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Preliminary
CF CONTROLLER
S3C2451X RISC MICROPROCESSOR
8-18
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.
ATA_SWRST REGISTER
Register Address
R/W
Description
Reset
Value
ATA_SWRST
0x4B80190C
R/W
ATA S/W RESET register
0x0000_0000
ATA_SWRST Bits
Description
R/W
Reset
Value
Reserved [31:1]
Reserved bits
R
0x0
ata_swrstn
[0]
Software reset for the ATA host
0: No reset
1: Software reset for all ATA host module.
After software reset, to continue transfer, user must
configure all registers of host controller and device
registers.
R/W 0x0
ATA_IRQ REGISTER
Register Address
R/W
Description
Reset
Value
ATA_IRQ
0x4B801910
R/W
ATA IRQ register
0x0000_0000
ATA_IRQ Bits
Description
R/W
Reset
Value
Reserved [31:5]
Reserved bits
R
0x0
sbuf_empty_int
[4]
When source buffer is empty.
CPU can clear this interrupt by writing “1”.
R/W 0x0
tbuf_full_int
[3]
When track buffer is half full.
CPU can clear this interrupt by writing “1”.
R/W 0x0
atadev_irq_int
[2]
When ATA device generates interrupt.
CPU can clear this interrupt by writing “1”.
R/W 0x0
reserved [1]
reserved
R/W
0x0
xfr_done_int
[0]
When all data transfers are finished.
CPU can clear this interrupt by writing “1”.
R/W 0x0