MAX11800_1010 Datasheet, PDF (47/59 Pages) Maxim Integrated Products – Low-Power, Ultra-Small Resistive Touch-Screen Controllers with I2C/SPI Interface

Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I²C/SPI Interface
Table 18. Status and Configuration Registers
HEX
(NOTE 1)
ACCESS
PAIRABLE
AUTO-
INCREMENT
DATA MAX11800/ MAX11802/
LENGTH MAX11801 MAX11803
FUNCTION
00h
R
No
Yes
8
Yes
Yes (Note 2) General Status
01h
R/W
Yes
Yes
8
Yes
Yes
General Configuration
02h
R/W
Yes
Yes
8
Yes
Yes
Measurement Resolution
Configuration
03h
R/W
Yes
Yes
8
Yes
Yes
Measurement Averaging
Configuration
04h
R/W
Yes
Yes
8
Yes
Yes
ADC Sample Time
Configuration
05h
R/W
Yes
Yes
8
Yes
Yes
Panel Setup Times
Configuration
06h
R/W
Yes
Yes
8
Yes
Yes
ADC Delay Initial Conversion
Configuration
07h
R/W
Yes
Yes
8
Yes
Yes
Touch-Detect Pullup Times
Configuration
08h
R/W
Yes
Yes
8
Yes
No
Autonomous Mode Timing
Configuration)
09h
R/W
Yes
Yes
8
Yes
No
Aperture Settings (Auto)
Configuration
0Ah
R/W
Yes
Yes
8
Yes
Yes
Auxiliary Measurement
Configuration
0Bh
R/W
Yes
Yes
8
Yes
Yes (Note 2) Operating Mode Configuration
Note 1: Both SPI and I²C interfaces use a 7-bit register address format. I²C interfaces should left-justify the 7-bit addresses given in
Table 18 (e.g., to access register 0Bh use the command byte construction {000_1011_X}, where X is a don't care).
Note 2: Not all bits apply to the MAX11802/MAX11803. See the individual register definitions.
Table 19. Data Readback Command Summary
HEX* ACCESS
AUTO-
INCREMENT
DATA
LENGTH
MAX11800/
MAX11801
MAX11802/
MAX11803
FUNCTION
AUTONOMOUS CONVERSION MODE READBACK COMMANDS
50h
R
N
INF
Yes
No
Read next available FIFO data block
DIRECT CONVERSION MODE READBACK COMMANDS
52h
R
Y
8
Yes
Yes
X MSB (direct conversion result)
53h
R
Y
8
Yes
Yes
X LSB (direct conversion result)
54h
R
Y
8
Yes
Yes
Y MSB (direct conversion result)
55h
R
Y
8
Yes
Yes
Y LSB (direct conversion result)
56h
R
Y
8
Yes
Yes
Z1 MSB (direct conversion result)
57h
R
Y
8
Yes
Yes
Z1 LSB (direct conversion result)
58h
R
Y
8
Yes
Yes
Z2 MSB (direct conversion result)
59h
R
Y
8
Yes
Yes
Z2 LSB (direct conversion result)
5Ah
R
Y
8
Yes
Yes
AUX MSB (direct conversion result)
5Bh
R
N
8
Yes
Yes
AUX LSB (direct conversion result)
*Both SPI and I²C interfaces use a 7-bit register address format. I²C interfaces should left-justify the 7-bit addresses given in
Table 19 (e.g., to access register 50h, use the command byte construction {101_0000_X}, where X is a don't care).
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