Preliminary
CF CONTROLLER
S3C2451X RISC MICROPROCESSOR
8-22
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_PIO_TIME REGISTER
Register Address
R/W
Description
Reset
Value
ATA_PIO_TIME 0x4B80192C R/W ATA
PIO Timing Control register
0x0001_C23
8
ATA_PIO_TIME Bits
Description
R/W Reset
Value
Reserved [31:20]
Reserved bits
R
0x0
pio_teoc
[19:12] PIO timing parameter, teoc, end of cycle time
It shall not have zero value.
teoc = HCLK time * (pi 1)
R/W 0x1C
pio_t2
[11:4]
PIO timing parameter, t2, DIOR/Wn pulse width
It shall not have zero value.
t2 = HCLK time * ( 1)
R/W 0x23
pio_t1
[3:0]
PIO timing parameter, t1, address valid to DIOR/Wn
t1 = HCLK time * ( 1)
R/W 0x8
ATA_XFR_NUM REGISTER
Register Address
R/W
Description
Reset
Value
ATA_XFR_NUM
0x4B801934
R/W
ATA Data Transfer Number register
0x0000_0000
ATA_XFR_NUM Bits
Description
R/W Reset
Value
xfr_num
[31:1]
Data transfer number.
R/W
0x00000000
Reserved [0]
Reserved
bits
R
0x0
ATA_XFR_CNT REGISTER
Register Address
R/W
Description
Reset
Value
ATA_XFR_CNT
0x4B801938
R/W
ATA Data Transfer Counter register
0x0000_0000
ATA_XFR_CNT Bits
Description
R/W Reset
Value
xfr_cnt [31:1]
Current
remaining
transfer counter. This value counts
down from ATA_XFR_NUM. It goes to zero when pre-
defined all data has been transferred.
R/W 0x00000000
Reserved [0]
Reserved
bits
R
0x0