Samsung S3C2451X User Manual page 185

S3C2451X RISC MICROPROCESSOR
True-IDE Mode
PIO Mode
PIO Mode Waveform
CS0, CS1
DA[2:0]
DIOR-/
DIOW-
WR
DD[15:0] or
DD[7:0]
RD
DD[15:0] or
DD[7:0]
Timing Parameter In PIO Mode
PIO mode
T1
T2 (16bit)
T2 Register (8-bit)
TEOC
T1 + T2 + TEOC
ATA_PIO_TIME (Tpara) = PIO mode (min, max) / system clock – 1
t1
Figure 8-5. PIO Mode Waveform
Table 8-1. Timing Parameter Each PIO Mode
PIO 0
(70, --)
(165, --)
(290, --)
(20, --)
(600, --)
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.
t2
PIO 1 PIO 2
(50, --) (30, --)
(125, --) (100, --)
(290, --) (290, --)
(15, --) (10, --)
(383, --) (240, --)
CF CONTROLLER
teoc
PIO 3
(30, --)
(80, --)
(80, --)
(10, --)
(180, --)
t1
PIO 4
(25, --)
(70, --)
(70, --)
(10, --)
(120, --)
8-7