Datasheet

 Read Buffer - E4h
The Read Buffer command enables the host to read the current contents of the CompactFlash Storage Card’s
sector buffer. This command has the same protocol as the Read Sector(s) command.
 Write Buffer - E8h
 Check Power Mode - 98h or E5h
If the CompactFlash Storage Card is in, going to, or recovering from the sleep mode, the CompactFlash Storage
Card sets BSY, sets the Sector Count Register to 00h, clears BSY and generates an interrupt.
If the CompactFlash Storage Card is in Idle mode, the CompactFlash Storage Card sets BSY, sets the Sector
Count Register to FFh, clears BSY and generates an interrupt.
 Idle - 97h or E3h