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MTCH6301-I/ML 데이터시트(PDF) 12 Page - Microchip Technology

부품명 MTCH6301-I/ML
상세설명  The MTCH6301 is a turnkey projected capacitive con-troller that allows easy integration of multi-touch and gestures to create a rich user interface in your design.
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MTCH6301-I/ML 데이터시트(HTML) 12 Page - Microchip Technology

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MTCH6301 PROJECTED CAPACITIVE TOUCH CONTROLLER
DS41663A-page 12
 2012 Microchip Technology Inc.
5.5
Command Protocol
Figure 5-2
depicts
bidirectional
communication
protocol (for reading/writing configuration data).
FIGURE 5-2:
COMMAND PROTOCOL
5.6
Full Command Set
A complete listing of MTCH6301 commands is shown
in Table 5-3. Any commands which contain data bytes,
either sent or received, are shown alongside an
example stream of data in the following sections.
5.6.1
WRITE REGISTER/READ
REGISTER
Writes or reads a single register. Note that all registers
are volatile, and any modified data will be lost on power
down. Registers must be saved to NVRAM to store the
configuration permanently
size:
Number of remaining bytes in packet
cmd:
Command invoked for being responded to
result:
Controller command-specific result
0x00 = Success
0x80 = Parameter out of range
0xFE = Timeout (not enough bytes received)
0xFF = Unrecognized command
0xFD = Invalid parameter
0xFC = Missing or extra parameter
data:
Data associated with command
0x55 [size]
[cmd]
Data 0
...
Data n
0x55 [size]
[res]
Data 0
...
Data n
[cmd]
Command (from Master):
Response (from MTCH6301):
TABLE 5-3:
COMMAND SET
ID
Name
Description
0x00
Enable Touch
Enable touch functionality
0x01
Disable Touch
Disable touch functionality
0x14
Scan Baseline
Instruct controller to scan for a new sensor baseline
0x15
Write Register
Write data to a specific register
0x16
Read Register
Read data from a specific register
0x17
Write NVRAM
Write all current register values to NVRAM
0x18
Software Sleep
Instructs the controller to enter sleep mode
0x19
Erase NVRAM
Erase the contents of the non-volatile RAM section.
0x1A
Manufacturing Test
Perform manufacturing tests on all sensor I/O channels



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