W83L517D_05 Datasheet, PDF (114/133 Pages) Winbond – LPC I/O for Notebook

W83L517D/W83L517D-F
Bit 0: DSUBLGRQ
= 0 Enable UART B legacy mode IRQ selecting, then MCR bit 3 is effective on selecting IRQ
= 1 Disable UART B legacy mode IRQ selecting, then MCR bit 3 is not effective on selecting IRQ
CR28 (Default 0000,0sssb)
Bit 7 : PRT_NFDD#
= 0 Enable PRT_NFDD# Function.(Default)
= 1 Disable PRT_NFDD# Function.
Bit 6 - 3: Reserved.
Bit 2 - 0: PRTMODS2 - PRTMODS0
= 0xx Parallel Port Mode
= 100 Reserved
= 101 External FDC Mode
= 110 Reserved
= 111 External two FDC Mode
When bit 7 = 0 , the bit 2 is controlled by Pin PRT_NFDD#.
CR29 (GPIO10,GP11 Select default 0sss,s000b)
Bit 7: Reserved.
Bit [6:5] : Pin 5 Func. Select
= 00 GP11
= 01 WDTO
= 10 RTCCS#
= 11 IRQIN1
Bit[4:3] : Pin 4 Func. Select
= 00 GP10
= 01 PLED
= 10 P80CS#
= 11 IRQIN0
Bit2~0: Reserved
CR2A (GPIO1 ~ 5& FlashROM Interface
Selectd ,default 0x00)
Bit 7~5 : Reserved
Bit 4 : (PIN 81 ~ 84 ,PIN 86 ~ 89 )
= 0 GPIO 5X
= 1 Flash I/F (XA11 ~ XA18)
Bit 3 : (PIN 73 ~80 )
= 0 GPIO 4X
= 1 Flash I/F (XA3 ~ XA10)
- 114 -