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M306V2EEFS Datenblatt(PDF) 45 Page - Renesas Technology Corp |
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M306V2EEFS Datenblatt(HTML) 45 Page - Renesas Technology Corp |
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45 / 271 page ![]() Rev.1.40 Oct 06, 2004 page 45 of 269 M306V2ME-XXXFP, M306V2EEFP Figure 2.5.7 State transition diagram of Power control mode Main clock is oscillating Sub clock is stopped CM04 = “0” BCLK : f(XIN)/16 CM07 = “0” CM06 = “0” CM17 = “1” CM16 = “1” BCLK : f(XIN)/4 CM07 = “0” CM06 = “0” CM17 = “1” CM16 = “0” BCLK : f(XIN) CM07 = “0” CM06 = “0” CM17 = “0” CM16 = “0” High-speed mode BCLK : f(XIN)/2 CM07 = “0” CM06 = “0” CM17 = “0” CM16 = “1” Medium-speed mode (divided-by-2) Medium-speed mode (divided-by-16) Medium-speed mode (divided-by-4) BCLK : f(XIN)/16 CM07 = “0” CM06 = “0” CM17 = “1” CM16 = “1” BCLK: f(XIN)/4 CM07 = “0” CM06 = “0” CM17 = “1” CM16 = “0” BCLK : f(XIN) CM07 = “0” CM06 = “0” CM17 = “0” CM16 = “0” BCLK : f(XIN)/2 CM07 = “0” CM06 = “0” CM17 = “0” CM16 = “1” High-speed mode Medium-speed mode (divided-by-2) Medium-speed mode (divided-by-16) Medium-speed mode (divided-by-4) Reset Medium-speed mode (Divided-by-8 mode) Low-speed/ low power dissipation mode Wait mode WAIT instruction Interrupt CPU operation stopped Interrupt Transition of stop mode, wait mode Transition of normal mode Normal mode Notes 1: Switch clocks after oscillation of main clock is sufficiently stable. 2: Switch clocks after oscillation of sub-clock is sufficiently stable. 3: Change CM06 after changing CM17 and CM16. 4: Transit in accordance with arrows. High-speed/ medium-speed mode Wait mode WAIT instruction Interrupt CPU operation stopped Stop mode CM10 = “1” All oscillators stopped Interrupt Stop mode CM10 = “1” All oscillators stopped Main clock is oscillating Sub-clock is stopped Medium-speed mode (divided-by-8 mode) BCLK : f(XIN)/8 CM07 = “0” CM06 = “1” CM04 = “0” CM04 = “1” (Notes 1, 3) Main clock is oscillating Sub-clock is oscillating BCLK : f(XCIN) CM07 = “1” Main clock is oscillating Sub-clock is oscillating Low-speed mode BCLK : f(XIN)/8 CM07 = “0” CM06 = “1” Medium-speed mode (divided-by-8) CM04 = “1” CM06 = “0” (Notes1, 3) CM06 = “1” CM05 = “0” CM05 = “1” Main clock is stopped Sub-clock is oscillating Low power dissipation mode BCLK : f(XCIN) CM07 = “1” CM07 = “0” (Notes 1, 3) CM07 = “1” (Note 2) Stop mode CM10 = “1” All oscillators stopped Interrupt Wait mode WAIT instruction Interrupt CPU operation stopped (See the figure below as for transition of normal mode) CM07 = “1” CM05 = “1” (Note 2) CM07 = “0” CM06 = “0” CM04 = “0” (Notes 1, 3) CM07 = “0” CM06 = “1” CM04 = “0” (Note 1) |
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