W83637HF Datasheet, PDF (132/149 Pages) Winbond – LPC I/O

W83637HF
CR70 (Default 0x00)
Bit 7 - 4 : Reserved.
Bit 3 - 0 : These bits select IRQ channel for Smart Card interface.
CRF0 (Default 0x00)
Bit 7 - 1 : Reserved.
Bit 0 SCPSNT_POL (Smart Card Present Polarity). SCPSNT polarity bit.
= 0 SCPSNT is active high.
= 1 SCPSNT is active low.
8.7 Logical Device D (MS/SD Card Interface)
CR30 (Default 0x00)
Bit 7 - 3 : Reserved.
Bit 2 : SD Card Interface Active Bit
= 0 SD card interface is inactive.
= 1 SD card interface is active.
Bit 1 : MS Card Interface Active Bit
= 0 MS card interface is inactive.
= 1 MS card interface is active.
Bit 0 : MS/SD card interface active bit.
= 0 Both MS & SD card interface is inactive.
= 1 Both MS & SD card interface is active.
CR60, CR61 (Default 0x00, 0x00)
These two registers select MS/SD Card interface base address [0x100:0xFFF] on 8-byte boundary.
CR70 (Default 0x00)
Bit 7 - 4 : Reserved.
Bit 3 - 0 : These bits select IRQ channel for MS/SD Card interface.
CR74 (Default 0x04)
Bit 7 - 3 : Reserved.
Bit 2 - 0 : These Bits Select DMA Channel for MS/SD Card Port.
0x00 = DMA0
0x01 = DMA1
0x02 = DMA2
0x03 = DMA3
0x04 - 0x07 = No DMA active
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Publication Release Date: June 25, 2003
Revision 1.3