HB28C048A6 Datasheet, PDF (48/66 Pages) Hitachi Semiconductor – FLASH ATA Card

HB28C048/032/016A6
2. Sector write: 1 sector write procedure after the card configured I/O interface is shown as follows.
Start
Set the cylinder low / high register
I/O Access, INDEX=1
Set the head No. of drive head register
Set the sector number register
Set "01H" in sector count register
(1) Set the logical sector number
Set "30H" in command register
(2)
Read the status register
N
"58H"?
Y
Write 256 times the data register
(512 bytes)
Read the status register
N
"50H"?
Y
Wait the command input
(3)
(4) Burst data transfer
(5)
48