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SanDisk 20-10-00038, Extreme III 3.6 True IDE Mode I/O Transfer Function

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Interface Description SanDisk CompactFlash Card OEM Product Manual

Table 3-22 Common Memory Function

Function Code -REG -CE2 -CE1 A0 -OE -WE D15-D8 D7-D0

Word Read Access

(16 bits) H L L X L H Odd Byte Even Byte

Word Write Access

(16 bits) H L L X H L Odd Byte Even Byte

Odd Byte Read Only

(8 bits) H L H X L H Odd Byte High Z

Odd Byte Write Only

(8 bits) H L H X H L Odd Byte Don’t Care

3.6 True IDE Mode I/O Transfer Function

This section contains valuable information on the True IDE Mode I/O Transfer function.

3.6.1 True IDE Mode I/O Function

SanDisk CompactFlash Memory cards can be configured in a True IDE Mode of operation.

Cards are configured in this mode only when the -OE input signal is grounded by the host

when power is applied to the cards. In this True IDE Mode, the PCMCIA protocol and

configuration are disabled and only I/O operations to the Task File and Data Register are

allowed. In this mode, no Memory or Attribute registers are accessible to the host.

CompactFlash cards permit 8-bit data accesses if the user issues a Set Feature Command to put

the device in 8-bit Mode.

NOTE:Removing and reinserting the card while the host computer's power

is on will reconfigure it to PC Card ATA mode from the original True

IDE Mode. To configure the card in True IDE Mode, the 50-pin

socket must be power cycled with the card inserted and -OE (output

enable) grounded by the host.

Table 3-23 defines the function of the operations for the True IDE Mode.

Table 3-23 IDE Mode I/O Function

Function Code -CE2 -CE1 A0 -IORD -IOWR D15-D8 D7-D0

Invalid Mode L L X X X High Z High Z

Standby Mode H H X X X High Z High Z

Task File Write H L 1.7h H L Don’t care Data In

Task File Read H L 1-7h L H High Z Data Out

Data Register Write H L 0 H L Odd Byte in Even Byte In

Data Register Read H L 0 L H Odd Byte Out Even Byte Out

Control Register Write L H 6h H L Don’t Care Control In

Alt Status Read L H 6h L H High Z Status Out

02/07, Rev. 12.0 3-26 © 2007 SanDisk Corporation

Contents

Main SanDisk CompactFlash Memory Card OEM Product Manual Page Page Page Table of Content s Page 1.1 General Description 1.2 Features 1.3 Scope 1.4 CompactFlash Standard 1.5 PCMCIA Standard 1.6 Related Documentation 1.7 Functional Description Page Page Page 2.1 System Environmental Specifications 2.2 System Power Requirements Page 2.3 System Performance 2.4 System Reliability 2.5 Physical Specifications Page Page 3.1 Physical Description True IDE Mode Pin Assigments are contained in Table 3-3. Table 3-3 True IDE Mode Pin Assignments 3.2 Electrical Description Page Page Page Page 3.3 Electrical Specification Table 3-8 Output Drive Characteristics Figure 3-1 Power Up/Power Down Timing for Systems supporting RESET Figure 3-2 Power Up/Power Down Timing for Systems not supporting RESET Table 3-10 Common Memory Read Timing Specification signal. Table 3-11 Common and Attribute Memory Write Timing Specification signal. Table 3-12 Attribute Memory Read Timing Specification 3.3.7 Memory Timing Diagrams Figure 3-3 Common and Attribute Memory Read Timing Diagram Figure 3-4 Common and Attribute Memory Write Timing Diagram 3.3.8 I/O Read (Input) Timing Specification Figure 3-5 I/O Read Timing Diagram Table 3-13 contains the read input timing specifications. Table 3-13 I/O Read (Input) Timing Specification 3.3.9 I/O Write (Output) Timing Specification Figure 3-6 I/O Write Timing Diagram Figure 3-7 Register Transfer to/from Device Table 3-15 Register Transfer to/from Device The PIO data transfer parameters are defined in Table 3-16. signal. Table 3-16 PIO Data Transfer to/from Device 3.4 Card Configuration SanDisk CompactFlash Card OEM Product Manual Interface Description 2007 SanDisk Corporation 3-21 Rev. 12.0, 02/07 NOTE:The location of the card configuration registers should always be Interface Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 3-22 2007 SanDisk Corporation between consecutive cycle operaitons. Table 3-19 Attribute Memory Function Table 3-20 Card Configurations Card Configuration and Status Register (cont) 3.5 I/O Transfer Function 3.6 True IDE Mode I/O Transfer Function 4.1 I/O Primary and Secondary Address Configurations 4.2 Contiguous I/O Mapped Addressing 4.3 Memory Mapped Addressing 4.4 True IDE Mode Addressing 4.5 ATA Registers Page Page Page Page Card (Drive) Address Register (cont) Page 5.1 ATA Command Set Table 5-1 Primary and Secondary I/O Decoding Page Page Page Table 5-8 Identify Device Information Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 5.2 Error Posting Page Attribute Offset Data 7 6 5 4 3 2 1 0 Content Description CIS 2007 SanDisk Corporation 6-1 Rev. 12.0, 02/07 Function CIS Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 6-2 2007 SanDisk Corporation SanDisk CompactFlash Card OEM Product Manual CIS Description Attribute Offset Data 7 6 5 4 3 2 1 0 Content Description CIS 2007 SanDisk Corporation 6-3 Rev. 12.0, 02/07 Function CIS Description SanDisk CompactFlash Card OEM Product Manual Attribute Offset Data 7 6 5 4 3 2 1 0 Content Description CIS 02/07, Rev. 12.0 6-4 2007 SanDisk Corporation Function SanDisk CompactFlash Card OEM Product Manual CIS Description Attribute Offset Data 7 6 5 4 3 2 1 0 Content Description CIS 2007 SanDisk Corporation 6-5 Rev. 12.0, 02/07 Function Configuration Index 0 CIS Description SanDisk CompactFlash Card OEM Product Manual Attribute Offset Data 7 6 5 4 3 2 1 0 Content Description CIS 02/07, Rev. 12.0 6-6 2007 SanDisk Corporation Function Interface Type SanDisk CompactFlash Card OEM Product Manual CIS Description 2007 SanDisk Corporation 6-7 Rev. 12.0, 02/07 CIS Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 6-8 2007 SanDisk Corporation SanDisk CompactFlash Card OEM Product Manual CIS Description 2007 SanDisk Corporation 6-9 Rev. 12.0, 02/07 CIS Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 6-10 2007 SanDisk Corporation SanDisk CompactFlash Card OEM Product Manual CIS Description 2007 SanDisk Corporation 6-11 Rev. 12.0, 02/07 CIS Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 6-12 2007 SanDisk Corporation SanDisk CompactFlash Card OEM Product Manual CIS Description 2007 SanDisk Corporation 6-13 Rev. 12.0, 02/07 CIS Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 6-14 2007 SanDisk Corporation SanDisk CompactFlash Card OEM Product Manual CIS Description 2007 SanDisk Corporation 6-15 Rev. 12.0, 02/07 CIS Description SanDisk CompactFlash Card OEM Product Manual 02/07, Rev. 12.0 6-16 2007 SanDisk Corporation SanDisk CompactFlash Card OEM Product Manual CIS Description 2007 SanDisk Corporation 6-17 Rev. 12.0, 02/07 Page Appendix A Ordering Information A.1 SanDisk CompactFlash Memory Card 2007 SanDisk Corporation A-1 Rev. 12.0, 02/07 To order SanDisk products directly from SanDisk, call (408) 801-1000. Page Page Page C.1 SanDisk Corporation Policy