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0X0015 Scheda tecnica(PDF) 11 Page - Epson Company |
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0X0015 Scheda tecnica(HTML) 11 Page - Epson Company |
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11 / 49 page  4. FUNCTIONS 6 EPSON S1R72C05*** Data Sheet (Rev.1.00) XI XO Cd Rd Cg Fig.4.2 Clock generation via the internal oscillator and external resonator 4.5 Power Management This LSI includes a power management function that features six power management states: SLEEP, SNOOZE, ACTIVE60, ACT_DEVICE, ACT_HOST, and ACT_ALL. (See Fig.4.3) All function blocks are active in the ACT_ALL state (although the USB host function and USB device function cannot be used simultaneously). In the SLEEP state, however, only the circuits necessary for restarting from standby mode are active. Intermediate power management states exist between ACT_ALL and SLEEP, depending on the required activation status. ACT _ ALL Active Inactive CPU -I/F FIFO H_SIE HTM IDE-I/F ACT _ HOST CPU -I/F FIFO IDE-I/F D_SIE DTM H_SIE HTM D_SIE DTM ACT _ DEVICE CPU -I/F FIFO H_SIE HTM IDE-I/F D_SIE DTM ACTIVE 60 CPU -I/F FIFO H_SIE HTM IDE-I/F D_SIE DTM SNOOZE CPU -I/F* FIFO H_SIE HTM IDE-I/F D_SIE DTM OSC OSC OSC OSC OSC PLL PLL PLL PLL PLL SLEEP CPU -I/F* FIFO H_SIE HTM IDE-I/F D_SIE DTM OSC PLL *The CPU-I/ F is only partially active in the SLEEP and SNOOZE states, allowing access to the asynchronous access register. Fig.4.3 Power management states |
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