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With this command, Host is able to receive the parameter information from this product. The protocol of this command is the same as the one for Read Sector(s). The location and the significance are shown in the Table. All the reserved bits and words are “0”.

Bit Offset 7 6 5 4 3 2 1 0 Command 7 ECh C/D/H 6 x Drive x Cyl High 5 x Cyl Low 4 x Sec Num 3 x Sec Cnt 2 x Feature 1 x

Identify Drive Information Word Address Default Value Total

Bytes Data Field Type Information 0 848Ah 2 General configuration bit significant information 1 xxxxh 2 Default number of cylinders

2 0000h 2 Reserved 3 00xxh 2 Default number of heads

4 xxxxh 2 Number of unformatted bytes per track 5 xxxxh 2 Number of unformatted bytes per sector 6 xxxxh 2 Default number of sectors per track

7-8 xxxxh 4 Number of sectors per card ( Word7=MSW,Word8=LSW) 9 0000h 2 Reserved

10-19 xxxxh 20 Serial number in ASCII (Right Justified) 20 0002h 2 Buffer type (dual ported)

21 0002h 2 Buffer size in 512byte increments

22 0000h 2 # of ECC bytes passed on Read/Write Long Commands

23-26 xxxxh 8 Firmware revision in ASCII (Rev M.ms) set by code Big Endian Byte Order in Word

27 616Ch ‘al’ 28 7465h ‘te’ 29 632Fh ‘c/’ 30 4D50h ‘MP’ 31 4920h ‘I ‘ 32 5344h ‘SD’ 33 2F4Dh ‘/M’ 34 4D43h ‘MC’ 35 2041h ‘ A’ 36 6461h ‘da’ 37 7074h ‘pt’ 38 6572h ‘er’ 39-46 2020h SP 40

Model number in ASCII (Left Justified) Big Endian Byte Order in Word.

‘altec/MPI SD/MMC Adapter ‘

47 0001h 2 Maximum of 1 sector on Read/write Multiple command 48 0000h 2 Double Word not supported

49 0200h 2 Capabilities:

DMA NOT Supported (bit8), LBA supported(bit9) 50 0000 2 Reserved

51 0100h 2 PIO data transfer cycle timing mode 1

52 0000h 2 DMA data transfer cycle timing mode Not Supported 53 0001h 2 Translation parameters are valid

54 xxxxh 2 Current numbers of cylinders 55 xxxxh 2 Current number of heads 56 xxxxh 2 Current sectors per track

57-58 xxxxh 4 Current capacity in sectors (LBAs) (Word57=LSW,Word58=MSW) 59 010xh 2 Multiple sector setting is valid

60-61 xxxxxxxxh 4 Total number of sectors addressable in LBA Mode 62-255 0000h 192 Reserved

Storage Device and has a transfer speed faster than 10MB/sec., and Not MFM encoded.

4.1.5.2. Default number of cylinders

This field indicates the number of Cylinders on card, which can be changed at Default Conversion Mode. The value is same as number of Cylinders.

4.1.5.3. Default number of heads

This field indicates the number of Heads on card, which can be changed at Default Conversion Mode.

4.1.5.4. Number of unformatted bytes per track

This field indicates the number of non-formatted byte per track on card, which can be changed at Default Conversion Mode.

4.1.5.5. Number of unformatted bytes per sector

This field indicates the number of non-formatted byte per sector on card, which can be changed at Default Conversion Mode.

4.1.5.6. Default number of sectors per track

This field indicates the number of sectors per track on card, which can be changed at Default Conversion Mode.

4.1.5.7. Number of sectors per card ( Word7=MSW,Word8=LSW) This field indicates the sector numbers on card.

4.1.5.8. Serial number in ASCII (Right Justified)

This field indicates that the product serial number is indicate in Right Justified, and rest of the part will be in blank. This field is not supported by this product.

4.1.5.9. Buffer type (dual ported) This field indicates Buffer feature.

This field indicates the revision of firmware.

4.1.5.13. Model number in ASCII

This field indicates Model No. of Adapter in Left Justify, and rest of the part will be in blank.

4.1.5.14. Maximum of 1 sector on Read/write Multiple command

This field indicates max. value of sectors to read and write by interrupt with using Read Multiple command and Write Multiple Command.

4.1.5.15. Double Word not supported

This field indicates that Adapter will not support Double Word Transfer.

4.1.5.16. Capabilities

This field indicates that Adapter support LBA mode, but not support DMA Data transfer.

4.1.5.17. PIO data transfer cycle timing mode 1

This field indicates the mode of PIO data transfer.

4.1.5.18. DMA data transfer cycle timing mode

this field indicates that Adapter will not support DMA data transfer.

4.1.5.19. Translation parameters are valid

This field has record “0001h”. This value is effective at word 54 to 58, and indicates current number of Cylinder, Head and Sector.

4.1.5.20. Current numbers of cylinders

This field indicates the number of Cylinder. which users can access under current conversion mode.

4.1.5.21. Current number of heads

This field indicates the number of Heads, which users can access under current conversion mode.

4.1.5..2.2. Current sectors per track

This field indicates the number of sectors per tracks, which users can access under current conversion mode.

4.1.5.24. Multiple sector setting is valid

Odd byte in this field records inspection flag. In even byte, number of sector that can interrupt and transfer under Read/Write Multiple mode will be recorded. Odd byte is always “01h”, and this means even byte is always effective. The value on even byte will be controlled by the value set by Set Multiple command. Even byte on this word records “00h” as a default value, and means Read/Write Multiple command is invalid. Even byte on this Adapter will , sometimes, reply “01h ”. This means only 1 sector can interrupt and transfer at Read/Write Multiple mode.

4.1.5.25. Total number of sectors addressable in LBA Mode

This field indicates the total sector numbers, which can access through LBA mode.