Silicon Systems SiliconDrive SSD-C08G(I)-3600 User manual

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3600C-04DSR FEBRUARY 2, 2009
OVERVIEW
The SiliconDrive CF is an optimal time-to-
market replacement for hard drives and
flash cards or in host systems that require
low power and scalable storage solutions.
SiliconDrive technology is engineered
exclusively for the high performance, high
reliability, and multiyear product lifecycle
requirements of the Enterprise System
OEM market. Typical end-market
applications include broadband data and
voice networks, military systems, flight
system avionics, medical equipment,
industrial control systems, video
surveillance, storage networking, VoIP,
wireless infrastructure, and interactive
kiosks.
Every SiliconDrive is integrated with
SiliconSystems’ patented PowerArmor
and patent-pending SiSMART
technologies to virtually eliminate storage
systems failures.
PowerArmor prevents data corruption and
loss from power disturbances by
integrating patented technology into every
SiliconDrive.
SiSMART acts as an early warning system
to eliminate unscheduled downtime by
constantly monitoring and reporting the
exact amount of remaining storage system
useful life.
Numerous SiliconSystems’ patented and
patent-pending application-specific
technologies can be integrated into
SiliconDrive to safeguard application data
and software IP. Application notes
detailing these performance-enhancing
options are available under NDA.
FEATURES
• RoHS 6 of 6 compliant
• Integrated PowerArmor and SiSMART
technologies
• Capacity range: 128MB to 8GB
• Supports both 8-bit and 16-bit data
register transfers
• Supports dual-voltage 3.3V or 5V
interface
• Data reliability <1 error in 1014 bits read
• MTBF 4,000,000 hours
• ATA-3 compliant
• Industry standard Type I CF form factor
• Supports PIO modes 0-4 and DMA
modes 0-2
8GB
SSD-C08G(I)-3600
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DATA SHEET
SILICONDRIVE CF
SSD-CXXX(I)-3600

REVISION HISTORY SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE II FEBRUARY 2, 2009
REVISION HISTORY
Document No. Release Date Changes
3600C-04DSR February 2, 2009 Updated:
• "System Reliability" table and changed
the name to "Reliability."
• "Related Documentation" table.
Added:
• “Projected Operational Life Span.”
3600C-03DSR May 22, 2008 Updated:
• “Overview.”
• SiProtect information.
SSDS02-3600C-R February 25, 2008 Added a Note below the “DC
Characteristics” table.
SSDS01-3600C-R December 17, 2007 Updated the tRWD Maximum in the “True IDE
Multiword DMA Read/Write Access Timing”
table.
SSDS00-3600C-R August 22, 2007 Initial release.

TABLE OF CONTENTS SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE III FEBRUARY 2, 2009
TABLE OF CONTENTS
Overview.......................................................................................................................... i
Features........................................................................................................................... i
Revision History..............................................................................................................II
List of Figures...............................................................................................................VII
List of Tables................................................................................................................VIII
Physical Specifications.................................................................................................1
Physical Dimensions .................................................................................................... 1
Product Specifications.................................................................................................. 2
System Performance.................................................................................................... 2
System Power Requirements....................................................................................... 2
Reliability...................................................................................................................... 3
Projected Operational Life Span .................................................................................. 3
Product Capacity Specifications................................................................................... 4
Environmental Specifications ....................................................................................... 4
Electrical Specification.................................................................................................. 5
Pin Assignments........................................................................................................... 5
Signal Descriptions....................................................................................................... 6
Absolute Maximum Ratings........................................................................................ 14
Capacitance ............................................................................................................... 15
DC Characteristics ..................................................................................................... 15
AC Characteristics...................................................................................................... 16
Attribute and Common Memory Read Timing...................................................... 16
Attribute and Common Memory Write Timing ...................................................... 17
I/O Access Read Timing....................................................................................... 18
I/O Access Write Timing....................................................................................... 19
True IDE Read/Write Access Timing.................................................................... 20
True IDE Multiword DMA Read/Write Access Timing .......................................... 21

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3600C-04DSR PAGE IV FEBRUARY 2, 2009
Attribute Memory Description and Operation...........................................................22
Attribute Memory Read Operations............................................................................ 22
Attribute Memory Write Operations ............................................................................ 23
Attribute Memory Map................................................................................................ 24
Card Information Structure......................................................................................... 25
Configuration Option Register (200h)......................................................................... 36
Configuration and Status Register (202h).................................................................. 37
Pin Placement Register (204h) .................................................................................. 38
Socket and Copy Register (206h) .............................................................................. 39
Common Memory Description and Operation .......................................................... 40
Common Memory Read Operations........................................................................... 40
Common Memory Write Operations........................................................................... 40
I/O Space Description and Operation ........................................................................41
I/O Space Read Operations ....................................................................................... 41
I/O Space Write Operations ....................................................................................... 41
ATA and True IDE Register Decoding ........................................................................ 42
Memory-Mapped Register Decoding.......................................................................... 42
Independent I/O Mode Register Decoding................................................................. 43
Primary and Secondary I/O Mapped Register Decoding ........................................... 44
Task File Register Specification ................................................................................. 45
ATA Registers............................................................................................................... 46
Data Register ............................................................................................................. 46
Error Register............................................................................................................. 46
Feature Register......................................................................................................... 47
Sector Count Register ................................................................................................ 48
Sector Number Register............................................................................................. 49
Cylinder Low Register ................................................................................................ 50
Cylinder High Register ............................................................................................... 51
Drive/Head Register................................................................................................... 52

TABLE OF CONTENTS SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE VFEBRUARY 2, 2009
Status Register........................................................................................................... 53
Command Register .................................................................................................... 54
Alternate Status Register ........................................................................................... 55
Device Control Register ............................................................................................. 56
Device Address Register............................................................................................ 57
ATA Command Block and Set Description................................................................ 58
ATA Command Set .................................................................................................... 58
Check Power Mode — 98h, E5h.......................................................................... 60
Executive Drive Diagnostic — 90h....................................................................... 61
Format Track — 50h ............................................................................................ 62
Identify Drive — ECh............................................................................................ 63
Identify Drive — Drive Attribute Data ............................................................. 64
Idle — 97h, E3h.................................................................................................... 67
Idle Immediate — 95h, E1h.................................................................................. 68
Initialize Drive Parameters — 91h........................................................................ 69
Recalibrate — 1Xh ............................................................................................... 70
Read Buffer — E4h .............................................................................................. 71
Read DMA — C8h................................................................................................ 72
Read Multiple — C4h ........................................................................................... 73
Read Sector — 20h, 21h...................................................................................... 74
Read Long Sector(s) — 22h, 23h......................................................................... 75
Read Verify Sector(s) — 40h, 41h ....................................................................... 76
Seek — 7Xh ......................................................................................................... 77
Set Features — EFh............................................................................................. 78
Set Multiple Mode — C6h .................................................................................... 79
Set Sleep Mode — 99h, E6h................................................................................ 80
Standby — 96h, E2h ............................................................................................ 81
Standby Immediate — 94h, E0h .......................................................................... 82
Write Buffer — E8h .............................................................................................. 83

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3600C-04DSR PAGE VI FEBRUARY 2, 2009
Write DMA — CAh ............................................................................................... 84
Write Multiple — C5h ........................................................................................... 85
Write Sector(s) — 30h, 31h.................................................................................. 86
Write Long Sector(s) — 32h, 33h......................................................................... 87
Erase Sector(s) — C0h ........................................................................................ 88
Request Sense — 03h ......................................................................................... 89
Translate Sector — 87h ....................................................................................... 90
Wear-Level — F5h ............................................................................................... 91
Write Multiple w/o Erase — CDh.......................................................................... 92
Write Sector(s) w/o Erase — 38h......................................................................... 93
Write Verify — 3Ch............................................................................................... 94
Sales and Support ....................................................................................................... 95
Part Numbering............................................................................................................ 95
Nomenclature ............................................................................................................. 95
Part Numbers ............................................................................................................. 95
RoHS 6 of 6 Product Labeling — Pb-Free Identification Label .................................. 96
Sample Label ............................................................................................................. 96
Related Documentation............................................................................................... 97

LIST OF FIGURES SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE VII FEBRUARY 2, 2009
LIST OF FIGURES
Figure 1: Physical Dimensions......................................................................................... 1
Figure 2: Attribute and Common Memory Read Timing Diagram.................................. 16
Figure 3: Attribute and Common Memory Write Timing Diagram .................................. 17
Figure 4: I/O Access Read Timing Diagram .................................................................. 18
Figure 5: I/O Access Write Timing Diagram................................................................... 19
Figure 6: True IDE Read/Write Access Timing Diagram ............................................... 20
Figure 7: True IDE Multiword DMA Read/Write Access Timing..................................... 21
Figure 8: Sample Label.................................................................................................. 96

LIST OF TABLES SSD-CXXX(I)-3600 DATA SHEET
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LIST OF TABLES
Table 1: System Performance ......................................................................................... 2
Table 2: System Power Requirements ............................................................................ 2
Table 3: Reliability............................................................................................................3
Table 4: Operational Life Span ........................................................................................ 3
Table 5: Product Capacity Specifications ........................................................................ 4
Table 6: Environmental Specifications............................................................................. 4
Table 7: Pin Assignments ................................................................................................ 5
Table 8: Signal Descriptions ............................................................................................ 6
Table 9: Absolute Maximum Ratings ............................................................................. 14
Table 10: Capacitance ................................................................................................... 15
Table 11: DC Characteristics ......................................................................................... 15
Table 12: Attribute and Common Memory Read Timing................................................ 16
Table 13: Attribute and Common Memory Write Timing................................................ 17
Table 14: I/O Access Read Timing ................................................................................ 18
Table 15: I/O Access Write Timing ................................................................................ 19
Table 16: True IDE Read/Write Access Timing ............................................................. 20
Table 17: True IDE Multiword DMA Read/Write Access Timing.................................... 21
Table 18: Attribute Memory Read Operations ............................................................... 22
Table 19: Attribute Memory Write Operations................................................................ 23
Table 20: Attribute Memory Map.................................................................................... 24
Table 21: Card Information Structure............................................................................. 25
Table 22: Configuration Option Register (200h) ............................................................ 36
Table 23: Configuration and Status Register (202h)...................................................... 37
Table 24: Pin Placement Register (204h)...................................................................... 38
Table 25: Socket and Copy Register (206h).................................................................. 39
Table 26: Common Memory Read Operations .............................................................. 40
Table 27: Common Memory Write Operations .............................................................. 40

LIST OF TABLES SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE IX FEBRUARY 2, 2009
Table 28: I/O Space Read Operations........................................................................... 41
Table 29: I/O Space Write Operations........................................................................... 41
Table 30: Memory-Mapped Register Decoding ............................................................. 42
Table 31: Independent I/O Mode Register Decoding..................................................... 43
Table 32: Primary and Secondary I/O Mapped Register Decoding............................... 44
Table 33: Task File Register Specification..................................................................... 45
Table 34: Error Register................................................................................................. 46
Table 35: Feature Register ............................................................................................ 47
Table 36: Sector Count Register.................................................................................... 48
Table 37: Sector Number Register ................................................................................ 49
Table 38: Cylinder Low Register.................................................................................... 50
Table 39: Cylinder High Register ................................................................................... 51
Table 40: Drive/Head Register....................................................................................... 52
Table 41: Status Register .............................................................................................. 53
Table 42: Command Register........................................................................................ 54
Table 43: Alternate Status Register............................................................................... 55
Table 44: Device Control Register ................................................................................. 56
Table 45: Device Address Register ............................................................................... 57
Table 46: ATA Command Block and Set Description .................................................... 58
Table 47: ATA Command Set ........................................................................................ 58
Table 48: Check Power Mode — 98h, E5h.................................................................... 60
Table 49: Executive Drive Diagnostic — 90h................................................................. 61
Table 50: Format Track — 50h ...................................................................................... 62
Table 51: Identify Drive — ECh ..................................................................................... 63
Table 52: Identify Drive — Drive Attribute Data ............................................................. 64
Table 53: Idle — 97h, E3h ............................................................................................. 67
Table 54: Idle Immediate — 95h, E1h ........................................................................... 68
Table 55: Initialize Drive Parameters — 91h ................................................................. 69
Table 56: Recalibrate — 1Xh......................................................................................... 70

LIST OF TABLES SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE XFEBRUARY 2, 2009
Table 57: Read Buffer — E4h........................................................................................ 71
Table 58: Read DMA — C8h ......................................................................................... 72
Table 59: Read Multiple — C4h..................................................................................... 73
Table 60: Read Sector — 20h, 21h ............................................................................... 74
Table 61: Read Long Sector(s) — 22h, 23h .................................................................. 75
Table 62: Read Verify Sector(s) — 40h, 41h................................................................. 76
Table 63: Seek — 7Xh................................................................................................... 77
Table 64: Set Features — EFh ...................................................................................... 78
Table 65: Set Features’ Attributes ................................................................................. 78
Table 66: Set Multiple Mode — C6h .............................................................................. 79
Table 67: Set Sleep Mode — 99h, E6h ......................................................................... 80
Table 68: Standby — 96h, E2h...................................................................................... 81
Table 69: Standby Immediate — 94h, E0h.................................................................... 82
Table 70: Write Buffer — E8h........................................................................................ 83
Table 71: Write DMA — CAh......................................................................................... 84
Table 72: Write Multiple — C5h ..................................................................................... 85
Table 73: Write Sector(s) — 30h, 31h ........................................................................... 86
Table 74: Write Long Sector(s) — 32h, 33h .................................................................. 87
Table 75: Erase Sector(s) — C0h.................................................................................. 88
Table 76: Request Sense — 03h................................................................................... 89
Table 77: Extended Error Codes ................................................................................... 89
Table 78: Translate Sector — 87h................................................................................. 90
Table 79: Wear-Level — F5h......................................................................................... 91
Table 80: Write Multiple w/o Erase — CDh ................................................................... 92
Table 81: Write Sector(s) w/o Erase — 38h .................................................................. 93
Table 82: Write Verify — 3Ch ........................................................................................ 94
Table 83: Part Numbering Nomenclature ...................................................................... 95
Table 84: Part Numbers................................................................................................. 95
Table 85: Related Documentation ................................................................................. 97

PHYSICAL SPECIFICATIONS SSD-CXXX(I)-3600 DATA SHEET
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PHYSICAL SPECIFICATIONS
The SiliconDrive CF products are offered in an industry-standard Type I form
factor. See "Part Numbering" on page 95 for details regarding CF capacities.
PHYSICAL DIMENSIONS
This section provides diagrams that describe the physical dimensions for the
CF.
Figure 1: Physical Dimensions

PRODUCT SPECIFICATIONS SSD-CXXX(I)-3600 DATA SHEET
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PRODUCT SPECIFICATIONS
Note: All SiliconDrive CF values quoted are typical at 25°C and nominal
supply voltage.
SYSTEM PERFORMANCE
SYSTEM POWER REQUIREMENTS
Table 1: System Performance
Reset to Ready Startup Time (Typical/Maximum) 200ms/400ms
Read Transfer Rate (Typical) 8MBps
Write Transfer Rate (Typical) 6MBps
Burst Transfer Rate 16.7MBps
Controller Overhead (Command to DRQ) 2ms (maximum)
Table 2: System Power Requirements
DC Input Voltage 3.3 ± 10% 5.0 ± 10%
Sleep (Standby Current) <0.5mA <1.0mA
Read (Typical/Peak) 20mA/75mA 30mA/100mA
Write (Typical/Peak) 30mA/75mA 40mA/100mA

PRODUCT SPECIFICATIONS SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE 3FEBRUARY 2, 2009
RELIABILITY
PROJECTED OPERATIONAL LIFE SPAN
* There are unlimited read cycles. Service life is determined using
SiliconSystems’ LifeEst calculation at 100% duty cycle with 25% write cycles.
LifeEst is a comprehensive measurement that considers numerous factors to
determine the projected life span of a SiliconDrive. A white paper that
describes the benefits of LifeEst and how to calculate it can be found at http://
www.siliconsystems.com/resources/Documents/Whitepaper/
SiliconSystems_NAND_Evolution.pdf.
The actual life of a SiliconDrive is dependant on the customer usage model.
SiSMART is a patented technology of SiliconSystems that enables host
systems to monitor actual usage of a SiliconDrive in real time. SiSMART
measures and reports the remaining life of a SiliconDrive. For more
information on SiSMART, refer to the Eliminating Unscheduled Downtime by
Forecasting Useable Life white paper at http://www.siliconsystems.com/
technology/pdfs/SiliconDrive_SiSMART.pdf.
Table 3: Reliability
MTBF (@ 25ºC) 4,000,000 hours
Bit Error Rate <1 non-recoverable error in 1014 bits read
Table 4: Operational Life Span
SiliconDrive Part# Capacity Service Life* GB Written per Day
SSD-C08G-3600 8GB 324.3 Years @ 135.2GB
SSD-C04G-3600 4GB 162.2 Years @ 135.2GB
SSD-C02G-3600 2GB 81.1 Years @ 135.2GB
SSD-C01G-3600 1GB 40.5 Years @ 135.2GB
SSD-C51M-3600 512MB 20.3 Years @ 135.2GB
SSD-C25M-3600 256MB 10.1 Years @ 135.2GB
SSD-C12M-3600 128MB 5.1 Years @ 135.2GB

PRODUCT SPECIFICATIONS SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE 4FEBRUARY 2, 2009
PRODUCT CAPACITY SPECIFICATIONS
* = All IDE drives 8GB and larger use 16383 cylinders, 16 heads, and 63 sectors/track due to
interface restrictions.
ENVIRONMENTAL SPECIFICATIONS
Table 5: Product Capacity Specifications
Product
Capacity Capacity (Bytes) Number of Sectors Number of Cylinders Number of Heads
Numberof
Sectors/
Track
128MB 130,154,496 254,208 993 8 32
256MB 260,571,136 508,928 994 16 32
512MB 521,773,056 1,019,088 1011 16 63
1GB 1,047,674,880 2,046,240 2030 16 63
2GB 2,098,446,336 4,098,528 4066 16 63
4GB 4,224,761,856 8,251,488 8186 16 63
8GB 8,455,200,768 16,514,064 16,383* 16 63
Table 6: Environmental Specifications
Temperature 0ºC to 70ºC (Commercial)
-40ºC to 85ºC (Industrial)
Humidity 8% to 95% non-condensing
Vibration 16.3gRMS, MIL-STD-810F, Method 514.5, Procedure I,
Category 24
Shock 1000G, Half-sine, 0.5ms Duration
50g Pk, MIL-STD-810F, Method 516.5, Procedure I
Altitude 80,000ft, MIL-STD-810F, Method 500.4, Procedure II

ELECTRICAL SPECIFICATION SSD-CXXX(I)-3600 DATA SHEET
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ELECTRICAL SPECIFICATION
PIN ASSIGNMENTS
The following table describes the SiliconDrive CF 50-pin IDE connector
signals. Table 7: Pin Assignments
Notes:
Pin
PC Card
Memory
Mode
PC Card
I/O Mode IDE-ATA Mode Pin
PC Card
Memory
Mode
PC Card
I/O Mode IDE-ATA Mode
1 GND GND GND 26 CD1# CD1# CD1#
2D3 D3 D3 27
D111D111D111
3D4 D4 D4 28
D121D121D121
4D5 D5 D5 29
D131D131D131
5D6 D6 D6 30
D141D141D141
6D7 D7 D7 31
D151D151D151
7CE1#CE1#CE1# 32CE2#CE2#CE2#
8 A10 A10 A10 33 VS1# VS1# VS1#
9 OE# OE# OE# 34 IORD# IORD# IORD#
10 A9 A9 A9235 IOWR# IOWR# IOWR#
11 A8 A8 A8236 WE# WE# WE#
12 A7 A7 A7 237 RDY/BSY IREQ RDY/BSY
13 VCC VCC VCC 38 VCC VCC VCC
14 A6 A6 A6239 CSEL# CSEL# CSEL#
15 A5 A5 A5240 VS2# VS2# VS2#
16 A4 A4 A4241 RESET# RESET# RESET#
17 A3 A3 A3242 WAIT# WAIT# WAIT#
18 A2 A2 A2 43 INPACK# INPACK# DMARQ
19 A1 A1 A1 44 REG# REG# DMACK#
20 A0 A0 A0 45 BVD2 SPKR# DASP#
21 D0 D0 D0 46 BVD1 STSCHG# PDIAG#
22 D1 D1 D1 47 D81 D81 D81
23 D2 D2 D2 48 D91 D91 D91
24 WP -IOIS16 -IOIS16 49 D101 D101 D101
25 CD2# CD2# CD2# 50 GND GND GND
1 = These signals are required only for 16-bit access, and not required when installed in
8-bit systems.
2 = Should be grounded by the host.

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SIGNAL DESCRIPTIONS
Table 8: Signal Descriptions
Signal Name Pin Type Description
A10-A0 8, 10, 11,
12, 14, 15,
16, 17, 18,
19, 20
I These address lines along with the
-REG signal are used to select the
following:
• The I/O port address registers
within the SiliconDrive CF
• The memory-mapped port address
registers within the SiliconDrive CF
• A byte in the card's information
structure and its configuration
control and status registers
A10-A0
(PC Card I/O
mode)
This signal is the same as the PC
Card Memory Mode signal.
A2-A0
(True IDE mode)
18, 19, 20 I In true IDE mode, only A[2:0] are used
to select the one of eight registers in
the Task File. The remaining address
lines should be grounded by the host.
BVD1
(PC Card memory
mode)
46 I/O This signal is asserted high, because
BVD1 is not supported.
-STSCHG
(PC Card I/O
mode)
This signal is asserted low to alert the
host to changes in the RDY/-BSY and
Write Protect states while the I/O
interface is configured. This signal’s
use is controlled by the Card
Configuration and Status register.
-PDIAG
(True IDE mode)
In the true IDE mode, this input/output
is the Pass Diagnostic signal in the
Master/Slave handshake protocol.
BVD2
(PC Card memory
mode)
45 I/O This signal is asserted high, as BVD2
is not supported.

ELECTRICAL SPECIFICATION SSD-CXXX(I)-3600 DATA SHEET
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-SPKR
(PC Card I/O
mode)
This line is the Binary Audio output
from the card. If the Card does not
support the Binary Audio function, this
line should be held negated.
-DASP
(True IDE mode)
In the true IDE mode, this input/output
is the Disk Active/Slave Present
signal in the Master/Slave handshake
protocol.
-CD1, -CD2
(PC Card memory
mode)
26, 25 O These Card Detect pins are
connected to ground on the
SiliconDrive CF, and are used by the
host to determine that the SiliconDrive
CF is fully inserted into its socket.
-CD1, -CD2
(PC Card I/O
Mode)
This signal is the same for all modes.
-CD1, -CD2
(True IDE mode)
This signal is the same for all modes.
-CE1, -CE2
(PC Card memory
mode)
Card Enable
7, 32 I These input signals are used both to
select the card and to indicate to the
card whether a byte or a word
operation is being performed.
• -CE2 always accesses the odd
byte of the word.
• -CE1 accesses the even byte or
the odd byte of the word depending
on A0 and -CE2.
A multiplexing scheme based on A0,
-CE1, and -CE2 allows 8-bit hosts to
access all data on D0-D7. See
"Attribute Memory Read Operations"
on page 22, "Attribute Memory Write
Operations" on page 23, "Common
Memory Read Operations" on page
40, and "Common Memory Write
Operations" on page 40.
Table 8: Signal Descriptions (Continued)
Signal Name Pin Type Description

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-CE1, -CE2
(PC Card I/O
mode)
Card Enable
This signal is the same as the PC
Card Memory Mode signal. See "I/O
Space Read Operations" on page 41
and "I/O Space Write Operations" on
page 41.
-CS0, -CS1
(True IDE mode)
In the true IDE mode, -CS0 is the chip
select for the task file registers while
-CS1 is used to select the Alternate
Status register and the Device Control
register.
-CSEL
(PC Card memory
mode)
39 I This signal is not used for this mode.
-CSEL
(PC Card I/O
mode)
This signal is not used for this mode.
-CSEL
(True IDE mode)
This internally pulled-up signal is used
to configure this device as a master or
slave when configured in the true IDE
mode.
When this pin is:
• Grounded, this device is configured
as a master.
• Open, this device is configured as
a slave.
-INPACK
(PC Card memory
mode)
43 O This signal is not used in this mode.
-INPACK
(PC Card I/O
mode)
Input Acknowledge
This signal is asserted by the
SiliconDrive CF when the card is
selected and responding to an I/O
read cycle at the address that is on
the address bus. This signal is used
by the host to control the enabling of
any input data buffers between the
SiliconDrive CF and the CPU.
Table 8: Signal Descriptions (Continued)
Signal Name Pin Type Description

ELECTRICAL SPECIFICATION SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE 9FEBRUARY 2, 2009
DMARQ
(True IDE mode)
43 O In true IDE mode, this signal is used
for DMA transfers between the host
and device. DMARQ is asserted by
the device when the device is ready to
transfer data to/from the host. The
direction of data transfer is controlled
by -IORD and -IOWR. This signal is
used in a handshake manner with
-DMACK (i.e., the device waits until
the host asserts -DMACK before
negating DMARQ, and reasserts
DMARQ if there is more data to
transfer). The DMARQ/-DMACK
handshake is used to provide flow
control during the transfer.
D15-D00
(PC Card memory
mode)
31, 30, 29,
28, 27, 49,
48, 47, 6,
5, 4, 3, 2,
23, 22, 21
I/O These lines carry the data,
commands, and status information
between the host and the controller.
• D00 is the LSB of the word’s even
byte.
• D08 is the LSB of the word’s odd
byte.
D15-D00
(PC Card I/O
mode)
This signal is the same as the PC
Card Memory Mode signal.
D15-D00
(True IDE mode)
In true IDE mode, all Task File
operations occur in byte mode on the
low-order bus D00-D07, while all data
transfers are 16 bits using D00-D15.
GND
(PC Card memory
mode)
1, 50 - Ground.
GND
(PC Card I/O
mode)
This signal is the same for all modes.
GND
(True IDE mode)
This signal is the same for all modes.
Table 8: Signal Descriptions (Continued)
Signal Name Pin Type Description

ELECTRICAL SPECIFICATION SSD-CXXX(I)-3600 DATA SHEET
SILICONSYSTEMS PROPRIETARY
This document and the information contained within it is confidential and proprietary to SiliconSystems, Inc.
All unauthorized use and/or reproduction is prohibited.
3600C-04DSR PAGE 10 FEBRUARY 2, 2009
-IORD
(PC Card memory
mode)
34 I This signal is not used in this mode.
-IORD
(PC Card I/O
mode)
This is an I/O read strobe generated
by the host. This signal gates I/O data
onto the bus from the SiliconDrive CF
when the card is configured to use the
I/O interface.
-IORD
(True IDE mode)
In true IDE mode, this signal has the
same function as the PC Card I/O
mode.
-IOWR
(PC Card memory
mode)
35 I This signal is not used in this mode.
-IOWR
(PC Card I/O
mode)
The I/O write strobe pulse is used to
clock I/O data on the Card data bus
into the SiliconDrive CF controller
registers when the SiliconDrive CF is
configured to use the I/O interface.
The clocking occurs on the negative-
to-positive edge of the signal (the
trailing edge).
-IOWR
(True IDE mode)
In true IDE mode, this signal has the
same function as the PC Card I/O
mode.
-OE
(PC Card memory
mode)
9 I This is an output enable strobe
generated by the host interface, which
is used to read:
• Data from the SiliconDrive CF in
memory mode.
• The CIS and configuration
registers.
-OE
(PC Card I/O
mode)
In PC Card I/O mode, this signal is
used to read the CIS and
configuration registers.
Table 8: Signal Descriptions (Continued)
Signal Name Pin Type Description