HANBit
HFDOM40K3R
Sec Num(3)
X (LBA 7 – 0)
Sec Cnt(2)
Feature(1)
X
X
Seek
This command is effectively a NOP command to the CompactFlash Storage Card although it does perform a range
check of cylinder and head or LBA address and returns an error if the address is out of range.
Set Features - EFh
Bit->
7
6
5
4
3
2
1
0
Command(7) EFh
C/D/H(6)
Cyl High(5)
Cyl Low(4)
Sec Num(3)
Sec Cnt(2)
Feature(1)
X
Drive
X
X
X
X
Configure
Feature
Set Features
This command is used by the host to establish or select certain features. Table 45 defines all features that are
supported.
Feature Supported
Feature
01h
Operation
Enable 8 – bit data transfers
0Ah
55h
Enable Power Level 1 commands
Disable Read Look Ahead
66h
Disable Power on Reset(POR) establishment of defaults at Soft Reset
NOP – Accepted for backward compatibility
Disable 8 – bit data transfer
69h
81h
8Ah
96h
Disable Power Level 1 commands
NOP – Accepted for backward compatibility
Accepted for backward compatibility . Use of this Feature is not recommended
Set the host current source capability. Allows tradeoff between current drawn and
read/write speed.
97h
9Ah
BBh
CCh
4 bytes of data apply on Read/Write Long commands
Enable Power on Reset (POR) establishment of defaults at Soft Reset
Features 01h and 81h are used to enable and clear 8 bit data transfer modes in True IDE Mode. If the 01h feature
command is issued all data transfers will occur on the low order D7D0 data bus and the IOIS16 signal will not be
asserted for data register accesses.
Features 0Ah and 8Ah are used to enable and disable Power Level 1 commands. Feature 0Ah is the default
feature for the CompactFlash Storage Card with extended power.
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HANBit Electronics Co., Ltd.
Rev. 2.0 (October. 2004)
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
