Datasheet AT5FC004-20 Datasheet (ATMEL)

Page 1
4-Megabyte Flash Memory PCMCIA Card
AT5FC004
Features
Single Power Supply
Read and Write Volta ge, 5 V ± 5%
High Performance
200 ns Maximum Access Time 6 ms Typical Sector Write
CMOS Low Power Consumption
20 mA Typical Active Current (Byte Mode) 400 µA Typic al Standby Current
Fully MS-DOS Compatible Flash Driver and Formatter
Virtual-Disk Flash Driver with 512 By tes/Sector Random Read/Write to any Sector No Erase Operation Required Prior to any Write
Zero Data Retention Power
Batteries not Required for Data Storage
PCMCIA/JEIDA 68-Pin Standard
Selectable Byte- or Word-Wide Configuration
High Re-programmable Endurance
Built-in Redundancy for Sector Replacement Minimum 100,000 Write Cycles
Five Levels of Write Protection
Prevent Accidental Data Loss
Block Diagram
Pin Configuration
Pin Name Function A0-A21 Addresses D0-D15 Data
,
CE2,
, WP
CD BVD1, BVD2
Control Signals
Card Status
Page 2
Description
Atmel’s Flash Memory Card provides the highest system level performance for data and file storage solutions to the portable PC market segment. Data files and a pplications programs ca n be stored on the AT5FC004. This allows OEM manufacturers of portable system to eliminate the weight, power consumption and reliability issues associated with electro-mechanical disk-based systems. The AT5FC004 r equires a single voltage powe r supply for total system operation. No batteries are needed for data re­tention due to its Flash-based technology. S ince no high volta ge (12 V) is required to perform any write operation, the AT5FC004 is suitable for the emerging "mobile" personal sys­tems.
The AT5FC004 is com pa tible with the 6 8-pin P CMC IA/ JE IDA international standard. Atmel’s Flash Memory Cards can be read in either a byte-wide or word-wide mode which allows for flexible integration into various system platform s. It c an be rea d like any typical PCMCIA SRAM or ROM card.
Block Diagram
The Card Information Structure (CIS) can be written by the OEM or by Atmel at the attribute memory address space using a format utility. The CIS appears at the beginning of the card’s attribute memory space and defines the low-level organization of data on the PC card. The AT5FC004 contains a separate 2 Kbyte EEPROM memory for the card’s attribute memory space.
The third party software solutions such as AWARD Software’s CardWare system and the SCM’s Flash File System (FFS), enables Atmel’s Flash Memory Card to emulate the function of
essentially all the major brand personal computers that are DOS/Windows compatible.
For some unique portable computers, such as the HP200/100/95LX series, the software Driver and Formatter are also available. The Atmel Driver and Formatter utilizes a self­contained spare sector replacement algorithm, enabled by At­mel’s small 512-byte sectors, to achieve long term card reliability and endurance.
2 AT5FC004
Page 3
Absolute Maximum Ratings*
Storage Temperature........................-30°C to +70°C
Ambient Temperature with
Power Applied................................... -10°C to +70°C
Voltage with Respect to Ground, All pins
(1)
V
............................................... -2.0 V to +7.0 V
CC
Output Short Cir c uit Current
(1)
.......... -2.0 V to +7.0 V
(2)
....................-200 mA
AT5FC004
*NOTICE: Stresses beyond those listed under "Absolute Maximum
Ratings" may cause perm an en t dam ag e to the card . T his is a stress rating only and functional operation of the card at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended pe­riods may affect device reliability.
Notes:
1. Minimum DC voltage on input or I/O pins is -0.5 V. During volt­age transients, inputs may overshoot V up to 20 ns. Maximum DC voltage on output and I/O pins is V
+0.5 V. During voltage transitions, outputs may overshoot to
CC
V
+2.0 V for periods up to 20 ns.
CC
2. No more than one output shorted at a time. Durati on of the short cir­cuit should not be greater than one second. Conditions equal V
= 0.5 V or 5.0 V, VCC = Max.
OUT
to -2.0 V for periods of
SS
D.C. and A.C. Operating Range
AT5FC004-20
o
Operating Temperature (Case) Com. 0
Power Supply 5 V ± 5%
V
CC
Pin Capacitance
(f = 1 MHz, T = 25°C)
(1)
Symbol Parameter Conditions Typ Max Units
C
IN1
C
OUT
C
IN2
C
I/O
Note: 1. This parameter is characterized and is not 100% tested.
Address Capacitance VIN = 0 V 20 pF Output Capacitance V
= 0 V 20 pF
OUT
Control Capacitance VIN = 0 (CE) 45 pF I/O Capacitance V
= 0 V 20 pF
I/O
C - 70oC
3
Page 4
PC Card Pin Assignments
I = Input, O = Output, I/O = Bi-directional, NC = No Connect
Pin Signal I/O Function
1 GND Ground 2 D3 I/O Data Bit 3 3 D4 I/O Data Bit 4 4 D5 I/O Data Bit 5 5 D6 I/O Data Bit 6 6 D7 I/O Data Bit 7 7
CE
1
I Card Enable 1 8 A10 I Address Bit 10 9
OE I Output Enable 10 A11 I Address Bit 11 11 A9 I Address Bi t 9 12 A8 I Address Bi t 8 13 A13 I Address Bit 13 14 A14 I Address Bit 14 15
WE I Write Enable 16 NC No Connect 17 V
CC
Power Supply 18 NC No Connect 19 A16 I Address Bit 16 20 A15 I Address Bit 15 21 A12 I Address Bit 12 22 A7 I Address Bi t 7 23 A6 I Address Bi t 6 24 A5 I Address Bi t 5 25 A4 I Address Bi t 4 26 A3 I Address Bi t 3 27 A2 I Address Bi t 2 28 A1 I Address Bi t 1 29 A0 I Address Bi t 0 30 D0 I/O Data Bit 0 31 D1 I/O Data Bit 1 32 D2 I/O Data Bit 2 33 WP O Write Protect 34 GND Ground
(1)
(1)
Pin Signal I/O Function
35 GND Groun d 36
CD
1
O Card Detect 1 37 D11 I/O Data Bit 11 38 D12 I/O Data Bit 12 39 D13 I/O Data Bit 13 40 D14 I/O Data Bit 14 41 D15 I/O Data Bit 15 42
CE
2
I Card Enable 2 43 NC No Connect 44 RFU Reserved 45 RFU Reserved 46 A17 I Address Bit 17 47 A18 I Address Bit 18 48 A19 I Address Bit 19 49 A20 I Address Bit 20 50 NC No Connect 51 V
CC
Power Supply 52 NC No Connect 53 NC No Connect 54 NC No Connect 55 NC No Connect 56 NC No Connect 57 NC No Connect 58 NC No Connect 59 NC No Connect 60 NC No Connect 61 62 63 BVD
REG I Register Select BVD
O Ba ttery Voltage Detect 2
2
O Ba ttery Voltage Detect 1
1
64 D8 I/O Data Bit 8 65 D9 I/O Data Bit 9 66 D10 I/O Data Bit 10 67
CD
2
O Card Detect 2
68 GND Groun d
(1)
(1)
(2) (2)
(1)
Notes: 1. Signal must not be connected between cards.
BVD = Internally pul led up.
2.
4 AT5FC004
Page 5
AT5FC004
Pin Description
Symbol Name Type Function
A0-A21 Address Inputs Input Address Inputs are internally latched during write cycles.
Data Input/Outputs are internally latched on write cycles.
D0-D15 Data Input/Output
CE1, CE
2
Card Enable Input
Input/Output
Data outputs are latched during read cycles. Data pins are active high. Whe n the memory card is de-selected or the outputs are dis ab led the outputs float to tri-state.
Card Enable is active low. The memory card is de-selected and power consumption is reduced to standby levels whe n memory card circuitry that controls the high and low byte control logic o f the card, input buffers, segment decoders, and associated memory devices.
CE is high. CE activates the internal
OE Output Enable Input
WE Write Enable Input
V
CC
GND Ground Ground CD1, CD
WP Write Protect Output NC No Connect Corresponding pin is not connected internally.
BVD1, BVD REG Register Select Input
2
PC Card Power Supply
Card Detect Output
Battery Voltage Detect Output Internally pulled up. (There is no battery in the card.)
2
Output Enable is active low and enables the data buffers through the card outputs during read cycles.
Write Enable is active low and controls th e write function to the memory arra y. The target address is latched on the falling edge of the latched on the rising edge of the pulse.
PC Card Power Supply for device operation (5.0 V ± 5%)
When Card Detect 1 and 2 = Ground the system detects the card.
Write Protect is active high and indicate s that all card write operations are disabled by the write protect switch.
Provide access to Card Information Structure in the Attribute Memory Device
WE pulse and the appropriate data is
5
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Memory Card Operations
The AT5FC004 Flash Memory Card is organized as an array of 8 individual AT29C040A devices. They are logically define d as contiguous sectors of 512 bytes. Each sector can be read and written randomly as designated by the host. Th ere is N O need to erase any sector prior to any write operation. Also, there is NO high voltage (12 V) required to perform any write operations.
The common memory space data contents are altered in a simi­lar manner as writing to individual Flash memory devices. On­card address and data buffers activate the appropriate Flash de­vice in the memory array. E ach devic e internally latche s addres s and data during wri te cycles. Refer to the Common M emory Operations table.
Byte-Wide Operations
The AT5FC004 provides the flexibility to operate on data in byte-wide or word-wide oper ations . Byte- wid e dat a is a va ilable on D0-D7 for read and write operations ( high). Even and odd bytes are stored in a pair of memory chip segments (i.e., S0 and S1) and are accessed when A0 is low and high respectively.
Word-Wide Operat io n s
The 16-bit words are accessed when both CE1 and CE2 are forced low, A0 = don’t care. D0-D15 are used for word-wide operations
Read Enable/Output Disable
Data outputs from the card are disabled when OE is at a logic­high level. Under this condition, outputs are in the high-imped­ance state. The A20 and A2 1selects the paired memo ry chip seg­ments, while A0 decide s the upper or lower bank . T he pins determine either byte or word mode operation. The Output Enable ( chip segments. The on-card I/O transceiver is set in the output mode. The AT5FC004 sends data to the host. Refer to A.C. Read Waveforms drawing.
OE) is forced low to activate all outputs of the me mor y
Standby Operations
When both CE1 and CE2 are at logic-high level, the AT5FC004 is in Standby mode; i.e., all memory chip segme nts as well as the decoder/transceiver are completely de-selected at minimum power consumption. Even in the byte-mode read operation, only one memory chip segment (even or odd) is active at any time. The other seven memory chip segments remain in standby. In the word-mode there are two memory chip segments in active and six in standby.
Write Operations
The AT5FC004 is written on a sector basis. Each sector of 512 bytes can be selected randomly and written indepe ndently with­out any prior erase cycle. A9 to A19 specify the sector address, while A20 and A21 specifies the Flash chip segment pair. Within each sector, the individual by te ad dress is la tch ed on the falling edge of
CE or WE, whichever occurs last. The data is
CE1 = low, CE2 =
CE1/CE
latched by the first rising edge of be programmed must have its high-to-low transition on
CE) within 150 µs of the low-to- high transition of WE (or CE) of the preceding byte pair. If a high-to-low transition is not de-
tected within 150 µs of the last low-to-high transition, the data load period will end and the internal programming period will start. All the bytes of a sector are simultaneously programmed during the internal programming period. A maxim um write time of 10 ms per sector is self-controlled by the Flash devices. Refer to A.C. Write Waveforms drawings.
CE or WE. Each byte pair to
Write Protection
The AT5FC004 has five types of write protection. The PCMCIA/JEIDA socket itself provides the first type of write protection. Power supply and control pins have specific pin lengths in order to protect the card with proper power supply sequencing in the case of hot insertion and removal.
A mechanical write protection switch provide s a second type of write protection. When this swit ch is ac tivated, forced high. The Flash memory arrays are therefore write-dis­abled.
The third type of write protection is achieved with the built-in low VCC sensing circuit within each Flash device. If the exter­nal VCC is below 3.8 V (typica l), the write f unction is inhibited.
The fourth type of write protection is a noise filter circuit within each Flash device. Any pulse of less than 15 ns (typical) on the WE, CE1 or CE2 inputs will not initiate a program cycle.
The last type of write protection is based on the Software Data Protection (SDP) scheme of the AT29C040A devices. Each of the sixteen devices needs to enable and disable the SDP indi-
2
vidually. Refer to the Software Data Protected Program- ming/Disable Algorithm tables for descriptions of enable and disable SDP operations.
WE is internally
Card Detection
Each CD (output) pin should be read by the host system to de­termine if the memory ca rd is properly sea ted in the socket. and CD2 are internally tied to the ground. If both bits are not detected, the system should indicate that the card must be re-inserted.
CIS Data
The Card Information Structure (CIS) describes the capabilities and specifications o f a card. T he CIS of the AT5FC004 can be written either by the OEM or by Atmel at the attribute memory space beginning at address 00000H by using a format utility. The AT5FC004 contains a separate 2 Kbyte EEPROM memory for the card’s attribute memory space. The attribute is active when the tribute memory access. D8-D15 should be ignored. Odd order bytes present invalid data. Refer to the Attribute Memory Operations table.
REG pin is driven low. D0-D7 are active during at-
WE (or
CD
1
6 AT5FC004
Page 7
Common Memory Operations
X = Don’t Care, where Don’t Care is either VIL or VIH levels.
AT5FC004
Pins REG CE
CE
2
OE WE A0 D8-D15 D0-D7
1
Read-Only
Read (x8) Read (x8) Read (x8) Read (x16) Output Disable V Standby X V
(1) (2) (3)
(4)
V
IH
V
IH
V
IH
V
IH IH
V
IH
V
IH
V
IL
V
IL
V
IL
V
IL
V
IH
V
IL
V
IL
V
IL
V
IL
V
IL
XXVIHV
IH
V
IH
X X X High Z High Z
Write-Only
Write (x8) Write (x8) Write (x8) Write (x16)
(1) (2) (3)
(4)
Output Disable V
Notes:
1. Byte access - Even. In this x8 mode, D0-D7 contain the "even" byte (low byte) of the x16 word. D8-D15 are inactive.
2. Byte access - Odd. In this x8 mode, D0-D7 contain the "odd" byte (high byte) of the x16 word. This is accomplished internal to the card by transposin g D 8 -D 15 to D0 -D 7. D 8-D 15 are inactive.
V
IH
V
IH
V
IH
V
IH IH
V
IH
V
IH
V
IL
V
IL
V
IL
V
IL
V
IH
V
IL
V
IH
V
IH
V
IH
V
IH
XXVIHV
V
IH
V
IH
V
IH
V
IH IH
V
IL
V
IL
V
IL
V
IL IL
V
V
High Z Data Out-Even
IL
High Z Data Out-Odd
IH
X Data Out-Odd High Z X Data Out-Odd Data Out-Even X High Z High Z
V V
High Z Data In-Even
IL
High Z Data In-Odd
IH
X Data In-Odd High Z X Data In-Odd Data In-Even X High Z High Z
3. Odd byte only access. In this x8 mode, D8-D15 contain the "odd" byte (high byte) of the x16 word. D0-D7 are inactive. A0 = X.
4. Word access. In this mode D0-D7 contain the "eve n" byte while D8-D15 contain the "odd" byte. A0 = X
Memory Card Program Routine
Byte Mode
BEGIN
SELECT
SECTOR
LOAD ADDRESS/DATA
OF 512 BYTES
WAIT FOR A
MAX IMUM OF 10 ms
SECTOR
PROGRAM COMPLETE
INTERLEAVING LOW 256 BYTES AND HIGH 256 BYTES
Memory Card Program Routine
Word Mode
BEGIN
SELECT
SECTOR
LOAD ADDRESS/DA TA
OF 256 WORDS
WAIT FOR A
MAX I MUM OF 10 ms
SECTOR
PROG RAM COMPLE TE
LOWA NDHIG HBYTES SIMULT A NEOUSLY
7
Page 8
Attribute Memory Operations
X = Don’t Care, where Don’t Care is either VIL or VIH levels.
Pins REG CE
CE
2
OE WE A0 D8-D15 D0-D7
1
Read-Only
Read (x8) Read (x8) V Read (x8) V Read (x16) V Output Disable V Standby X V
(1)
V
IL IL IL IL IL
VIH V VIH V
VIL V VIL V
IL IL IH IL
V
IL
V
IL
V
IL
V
IL
V
IH
V
IH
V
IH
V
IH
V V
High Z Data Out-Even
IL
High Z Not Valid
IH
X Not Valid High Z X Not Valid Data Out-Even
XXVIHVIHX High Z High Z
IH
V
IH
X X X High Z High Z
Write-Only
Write (x8)
(1)
Write (x8) V Write (x8) V Write (x16) V Output Disable V
Note: 1. Byte access - Even. In this x8 mode, D0-D7 contain the "even" byte (low byte) of the x16 word. D8-D15 are inactive.
V
IL IL IL IL IL
V
IH
VIH V
VIL V VIL V
V
IL IL IH IL
V
IH
V
IH
V
IH
V
IH
XXVIHV
V
IL
V
IL
V
IL
V
IL IL
V V
High Z Data In-Even
IL
High Z Not Valid
IH
X Not Valid High Z X Not Valid Data In-Even X High Z High Z
8 AT5FC004
Page 9
AT5FC004
D.C. Characteristics, Byte-Wide Operation
Symbol Parameter Condition Min Typ Max Units
= VCC Max,
V
I
LI
I
LO
I
SB
I
CC1
Input LeakageCurrent
Output Leakage Current
VCC Standby Current
(1)
V
Active Read Current
CC
CC
V
= VCC or V
IN
V
= VCC Max,
CC
V
= VCC or V
OUT
= VCC Max,
V
CC
SS
CE = VCC ± 0.2 V
= VCC Max, CE = VIL,
V
CC
OE = VIH, I
OUT
= 0 mA,
at 5 MHz
SS
1.0 ±20 µA
1.0 20 µA
0.5 1.0 mA
20 40 mA
I
CC2
V
IL
V
IH
V
OL
V
OH
Notes: 1. One Flash device active, 7 in standby.
V
Active Write Current
CC
Input Low Voltage 0.8 V Input High Voltage 2.4 V Output Low Voltage IOL = 3.2 mA 0.40 V Output High Voltage IOH = -2.0 mA 3.8 V
CE = VIL,WE = VIL, Programming in Progre ss
20 40 mA
D.C. Characteristics, Word-Wide Operation
Symbol Parameter Condition Min Typ Max Units
= VCC Max,
V
I
LI
I
LO
I
SB
I
CC1
Input LeakageCurrent
Output Leakage Current
VCC Standby Current
(1)
V
Active Read Current
CC
CC
V
= VCC or V
IN
= VCC Max,
V
CC
V
= VCC or V
OUT
= VCC Max,
V
CC
SS
CE = VCC ± 0.2 V
= VCC Max, CE = VIL,
V
CC
OE = VIH, I
OUT
= 0 mA,
at 5 MHz
SS
1.0 ±20 µA
1.0 20 µA
0.5 1.0 mA
40 80 mA
I
CC2
V
IL
V
IH
V
OL
V
OH
Notes: 1. Two Flash devices active, 6 in standby.
V
Active Write Current
CC
Input Low Voltage 0.8 V Input High Voltage 2.4 V Output Low Voltage IOL = 3.2 mA 0.40 V Output High Voltage IOH = -2.0 mA 3.8 V
CE = VIL, WE = VIL, Programming in Progre ss
40 80 mA
9
Page 10
A.C. Read Characteristics
Symbol Parameter Min Max Units
t
RC
t
CE
t
ACC
t
OE
t
Lz
t
DF
t
OLZ
t
DF
t
OH
t
WC
Read Cycle Time 200 ns Chip Enable Access Ti me 200 ns Address Access Time 200 ns Output Enable Access Time 100 ns Chip Enable to Output in Low Z 5 ns Chip Disable to Output in High Z 60 ns Output Enable to Output in Low Z 5 ns Output Disable to Output in High Z 60 ns Output Hold Time from First of Address, CE, or OE Change 5 ns Write Recovery Time Before Read 10 ms
Input test Waveforms and Measurement Level
3.0V
AC
DRIVING
LEVELS
0.0V
tR, tF < 5 ns
1.5V
AC
MEASUREMENT
LEVEL
Output Test Load
5.0V
1.8K
1.3K
OUTPUT
PIN
100pF
A.C. Read Waveforms
POWER-UP,
STANDBY
ADDRESS ADDRESSES STABLE
CE
OE
WE
DATA
5.0 V
VCC
0V
(1)
t
WC
DEVICE AND
ADDRESS
SELECTION
t
CE
t
OLZ
t
LZ
t
ACC
Note:
1.
CE refers to CE
, and/or CE
1
2
OUTPUT
ENABLED
t
OE
t
RC
DATA VALID
t
OUTPUT VALID
OH
STANDBY,
POWER-DOWN
t
DF
t
DF
HIGH Z
10 AT5FC004
Page 11
AT5FC004
Write Cycle Characteristics
Symbol Parameter Min Max Units
t
WC
t
AS
t
AH
t
DS
t
DH
t
WP
t
BLC
t
WPH
Write Cycle Time 10 ms Address Set-up Time 10 ns Address Hold Time 60 ns Data Set-up Time 60 ns Data Hold Time 10 ns Write Pulse Width 100 ns Byte Load Cycle Time 150 µs Write Pulse Width High 100 ns
A.C. Write Waveforms (Byte Mode)
OE
CE
2
CE
1
WE
A0
A1-A8
A9-A19
DATA
Notes:
1. A20 and A21 specify the pair of AT29C040A devices to be written, while A0 controls the selection of even an d odd bytes. A0, A20, and A21 must be valid throughout the entire pulse.
2. A9 through A19 must specify the sector address during each high to low transition of
t
AS
WE (or CE).
BYTE
ADDRESS
SECTOR
ADDRESS
BYTE 0 BYTE 1 BYTE 510BYTE 2 BYTE 511
t
WP
t
AH
t
t
DS
WE low
DH
t
WPH
t
BLC
t
WC
3.
OE must be high when WE and CE are both low.
All bytes that are not loaded within the sector being pro-
4.
grammed will be indeterminate.
11
Page 12
A.C. Write Waveforms (Word Mode)
OE
CE
1,2
WE
A1-A8
t
AS
BYTE
ADDRESS
t
WP
t
AH
t
DH
t
WPH
t
BLC
t
WC
A9-A19
SECTOR
ADDRESS
t
DS
DATA
WORD 0 WORD 1
1. A20 and A21 specify the pair of AT29C040A devices to be writ­ten; they must be valid throughout the entire
WE low pulse. A0 is
don’t care.
2. A9 through A19 must specify the sector address during each high to low transition of
WE (or CE).
WORD 2
WORD254
3.
OE must be high when WE and CE are both low.
4.
All bytes that are not loaded with in the se ct or bein g pro -
WORD255
grammed will be indeterminate.
12 AT5FC004
Page 13
AT5FC004
Software Data Protected Programming Algorithm
Device 0123
Data Address
Data Address
Data Address
Writes Enabled
Note: 1. Load 3 bytes to corresponding Flash chip segment individually to enable software data protection.
AA
00AAAA
55
005554
A0
00AAAA
Write Bytes
AA
00AAAB
55
005555
A0
00AAAB
Write
Bytes
(1)
AA
10AAAA
55
105554
A0
10AAAA
Write
Bytes
AA
10AAAB
55
105555
A0
10AAAB
Write Bytes
13
Page 14
Software Data Protected Disable Algorithm
Device 0123
(1)
Data Address
Data Address
Data Address
Data Address
Data Address
Data Address
Writes Enabled
Note: 1. Load 6 bytes to corresponding Flash chip segment individually to disable software data protection.
AA
00AAAA
55
005554
80
00AAAA
AA
00AAAA
55
005554
20
00AAAA
Write Bytes
AA
00AAAB
55
005555
80
00AAAB
AA
00AAAB
55
005555
20
00AAAB
Write
Bytes
AA
10AAAA
55
105554
80
10AAAA
AA
10AAAA
55
105554
20
10AAAA
Write
Bytes
AA
10AAAB
55
105555
80
10AAAB
AA
10AAAB
55
105555
20
10AAAB
Write Bytes
14 AT5FC004
Page 15
AT5FC004
Ordering Information
t
ACC
(ns)
200 AT5FC004-20 PCMCIA Type 1 Commercial
Ordering Code Package Operation Range
(0°C to 70°C)
Packaging Information
PCMCIA, Type 1 PC Memory Card Dimensions in millimeters
85.6 0.2 mm
10.0 MIN. (mm)
10.0 MIN. (mm)
54.0 0.1 mm
3.3 0.1 mm
FRONT SIDE
34
68
BACK SIDE
CardWare may be trademarks of others.
1
35
15
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