MAX11803 Maxim Integrated Products, MAX11803 Datasheet - Page 53

• Manufacturer Part Number: MAX11803
• Description: (MAX11800 - MAX11803) Ultra-Small Resistive Touch-Screen Controllers
• Manufacturer: Maxim Integrated Products

www.DataSheet4U.com
Auxiliary Measurement Configuration Register (0x0A)
Note: A delimiter refers to the auxiliary input (AUX). Auxiliary measurements can only be requested in direct conversion modes.
Low-Power, Ultra-Small Resistive Touch-Screen
NAME
DEFAULT
BIT
7:5
4:3
2:1
0
D_CV_A[3:0]
T_SAMPLE_A[1:0]
AVGA[1:0]
RESA
BIT 7
______________________________________________________________________________________
0
NAME
D_CV_A[3:0]
BIT 6
0
Controllers with I
Delay initial auxiliary conversion
000: 10μs
001: 100μs
010: 500μs
011: 1ms
100: 5ms
101: 10ms
110: 50ms
111: 100ms
Sampling time for auxiliary measurements
00: 4 x (2MHz oscillator clock period) = 2μs
01: 16 x (2MHz oscillator clock period) = 8μs
10: 64 x (2MHz oscillator clock period) = 32μs
11: 256 x (2MHz oscillator clock period) = 128μs
Averaging sample depth for auxiliary measurements
If AVG_FLT = 0 (see the Operating Mode Configuration Register (0x0B) section)
00: Single sample, no averaging
01: Take four samples, average two median samples
10: Take eight samples, average four median samples
11: Take 16 samples, average eight median samples
If AVG_FLT = 1 (see the Operating Mode Configuration Register (0x0B) section)
00: Single sample, no averaging
01: Take four samples, average all samples
10: Take eight samples, average all samples
11: Take 16 samples, average all samples
Resolution for auxiliary measurements
0: 12-bit conversion (see the description of PWR_SAV in the Measurement Resolution
Configuration Register (0x02) section)
1: 8-bit conversion
BIT 5
0
BIT 4
T_SAMPLE_A[1:0]
0
BIT 3
0
DESCRIPTION
2
C/SPI Interface
BIT 2
0
AVGA[1:0]
BIT 1
0
BIT 0
RESA
0
53