hb286075a1 HITACHI, hb286075a1 Datasheet - Page 34

• Manufacturer Part Number: hb286075a1
• Description: Mega Byte Flash Card
• Manufacturer: HITACHI

HB286075A1, HB286060A1, HB286045A1, HB286030A1, HB286015A1
5. Idle (code: E3H or 97H): This command causes the Card to set BSY, enter the Idle mode, clear BSY and
generate an interrupt. If sector count is non-zero, the automatic power down mode is enabled. If the sector
count is zero, the automatic power down mode is disabled.
6. Idle Immediate (code: E1H or 95H): This command causes the Card to set BSY, enter the Idle (Read)
mode, clear BSY and generate an interrupt.
7. Initialize Drive Parameters (code: 91H): This command enables the host to set the number of sectors per
track and the number of heads per cylinder.
8. Read Buffer (code: E4H): This command enables the host to read the current contents of the card's sector
buffer.
9. Read Multiple (code: C4H): This command performs similarly to the Read Sectors command. Interrupts
are not generated on each sector, but on the transfer of a block which contains the number of sectors defined
by a Set Multiple command.
10. Read Long Sector (code: 22H or 23H): This command performs similarly to the Read Sector(s)
command except that it returns 516 bytes of data instead of 512 bytes.
11. Read Sector(s) (code: 20H, 21H): This command reads from 1 to 256 sectors as specified in the Sector
Count register. A sector count of 0 requests 256 sectors. The transfer begins at the sector specified in the
Sector Number register.
12. Read Verify Sector (code: 40H or 41H): This command is identical to the Read Sectors command,
except that DRQ is never set and no data is transferred to the host .
13. Recalibrate (code: 1XH): This command is effectively a NOP command to the Card and is provided for
compatibility purposes.
14. Seek (code: 7XH): This command is effectively a NOP command to the Card although it does perform a
range check.
15. Set Features (code: EFH): This command is used by the host to establish or select certain features.
16. Set Multiple Mode (code: C6H): This command enables the Card to perform Read and Write Multiple
operations and establishes the block count for these commands.
17. Set Sleep Mode (code: E6H or 99H): This command causes the Card to set BSY, enter the Sleep mode,
clear BSY and generate an interrupt.
18. Stand By (code: E2H or 96H): This command causes the Card to set BSY, enter the Sleep mode (which
corresponds to the ATA "Standby" Mode), clear BSY and return the interrupt immediately.
19. Stand By Immediate (code: E0H or 94H): This command causes the Card to set BSY, enter the Sleep
mode(which corresponds to the ATA "Standby" Mode), clear BSY and return the interrupt immediately.
20. Write Buffer (code: E8H): This command enables the host to overwrite contents of the Card's sector
buffer with any data pattern desired.
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