IQS156/58EV02S Azoteq, IQS156/58EV02S Datasheet - Page 6

• Manufacturer Part Number: IQS156/58EV02S
• Description: Touch Sensor Development Tools IQS156/58 Eval Kit
• Manufacturer: Azoteq

Specifications of IQS156/58EV02S

• Rohs: yes
• Interface Type: I2C

9.3 Control Byte Format
A control byte is the first byte received
following the start condition from the master
device. The control byte consists of a 7 bit
device address and the Read/ Write indicator
bit (refer to Figure 9.3).
Address
00h-0Fh
10h-30h
Copyright © Azoteq (Pty) Ltd 2012.
Figure 9.2
All Rights Reserved.
Size(Bytes)
Acknowledge?
Send Control
Did Device
Operation
Continue
with I2C
Send
Start
Byte
Yes
16
32
ACK Polling.
No
9.5 Memory Mapping
ProxSense
Device Specific Data
Device Information
IQ Switch
IQS156 Datasheet
®
9.4 Sub addressing
Each slave device on the serial bus requires a
unique 7 bit device identifier. When the control
byte is sent by the master the device will be
able to determine if it is the intended recipient
of a data transaction. The IQS156 address
selection is controlled with OTP fuse selection.
Four addresses are available, and can be
programmed by USBProg.
Revision 1.7
Series
®
Figure 9.3
MSB
Table 9.1
SA1
0
0
1
1
Slave Address (7 Bit)
Control Byte Format.
I
SA0
2
C Sub Addresses.
0
1
0
1
Address
(7-bit)
0x40
0x41
0x42
0x43
October 2012
Page 6 of 24
R/W
R/W
R/W
R
R
LSB
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