CHAPTER 6 CIS Description This section describes the Card Information Structure (CIS) for SanDisk CompactFlash Memory cards. Table 6-1 Card Information Structure Attribute
Offset Data 7 6 5 4 3 2 1 0 Content Description CIS
Function
000h 01h CISTPL_DEVICE Device Info Tuple Tuple Code
002h 04h Link is 4 bytes Link to
next tuple
004h DFh Dev ID Type
Dh = I/O
W
1
Speed
7h = Ext
I/O Device, Wait State,
Extended Speed
Device ID,
WPS, Speed
006h 12h X Speed Mantissa = 2h Speed Exponent = 2h 120 n s if no wait Extended
Speed
79h
Extreme III
X Speed Mantissa = Fh Speed Exponent = 1h 80 ns if no wait Extended
Speed
008h 01h # Address Unit – 1 = 1x Side Code = 2k units (One) 2 kB of Address
Space
Device Size
00Ah FFh List End Marker End of Devices End Marker
00Ch 1Ch CISTPL_DEVICE_OC Other Conditions
Info Tuple
Tuple Code
00Eh 04h Link is 4 Bytes Link to Next
Tuple
010h 03h Reserved = 0 VCC W
A
I
T
Conditions: 3V operation
is allowed and WAIT
is used
3 V Operation,
Wait Function
012h D9h Dev ID Type
Dh = I/O
W
1
Speed = 1h I/O Device, WPS,
Speed = 250 ns
Device ID,
WPS, Speed
014h 01h # Address Unit – 1 = 1x Side Code = 2k units 2 kB of Address Space Device Size
016h FFh List End Marker End of Devices End Marker
018h 18h CISTPL_JEDEC_C JEDEC ID
Common Memory
Tuple Code
01Ah 02h Link is 2 bytes Link Length
01Ch DFh PCMCIA JEDEC Manufacturer’s ID First byte of JEDEC ID
for SanDisk PC Card
ATA 12V
Byte 1,
JEDEC ID of
Device 1
(0-2K)
01Eh 01h PCMCIA Code for PC Card-ATA No Vpp Required Second Byte of
JEDEC ID
Byte 2,
JEDEC ID
020h 20h CISTPL_MANFID Manufacturer’s ID Tuple Tuple Code
022h 04h Link is 4 bytes Link Length
024h 45h Low Byte of PCMCIA Manufacturer’s Code SanDisk JEDEC
Manufacturer’s ID
Low Byte of
PCMCIA
Mfg ID