W83627EG Nuvoton Technology Corporation of America, W83627EG Datasheet - Page 207

• Manufacturer Part Number: W83627EG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EG

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

BIT
7
6
5
4
3
2
Reserved.
READ / WRITE
R / W
R / W
R / W
R / W
R / W
SEL4FDD =>
= 0 Select two FDD mode.
= 1 Select four FDD mode.
HEFRAS =>
= 0 Write 87h to location 2E twice.
= 1 Write 87h to location 4E twice.
The corresponding power-on strapping pin is RTSA# (pin 51).
LOCKREG =>
= 0 Enable R/W configuration registers.
= 1 Disable R/W configuration registers.
DSFDLGRQ =>
= 0 Enable FDC legacy mode on IRQ and DRQ selection, then DO
register (base address + 2) bit 3 is effective on selecting IRQ.
= 1 Disable FDC legacy mode on IRQ and DRQ selection, then DO
register (base address + 2) bit 3 is not effective on selecting IRQ.
DSPRLGRQ =>
= 0 Enable PRT legacy mode on IRQ and DRQ selection, then DCR
register (base address + 2) bit 4 is effective on selecting IRQ.
= 1 Disable PRT legacy mode on IRQ and DRQ selection, then DCR
register (base address + 2) bit 4 is not effective on selecting IRQ.
W83627EHF/EF, W83627EHG/EG
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DESCRIPTION