit data bus mode) MRAS[1..0]# (in 32-bit data bus mode) 2. UCAS#, LCAS# (in 16-bit data bus mode) UUCAS#/MRAS#[3], ULCAS#/MRAS[2]#, UCAS#, LCAS# (in 32-bit data bus mode) 3. SHB#, IOR#, IOW#, MEMR#, MEMW#, RD#, WR#, ADD[25..0], DATA[15..0], DATA[31..16]/GPIO[31..16] (in 32-bit data bus mode) Remark The dotted lines indicate high impedance. |
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