Samsung S3C2451X User Manual page 199

S3C2451X RISC MICROPROCESSOR
ATA_CFG Bits
byte_swap
atadev_irq_al
dma_dir
ata_class [3:2]
ata_iordy_en
ata_rst
[6] Determines whether data endian is little or big in 16bit
data.
0 : little endian ( data[15:8], data[7:0] )
1 : big endian ( data[7:0], data[15:8] )
[5] Device interrupt signal level
0: active high
[4] DMA transfer direction
0 : Host read data from device 1 : Host write data to
device
ATA transfer class select
0 : transfer class is PIO
1 : transfer class is PIO DMA
2,3 : reserved
[1] Determines whether IORDY input can extend data
transfer.
0 : IORDY disable( ignored )
1 : IORDY enable ( can extend )
[0] ATA device reset by this host.
0 : no reset
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Description
1: active low
1 : reset
CF CONTROLLER
R/W Reset Value
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
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