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W83977EF-AW Datasheet(PDF) 86 Page - Winbond |
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W83977EF-AW Datasheet(HTML) 86 Page - Winbond |
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86 / 142 page  W83977EF-AW/W83977EG-AW -84- 12. CONFIGURATION REGISTER 12.1 Chip (Global) Control Register CR02 (Default 0x00) Bit 7 - 1: Reserved. Bit 0: SWRST --> Soft Reset. CR07 Bit 7 - 0: LDNB7 - LDNB0 --> Logical Device Number Bit 7 - 0 CR20 Bit 7 - 0: DEVIDB7 - DEBIDB0 --> Device ID Bit 7 - Bit 0 = 0x52 (read only). CR21 Bit 7 - 0: DEVREVB7 - DEBREVB0 --> Device Rev Bit 7 - Bit 0 = 0xFx (read only). CR22 (Default 0xff) Bit 7 - 6: Reserved. Bit 5: URBPWD = 0 Power down = 1 No Power down Bit 4: URAPWD = 0 Power down = 1 No Power down Bit 3: PRTPWD = 0 Power down = 1 No Power down Bit 2, 1: Reserved. Bit 0: FDCPWD = 0 Power down = 1 No Power down CR23 (Default 0xFE) Bit 7 - 1: Reserved. Bit 0: IPD (Immediate Power Down). When set to 1, it will put the whole chip into power down mode immediately. |
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