W83637HF Datasheet, PDF (111/149 Pages) Winbond – LPC I/O

W83637HF
CR2B(GPIO multiplexed pin selection register 2. VCC powered. Default 0XC0), continued
Bit 3 : PIN88S
= 0 IRRX
= 1 GP25
Bit 2 : PIN87S
= 0 IRTX
= 1 GP26
Bit 1-0 :PIN 2S
= 00 SCLED.
= 01 SMI#.
= 10 IRQIN1 (select IRQ resource through CRF4 Bit 7-4 of Logical Device8) SMI#
= 11 Reserved.
CR2C (Default 0x00)
Bit 7-1 : Reserved
Bit 0 : MS/SD Multi-Function Pin Select(Pin 58,75,91-96)
= 0 Memory Stick
= 1 Secure Digital
CR2E (Default 0x00)
Test Modes: Reserved for Winbond.
CR2F (Default 0x00)
Test Modes: Reserved for Winbond.
8.3.1 Logical Device 0 (FDC)
CR30 (Default 0x01 if PNPCSV = 0 during POR, default 0x00 otherwise)
Bit 7 - 1 : Reserved.
Bit 0 = 1 Activates the logical device.
= 0 Logical device is inactive.
CR60, CR 61 (Default 0x03, 0xf0 if PNPCSV = 0 during POR, default 0x00, 0x00 otherwise)
These two registers select FDC I/O base address [0x100:0xFF8] on 8 byte boundary.
CR70 (Default 0x06 if PNPCSV = 0 during POR, default 0x00 otherwise)
Bit 7 - 4 : Reserved.
Bit 3 - 0 : These bits select IRQ resource for FDC.
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Publication Release Date: June 25, 2003
Revision 1.3