W83697UF Ver la hoja de datos (PDF) - Winbond

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W83697UF

WINBOND LPC I/O

Winbond 

W83697UF/W83697UG

Bit 5:

Bit 4:

Bit 3:

Bit 2:

Bit 1:

Bit 0:

LOCKREG

0 Enable R/W Configuration Registers.

1 Disable R/W Configuration Registers.

Reserved

DSFDLGRQ

0

Enable FDC legacy mode on IRQ and DRQ selection, then DO register bit 3 is

effective on selecting IRQ

1

Disable FDC legacy mode on IRQ and DRQ selection, then DO register bit 3 is not

effective on selecting IRQ

DSPRLGRQ

Enable PRT legacy mode on IRQ and DRQ selection, then DCR bit 4 is effective on

0

selecting IRQ

Disable PRT legacy mode on IRQ and DRQ selection, then DCR bit 4 is not effective

1

on selecting IRQ

DSUALGRQ

0

Enable UART A/C legacy mode IRQ selecting, then HCR bit 3 is effective on

selecting IRQ

1

Disable UART A/C legacy mode IRQ selecting, then HCR bit 3 is not effective on

selecting IRQ

DSUBLGRQ

0

Enable UART B/D legacy mode IRQ selecting, then HCR bit 3 is effective on

selecting IRQ

1

Disable UART B/D legacy mode IRQ selecting, then HCR bit 3 is not effective on

selecting IRQ

CR28 (Default 0x00)

Bit [7:4]: Reserved.

Bit [3]: Flash ROM I/F Address Segment (FFE80000h ~ FFEFFFFFh) enable/disable

0 Disable

1 Enable

Bit [2:0]: PRTMODS2 - PRTMODS0

0xx Parallel Port Mode

100 Reserved

101 External FDC Mode

110 Reserved

111 External two FDC Mode

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