Help

• Thanks to:

• Hale Landis, IBM, PHOENIX

• T13: Pete and Kent

CF MMC SD

• CompactFlash: 16 Bits Parallel Interface• CFA 1.4 supports ATA-4

• MMC: 1 Bit Serial Interface• MMC Commands / Responses (6 bytes)

• SD: 1 or 4 Bits (evolves from MMC)• SD Commands / Responses

• SD Card: Phone, Digital Camera, Recorder• Audio, GPS, HH PC, Appliance

• SDA: >200 Members• 300 Attendees in March Meeting

Proposal Needed

• PC Host To SD Adapter communication:

• Retrieve Response data• Set bus width• Get special function registers• Get card status (Not interpreted by FW)• Retrieve protected area data• Allow future command expansion

SDA Proposal

• PC Host To SD Adapter communication:

• No direct Host Support• Unified Command codes, Protocols, Identify• Device Info in ATA Interface

• Impact to Adapter company and Application• Software

• Reserved several commands for SDA• Support current ATA commands and• protocols

Proposal and Changes

• Summit to T13 on December 2000:• Reduce commands from 6 to 4• Reduce Identify Device information to 2 bits• Summit only D1 command• Reserve D2-D4 commands• Media Card Pass Through feature set• SmartMedia, PCMCIA

• Add aborting condition on command D3• Suggested by Phoenix

ANSI T13 / SDA TG Meeting

• March 5 2001:• Kent Pryor representing T13 presented• History and Present• T13 Membership requirement• Standardization and voting policy• Activities on ATA-6 and earlier• Welcome new members• Future ATA-7 Projects

• 3 Hours of presentation, Q/A • Distribute Generic Functionality Prop

Products and Changes

• The SDA adapter vendors have implemented• the proposal as is.

• The best to them is no changes• If changes are required and are approved, • they will phase it in.

Set Feature Command

• Minimum Impact to Standard• Self contained command set

ATA vs. ATAPI

• Show as a ATA device• Reduce firmware overhead• Ready vs. Busy with DRQ

D1 Command

• Returns Media Type• Return Card Specific Data• Relative Card Address for SD card

• Return other Status like Write Protect• Use Special return value 55 AA to protect• Specification is changing, Product has to be• changed. Especially the Identify Device • information and Set Features bits