User Manual

CompactFlash Memory Card Interface Description
3-2 CompactFlash
®
Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION
PC Card Memory Mode
PC Card I/O Mode True IDE Mode
Pin
Num
Signal
Name
Pin
Type
In, Out
4
Type
Pin
Num
Signal
Name
Pin
Type
In, Out
4
Type
Pin
Num
Signal
Name
Pin
Type
In, Out
4
Type
25 -CD2 O Ground 25 -CD2 O Ground 25 -CD2 O Ground
26 -CD1 O Ground 26 -CD1 O Ground 26 -CD1 O Ground
27 D11
1
I/O I1Z,OZ3 27 D11
1
I/O I1Z,OZ3 27 D11
1
I/O I1Z,OZ3
28 D12
1
I/O I1Z,OZ3 28 D12
1
I/O I1Z,OZ3 28 D12
1
I/O I1Z,OZ3
29 D13
1
I/O I1Z,OZ3 29 D13
1
I/O I1Z,OZ3 29 D13
1
I/O I1Z,OZ3
30 D14
1
I/O I1Z,OZ3 30 D14
1
I/O I1Z,OZ3 30 D14
1
I/O I1Z,OZ3
31 D15
1
I/O I1Z,OZ3 31 D15
1
I/O I1Z,OZ3 31 D15
1
I/O I1Z,OZ3
32 -CE2
1
I I3U 32 -CE2
1
I I3U 32 -CS1
1
I I3Z
33 -VS1 O Ground 33 -VS1 O Ground 33 -VS1 O Ground
34 -IORD I I3U 34 -IORD I I3U 34 -IORD I I3Z
35 -IOWR I I3U 35 -IOWR I I3U 35 -IOWR I
I3Z
36 -WE I I3U 36 -WE I I3U 36 -WE
3
I I3U
37 RDY/BSY O OT1 37 IREQ O OT1 37 INTRQ O OZ1
38 VCC Power 38 VCC Power 38 VCC Power
39 -CSEL I I2Z 39 -CSEL I I2Z 39 -CSEL I I2U
40 -VS2 O OPEN 40 -VS2 O OPEN 40 -VS2 O OPEN
41 RESET I I2Z 41 RESET I I2Z 41 -RESET I I2Z
42 -WAIT O OT1 42 -WAIT O OT1 42 IORDY O ON1
43 -INPACK O OT1 43 -INPACK O OT1 43 -INPACK O OZ1
44 -REG I I3U 44 -REG I I3U 44 -REG
3
I I3U
45 BVD2 I/O I1U,OT1 45 -SPKR I/O I1U,OT1 45 -DASP I/O I1U,ON1
46 BVD1 I/O I1U,OT1 46 -STSCHG I/O I1U,OT1 46 -PDIAG I/O I1U,ON1
47 D08
1
I/O I1Z,OZ3 47 D08
1
I/O I1Z,OZ3 47 D08
1
I/O I1Z,OZ3
48 D09
1
I/O I1Z,OZ3 48 D09
1
I/O I1Z,OZ3 48 D09
1
I/O I1Z,OZ3
49 D10
1
I/O I1Z,OZ3 49 D10
1
I/O I1Z,OZ3 49 D10
1
I/O I1Z,OZ3
50 GND Ground 50 GND Ground 50 GND Ground
NOTE: 1. These signals are required only for 16-bit access and not required when installed in 8-bit systems. For lowest power
dissipation, leave these signals open.
2. Should be grounded by the host.
3. Should be tied to VCC by the host.
4. Please refer to Section 3.3 for definitions of In, Out type.