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SanDisk Industrial Grade CompactFlash 5000 Product Manual
© 2007 SanDisk® Corporation 32 July 2007
Table 26: Card Configurations
Conf5 Conf4 Conf3 Conf2 Conf1 Conf0 Disk Card Mode
0 0 0 0 0 0 Memory Mapped
0 0 0 0 0 1 I/O Mapped; any 16-byte system
decoded boundary
0 0 0 0 1 0 I/O Mapped; 1F0-1F7/3F6-3F7
0 0 0 0 1 1 I/O Mapped; 170-177/376-377
3.4.3
Card Configuration and Status Register (Address
202h in Attribute Memory)
The Card Configuration and Status Register contain information about the
condition of the card
.
Operation D7 D6 D5 D4 D3 D2 D1 D0
Read Changed SigChg IOis8 0 0 PwrDwn Int 0
Write 0 SigChg IOis8 0 0 PwrDwn 0 0
Bit Name Description
D7 Changed Indicates that one or both of the Pin Replacement Register CRdy, or
CWProt bits are set to "1". When the Changed bit is set, -STSCHG Pin
46 is held low if the SigChg bit is a "1" and the card is configured for
the I/O interface.
D6 SigChg The host sets and resets this bit to enable and disable a state-change
"signal" from the Status Register, the Changed bit control pin 46 the
Changed Status signal. If no state change signal is desired, this bit
should be set to zero "0" and pin 46 (-STSCHG) signal will be held high
while the card is configured for I/O
D5 IOis8 The host sets this bit to one "1" if the card is to be configured in an 8-bit
I/O mode. The card is always configured for both 8- and 16-bit I/O, so
this bit is ignored.
D2 PwrDwn This bit indicates whether the host requests the card to be in the power
saving or active mode. When the bit is "1" the card enters a power
down mode. When "0", the host requests that the card enter the active
mode. The PCMCIA Rdy/-Bsy value becomes BUSY when this bit is
changed. Rdy/-Bsy will not become Ready until the power state
requested has been entered. The card automatically powers down
when it is idle and powers back up when it receives a command
D1 Int This bit represents the internal state of the interrupt request. This value
is available whether or not I/O interface has been configured. This
signal remains true until the condition that caused the interrupt request
has been serviced. If interrupts are disabled by the -IEN bit in the
Device Control Register, this bit is a "0".
- SanDisk Industrial Grade 1
- CompactFlash 5000 1
- Table of Contents 2
- List of Tables 5
- Introduction 8
- Features 9
- CompactFlash Standard 10
- PCMCIA Standard 10
- Related Documentation 10
- Functional Description 10
- Technology Independence 11
- Defect and Error Management 11
- Bad Block Management 12
- Automatic Sleep Mode 12
- Power Supply Requirements 12
- Wear Leveling 12
- Product Specifications 14
- System Power Requirements 15
- System Performance 15
- System Reliability 16
- Physical Specifications 16
- Regulatory Compliance 17
- Traceability 17
- Interface Description 18
- Electrical Description 20
- Table 10: Signal Description 21
- Electrical Specification 24
- Output Drive Characteristics 25
- Power Up/Down Timing 26
- Common Memory Read Timing 27
- Table 16 (continued) 28
- Memory Timing Diagrams 29
- I/O Read Timing Diagram 30
- True IDE Mode 32
- Card Configuration 35
- Attribute Memory Function 36
- Attribute Memory function 37
- Attribute Memory) 38
- 202h in Attribute Memory) 39
- Memory) 40
- I/O Transfer Function 41
- Configurations 43
- Memory Mapped Addressing 45
- True IDE Mode Addressing 46
- ATA Registers 46
- Read Only) 47
- Device Control Register 50
- Offset Fh) 50
- ATA Command Description 52
- Check Power Mode–98H, E5H 53
- Erase Sector(s)–C0H 54
- Format Track–50H 55
- Identify Device–ECH 55
- Idle–97H, E3H 63
- Idle Immediate–95H, E1H 63
- Read Buffer–E4H 64
- Read DMA Command–C8H, C9H 64
- Read Multiple–C4H 65
- Read Long Sector–22H, 23H 66
- Read Sector(s)–20H, 21H 66
- Recalibrate–1XH 67
- Request Sense–03H 67
- Seek–7XH 68
- Set Features–EFH 69
- Set Multiple Mode–C6H 70
- Set Sleep Mode–99H, E6H 70
- Standby–96H, E2H 71
- Standby Immediate–94H, E0H 71
- Translate Sector–87H 72
- Wear Level–F5H 72
- Write Buffer–E8H 73
- Write DMA Command–CAH, CBH 73
- Write Long Sector–32H, 33H 73
- Write Multiple Command–C5H 74
- Write Sector(s)–30H, 31H 75
- Write Verify Sector(s)–3CH 76
- Error Posting 77
- CIS Description 78
- I. Warranty Statement 95
- II. General Provisions 95
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