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MGC3140 Datasheet(PDF) 30 Page - Microchip Technology

Part # MGC3140
Description  MGC3140 3D Tracking and Gesture Controller Data Sheet
PDF  49 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MGC3140 Datasheet(HTML) 30 Page - Microchip Technology

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Figure 7-1. Example for TS Line Indication and Following Read Operation
TS
SCL
SDA
Note:  The TS line handling of the MGC3140 is different to MGC3x30 devices. With the MGC3140 there
is no need for the host to assert the TS line.
7.2.2
I2C Message Buffer
The MGC3140 has an internal FIFO I2C message buffer for a total of five messages. After a I2C message
read process is started by the host, the message will be deleted from the buffer. Also if the I2C transfer of
a message is read by the host and the transfer is interrupted, the message will be deleted. For further
information, refer to “MGC3140 - GestIC Library Interface Description User’s Guide”(DS40001875).
7.2.3
I2C Addressing
The MGC3140 Device ID 7-bit address is: 0x42 (0b1000010) depending on the interface selection pin
configuration. Refer to the table below:
Table 7-4. I2C Device ID Address
Device ID Address, 7-bit
Address
offset
A7
A6
A5
A4
A3
A2
A1
0x42
1
0
0
0
0
1
0
0x43
1
0
0
0
0
1
1
7.2.4
Timing Descriptions
I2C Clock - The I2C clock operates up to 400 kHz.
MGC3140
Interface Description
© 2018 Microchip Technology Inc.
DS40002037A-page 30



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