TS2GCF200I datasheet(78/87 Pages) TRANSCEND

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Transcend Information Inc.

V1.2

This field contains the model number for this product and is left justified and padded with spaces (20h).

Word 47: Read/Write Multiple Sector Count

Bits 15-8 shall be the recommended value of 80h or the permitted value of 00h. Bits 7-0 of this word define

the maximum number of sectors per block that the CompactFlash Storage Card supports for Read/Write

Multiple commands.

Word 49: Capabilities

Bit 13: Standby Timer

If bit 13 is set to 1 then the Standby timer is supported as defined by the IDLE command

If bit 13 is set to 0 then the Standby timer operation is defined by the vendor.

Bit 11: IORDY Supported

If bit 11 is set to 1 then this CompactFlash Storage Card supports IORDY operation.

If bit 11 is set to 0 then this CompactFlash Storage Card may support IORDY operation.

Bit 10: IORDY may be disabled

Bit 10 shall be set to 0, indicating that IORDY may not be disabled.

Bit 9: LBA supported

Bit 9 shall be set to 1, indicating that this CompactFlash Storage Card supports LBA mode addressing. CF

devices shall support LBA addressing.

Bit 8: DMA Supported If bit 8 is set to 1 then Read DMA and Write DMA commands are supported. Bit 8

shall be set to 0. Read/Write DMA commands are not currently permitted on CF cards.

PIO Data Transfer Cycle Timing Mode

The PIO transfer timing for each CompactFlash Storage Card falls into modes that have unique parametric

timing specifications. The value returned in Bits 15-8 shall be 00h for mode 0, 01h for mode 1, or 02h for

mode 2. Values 03h through FFh are reserved.

Translation Parameters Valid

Bit 0 shall be set to 1 indicating that words 54 to 58 are valid and reflect the current number of cylinders,

heads and sectors. If bit 1 of word 53 is set to 1, the values in words 64 through 70 are valid. If this bit is

cleared to 0, the values reported in words 64-70 are not valid. Any CompactFlash Storage Card that

supports PIO mode 3 or above shall set bit 1 of word 53 to one and support the fields contained in words 64

through 70.

Current Number of Cylinders, Heads, Sectors/Track

These fields contains the current number of user addressable Cylinders, Heads, and Sectors/Track in the

current translation mode.

Current Capacity

This field contains the product of the current cylinders times heads times sectors.

Multiple Sector Setting

Bits 15-9 are reserved and shall be set to 0.

Bit 8 shall be set to 1 indicating that the Multiple Sector Setting is valid.

Bits 7-0 are the current setting for the number of sectors that shall be transferred per interrupt on

Read/Write Multiple commands.

Total Sectors Addressable in LBA Mode

This field contains the total number of user addressable sectors for the CompactFlash Storage Card in

LBA mode only.

Multiword DMA transfer

Bits 15 through 8 of word 63 of the Identify Device parameter information is defined as the Multiword DMA

mode selected field. If this field is supported, bit 1 of word 53 shall be set to one. This field is bit significant.

Only one of bits may be set to one in this field by the CompactFlash Storage Card to indicate the multiword

DMA mode which is currently selected. Of these bits, bits 15 through 11 are reserved. Bit 8, if set to one,

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