Datasheet

2.5” Solid State Disk

Transcend Information Inc.

V2.6

media is removed or changed.

V = the contents of the word is variable and may change depending on the state of the device or the commands executed

by the device.

X = the content of the word may be fixed or variable.

IDLE (E3h)

This command causes the device 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 mode is disabled.

IDLE IMMEDIATE (E1h)

This command causes the device to set BSY, enter the Idle(Read) mode, clear BSY and generate an interrupt.

INITIALIZE DEVICE PARAMETERS (91h)

This command enables the host to set the number of sectors per track and the number of tracks per heads.

READ BUFFER (E4h)

The READ BUFFER command enables the host to read a 512-byte block of data.

READ DMA (C8h)

Read data from sectors during Ultra DMA and Multiword DMA transfer. Use the SET FEATURES command to specify the

mode value. A sector count of zero requests 256 sectors.

READ DMA EXT (25h)

48-bit feature set mandatory command. Read data from sectors during Ultra DMA and Multiword DMA transfer. Use the

SET FEATURES command to specify the mode value. A sector count of zero requests 65536 sectors.

READ FPDMA QUEUED (60h)

NCQ feature set mandatory 48-bit command. This command requests that data to be transferred from the device to the

host.

READ LOG EXT (2Fh)

General purpose logging feature set mandatory 48-bit command. This command returns the specified log to the host.

Log Address Log Name Feature Set R/W Access

00h Log directory N/A RO GPL

10h NCQ Command Error NCQ RO GPL

READ MULTIPLE (C4h)

This command performs similarly to the Read Sectors command. Interrupts are not generated on each sector, but on the