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PDF ( 数据手册 , 数据表 ) EKM8003

零件编号 EKM8003
描述 Optical Mouse Controller
制造商 ELAN Microelectronics
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EKM8003 数据手册, 描述, 功能
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EKM8003
Optical Mouse Controller
Product
Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
December 2002







EKM8003 pdf, 数据表
EKM8003
Optical Mouse Controller
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microcontroller should not leave SDIO floating until the next transmission (although
that will not cause any communication difficulties).
5. In case of synchronization failure, both the ADNS-2610/2620 and the microcontroller
may drive SDIO. The ADNS-2610/2620 can withstand 30 mA of short circuit current
and will withstand infinite duration short circuit conditions.
6. The microcontroller can verify a successful write operation by issuing a read
command to the same address and comparing the written data to the read data.
The microcontroller can verify the synchronization of the serial port by periodically
reading the product ID from status register.
4.2 Optical Sensor Resolution Selection
Optical Sensor ANDS-2051 resolution can be programmed as 400 or 800 cpi (counts
per inch).
The eKM8003 has a selection pin, CPIS, to select the resolution. The default resolution
is 400 cpi. If the selection pin is tied to ground, the eKM8003 will program the
ANDS-2051 to 800 cpi. To program the resolution, the eKM8003 write data into the
ANDS-2051’s configuration register address, 0x0a.
4.3 Registers of ADNS-2051
4.3.1 Product ID
Address:0x00
Reset Value: 0x02
Usage: The value in this register does not change, it can be used to verify that the
serial communications link is OK.
4.3.2 Motion
Address: 0x02
Reset Value: 0x00
7
MOT
6
Reserved
5
FAULT
4
OVFY
3
OVFX
2
Reserved
1
Reserved
0
RES
Usage : Register 0x02 allows the user to determine if motion has occurred since the
last time it was read. If so, then the eKM8003 should read registers 0x03 and
0x04 to get the accumulated motion. It also tells if the motion buffers have
overflowed and whether or not an LED fault occurred since the last reading.
The current resolution is also shown.
4 Product Specification (V1.0) 12.17.2002
(This specification is subject to change without further notice)







EKM8003 equivalent, schematic
EKM8003
Optical Mouse Controller
VDD
CLK
DAT A
VSS
RIR
10uF mus t clos e
to PS/2 VDD
0.1uF mus t clos e
to Elan IC VDD
10 uF
4.7K
4
5
1
3
RPT R
20pF
20pF
0 .1uF
4.7K
14
VDD /RE SET 4
1 CLK
2 DAT A
SCLK 18
SDIO 17
5 VSS
NC 3
1 6 OSCI
CP IS 13
4MHz
K4 6
O SC O
15
8 Z1
9 Z2
K5 7
L 10
R 11
M 12
Ir/P T R
Fo r Scro llin g W heel
Elan eKM 8003
400CPI
800CPI
L
R
M
0.1uF and 4.7uF mus t
clos e to s ens or VDD
0 .1 uF
4.7 uF
18MHz
11
13
1
VDD OSC_ OUT
SCL K
O SC_ I N
9
1 6 SDIO
15 PD
2
XA
3 XB
4 YB
5 YA
14 R_BIN
XY_LED 6
REFA 7
8
REFB
10
GN D
GND 12
Lens HLMP-ED80
Surface T ext ure
0.1 uF
2.2 uF
R1 A g ilen t
A DNS-2051
FIG4. 3-D 3-Keys with Photo Couples input for Z/4
Suggestion: The PTR should cover with a mask to avoid light interference.
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10uF mus t clos e
to PS/2 VDD
0.1uF mus t clos e
to Elan IC VDD
VDD
CLK
DAT A
VSS
RIR
1 0uF
4.7K
4
5
1
3
20pF
RPT R
20pF
0 .1 uF
4.7K
14
VDD /RE SE T 4
1 CLK
2 DAT A
18
SCL K
SDIO 17
5 VSS
NC 3
16 OSCI
CP IS 13
4MHz
K4 6
O SC O
15
8 Z1
9 Z2
K5 7
L 10
R 11
M 12
400CPI
800CPI
K4
K5
L
R
M
Ir/P T R
Fo r Scro llin g W h eel
Elan eKM 8003
10K
0.1uF and 4.7uF mus t
clos e to s ens or VDD
0 .1uF
4.7 uF
18MHz
11
13
1
VDD OSC_ OUT
SCL K
OSC_ IN
9
1 6 SDIO
15 PD
2 XA
3 XB
4 YB
5 YA
14 R_BIN
XY_LED 6
REFA 7
8
REFB
10
GN D
GND 1 2
Lens HLMP-ED80
Surface T ex t ure
0 .1 uF 2 .2 uF
R1 A gilent
A DNS-2051
FIG5. 3-D 5-Keys with Photo Couples input for Z/2
Suggestion: The PTR should cover with a mask to avoid light interference.
12
Product Specification (V1.0) 12.17.2002
(This specification is subject to change without further notice)










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