CF extend 166/167
CompactFlash™-to-PC Card Extender/Adapter
User’s Manual
Preliminary
M200055-00
May 2000
Sycard Technology
1180-F Miraloma Way
Sunnyvale, CA 94086
(408) 749-0130
(408) 749-1323 FAX
http://www.sycard.com
CompactFlash™ is a trademark of the CompactFlash Association
CFextend 166/167 User's Manual Page 1
1.0 Introduction
Sycard Technology's CF extend 166 and 167 CompactFlash to 16-bit PC Card extender cards allows a standard 68-pin
16-bit PC Cards to be plugged into a 50-pin CompactFlash socket.
• Low profile type I enclosure compatible with all CompactFlash hosts
• Flexible printed circuit allows for many different mounting configurations
• Large ground plane reduces signal integrity problems
• CFextend 166 for 3.3V PC Cards and CFextend 167 for 5V PC Cards
2.0 Using the CF extend 166/167
The CFextend 166 and 167 are designed to connect the 50 pin CompactFlash interface to the 68-pin 16-bit PC Card
interface.
Caution: Never use the CFextend 166 or 167 without first determining if the PC Card/CompactFlash host
combination is electrically compatible. Severe damage to the CompactFlash host and/or the PC Card may
result. See the frequently asked questions in Appendix A for more information.
Using the CF extend 166/167 is straightforward. The extender card is inserted into the desired slot in the host system.
Then the 68 pin 16-bit PC-Card is inserted into the card connector. The printed circuit board is designed to flex to
allow mounting in a variety of positions. Once the PC Card is in the desired position it may be fastened down with a
strap, adhesive tape, Velcro or similar material. Although the flexible PCB is constructed of a high strength Kapton
material, it is recommended that bending and flexing of the PCB be limited.
Caution: Insertion and removal of the extender and PC Card should be done with care. The CF Card's
fragile connectors may be broken or bent if improper force is used. Both card and extender should be
inserted straight without any lateral movement or force. Proper care and use of the extender card will insure
years of trouble free operation.
2.1 Differences between the CompactFlash and 16-bit PC Card Interface
The following tables illustrate some of the differences between the CompactFlash and PC Card standards.
CompactFlash 16-bit PC Card
Pins 50 68
Vcc Card must support both 3.3V and 5V Card supports 5V and/or 3.3V
Address Lines 11 26
Power Consumption 70mA Max 3.3V 100mA 5V 1A Max
Vpp Programming Power None Yes
True IDE Mode Required for ATA cards Not Specified for ATA cards
Logic Level CMOS TTL
Table 2.1-1 CompactFlash vs. 16-bit PC Cards.
1994-2000 Sycard Technology M200055-00
Page 2 CFextend 166/167 User's Manual
Parameter CompactFlash Card 16-bit PC Card
Vcc Card must support 3.3V and5VCard can support 5V
and/or 3.3V
Power Consumption 70mA Max 3.3V 100mA 5V 1A Max
Vpp Programming Power None Yes, Vpp1 and Vpp2
Logic Level CMOS TTL
Max Wait time 350nS 12uS
Pull-up resistors 50K 10K
Table 2.1-2 CompactFlash and 16-bit PC Card Electrical Differences
2.3 The CompactFlash to 16-bit PC Card Interface
The CF extend 166/167 allows the user to test a 16-bit PC Card device in a CompactFlash socket. Since the
CompactFlash interface is a subset of the 16-bit PC Card interface, it is expected that many PC Cards will not operate
in a CF environment. The following table outlines the differences between the CompactFlash and 16-bit PC Card
interface and how the extender handles the differences.
CompactFlash Signal PC Card-16 Signal Notes
A[10:0] A[10:0]
N.A. A[25:11] A[25:11] to the PC Card are tied to
ground on the CFextend 166/167
PC boards.
D[15:0] D[15:0]
CE[2:1] CE[2:1]
VS[2:1] VS[2:1]
REG# REG#
WE# WE#
OE# OE#
BVD[2:1] BVD[2:1]
RDY/IRQ RDY/IRQ
IORD# IORD#
IOWR# IOWR#
RESET RESET
INP# INP#
#CD[2:1] #CD[2:1]
WAIT# WAIT#
WP/IO16# WP/IO16#
N.A. Vpp1 Not Connected
N.A. Vpp2 Not Connected
CSEL# N.A. Not Connected
VCC VCC
GND GND
M200055-00
1994-2000 Sycard Technology
Appendix A Page A-1
Appendix A - Frequently Asked Questions
Q1: What kind of CompactFlash (CF) to PC Card adapters does Sycard manufacture?
A1: Sycard produces three types of CF-to-PC Card adapters:
• CF extend 165 - CompactFlash-to-PC Card adapter development board.
• CF extend 166 - CompactFlash-to-3.3V PC Card flexible adapter
• CF extend 167 - CompactFlash-to-5.0V PC Card flexible adapter
Q2: What are the differences between the CF extend 165 and the CF extend 166/167?
A2: The CF extend 165 is a development board used to determine if a 68-pin PC Card will operate in a
CompactFlash™ socket. The CF extend 165 has test points, current measurement jumpers and LEDs to help
determine if a PC Card is compatible with the CompactFlash™ interface. A person with sufficient hardware
and software knowledge of the PC Card/CompactFlash™ interface should make these decisions. Once the
determination that the PC Card/CompactFlash™ host combination is compatible, the end user may use the
CF extend 166 or 167 adapters. The CF extend 166/167 models do not have exposed test points or any other
features for debug or test.
Q3: What is the difference between the CF extend 166 and 167?
A3: The CF extend 167 is designed for 5V keyed PC Cards and the CF extend 166 is designed for 3.3V
keyed PC Cards.
Q4: If I plug a <any PC Card> into the CF extend 165/166/167 will it work in my CompactFlash™ slot on my
<any CompactFlash™ host computer/device>?
A4: This is the most common question we receive about the CF extend CF-to-PC Card adapters. Although the
adapters will allow any 16-bit PC Card to be adapted to a CompactFlash™ slot, many situations may prevent the
card from working including:
• Power consumption of the PC Card is too high for the CompactFlash slot
• CompactFlash™ host does not have software support for the PC Card
• PC Card may need Vpp voltage that the CompactFlash™ interface does not support
• PC Card may require more address lines than the CompactFlash™ interface supports
• CompactFlash™ host may not support PC Card I/O devices
• PC Card may operate at TTL logic levels that the CompactFlash™ host may not accept
• CompactFlash™ host may only support Vcc at 3.3V
The CF extend 165 is intended as a development tool for technically competent personnel. Users should have a
good technical understanding of the CompactFlash™ and PC Card interfaces. If you don't know the difference
between CMOS and TTL logic levels or what a tuple is then you should seek out a person that does. Once it has
been determined if a particular PC Card is compatible and has tested it with the CFextend 165, the CFextend 166
or 167 can be specified for use by end users.
Q5: What kind of problems can I expect when I use the CF extend 165/166/167 CF-to-PC Card adapters?
A5: The most common problem would be software support. Most PC cards were designed to operate in x86
Wintel based computers (Intel/Microsoft). In most cases, drivers are only supplied for this class of machine.
Other common problems are listed in the previous answer.
Q6: I need more storage capacity on my digital camera. Can I use the CF extend 166/167 to adapt a PC Card
flash disk to work in my CompactFlash™ based camera?
A6: See the answer to question 4.
1994-2000 Sycard Technology M200055-00
Page A-2 Appendix A
Q7: If I use the CF extend CF-to-PC Card adapters, is there a possibility of damaging my computer?
A7: Yes! The CompactFlash™ Specification designates that a card only draw 100mA maximum at 5V and
70mA max at 3.3V. PC Cards may draw as much as 1A. If your CompactFlash™ host socket does not have
overcurrent protection, plugging in a high power PC Card may cause damage.
Q8: Can I damage my PC card or computer if I use the wrong adapter (CF extend 166 or 167)?
A8: Yes, if a 3.3V only PC Card is plugged into a 5V host damage to the card and/or host may occur.
Remember, the CompactFlash™ host and PC Card combination must be pre-qualified by a technically
competent person before attempting to power the PC Card. Never use the CF extend 166/167 without first
understanding these risks.
Q9: Doesn't the PC Card have mechanical keying to prevent a 3.3V card from being plugged into a 5V socket?
A9: Yes. However, this keying is not available in the CompactFlash™ format. With the CFextend 166/167,
it is possible to plug a 5V card into a 3.3V socket or a 3.3V card into a 5V socket.
Q10: Can I connect an external power supply to the CF extend 166/167 to power a high powered PC Card?
A10: No, the CFextend 166 or 167 does not support external power supplies. Any attempt to wire in an
external power supply may cause damage to the CompactFlash host or PC Card.
Q11: What does the CF extend 167 do with the unused address lines on the PC Card?
A11: A[25:11] are tied to directly to signal ground through a two pull-down resistors.
Q12: Will Sycard Technology guarantee that the CF extend CF-to-PC Card adapters will operate with my
particular PC Card/host computer application?
A12: No. The CF extend CF-to-PC Card adapters are sold as development tools for engineers working on
developing CompactFlash™ cards, hosts and software. Purchasers should understand that they might need to
make modifications to hardware and/or software to get a particular card/host combination to work. Sycard
Technology only guarantees that the CF extend CF-to PC Card adapters are free from manufacturing defects
and meets its published specifications.
Q13: What kind of help can Sycard Technology give me to get my PC Card working with CompactFlash™
host?
A13: Sycard Technology provides full schematics of the CF extend CF-to-PC Card adapters. Technical
documentation on the PC Card Standard and the CompactFlash™ Standard may be obtained from PCMCIA
and the CompactFlash™ Association. Sycard Technology does not provide design or consulting services.
These two websites can provide more information:
http://www.compactflash.org
http://www.pcmcia.org
Q14: How can I tell if my PC Card is 3.3V or 5V keyed?
A14: Check the OEM or user's manual for your PC Card. If this doesn't have the information, then contact
your card vendor's technical support.
Q15: Can I use a CardBus card in the CFextend 165/166/167?
A15: No, CardBus is a 32-bit interface high performance bus. CompactFlash and 16-bit PC Cards use a 16-
bit lower performance bus.
M200055-00
1994-2000 Sycard Technology
Appendix A Page A-3
1994-2000 Sycard Technology M200055-00
Appendix B Page B-1
Appendix B
B. CompactFlash 50-Pin Interface
Pin Name Description Pin Name Description
1 GND Ground 26 CD1# Card Detect 1
2 D03 Data Bit 3 27 D11 Data Bit 11
3 D04 Data Bit 4 28 D12 Data Bit 12
4 D05 Data Bit 5 29 D13 Data Bit 13
5 D06 Data Bit 6 30 D14 Data Bit 14
6 D07 Data Bit 7 31 D15 Data Bit 15
7 CE1# Card Enable 1 32 CE2# Card Enable 2
8 A10 Address Bit 10 33 VS1# Voltage Sense 1
9 OE# Output Enable 34 IORD# I/O Read Strobe
10 A09 Address Bit 9 35 IOWR# I/O Write Strobe
11 A08 Address Bit 8 36 WE# Write Enable
12 A07 Address Bit 7 37 RDY/BSY/IREQ Ready/Busy/Interrupt Request
13 VCC Card Power 38 VCC Card Power
14 A06 Address Bit 6 39 CSEL# Master Slave Select
15 A05 Address Bit 5 40 VS2# Voltage Sense 2
16 A04 Address Bit 4 41 RESET Card Reset
17 A03 Address Bit 3 42 WAIT# Extend Bus Cycle
18 A02 Address Bit 2 43 INPACK# Input Port Acknowledge
19 A01 Address Bit 1 44 REG# Register Select
20 A00 Address Bit 0 45 BVD2 Battery Voltage Detect 2
21 D00 Data Bit 0 46 BVD1 Battery Voltage Detect 1
22 D01 Data Bit 1 47 D08 Data Bit 8
23 D02 Data Bit 2 48 D09 Data Bit 9
24 WP/IOIS16 Write Protect I/O is 16 Bits 49 D10 Data Bit 10
25 CD2# Card Detect 2 50 GND Ground
1994-2000 Sycard Technology M200055-00
Page B-2 Appendix B
PC Card Pinout - I/O Mode
Pin Name Description Pin Name Description
1 GND Ground 35 GND Ground
2 D3 Data Bit 3 36 CD1# Card Detect 1
3 D4 Data Bit 4 37 D11 Data Bit 11
4 D5 Data Bit 5 38 D12 Data Bit 12
5 D6 Data Bit 6 39 D13 Data Bit 13
6 D7 Data Bit 7 40 D14 Data Bit 14
7 CE1# Card Enable 1 41 D15 Data Bit 15
8 A10 Address Bit 10 42 CE2# Card Enable 2
9 OE# Output Enable 43 VS1# Voltage Sense 1
10 A11 Address Bit 11 44 IORD# I/O Read Strobe
11 A9 Address Bit 9 45 IOWR# I/O Write Strobe
12 A8 Address Bit 8 46 A17 Address Bit 17
13 A13 Address Bit 13 47 A18 Address Bit 18
14 A14 Address Bit 14 48 A19 Address Bit 19
15 WE# Write Enable 49 A20 Address Bit 20
16 IREQ# Interrupt Request 50 A21 Address Bit 21
17 VCC Card Power 51 VCC Card Power
18 VPP1 Programming Supply
Voltage 1
19 A16 Address Bit 16 53 A22 Address Bit 22
20 A15 Address Bit 15 54 A23 Address Bit 23
21 A12 Address Bit 12 55 A24 Address Bit 24
22 A7 Address Bit 7 56 A25 Address Bit 25
23 A6 Address Bit 6 57 VS2# Voltage Sense 2
24 A5 Address Bit 5 58 RESET Card Reset
25 A4 Address Bit 4 59 WAIT# Extend Bus Cycle
26 A3 Address Bit 3 60 INPACK# Input Port
27 A2 Address Bit 2 61 REG# Register and I/O
28 A1 Address Bit 1 62 SPKR# Digital Audio
29 A0 Address Bit 0 63 STSCHG# Card Status Changed
30 D0 Data Bit 0 64 D8 Data Bit 8
31 D1 Data Bit 1 65 D9 Data Bit 9
32 D2 Data Bit 2 66 D10 Data Bit 10
33 IOIS16# IO Port is 16 bits 67 CD2# Card Detect 2
34 GND Ground 68 GND Ground
52 VPP2 Programming Supply
Voltage 2
Acknowledge
select enable
Waveform
M200055-00
1994-2000 Sycard Technology
Appendix C Page C-1
C. CF extend 166/167 Schematic
1994-2000 Sycard Technology M200055-00
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
SOCKET SIDE CONNECTOR
FILE=\ORCAD31\CFEX167\cfext2.s31
140053 A
CFextend 167 - Card Side
Sycard Technology
B
2 2Friday, October 29, 1999
Title
Size Document Number Rev
Date: Sheet of
CD1A#
D3
D4 D11
D5 D12
D6 D13
D7 D14
CE1# D15
A10 CE2#
OE# VS1#
IORD#
A9 IOWR#
A8
WE#
RDY/IREQ
VCC2
A7
A6 VS2#
A5 RESET
A4 WAIT#
A3 INP#
A2 REG#
A1 BVD2
A0 BVD1
D0 D8
D1 D9
D2 D10
WP/IO16# CD2A#
A[0..10]
D[0..15]
VCC VCC
P2
PCMCIA
GND
1
D3
2
D4
3
D5
4
D6
5
D7
6
CE1
7
A10
8
OE
9
A11
10
A9
11
A8
12
A13
13
A14
14
WE/PGM
15
RDY/BSY
16
VCCX
17
VPP1
18
A16
19
A15
20
A12
21
A7
22
A6
23
A5
24
A4
25
A3
26
A2
27
A1
28
A0
29
D0
30
D1
31
D2
32
WP
33
GND
34
GND
35
CD1
36
D11
37
D12
38
D13
39
D14
40
D15
41
CE2
42
RFSH
43
IORD
44
IOWR
45
A17
46
A18
47
A19
48
A20
49
A21
50
VCCX
51
VPP2
52
A22
53
A23
54
A24
55
A25
56
RFU
57
RESET
58
WAIT
59
INPACK
60
REG
61
BVD2
62
BVD1
63
D8
64
D9
65
D10
66
CD2
67
GND
68
TP1
TEST POINT
1
TP2
TEST POINT
1
A[0..10]
D[0..15]
CE1#
OE#
WE#
RDY/IREQ
WP/IO16#
CD1A#
CE2#
VS1#
IORD#
IOWR#
VS2#
RESET
WAIT#
INP#
REG#
BVD2
BVD1
CD2A#
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
HOST SIDE CONNECTOR
FILE=\ORCAD31\CFEX167\cfext1.s31
140053 A
CFextend 167 - Host Connector
Sycard Technology
B
1 2Friday, October 29, 1999
Title
Size Document Number Rev
Date: Sheet of
CD1A#
D3 D11
D4 D12
D5 D13
D6 D14
D7 D15
CE1# CE2#
A10 VS1#
OE# IORD#
A9 IOWR#
A8 WE#
A7 RDY/IREQ
A6 CSEL#
A5 VS2#
A4 RESET
A3 WAIT#
A2 INP#
A1 REG#
A0 BVD2
D0 BVD1
D1 D8
D2 D9
WP/IO16# D10
CD2A#
A[0..10]
D[0..15]
VCC VCC
P1
CF CARD
GND
1
D3
2
D4
3
D5
4
D6
5
D7
6
CE1
7
A10
8
OE
9
A9
10
A8
11
A7
12
VCCX
13
A6
14
A5
15
A4
16
A3
17
A2
18
A1
19
A0
20
D0
21
D1
22
D2
23
WP/IO16
24
CD2
25
CD1
26
D11
27
D12
28
D13
29
D14
30
D15
31
CE2
32
VS1
33
IORD
34
IOWR
35
WE
36
RDYIREQ
37
VCCX
38
CSEL
39
VS2
40
RESET
41
WAIT
42
INPACK
43
REG
44
BVD2
45
BVD1
46
D8
47
D9
48
D10
49
GND
50
CD2A#
CD1A#
D[0..15]
A[0..10]
CE2#
VS1#
IORD#
IOWR#
WE#
RDY/IREQ
CSEL#
VS2#
WAIT#
INP#
REG#
BVD2
BVD1
CE1#
OE#
WP/IO16#
RESET
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