IQS550EV03 S Azoteq, IQS550EV03 S Datasheet - Page 20

• Manufacturer Part Number: IQS550EV03 S
• Description: Touch Sensor Development Tools Trackpad Demo for IQS550
• Manufacturer: Azoteq

Specifications of IQS550EV03 S

• Tool Is For Evaluation Of: IQS550
• Interface Type: I2C, SPI
• Operating Voltage: 1.65 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C

5.6.5 Count Data Read (0x04)
When this address-command is setup, all the
count values can be read from the device.
Each consists of 2 bytes, giving a total of (2 x
TotalTxs x TotalRxs) bytes available. This will
most likely be a large amount of data, and to
obtain better response
recommended to read
Copyright © Azoteq (Pty) Ltd
All Rights Reserved.
(2 x TotalTxs
(2 x TotalTxs) - 1
x TotalRxs) -
2 x TotalTxs
x TotalRxs
(2 x TotalTxs)
Byte
1
2
3
4
1
Byte
.
.
1
2
3
4
:
Count Value[Last Tx][Last Rx] – High Byte
Count Value[Last Tx][Last Rx] – Low Byte
Touch [Last Tx] – High Byte
Touch [Last Tx] – Low Byte
Touch [Tx1] – High Byte
Touch [Tx0] – Low Byte
Touch [Tx1] – Low Byte
Touch[Tx0] – High Byte
Count Value[0][0] – High Byte
Count Value[0][0] – Low Byte
Count Value[0][1] – High Byte
Count Value[0][1] – Low Byte
this continuously.
rate,
Data
Table 5.4
Table 5.5
:
it is NOT
ProxSense
Data
.
.
IQ Switch
IQS550 Trackpad Datasheet
Touch Status Bytes
Count Value Bytes
®
Normally this is only read while setting up the
ATI parameters.
The count values are written out, high byte
first, row by row. Thus all of the first row‟s
(Tx) count values are sent, then the second,
and so on.
Revision 1.04
Series
®
Touch bits (Rx0 = bit0, Rx1 = bit1 …)
Touch bits (Rx0 = bit0, Rx1 = bit1 …)
Touch bits (Rx0 = bit0, Rx1 = bit1 …)
count @ first row, and 2nd
count @ first row, and first
column (thus bottom right)
count @ last row, and last
Description
column (thus top left)
:
Description
column
.
.
November 2012
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