Cactus OEM Grade -245S Series Product Manual

Contents

Cactus OEM Grade -245S Series Product Manual Manual pdf 20 page image

Cactus Technologies, LimitedConflicts may occur on the host data bus when this bit is provided by a Floppy Disk Controlleroperating at the same addresses as the SSD. Following are some possible solutions tothis problem:1. Locate the SSD at a non-conflicting address (i.e., Secondary address (377) when a FloppyDisk Controller is located at the Primary addresses).2. Do not install a Floppy and a SSD in the system at the same time.3. Implement a socket adapter that can be programmed to (conditionally) tri-state D7 of I/0address 3F7/377 when a SSD product is installed and conversely to tri-state D6-D0 ofI/O address 3F7/377 when a floppy controller is installed.4. Do not use the SSD’s Drive Address register. This may be accomplished by either a) Ifpossible, program the host adapter to enable only I/O addresses 1F0-1F7, 3F6 (or 170-177, 176) to the SSD or b) if provided use an additional Primary/Secondaryconfiguration in the SSD that does not respond to accesses to I/O locations 3F7 and377. With either of these implementations, the host software must not attempt to useinformation in the Drive Address Register.Bit 6 (-WTG) This bit is 0 when a write operation is in progress, otherwise, it is 1.Bit 5 (-HS3) This bit is the negation of bit 3 in the Drive/Head register.Bit 4 (-HS2) This bit is the negation of bit 2 in the Drive/Head register.Bit 3 (-HS1) This bit is the negation of bit 1 in the Drive/Head register.Bit 2 (-HS0) This bit is the negation of bit 0 in the Drive/Head register.Bit 1 (-nDS1) This bit is 0 when drive 1 is active and selected.Bit 0 (-nDS0) This bit is 0 when the drive 0 is active and selected.6.ATA Command DescriptionThis section defines the ATA command set supported by Cactus Technologies® mSATA SSDs.6.1. ATA Command SetTable 5-6 summarizes the supported ATA command set .Table 5-6. ATA Command SetCOMMAND CodeCheck Power Mode E5h, 98hData Set Management 06hExecute Drive Diagnostic 90hFlush Cache E7hFlush Cache Ext EAhIdentify Drive EChIdle E3h, 97hIdle Immediate E1h, 95hInitialize Drive Parameters 91hNOP 00hRead Buffer E4hRead DMA C8hRead DMA Ext 25hRead FPDMA Queued 60hRead Multiple C4hRead Multiple Ext 29hRead Sector(s) 20h, 21hRead Sector(s) Ext 24hCactus Technologies Limited OEM Grade -245S Series mSATA SSD Product Manual v1.2 20