W83977EF Winbond Electronics Corp America, W83977EF Datasheet - Page 92

• Manufacturer Part Number: W83977EF
• Description: Description = W83877TF Plus Kbc, GP I/O, Wake-Up, Power Fail Resume ;; Package = QFP 128
• Manufacturer: Winbond Electronics Corp America

10.0 Configuration Register
10.1 Chip (Global) Control Register
CR02 (Default 0x00)
CR07
CR20
CR21
CR22 (Default 0xff)
CR23 (Default 0xFE)
Bit 7 - 1: Reserved.
Bit 0: SWRST --> Soft Reset.
Bit 7 - 0: LDNB7 - LDNB0 --> Logical Device Number Bit 7 - 0
Bit 7 - 0: DEVIDB7 - DEBIDB0 --> Device ID Bit 7 - Bit 0 = 0x52 (read only).
Bit 7 - 0: DEVREVB7 - DEBREVB0 --> Device Rev Bit 7 - Bit 0 = 0xFx (read only).
Bit 7 - 6: Reserved.
Bit 5: URBPWD
Bit 4: URAPWD
Bit 3: PRTPWD
Bit 2, 1: Reserved.
Bit 0: FDCPWD
Bit 7 - 1: Reserved.
Bit 0: IPD (Immediate Power Down). When set to 1, it will put the whole chip into power down
= 0 Power down
= 1 No Power down
= 0 Power down
= 1 No Power down
= 0 Power down
= 1 No Power down
= 0 Power down
= 1 No Power down
mode immediately.
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Publication Release Date: April 2003
W83977EF
Revision 1.1