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SH79F166AP/044PR 데이터시트(PDF) 96 Page - SINOWEALTH Electronic Ltd |
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SH79F166AP/044PR 데이터시트(HTML) 96 Page - SINOWEALTH Electronic Ltd |
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96 / 113 page ![]() SH79F166A 96 8.10.4 Register Table 8.33 Power Control Register 87H Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 PCON SMOD SSTAT - - GF1 GF0 PD IDL R/W R/W R/W - - R/W R/W R/W R/W Reset Value (POR/WDT/LVR/PIN) 0 0 - - 0 0 0 0 Bit Number Bit Mnemonic Description 7 SMOD Baud rate double bit 6 SSTAT SCON[7:5] function selection bit 3-2 GF[1:0] General purpose flags for software use 1 PD Power-Down mode control bit 0: Cleared by hardware when an interrupt or reset occurs 1: Set by software to activate the Power-Down mode 0 IDL Idle mode control bit 0: Cleared by hardware when an interrupt or reset occurs 1: Set by software to activate the Idle mode Table 8.34 Suspend Mode Control Register 8EH Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 SUSLO SUSLO.7 SUSLO.6 SUSLO.5 SUSLO.4 SUSLO.3 SUSLO.2 SUSLO.1 SUSLO.0 R/W R/W R/W R/W R/W R/W R/W R/W R/W Reset Value (POR/WDT/LVR/PIN) 0 0 0 0 0 0 0 0 Bit Number Bit Mnemonic Description 7-0 SUSLO[7:0] This register is used to control the CPU enter suspend mode (Idle or Power-Down). Only consecutive instructions like below will make CPU enter suspend mode. Other wise the either SUSLO, IDL or PD bit will be cleared by hardware in the next machine cycle. Example: IDLE_MODE: MOV SUSLO, #55H ORL PCON, #01H NOP NOP NOP POWERDOWN_MODE: MOV SUSLO, #55H ORL PCON, #02H NOP NOP NOP |
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