W83697UG Nuvoton Technology Corporation of America, W83697UG Datasheet - Page 27

• Manufacturer Part Number: W83697UG
• Description: IC LPC SUPER I/O 128-PQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83697UG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Supplier Unconfirmed, Lead free / RoHS Compliant

CR25 (Default 0x00)
CR26 (Default 0x00)
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Bit 7:
Bit 6:
SCTRI
URDTRI
URCTRI
Reserved
URBTRI
URATRI
PRTTRI
FDCTRI
SEL4FDD
0
1
HEFRAS
These two bits define how to enable Configuration mode. The corresponding power-on
setting pin is RTSA #(pin 49).
HEFRAS Address and Value
0
1
MEMW# Select (PIN97)
0
1
Flash ROM I/F Address Segment (000E0000h ~ 000EFFFFh) enable/disable
0
1
Enable Flash ROM Interface
0
1
PNPCSV
0
1
MEMW# Disable
MEMW# Enable
Enable
Disable
Flash ROM Interface is enabled after hardware reset
Flash ROM Interface is disabled after hardware reset
The corresponding power-on setting pin is PENROM#(pin 52)
The Compatible PnP address select registers have default values.
The Compatible PnP address select registers have no default value.
The corresponding power-on setting pin is DTRA# (pin 50).
Select two FDD mode.
Select four FDD mode.
Write 87h to the location 2E twice.
Write 87h to the location 4E twice.
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W83697UF/W83697UG
Publication Release Date: May 26, 2005
Revision A1