ur7hcpxz-p440 Semtech Corporation, ur7hcpxz-p440 Datasheet - Page 5

• Manufacturer Part Number: ur7hcpxz-p440
• Description: Advanced Click-to-select No-drifttm Ps/2 Force Stick Controller
• Manufacturer: Semtech Corporation

The following table shows the
data report format. Each of the two
position values (X and Y) is
expressed as a 9-bit Two’s
Complement integer with the most
significant bit (the sign bit) stored
separately in Byte 1. Z value
(wheel or scroll) is expressed as an
8-bit Two’s complement integer.
If there is an overflow of the
accumulator, the maximum positive
or negative count is reported
and the corresponding overflow
bit is set.
Copyright Semtech 2000-2001
DOC7-PXZ-P440-DS-111
PS/2 DATA FORMAT
Byte 1
Byte 2
Byte 3
Byte 4 (for wheel function; sent only if output of Z data is enabled by the driver)
Byte 1
Byte 2
Byte 3
DATA REPORT FORMAT TABLE
5
STATUS REPORT FORMAT TABLE
b0
b1
b2
b3
b4
b5
b6
b7
b0
b1
b2
b3
b4
b5
b6
b7
b0
b1
b2
b3
b4
b5
b6
b7
b0
b1
b2
b3
b4
b5
b6
b7
b0
b1
b2
b3
b4
b5
b6
b7
b0 - 1
b2 - 7
b0-7
Left Button status
Right Button Status
Middle Button Status
Reserved
X8: MSB of X data, sign bit
Y8: MSB of Y data, sign bit
X data overflow
Y data overflow
X0: LSB of X data
X1
X2
X3
X4
X5
X6
X7
Y0: LSB of Y data
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Z0: LSB of Z data
Z1
Z2
Z3
Z4
Z5
Z6
Z7: MSB or Z data, sign bit
Right Button
Middle Button
Left Button
Reserved
Scaling - 1:1 (0) / 2:1 (1)
Disable - (0) / enable (1)
Stream - (0) / prompt (1) mode
Current resolution setting
Current sampling rate
1 = depressed
1 = depressed
1 = depressed
Always = 1
1 = negative
1 = negative
1 = overflow
1 = overflow
1 = depressed
1 = depressed
1 = depressed
Always = 0
Always = 0
Always = 0
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