W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 129

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

10. CONFIGURATION REGISTER
10.1 Chip (Global) Control Register
CR00 (only available in comply PnP mode)
CR01 (only available in comply PnP mode)
CR02 (Default 0x00)
CR03 (only available in comply PnP mode)
CR04 (only available in comply PnP mode)
CR05 (only available in comply PnP mode)
CR06 (only available in comply PnP mode)
CR07
CR20
CR21
CR22 (Default 0xff)
Bit 7-0 : IORDPRA9 - IORDPRA2 --> Set RD_DATA Port A9-A2
Bit7-0 : SISO 7-0 --> Serial Isolation
Bit 7-3 : Reserved.
Bit 2: RSTCSN --> Reset CSN to 0. Only available in comply PnP mode.
Bit 1: RTUWAIT -- > Return to Wait for Key state. Only available in comply PnP mode.
Bit 0 : SWRST --> Soft Reset.
Bit 7-0 : WAKCSN7 - WAKCSN0 --> Wake CSN
Bit 7-0 : RSODAT7 - RSODAT 0 --> Resource Data
Bit 7-1 : Reserved
Bit 0 : RSOSTAT -- > resource status bit
Bit 7-0 : CSN7 -CSN0 --> Card Select Number 7 - 0
Bit 7-0 : LDNB7 - LDNB0 --> Logical Device Number Bit 7 - 0
Bit 7-0 : DEVIDB7 - DEBIDB0 -- > Device ID Bit 7 - Bit 0 = 0x97 (read only).
Bit 7-0 : DEVREVB7 - DEBREVB0 -- > Device Rev Bit 7 - Bit 0 = 0x71 (read only).
Bit 7-6 : Reserved.
Bit 5 : URBPWD
Bit 4 : URAPWD
= 0 Power down
= 1 No Power down
= 0 Power down
= 1 No Power down
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W83977F/ W83977AF
Publication Release Date: March 1998
PRELIMINARY
Revision 0.58