AR1000_16 Datasheet, PDF (32/61 Pages) Microchip Technology – AR1000 Series Resistive Touch Screen Controller

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
9.2 AR1000 Commands
TABLE 9-5: COMMAND SET SUMMARY
Command
Value
Command Description
0x10 GET_VERSION
0x12 ENABLE_TOUCH
0x13
0x14
DISABLE_TOUCH
CALIBRATE_MODE
0x20 REGISTER_READ
0x21 REGISTER_WRITE
0x22
0x23
REGISTER_START_ADDRESS_REQUEST
REGISTERS_WRITE_TO_EEPROM
0x28 EEPROM_READ
0x29
0x2B
EEPROM_WRITE
EEPROM_WRITE_TO_REGISTERS
9.3 AR1000 Command Descriptions
9.3.1 GET_VERSION – 0x10
Controller will return version number and type.
Send: <0x55><0x01><0x10>
Receive: <0x55><0x05><Response><0x10><Ver-
sion High><Version Low><Type>
where <Type>
REGISTER 9-1: GET_VERSION <TYPE> FORMAT
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RS1
RS0
TP5
TP4
TP3
TP2
TP1
bit 7
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
bit 7-6
bit 5-0
RS<1:0>: Resolution of Touch Coordinates bits
00 = 8-bit
01 = 10-bit
10 = 12-bit
TP<5:0>: Type of Controller bits
001010 = ARA10
R/W
TP0
bit 0
DS40001393C-page 32
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